public void MultipleSubParsers()
{
var parser = new ArgumentParser();
parser.AddSubparsers(help: "Help 1");
try
{
parser.AddSubparsers(help: "Help 2");
Assert.Fail("ArgumentParseException expected");
}
catch (ArgumentParseException e)
{
Assert.AreEqual("cannot have multiple subparser arguments", e.Message);
}
}
public void SubParserHelp()
{
var parser = new ArgumentParser();
parser.ProgName = "prog";
parser.Description = "This is prog description.";
parser.AddArgument("--foo", action: "toggle", help: "foo help");
var subParsers = parser.AddSubparsers(help: "sub-command help");
var parserA = subParsers.AddParser("a", help: "a help");
parserA.AddArgument("bar", "single", help: "bar help");
var parserB = subParsers.AddParser("b", help: "b help");
parserB.AddArgument("--baz", "single", help: "baz help");
var expected = @"Usage: prog [OPTION]... [ARG]...
This is prog description.
Positional arguments:
command sub-command help
Optional arguments:
--foo foo help".Replace("\r", string.Empty);
Assert.AreEqual(expected, parser.HelpText);
}
public void SubParserParentArgumentOrder()
{
var parser = new ArgumentParser();
parser.AddArgument("--foo", action: "toggle", help: "foo help");
var subparsers = parser.AddSubparsers(help: "sub-command help");
var parserA = subparsers.AddParser("a", help: "a help");
parserA.AddArgument("bar", "single", help: "bar help");
var parserB = subparsers.AddParser("b", help: "b help");
parserB.AddArgument("--baz", "single", help: "baz help");
try
{
var args = parser.ParseArgs(new string[] { "a", "1", "--foo" });
Assert.Fail("ArgumentParseException expected");
}
catch (ArgumentParseException e)
{
Assert.AreEqual("Unrecognized arguments: --foo", e.Message);
}
}
public void SubParserDefaults()
{
var parser = new ArgumentParser();
parser.AddArgument("--foo", action: "toggle", help: "foo help");
var subparsers = parser.AddSubparsers(help: "sub-command help");
var parserA = subparsers.AddParser("a", help: "a help");
parserA.AddArgument("bar", "single", help: "bar help");
parserA.SetDefault("func", "FuncA()");
var parserB = subparsers.AddParser("b", help: "b help");
parserB.AddArgument("--baz", "single", help: "baz help");
parserB.SetDefault("func", "FuncB()");
var args = parser.ParseArgs(new string[] { "--foo", "b", "--baz", "1" });
Assert.AreEqual("FuncB()", args["func"]);
args = parser.ParseArgs(new string[] { "--foo", "a", "1" });
Assert.AreEqual("FuncA()", args["func"]);
}
public void SubParsers()
{
var parser = new ArgumentParser();
parser.AddArgument("--foo", action: "toggle", help: "foo help");
var subparsers = parser.AddSubparsers(help: "sub-command help");
var parserA = subparsers.AddParser("a", help: "a help");
parserA.AddArgument("bar", "single", help: "bar help");
var parserB = subparsers.AddParser("b", help: "b help");
parserB.AddArgument("--baz", "single", help: "baz help");
var args = parser.ParseArgs(new string[] { "--foo", "b", "--baz", "1" });
Assert.AreEqual(2, args.Count);
Assert.AreEqual(true, args["foo"]);
Assert.AreEqual("1", args["baz"]);
args = parser.ParseArgs(new string[] { "--foo", "a", "1" });
Assert.AreEqual(2, args.Count);
Assert.AreEqual(true, args["foo"]);
Assert.AreEqual("1", args["bar"]);
}
public static void Run(string[] args)
{
var parser = new ArgumentParser();
parser.AddArgument("--foo", action: "toggle", help: "foo help");
var subparsers = parser.AddSubparsers(help: "sub-command help");
var parserA = subparsers.AddParser("a", help: "a help");
parserA.AddArgument("bar", "single", help: "bar help");
var parserB = subparsers.AddParser("b", help: "b help");
parserB.AddArgument("--baz", "single", help: "baz help");
if (args.Contains("--help"))
{
Console.WriteLine(parser.HelpText);
Environment.Exit(0);
}
IDictionary <string, dynamic> parsedArgs = null;
try
{
parsedArgs = parser.ParseArgs(args);
}
catch (ArgumentParseException e)
{
Console.WriteLine($"Error: {e.Message}");
Environment.Exit(2);
}
foreach (var entry in parsedArgs)
{
if (entry.Value is IList <string> )
{
var s = string.Join(", ", entry.Value as IList <string>);
Console.WriteLine($"> '{entry.Key}': '{s}'");
}
else
{
Console.WriteLine($"> '{entry.Key}': '{entry.Value}'");
}
}
}