Implemented options class.

src/Generator.Converter/Options.cs

@@ -1,11 +1,43 @@
-using CommandLine;
+using System.Collections.Generic;
+using CommandLine;
+using CommandLine.Text;
 
 namespace OpenTK.Convert
 {
     public class Options
     {
+        [Option('p', "prefix",
+            HelpText = "The prefix to remove from parsed functions and constants.",
+            Required = true,
+            Default = "gl")]
         public string Prefix { get; set; }
-        public string OutputPath { get; set; }
-        public string InputFiles { get; set; }
+
+        [Option('o', "output-file",
+            HelpText = "The path to the output file. Defaults to stdout if no path is provided.")]
+        public string OutputFile { get; set; }
+
+        [Option('i', "input-files",
+            HelpText = "A list of the Khronos XML files to parse into OpenTK XML. Remote resources in the form of URLs are supported.",
+            Required = true)]
+        public IEnumerable<string> InputFiles { get; set; }
+
+        [Usage(ApplicationAlias = "Convert.exe")]
+        public static IEnumerable<Example> Examples
+        {
+            get
+            {
+                yield return new Example
+                (
+                    "Converting local files",
+                    new Options { Prefix = "gl", OutputFile = "signatures.xml", InputFiles = new []{ "gl.xml" } }
+                );
+
+                yield return new Example
+                (
+                    "Converting latest remote specification",
+                    new Options { Prefix = "gl", OutputFile = "signatures.xml", InputFiles = new []{ "https://cvs.khronos.org/svn/repos/ogl/trunk/doc/registry/public/api/gl.xml" } }
+                );
+            }
+        }
     }
 }