tools/Sandcastle/Source/CommandLine/BooleanOption.cs

   1 // Copyright © Microsoft Corporation.
   2 // This source file is subject to the Microsoft Permissive License.
   3 // See http://www.microsoft.com/resources/sharedsource/licensingbasics/sharedsourcelicenses.mspx.
   4 // All other rights reserved.
   5
   6 using System;
   7 using System.IO;
   8 using System.Collections.Generic;
   9
  10 namespace Microsoft.Ddue.Tools.CommandLine {
  11
  12     public sealed class BooleanOption : Option {
  13
  14         public BooleanOption(string name) : base(name) { }
  15
  16         public BooleanOption(string name, string description) : base(name, description) { }
  17
  18         internal override ParseResult ParseArgument(string argument) {
  19             if ((argument != "+") && (argument != "-")) return (ParseResult.MalformedArgument);
  20             if (present) return (ParseResult.MultipleOccurance);
  21             present = true;
  22             if (argument == "+") {
  23                 value = true;
  24             } else {
  25                 value = false;
  26             }
  27             return (ParseResult.Success);
  28         }
  29
  30         internal override void WriteTemplate(TextWriter writer) {
  31             writer.WriteLine("/{0}+|-", Name);
  32         }
  33
  34     }
  35
  36 }