public void XCommandSystemFilterTest()
{
var filterList = new Dictionary <string, object>
{
{ "help", null },
{ "quit", null },
{ "play", null },
{ "ply", null }
};
// Exact match
var result = XCommandSystem.FilterList(filterList, "help");
Assert.AreEqual(1, result.Count());
Assert.AreEqual("help", result.First().Key);
// The first occurence of y
result = XCommandSystem.FilterList(filterList, "y");
Assert.AreEqual(1, result.Count());
Assert.AreEqual("ply", result.First().Key);
// The smallest word
result = XCommandSystem.FilterList(filterList, "zorn");
Assert.AreEqual(1, result.Count());
Assert.AreEqual("ply", result.First().Key);
// First letter match
result = XCommandSystem.FilterList(filterList, "q");
Assert.AreEqual(1, result.Count());
Assert.AreEqual("quit", result.First().Key);
// Ignore other letters
result = XCommandSystem.FilterList(filterList, "palyndrom");
Assert.AreEqual(1, result.Count());
Assert.AreEqual("play", result.First().Key);
filterList.Add("pla", null);
// Ambiguous command
result = XCommandSystem.FilterList(filterList, "p");
Assert.AreEqual(2, result.Count());
Assert.IsTrue(result.Any(r => r.Key == "ply"));
Assert.IsTrue(result.Any(r => r.Key == "pla"));
}
public virtual ICommandResult Execute(ExecutionInformation info, IReadOnlyList <ICommand> arguments, IReadOnlyList <CommandResultType> returnTypes)
{
string result;
if (arguments.Count == 0)
{
if (returnTypes.Contains(CommandResultType.Command))
{
return(new CommandCommandResult(this));
}
result = string.Empty;
}
else
{
var comResult = arguments[0].Execute(info, Array.Empty <ICommand>(), XCommandSystem.ReturnString);
result = ((StringCommandResult)comResult).Content;
}
var commandResults = XCommandSystem.FilterList(commands, result).ToArray();
if (commandResults.Length > 1)
{
throw new CommandException("Ambiguous call, possible subcommands: " + string.Join(", ", commandResults.Select(g => g.Key)), CommandExceptionReason.AmbiguousCall);
}
if (commandResults.Length == 0)
{
throw new CommandException("No matching command", CommandExceptionReason.AmbiguousCall);
}
if (commandResults.Length == 1 && result == string.Empty && commandResults[0].Key != string.Empty)
{
throw new CommandException("Ambiguous call, possible subcommands: " + string.Join(", ", commands.Keys.Take(4)) + ", ...", CommandExceptionReason.AmbiguousCall);
}
var argSubList = arguments.TrySegment(1);
return(commandResults[0].Value.Execute(info, argSubList, returnTypes));
}