Bump version

README.MD

@@ -6,6 +6,8 @@ This library contains logic to both parse commandlines using typed inputs as wel
 
 All inputs allow for non-flag inputs in both `a=b` and `a b` formats. This allows for greater flexibility for cross-platform support. Flags for each input are fully defined by the implementer, so inputs of the form `-a`, `--a`, `/a`, and `a` are all accepted and can even be mixed. The only restriction is that flags should not end with the `=` character as it may interfere with default parsing.
 
+Find the link to the Nuget package [here](https://www.nuget.org/packages/SabreTools.CommandLine).
+
 For an example of a program implementing the library as well as the original source of this library code, see [SabreTools](https://github.com/SabreTools/SabreTools).
 
 ## Special Types

SabreTools.CommandLine.Test/CommandSetTests.cs

@@ -1,4 +1,6 @@
-using SabreTools.CommandLine.Inputs;
+using System;
+using System.Collections.Generic;
+using SabreTools.CommandLine.Inputs;
 using Xunit;
 
 namespace SabreTools.CommandLine.Test
@@ -90,5 +92,780 @@ namespace SabreTools.CommandLine.Test
             bool actualTop3 = featureSet.IsTopLevel("input3");
             Assert.False(actualTop3);
         }
+
+        #region GetBoolean
+
+        [Fact]
+        public void GetBoolean_InvalidKey_DefaultValue()
+        {
+            var commandSet = new CommandSet();
+            var child = new BooleanInput("b", "b", "b");
+            commandSet.Add(child);
+
+            bool actual = commandSet.GetBoolean("c");
+            Assert.False(actual);
+        }
+
+        [Fact]
+        public void GetBoolean_Exists_WrongType_Throws()
+        {
+            var commandSet = new CommandSet();
+            var child = new MockUserInput("b", "b", "b");
+            commandSet.Add(child);
+
+            Assert.Throws<ArgumentException>(() => _ = commandSet.GetBoolean("b"));
+        }
+
+        [Fact]
+        public void GetBoolean_Exists_Returns()
+        {
+            var commandSet = new CommandSet();
+            var child = new BooleanInput("b", "b", "b");
+            commandSet.Add(child);
+
+            int index = 0;
+            child.ProcessInput(["b", "true"], ref index);
+
+            bool actual = commandSet.GetBoolean("b");
+            Assert.True(actual);
+        }
+
+        [Fact]
+        public void GetBoolean_NestedExists_Returns()
+        {
+            var commandSet = new CommandSet();
+            var child = new MockUserInput("b", "b", "b");
+            commandSet.Add(child);
+            var subChild = new BooleanInput("c", "c", "c");
+            child.Add(subChild);
+
+            int index = 0;
+            subChild.ProcessInput(["c", "true"], ref index);
+
+            bool actual = commandSet.GetBoolean("c");
+            Assert.True(actual);
+        }
+
+        #endregion
+
+        #region GetFeature
+
+        [Fact]
+        public void GetFeature_InvalidKey_Null()
+        {
+            var commandSet = new CommandSet();
+            var child = new MockFeature("b", "b", "b");
+            commandSet.Add(child);
+
+            Feature? actual = commandSet.GetFeature("c");
+            Assert.Null(actual);
+        }
+
+        [Fact]
+        public void GetFeature_Exists_WrongType_Throws()
+        {
+            var commandSet = new CommandSet();
+            var child = new MockUserInput("b", "b", "b");
+            commandSet.Add(child);
+
+            Assert.Throws<ArgumentException>(() => _ = commandSet.GetFeature("b"));
+        }
+
+        [Fact]
+        public void GetFeature_Exists_Returns()
+        {
+            var commandSet = new CommandSet();
+            var child = new MockFeature("b", "b", "b");
+            commandSet.Add(child);
+
+            int index = 0;
+            child.ProcessInput(["b"], ref index);
+
+            Feature? actual = commandSet.GetFeature("b");
+            Assert.NotNull(actual);
+            Assert.Equal("b", actual.Name);
+            Assert.True(actual.Value);
+        }
+
+        [Fact]
+        public void GetFeature_NestedExists_Returns()
+        {
+            var commandSet = new CommandSet();
+            var child = new MockUserInput("b", "b", "b");
+            commandSet.Add(child);
+            var subChild = new MockFeature("c", "c", "c");
+            child.Add(subChild);
+
+            int index = 0;
+            subChild.ProcessInput(["c"], ref index);
+
+            Feature? actual = commandSet.GetFeature("c");
+            Assert.NotNull(actual);
+            Assert.Equal("c", actual.Name);
+            Assert.True(actual.Value);
+        }
+
+        #endregion
+
+        #region GetInt8
+
+        [Fact]
+        public void GetInt8_InvalidKey_DefaultValue()
+        {
+            var commandSet = new CommandSet();
+            var child = new Int8Input("b", "b", "b");
+            commandSet.Add(child);
+
+            sbyte actual = commandSet.GetInt8("c");
+            Assert.Equal(sbyte.MinValue, actual);
+        }
+
+        [Fact]
+        public void GetInt8_Exists_WrongType_Throws()
+        {
+            var commandSet = new CommandSet();
+            var child = new MockUserInput("b", "b", "b");
+            commandSet.Add(child);
+
+            Assert.Throws<ArgumentException>(() => _ = commandSet.GetInt8("b"));
+        }
+
+        [Fact]
+        public void GetInt8_Exists_Returns()
+        {
+            var commandSet = new CommandSet();
+            var child = new Int8Input("b", "b", "b");
+            commandSet.Add(child);
+
+            int index = 0;
+            child.ProcessInput(["b", "5"], ref index);
+
+            sbyte actual = commandSet.GetInt8("b");
+            Assert.Equal(5, actual);
+        }
+
+        [Fact]
+        public void GetInt8_NestedExists_Returns()
+        {
+            var commandSet = new CommandSet();
+            var child = new MockUserInput("b", "b", "b");
+            commandSet.Add(child);
+            var subChild = new Int8Input("c", "c", "c");
+            child.Add(subChild);
+
+            int index = 0;
+            subChild.ProcessInput(["c", "5"], ref index);
+
+            sbyte actual = commandSet.GetInt8("c");
+            Assert.Equal(5, actual);
+        }
+
+        #endregion
+
+        #region GetInt16
+
+        [Fact]
+        public void GetInt16_InvalidKey_DefaultValue()
+        {
+            var commandSet = new CommandSet();
+            var child = new Int16Input("b", "b", "b");
+            commandSet.Add(child);
+
+            short actual = commandSet.GetInt16("c");
+            Assert.Equal(short.MinValue, actual);
+        }
+
+        [Fact]
+        public void GetInt16_Exists_WrongType_Throws()
+        {
+            var commandSet = new CommandSet();
+            var child = new MockUserInput("b", "b", "b");
+            commandSet.Add(child);
+
+            Assert.Throws<ArgumentException>(() => _ = commandSet.GetInt16("b"));
+        }
+
+        [Fact]
+        public void GetInt16_Exists_Returns()
+        {
+            var commandSet = new CommandSet();
+            var child = new Int16Input("b", "b", "b");
+            commandSet.Add(child);
+
+            int index = 0;
+            child.ProcessInput(["b", "5"], ref index);
+
+            short actual = commandSet.GetInt16("b");
+            Assert.Equal(5, actual);
+        }
+
+        [Fact]
+        public void GetInt16_NestedExists_Returns()
+        {
+            var commandSet = new CommandSet();
+            var child = new MockUserInput("b", "b", "b");
+            commandSet.Add(child);
+            var subChild = new Int16Input("c", "c", "c");
+            child.Add(subChild);
+
+            int index = 0;
+            subChild.ProcessInput(["c", "5"], ref index);
+
+            short actual = commandSet.GetInt16("c");
+            Assert.Equal(5, actual);
+        }
+
+        #endregion
+
+        #region GetInt32
+
+        [Fact]
+        public void GetInt32_InvalidKey_DefaultValue()
+        {
+            var commandSet = new CommandSet();
+            var child = new Int32Input("b", "b", "b");
+            commandSet.Add(child);
+
+            int actual = commandSet.GetInt32("c");
+            Assert.Equal(int.MinValue, actual);
+        }
+
+        [Fact]
+        public void GetInt32_Exists_WrongType_Throws()
+        {
+            var commandSet = new CommandSet();
+            var child = new MockUserInput("b", "b", "b");
+            commandSet.Add(child);
+
+            Assert.Throws<ArgumentException>(() => _ = commandSet.GetInt32("b"));
+        }
+
+        [Fact]
+        public void GetInt32_Exists_Returns()
+        {
+            var commandSet = new CommandSet();
+            var child = new Int32Input("b", "b", "b");
+            commandSet.Add(child);
+
+            int index = 0;
+            child.ProcessInput(["b", "5"], ref index);
+
+            int actual = commandSet.GetInt32("b");
+            Assert.Equal(5, actual);
+        }
+
+        [Fact]
+        public void GetInt32_NestedExists_Returns()
+        {
+            var commandSet = new CommandSet();
+            var child = new MockUserInput("b", "b", "b");
+            commandSet.Add(child);
+            var subChild = new Int32Input("c", "c", "c");
+            child.Add(subChild);
+
+            int index = 0;
+            subChild.ProcessInput(["c", "5"], ref index);
+
+            int actual = commandSet.GetInt32("c");
+            Assert.Equal(5, actual);
+        }
+
+        #endregion
+
+        #region GetInt64
+
+        [Fact]
+        public void GetInt64_InvalidKey_DefaultValue()
+        {
+            var commandSet = new CommandSet();
+            var child = new Int64Input("b", "b", "b");
+            commandSet.Add(child);
+
+            long actual = commandSet.GetInt64("c");
+            Assert.Equal(long.MinValue, actual);
+        }
+
+        [Fact]
+        public void GetInt64_Exists_WrongType_Throws()
+        {
+            var commandSet = new CommandSet();
+            var child = new MockUserInput("b", "b", "b");
+            commandSet.Add(child);
+
+            Assert.Throws<ArgumentException>(() => _ = commandSet.GetInt64("b"));
+        }
+
+        [Fact]
+        public void GetInt64_Exists_Returns()
+        {
+            var commandSet = new CommandSet();
+            var child = new Int64Input("b", "b", "b");
+            commandSet.Add(child);
+
+            int index = 0;
+            child.ProcessInput(["b", "5"], ref index);
+
+            long actual = commandSet.GetInt64("b");
+            Assert.Equal(5, actual);
+        }
+
+        [Fact]
+        public void GetInt64_NestedExists_Returns()
+        {
+            var commandSet = new CommandSet();
+            var child = new MockUserInput("b", "b", "b");
+            commandSet.Add(child);
+            var subChild = new Int64Input("c", "c", "c");
+            child.Add(subChild);
+
+            int index = 0;
+            subChild.ProcessInput(["c", "5"], ref index);
+
+            long actual = commandSet.GetInt64("c");
+            Assert.Equal(5, actual);
+        }
+
+        #endregion
+
+        #region GetString
+
+        [Fact]
+        public void GetString_InvalidKey_DefaultValue()
+        {
+            var commandSet = new CommandSet();
+            var child = new StringInput("b", "b", "b");
+            commandSet.Add(child);
+
+            string? actual = commandSet.GetString("c");
+            Assert.Null(actual);
+        }
+
+        [Fact]
+        public void GetString_Exists_WrongType_Throws()
+        {
+            var commandSet = new CommandSet();
+            var child = new MockUserInput("b", "b", "b");
+            commandSet.Add(child);
+
+            Assert.Throws<ArgumentException>(() => _ = commandSet.GetString("b"));
+        }
+
+        [Fact]
+        public void GetString_Exists_Returns()
+        {
+            var commandSet = new CommandSet();
+            var child = new StringInput("b", "b", "b");
+            commandSet.Add(child);
+
+            int index = 0;
+            child.ProcessInput(["b", "value"], ref index);
+
+            string? actual = commandSet.GetString("b");
+            Assert.Equal("value", actual);
+        }
+
+        [Fact]
+        public void GetString_NestedExists_Returns()
+        {
+            var commandSet = new CommandSet();
+            var child = new MockUserInput("b", "b", "b");
+            commandSet.Add(child);
+            var subChild = new StringInput("c", "c", "c");
+            child.Add(subChild);
+
+            int index = 0;
+            subChild.ProcessInput(["c", "value"], ref index);
+
+            string? actual = commandSet.GetString("c");
+            Assert.Equal("value", actual);
+        }
+
+        #endregion
+
+        #region GetStringList
+
+        [Fact]
+        public void GetStringList_InvalidKey_DefaultValue()
+        {
+            var commandSet = new CommandSet();
+            var child = new StringListInput("b", "b", "b");
+            commandSet.Add(child);
+
+            List<string> actual = commandSet.GetStringList("c");
+            Assert.Empty(actual);
+        }
+
+        [Fact]
+        public void GetStringList_Exists_WrongType_Throws()
+        {
+            var commandSet = new CommandSet();
+            var child = new MockUserInput("b", "b", "b");
+            commandSet.Add(child);
+
+            Assert.Throws<ArgumentException>(() => _ = commandSet.GetStringList("b"));
+        }
+
+        [Fact]
+        public void GetStringList_Exists_Returns()
+        {
+            var commandSet = new CommandSet();
+            var child = new StringListInput("b", "b", "b");
+            commandSet.Add(child);
+
+            int index = 0;
+            child.ProcessInput(["b", "value"], ref index);
+
+            List<string> actual = commandSet.GetStringList("b");
+            string value = Assert.Single(actual);
+            Assert.Equal("value", value);
+        }
+
+        [Fact]
+        public void GetStringList_NestedExists_Returns()
+        {
+            var commandSet = new CommandSet();
+            var child = new MockUserInput("b", "b", "b");
+            commandSet.Add(child);
+            var subChild = new StringListInput("c", "c", "c");
+            child.Add(subChild);
+
+            int index = 0;
+            subChild.ProcessInput(["c", "value"], ref index);
+
+            List<string> actual = commandSet.GetStringList("c");
+            string value = Assert.Single(actual);
+            Assert.Equal("value", value);
+        }
+
+        #endregion
+
+        #region GetUInt8
+
+        [Fact]
+        public void GetUInt8_InvalidKey_DefaultValue()
+        {
+            var commandSet = new CommandSet();
+            var child = new UInt8Input("b", "b", "b");
+            commandSet.Add(child);
+
+            byte actual = commandSet.GetUInt8("c");
+            Assert.Equal(byte.MinValue, actual);
+        }
+
+        [Fact]
+        public void GetUInt8_Exists_WrongType_Throws()
+        {
+            var commandSet = new CommandSet();
+            var child = new MockUserInput("b", "b", "b");
+            commandSet.Add(child);
+
+            Assert.Throws<ArgumentException>(() => _ = commandSet.GetUInt8("b"));
+        }
+
+        [Fact]
+        public void GetUInt8_Exists_Returns()
+        {
+            var commandSet = new CommandSet();
+            var child = new UInt8Input("b", "b", "b");
+            commandSet.Add(child);
+
+            int index = 0;
+            child.ProcessInput(["b", "5"], ref index);
+
+            byte actual = commandSet.GetUInt8("b");
+            Assert.Equal(5, actual);
+        }
+
+        [Fact]
+        public void GetUInt8_NestedExists_Returns()
+        {
+            var commandSet = new CommandSet();
+            var child = new MockUserInput("b", "b", "b");
+            commandSet.Add(child);
+            var subChild = new UInt8Input("c", "c", "c");
+            child.Add(subChild);
+
+            int index = 0;
+            subChild.ProcessInput(["c", "5"], ref index);
+
+            byte actual = commandSet.GetUInt8("c");
+            Assert.Equal(5, actual);
+        }
+
+        #endregion
+
+        #region GetUInt16
+
+        [Fact]
+        public void GetUInt16_InvalidKey_DefaultValue()
+        {
+            var commandSet = new CommandSet();
+            var child = new UInt16Input("b", "b", "b");
+            commandSet.Add(child);
+
+            ushort actual = commandSet.GetUInt16("c");
+            Assert.Equal(ushort.MinValue, actual);
+        }
+
+        [Fact]
+        public void GetUInt16_Exists_WrongType_Throws()
+        {
+            var commandSet = new CommandSet();
+            var child = new MockUserInput("b", "b", "b");
+            commandSet.Add(child);
+
+            Assert.Throws<ArgumentException>(() => _ = commandSet.GetUInt16("b"));
+        }
+
+        [Fact]
+        public void GetUInt16_Exists_Returns()
+        {
+            var commandSet = new CommandSet();
+            var child = new UInt16Input("b", "b", "b");
+            commandSet.Add(child);
+
+            int index = 0;
+            child.ProcessInput(["b", "5"], ref index);
+
+            ushort actual = commandSet.GetUInt16("b");
+            Assert.Equal(5, actual);
+        }
+
+        [Fact]
+        public void GetUInt16_NestedExists_Returns()
+        {
+            var commandSet = new CommandSet();
+            var child = new MockUserInput("b", "b", "b");
+            commandSet.Add(child);
+            var subChild = new UInt16Input("c", "c", "c");
+            child.Add(subChild);
+
+            int index = 0;
+            subChild.ProcessInput(["c", "5"], ref index);
+
+            ushort actual = commandSet.GetUInt16("c");
+            Assert.Equal(5, actual);
+        }
+
+        #endregion
+
+        #region GetUInt32
+
+        [Fact]
+        public void GetUInt32_InvalidKey_DefaultValue()
+        {
+            var commandSet = new CommandSet();
+            var child = new UInt32Input("b", "b", "b");
+            commandSet.Add(child);
+
+            uint actual = commandSet.GetUInt32("c");
+            Assert.Equal(uint.MinValue, actual);
+        }
+
+        [Fact]
+        public void GetUInt32_Exists_WrongType_Throws()
+        {
+            var commandSet = new CommandSet();
+            var child = new MockUserInput("b", "b", "b");
+            commandSet.Add(child);
+
+            Assert.Throws<ArgumentException>(() => _ = commandSet.GetUInt32("b"));
+        }
+
+        [Fact]
+        public void GetUInt32_Exists_Returns()
+        {
+            var commandSet = new CommandSet();
+            var child = new UInt32Input("b", "b", "b");
+            commandSet.Add(child);
+
+            int index = 0;
+            child.ProcessInput(["b", "5"], ref index);
+
+            uint actual = commandSet.GetUInt32("b");
+            Assert.Equal(5u, actual);
+        }
+
+        [Fact]
+        public void GetUInt32_NestedExists_Returns()
+        {
+            var commandSet = new CommandSet();
+            var child = new MockUserInput("b", "b", "b");
+            commandSet.Add(child);
+            var subChild = new UInt32Input("c", "c", "c");
+            child.Add(subChild);
+
+            int index = 0;
+            subChild.ProcessInput(["c", "5"], ref index);
+
+            uint actual = commandSet.GetUInt32("c");
+            Assert.Equal(5u, actual);
+        }
+
+        #endregion
+
+        #region GetUInt64
+
+        [Fact]
+        public void GetUInt64_InvalidKey_DefaultValue()
+        {
+            var commandSet = new CommandSet();
+            var child = new UInt64Input("b", "b", "b");
+            commandSet.Add(child);
+
+            ulong actual = commandSet.GetUInt64("c");
+            Assert.Equal(ulong.MinValue, actual);
+        }
+
+        [Fact]
+        public void GetUInt64_Exists_WrongType_Throws()
+        {
+            var commandSet = new CommandSet();
+            var child = new MockUserInput("b", "b", "b");
+            commandSet.Add(child);
+
+            Assert.Throws<ArgumentException>(() => _ = commandSet.GetUInt64("b"));
+        }
+
+        [Fact]
+        public void GetUInt64_Exists_Returns()
+        {
+            var commandSet = new CommandSet();
+            var child = new UInt64Input("b", "b", "b");
+            commandSet.Add(child);
+
+            int index = 0;
+            child.ProcessInput(["b", "5"], ref index);
+
+            ulong actual = commandSet.GetUInt64("b");
+            Assert.Equal(5u, actual);
+        }
+
+        [Fact]
+        public void GetUInt64_NestedExists_Returns()
+        {
+            var commandSet = new CommandSet();
+            var child = new MockUserInput("b", "b", "b");
+            commandSet.Add(child);
+            var subChild = new UInt64Input("c", "c", "c");
+            child.Add(subChild);
+
+            int index = 0;
+            subChild.ProcessInput(["c", "5"], ref index);
+
+            ulong actual = commandSet.GetUInt64("c");
+            Assert.Equal(5u, actual);
+        }
+
+        #endregion
+
+        #region ProcessArgs
+
+        [Fact]
+        public void ProcessArgs_EmptyArgs_Success()
+        {
+            CommandSet commandSet = new CommandSet();
+
+            string[] args = [];
+
+            bool actual = commandSet.ProcessArgs(args);
+            Assert.True(actual);
+        }
+
+        [Fact]
+        public void ProcessArgs_ValidArgs_Success()
+        {
+            CommandSet commandSet = new CommandSet();
+            Feature feature = new MockFeature("a", "a", "a");
+            feature.Add(new FlagInput("b", "b", "b"));
+            feature.Add(new FlagInput("c", "c", "c"));
+            commandSet.Add(feature);
+
+            string[] args = ["a", "b", "c"];
+
+            bool actual = commandSet.ProcessArgs(args);
+            Assert.True(actual);
+            Assert.Empty(feature.Inputs);
+        }
+
+        [Fact]
+        public void ProcessArgs_InvalidArg_AddedAsGeneric()
+        {
+            CommandSet commandSet = new CommandSet();
+            Feature feature = new MockFeature("a", "a", "a");
+            feature.Add(new FlagInput("b", "b", "b"));
+            feature.Add(new FlagInput("d", "d", "d"));
+            commandSet.Add(feature);
+
+            string[] args = ["a", "b", "c"];
+
+            bool actual = commandSet.ProcessArgs(args);
+            Assert.True(actual);
+            string input = Assert.Single(feature.Inputs);
+            Assert.Equal("c", input);
+        }
+
+        [Fact]
+        public void ProcessArgs_NestedArgs_Success()
+        {
+            CommandSet commandSet = new CommandSet();
+            Feature feature = new MockFeature("a", "a", "a");
+            var sub = new FlagInput("b", "b", "b");
+            sub.Add(new FlagInput("c", "c", "c"));
+            feature.Add(sub);
+            commandSet.Add(feature);
+
+            string[] args = ["a", "b", "c"];
+
+            bool actual = commandSet.ProcessArgs(args);
+            Assert.True(actual);
+            Assert.Empty(feature.Inputs);
+        }
+
+        #endregion
+
+        /// <summary>
+        /// Mock Feature implementation for testing
+        /// </summary>
+        private class MockFeature : Feature
+        {
+            public MockFeature(string name, string flag, string description, string? detailed = null)
+                : base(name, flag, description, detailed)
+            {
+            }
+
+            public MockFeature(string name, string[] flags, string description, string? detailed = null)
+                : base(name, flags, description, detailed)
+            {
+            }
+
+            /// <inheritdoc/>
+            public override bool Execute() => true;
+
+            /// <inheritdoc/>
+            public override bool VerifyInputs() => true;
+        }
+
+        /// <summary>
+        /// Mock UserInput implementation for testing
+        /// </summary>
+        private class MockUserInput : UserInput<object?>
+        {
+            public MockUserInput(string name, string flag, string description, string? detailed = null)
+                : base(name, flag, description, detailed)
+            {
+            }
+
+            public MockUserInput(string name, string[] flags, string description, string? detailed = null)
+                : base(name, flags, description, detailed)
+            {
+            }
+
+            /// <inheritdoc/>
+            public override bool ProcessInput(string[] args, ref int index) => true;
+
+            /// <inheritdoc/>
+            protected override string FormatFlags() => string.Empty;
+        }
     }
 }

SabreTools.CommandLine.Test/FeatureTests.cs

@@ -95,7 +95,7 @@ namespace SabreTools.CommandLine.Test
         [InlineData(0, -1, "a a")]
         [InlineData(-1, 0, "a a")]
         [InlineData(0, 0, "a a")]
-        [InlineData(2, 30, "  a                              a")]
+        [InlineData(2, 30, "  a                           a")]
         [InlineData(4, 0, "    a a")]
         public void FormatStandardTest(int pre, int midpoint, string expected)
         {

SabreTools.CommandLine.Test/Inputs/UserInputTests.cs

@@ -114,6 +114,65 @@ namespace SabreTools.CommandLine.Test.Inputs
 
         #endregion
 
+        #region GetFeature
+
+        [Fact]
+        public void GetFeature_InvalidKey_Null()
+        {
+            UserInput userInput = new MockUserInput("a", "a", "a");
+            var child = new MockFeature("b", "b", "b");
+            userInput.Add(child);
+
+            Feature? actual = userInput.GetFeature("c");
+            Assert.Null(actual);
+        }
+
+        [Fact]
+        public void GetFeature_Exists_WrongType_Throws()
+        {
+            UserInput userInput = new MockUserInput("a", "a", "a");
+            var child = new MockUserInput("b", "b", "b");
+            userInput.Add(child);
+
+            Assert.Throws<ArgumentException>(() => _ = userInput.GetFeature("b"));
+        }
+
+        [Fact]
+        public void GetFeature_Exists_Returns()
+        {
+            UserInput userInput = new MockUserInput("a", "a", "a");
+            var child = new MockFeature("b", "b", "b");
+            userInput.Add(child);
+
+            int index = 0;
+            child.ProcessInput(["b"], ref index);
+
+            Feature? actual = userInput.GetFeature("b");
+            Assert.NotNull(actual);
+            Assert.Equal("b", actual.Name);
+            Assert.True(actual.Value);
+        }
+
+        [Fact]
+        public void GetFeature_NestedExists_Returns()
+        {
+            UserInput userInput = new MockUserInput("a", "a", "a");
+            var child = new MockUserInput("b", "b", "b");
+            userInput.Add(child);
+            var subChild = new MockFeature("c", "c", "c");
+            child.Add(subChild);
+
+            int index = 0;
+            subChild.ProcessInput(["c"], ref index);
+
+            Feature? actual = userInput.GetFeature("c");
+            Assert.NotNull(actual);
+            Assert.Equal("c", actual.Name);
+            Assert.True(actual.Value);
+        }
+
+        #endregion
+
         #region GetInt8
 
         [Fact]
@@ -666,6 +725,28 @@ namespace SabreTools.CommandLine.Test.Inputs
 
         #endregion
 
+        /// <summary>
+        /// Mock Feature implementation for testing
+        /// </summary>
+        private class MockFeature : Feature
+        {
+            public MockFeature(string name, string flag, string description, string? detailed = null)
+                : base(name, flag, description, detailed)
+            {
+            }
+
+            public MockFeature(string name, string[] flags, string description, string? detailed = null)
+                : base(name, flags, description, detailed)
+            {
+            }
+
+            /// <inheritdoc/>
+            public override bool Execute() => true;
+
+            /// <inheritdoc/>
+            public override bool VerifyInputs() => true;
+        }
+
         /// <summary>
         /// Mock UserInput implementation for testing
         /// </summary>

SabreTools.CommandLine/CommandSet.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using SabreTools.CommandLine.Features;
 using SabreTools.CommandLine.Inputs;
 
 namespace SabreTools.CommandLine
@@ -46,6 +47,15 @@ namespace SabreTools.CommandLine
         /// </summary>
         public CommandSet() { }
 
+        /// <summary>
+        /// Create a new CommandSet with a printable header
+        /// </summary>
+        /// <param name="header">Custom commandline header to be printed when outputting help</param>
+        public CommandSet(string header)
+        {
+            _header.Add(header);
+        }
+
         /// <summary>
         /// Create a new CommandSet with a printable header
         /// </summary>
@@ -55,6 +65,17 @@ namespace SabreTools.CommandLine
             _header.AddRange(header);
         }
 
+        /// <summary>
+        /// Create a new CommandSet with a printable header
+        /// </summary>
+        /// <param name="header">Custom commandline header to be printed when outputting help</param>
+        /// <param name="footer">Custom commandline footer to be printed when outputting help</param>
+        public CommandSet(string header, string footer)
+        {
+            _header.Add(header);
+            _footer.Add(footer);
+        }
+
         /// <summary>
         /// Create a new CommandSet with a printable header
         /// </summary>
@@ -101,6 +122,542 @@ namespace SabreTools.CommandLine
 
         #endregion
 
+        #region Children
+
+        /// <summary>
+        /// Get a boolean value from a named input
+        /// </summary>
+        /// <param name="key">Input name to retrieve, if possible</param>
+        /// <param name="defaultValue">Optional default value if not found</param>
+        /// <returns>The value if found, the default value otherwise</returns>
+        public bool GetBoolean(string key, bool defaultValue = false)
+        {
+            if (TryGetBoolean(key, out bool value, defaultValue))
+                return value;
+
+            return defaultValue;
+        }
+
+        /// <summary>
+        /// Get a Feature value from a named input
+        /// </summary>
+        /// <param name="key">Input name to retrieve, if possible</param>
+        /// <returns>The value if found, null otherwise</returns>
+        public Feature? GetFeature(string key)
+        {
+            if (TryGetFeature(key, out Feature? value))
+                return value;
+
+            return null;
+        }
+
+        /// <summary>
+        /// Get an Int8 value from a named input
+        /// </summary>
+        /// <param name="key">Input name to retrieve, if possible</param>
+        /// <param name="defaultValue">Optional default value if not found</param>
+        /// <returns>The value if found, the default value otherwise</returns>
+        public sbyte GetInt8(string key, sbyte defaultValue = sbyte.MinValue)
+        {
+            if (TryGetInt8(key, out sbyte value, defaultValue))
+                return value;
+
+            return defaultValue;
+        }
+
+        /// <summary>
+        /// Get an Int16 value from a named input
+        /// </summary>
+        /// <param name="key">Input name to retrieve, if possible</param>
+        /// <param name="defaultValue">Optional default value if not found</param>
+        /// <returns>The value if found, the default value otherwise</returns>
+        public short GetInt16(string key, short defaultValue = short.MinValue)
+        {
+            if (TryGetInt16(key, out short value, defaultValue))
+                return value;
+
+            return defaultValue;
+        }
+
+        /// <summary>
+        /// Get an Int32 value from a named input
+        /// </summary>
+        /// <param name="key">Input name to retrieve, if possible</param>
+        /// <param name="defaultValue">Optional default value if not found</param>
+        /// <returns>The value if found, the default value otherwise</returns>
+        public int GetInt32(string key, int defaultValue = int.MinValue)
+        {
+            if (TryGetInt32(key, out int value, defaultValue))
+                return value;
+
+            return defaultValue;
+        }
+
+        /// <summary>
+        /// Get an Int64 value from a named input
+        /// </summary>
+        /// <param name="key">Input name to retrieve, if possible</param>
+        /// <param name="defaultValue">Optional default value if not found</param>
+        /// <returns>The value if found, the default value otherwise</returns>
+        public long GetInt64(string key, long defaultValue = long.MinValue)
+        {
+            if (TryGetInt64(key, out long value, defaultValue))
+                return value;
+
+            return defaultValue;
+        }
+
+        /// <summary>
+        /// Get a string value from a named input
+        /// </summary>
+        /// <param name="key">Input name to retrieve, if possible</param>
+        /// <param name="defaultValue">Optional default value if not found</param>
+        /// <returns>The value if found, the default value otherwise</returns>
+        public string? GetString(string key, string? defaultValue = null)
+        {
+            if (TryGetString(key, out string? value, defaultValue))
+                return value;
+
+            return defaultValue;
+        }
+
+        /// <summary>
+        /// Get a string list value from a named input
+        /// </summary>
+        /// <param name="key">Input name to retrieve, if possible</param>
+        /// <param name="defaultValue">Optional default value if not found</param>
+        /// <returns>The value if found, the default value otherwise</returns>
+        public List<string> GetStringList(string key)
+        {
+            if (TryGetStringList(key, out var value))
+                return value;
+
+            return [];
+        }
+
+        /// <summary>
+        /// Get a UInt8 value from a named input
+        /// </summary>
+        /// <param name="key">Input name to retrieve, if possible</param>
+        /// <param name="defaultValue">Optional default value if not found</param>
+        /// <returns>The value if found, the default value otherwise</returns>
+        public byte GetUInt8(string key, byte defaultValue = byte.MinValue)
+        {
+            if (TryGetUInt8(key, out byte value, defaultValue))
+                return value;
+
+            return defaultValue;
+        }
+
+        /// <summary>
+        /// Get a UInt16 value from a named input
+        /// </summary>
+        /// <param name="key">Input name to retrieve, if possible</param>
+        /// <param name="defaultValue">Optional default value if not found</param>
+        /// <returns>The value if found, the default value otherwise</returns>
+        public ushort GetUInt16(string key, ushort defaultValue = ushort.MinValue)
+        {
+            if (TryGetUInt16(key, out ushort value, defaultValue))
+                return value;
+
+            return defaultValue;
+        }
+
+        /// <summary>
+        /// Get a UInt32 value from a named input
+        /// </summary>
+        /// <param name="key">Input name to retrieve, if possible</param>
+        /// <param name="defaultValue">Optional default value if not found</param>
+        /// <returns>The value if found, the default value otherwise</returns>
+        public uint GetUInt32(string key, uint defaultValue = uint.MinValue)
+        {
+            if (TryGetUInt32(key, out uint value, defaultValue))
+                return value;
+
+            return defaultValue;
+        }
+
+        /// <summary>
+        /// Get a UInt64 value from a named input
+        /// </summary>
+        /// <param name="key">Input name to retrieve, if possible</param>
+        /// <param name="defaultValue">Optional default value if not found</param>
+        /// <returns>The value if found, the default value otherwise</returns>
+        public ulong GetUInt64(string key, ulong defaultValue = ulong.MinValue)
+        {
+            if (TryGetUInt64(key, out ulong value, defaultValue))
+                return value;
+
+            return defaultValue;
+        }
+
+        /// <summary>
+        /// Get a boolean value from a named input
+        /// </summary>
+        /// <param name="key">Input name to retrieve, if possible</param>
+        /// <param name="value">Value that was found, default value otherwise</param>
+        /// <param name="defaultValue">Optional default value if not found</param>
+        /// <returns>True if the value was found, false otherwise</returns>
+        public bool TryGetBoolean(string key, out bool value, bool defaultValue = false)
+        {
+            // Try to check immediate children
+            if (_inputs.TryGetValue(key, out var input))
+            {
+                if (input is BooleanInput b)
+                {
+                    value = b.Value ?? defaultValue;
+                    return true;
+                }
+                else if (input is FlagInput f)
+                {
+                    value = f.Value;
+                    return true;
+                }
+
+                throw new ArgumentException("Input is not a bool");
+            }
+
+            // Check all children recursively
+            foreach (var child in _inputs.Values)
+            {
+                if (child.TryGetBoolean(key, out value, defaultValue))
+                    return true;
+            }
+
+            value = defaultValue;
+            return false;
+        }
+
+        /// <summary>
+        /// Get a Feature value from a named input
+        /// </summary>
+        /// <param name="key">Input name to retrieve, if possible</param>
+        /// <param name="value">Value that was found, default value otherwise</param>
+        /// <returns>True if the value was found, false otherwise</returns>
+        public bool TryGetFeature(string key, out Feature? value)
+        {
+            // Try to check immediate children
+            if (_inputs.TryGetValue(key, out var input))
+            {
+                if (input is not Feature i)
+                    throw new ArgumentException("Input is not a Feature");
+
+                value = i;
+                return true;
+            }
+
+            // Check all children recursively
+            foreach (var child in _inputs.Values)
+            {
+                if (child.TryGetFeature(key, out value))
+                    return true;
+            }
+
+            value = null;
+            return false;
+        }
+
+        /// <summary>
+        /// Get an Int8 value from a named input
+        /// </summary>
+        /// <param name="key">Input name to retrieve, if possible</param>
+        /// <param name="value">Value that was found, default value otherwise</param>
+        /// <param name="defaultValue">Optional default value if not found</param>
+        /// <returns>True if the value was found, false otherwise</returns>
+        public bool TryGetInt8(string key, out sbyte value, sbyte defaultValue = sbyte.MinValue)
+        {
+            // Try to check immediate children
+            if (_inputs.TryGetValue(key, out var input))
+            {
+                if (input is not Int8Input i)
+                    throw new ArgumentException("Input is not an sbyte");
+
+                value = i.Value ?? defaultValue;
+                return true;
+            }
+
+            // Check all children recursively
+            foreach (var child in _inputs.Values)
+            {
+                if (child.TryGetInt8(key, out value, defaultValue))
+                    return true;
+            }
+
+            value = defaultValue;
+            return false;
+        }
+
+        /// <summary>
+        /// Get an Int16 value from a named input
+        /// </summary>
+        /// <param name="key">Input name to retrieve, if possible</param>
+        /// <param name="value">Value that was found, default value otherwise</param>
+        /// <param name="defaultValue">Optional default value if not found</param>
+        /// <returns>True if the value was found, false otherwise</returns>
+        public bool TryGetInt16(string key, out short value, short defaultValue = short.MinValue)
+        {
+            // Try to check immediate children
+            if (_inputs.TryGetValue(key, out var input))
+            {
+                if (input is not Int16Input i)
+                    throw new ArgumentException("Input is not a short");
+
+                value = i.Value ?? defaultValue;
+                return true;
+            }
+
+            // Check all children recursively
+            foreach (var child in _inputs.Values)
+            {
+                if (child.TryGetInt16(key, out value, defaultValue))
+                    return true;
+            }
+
+            value = defaultValue;
+            return false;
+        }
+
+        /// <summary>
+        /// Get an Int32 value from a named input
+        /// </summary>
+        /// <param name="key">Input name to retrieve, if possible</param>
+        /// <param name="value">Value that was found, default value otherwise</param>
+        /// <param name="defaultValue">Optional default value if not found</param>
+        /// <returns>True if the value was found, false otherwise</returns>
+        public bool TryGetInt32(string key, out int value, int defaultValue = int.MinValue)
+        {
+            // Try to check immediate children
+            if (_inputs.TryGetValue(key, out var input))
+            {
+                if (input is not Int32Input i)
+                    throw new ArgumentException("Input is not an int");
+
+                value = i.Value ?? defaultValue;
+                return true;
+            }
+
+            // Check all children recursively
+            foreach (var child in _inputs.Values)
+            {
+                if (child.TryGetInt32(key, out value, defaultValue))
+                    return true;
+            }
+
+            value = defaultValue;
+            return false;
+        }
+
+        /// <summary>
+        /// Get an Int64 value from a named input
+        /// </summary>
+        /// <param name="key">Input name to retrieve, if possible</param>
+        /// <param name="value">Value that was found, default value otherwise</param>
+        /// <param name="defaultValue">Optional default value if not found</param>
+        /// <returns>True if the value was found, false otherwise</returns>
+        public bool TryGetInt64(string key, out long value, long defaultValue = long.MinValue)
+        {
+            // Try to check immediate children
+            if (_inputs.TryGetValue(key, out var input))
+            {
+                if (input is not Int64Input l)
+                    throw new ArgumentException("Input is not a long");
+
+                value = l.Value ?? defaultValue;
+                return true;
+            }
+
+            // Check all children recursively
+            foreach (var child in _inputs.Values)
+            {
+                if (child.TryGetInt64(key, out value, defaultValue))
+                    return true;
+            }
+
+            value = defaultValue;
+            return false;
+        }
+
+        /// <summary>
+        /// Get a string value from a named input
+        /// </summary>
+        /// <param name="key">Input name to retrieve, if possible</param>
+        /// <param name="value">Value that was found, default value otherwise</param>
+        /// <param name="defaultValue">Optional default value if not found</param>
+        /// <returns>True if the value was found, false otherwise</returns>
+        public bool TryGetString(string key, out string? value, string? defaultValue = null)
+        {
+            // Try to check immediate children
+            if (_inputs.TryGetValue(key, out var input))
+            {
+                if (input is not StringInput s)
+                    throw new ArgumentException("Input is not a string");
+
+                value = s.Value ?? defaultValue;
+                return true;
+            }
+
+            // Check all children recursively
+            foreach (var child in _inputs.Values)
+            {
+                if (child.TryGetString(key, out value, defaultValue))
+                    return true;
+            }
+
+            value = defaultValue;
+            return false;
+        }
+
+        /// <summary>
+        /// Get a string list value from a named input
+        /// </summary>
+        /// <param name="key">Input name to retrieve, if possible</param>
+        /// <param name="value">Value that was found, default value otherwise</param>
+        /// <returns>True if the value was found, false otherwise</returns>
+        public bool TryGetStringList(string key, out List<string> value)
+        {
+            // Try to check immediate children
+            if (_inputs.TryGetValue(key, out var input))
+            {
+                if (input is not StringListInput l)
+                    throw new ArgumentException("Input is not a list");
+
+                value = l.Value ?? [];
+                return true;
+            }
+
+            // Check all children recursively
+            foreach (var child in _inputs.Values)
+            {
+                if (child.TryGetStringList(key, out value))
+                    return true;
+            }
+
+            value = [];
+            return false;
+        }
+
+        /// <summary>
+        /// Get a UInt8 value from a named input
+        /// </summary>
+        /// <param name="key">Input name to retrieve, if possible</param>
+        /// <param name="value">Value that was found, default value otherwise</param>
+        /// <param name="defaultValue">Optional default value if not found</param>
+        /// <returns>True if the value was found, false otherwise</returns>
+        public bool TryGetUInt8(string key, out byte value, byte defaultValue = byte.MinValue)
+        {
+            // Try to check immediate children
+            if (_inputs.TryGetValue(key, out var input))
+            {
+                if (input is not UInt8Input i)
+                    throw new ArgumentException("Input is not an byte");
+
+                value = i.Value ?? defaultValue;
+                return true;
+            }
+
+            // Check all children recursively
+            foreach (var child in _inputs.Values)
+            {
+                if (child.TryGetUInt8(key, out value, defaultValue))
+                    return true;
+            }
+
+            value = defaultValue;
+            return false;
+        }
+
+        /// <summary>
+        /// Get a UInt16 value from a named input
+        /// </summary>
+        /// <param name="key">Input name to retrieve, if possible</param>
+        /// <param name="value">Value that was found, default value otherwise</param>
+        /// <param name="defaultValue">Optional default value if not found</param>
+        /// <returns>True if the value was found, false otherwise</returns>
+        public bool TryGetUInt16(string key, out ushort value, ushort defaultValue = ushort.MinValue)
+        {
+            // Try to check immediate children
+            if (_inputs.TryGetValue(key, out var input))
+            {
+                if (input is not UInt16Input i)
+                    throw new ArgumentException("Input is not a ushort");
+
+                value = i.Value ?? defaultValue;
+                return true;
+            }
+
+            // Check all children recursively
+            foreach (var child in _inputs.Values)
+            {
+                if (child.TryGetUInt16(key, out value, defaultValue))
+                    return true;
+            }
+
+            value = defaultValue;
+            return false;
+        }
+
+        /// <summary>
+        /// Get a UInt32 value from a named input
+        /// </summary>
+        /// <param name="key">Input name to retrieve, if possible</param>
+        /// <param name="value">Value that was found, default value otherwise</param>
+        /// <param name="defaultValue">Optional default value if not found</param>
+        /// <returns>True if the value was found, false otherwise</returns>
+        public bool TryGetUInt32(string key, out uint value, uint defaultValue = uint.MinValue)
+        {
+            // Try to check immediate children
+            if (_inputs.TryGetValue(key, out var input))
+            {
+                if (input is not UInt32Input i)
+                    throw new ArgumentException("Input is not an uint");
+
+                value = i.Value ?? defaultValue;
+                return true;
+            }
+
+            // Check all children recursively
+            foreach (var child in _inputs.Values)
+            {
+                if (child.TryGetUInt32(key, out value, defaultValue))
+                    return true;
+            }
+
+            value = defaultValue;
+            return false;
+        }
+
+        /// <summary>
+        /// Get a UInt64 value from a named input
+        /// </summary>
+        /// <param name="key">Input name to retrieve, if possible</param>
+        /// <param name="value">Value that was found, default value otherwise</param>
+        /// <param name="defaultValue">Optional default value if not found</param>
+        /// <returns>True if the value was found, false otherwise</returns>
+        public bool TryGetUInt64(string key, out ulong value, ulong defaultValue = ulong.MinValue)
+        {
+            // Try to check immediate children
+            if (_inputs.TryGetValue(key, out var input))
+            {
+                if (input is not UInt64Input l)
+                    throw new ArgumentException("Input is not a ulong");
+
+                value = l.Value ?? defaultValue;
+                return true;
+            }
+
+            // Check all children recursively
+            foreach (var child in _inputs.Values)
+            {
+                if (child.TryGetUInt64(key, out value, defaultValue))
+                    return true;
+            }
+
+            value = defaultValue;
+            return false;
+        }
+
+        #endregion
+
         #region Inputs
 
         /// <summary>
@@ -163,7 +720,8 @@ namespace SabreTools.CommandLine
         /// <summary>
         /// Output top-level features only
         /// </summary>
-        public void OutputGenericHelp()
+        /// <param name="detailed">True if the detailed descriptions should be formatted and output, false otherwise</param>
+        public void OutputGenericHelp(bool detailed = false)
         {
             // Start building the output list
             List<string> output = [];
@@ -176,7 +734,7 @@ namespace SabreTools.CommandLine
             output.Add("Available options:");
             foreach (var input in _inputs.Values)
             {
-                var outputs = input.Format(pre: 2, midpoint: 30);
+                var outputs = input.Format(pre: 2, midpoint: 30, detailed);
                 if (outputs != null)
                     output.AddRange(outputs);
             }
@@ -192,7 +750,8 @@ namespace SabreTools.CommandLine
         /// <summary>
         /// Output all features recursively
         /// </summary>
-        public void OutputAllHelp()
+        /// <param name="detailed">True if the detailed descriptions should be formatted and output, false otherwise</param>
+        public void OutputAllHelp(bool detailed = false)
         {
             // Start building the output list
             List<string> output = [];
@@ -205,7 +764,7 @@ namespace SabreTools.CommandLine
             output.Add("Available options:");
             foreach (var input in _inputs.Values)
             {
-                var outputs = input.FormatRecursive(pre: 2, midpoint: 30, detailed: true);
+                var outputs = input.FormatRecursive(pre: 2, midpoint: 30, detailed);
                 if (outputs != null)
                     output.AddRange(outputs);
             }
@@ -313,5 +872,71 @@ namespace SabreTools.CommandLine
         }
 
         #endregion
+
+        #region Processing
+
+        /// <summary>
+        /// Process args list with default handling
+        /// </summary>
+        /// <param name="args">Set of arguments to process</param>
+        /// <returns>True if all arguments were processed correctly, false otherwise</returns>
+        /// <remarks>
+        /// This default processing implementation assumes a few key points:
+        /// - Top-level items are all <see cref="Feature"/>
+        /// - There is only top-level item allowed at a time
+        /// - The first argument is always the <see cref="Feature"/> flag
+        /// </remarks>
+        public bool ProcessArgs(string[] args)
+        {
+            // If there's no arguments, show help
+            if (args.Length == 0)
+            {
+                OutputGenericHelp();
+                return true;
+            }
+
+            // Get the first argument as a feature flag
+            string featureName = args[0];
+
+            // Get the associated feature
+            var topLevel = GetTopLevel(featureName);
+            if (topLevel == null || topLevel is not Feature feature)
+            {
+                Console.WriteLine($"'{featureName}' is not valid feature flag");
+                OutputFeatureHelp(featureName);
+                return false;
+            }
+
+            // Handle default help functionality
+            if (topLevel is Help helpFeature)
+            {
+                helpFeature.ProcessArgs(args, 0, this);
+                return true;
+            }
+            else if (topLevel is HelpExtended helpExtFeature)
+            {
+                helpExtFeature.ProcessArgs(args, 0, this);
+                return true;
+            }
+
+            // Now verify that all other flags are valid
+            if (!feature.ProcessArgs(args, 1))
+            {
+                OutputFeatureHelp(topLevel.Name);
+                return false;
+            }
+
+            // If inputs are required
+            if (feature.RequiresInputs && !feature.VerifyInputs())
+            {
+                OutputFeatureHelp(topLevel.Name);
+                return false;
+            }
+
+            // Now execute the current feature
+            return feature.Execute();
+        }
+
+        #endregion
     }
 }

SabreTools.CommandLine/Inputs/UserInput.cs

@@ -135,6 +135,19 @@ namespace SabreTools.CommandLine.Inputs
             return defaultValue;
         }
 
+        /// <summary>
+        /// Get a Feature value from a named input
+        /// </summary>
+        /// <param name="key">Input name to retrieve, if possible</param>
+        /// <returns>The value if found, null otherwise</returns>
+        public Feature? GetFeature(string key)
+        {
+            if (TryGetFeature(key, out Feature? value))
+                return value;
+
+            return null;
+        }
+
         /// <summary>
         /// Get an Int8 value from a named input
         /// </summary>
@@ -298,7 +311,7 @@ namespace SabreTools.CommandLine.Inputs
                     return true;
                 }
 
-                throw new ArgumentException("Feature is not a bool");
+                throw new ArgumentException("Input is not a bool");
             }
 
             // Check all children recursively
@@ -312,6 +325,35 @@ namespace SabreTools.CommandLine.Inputs
             return false;
         }
 
+        /// <summary>
+        /// Get a Feature value from a named input
+        /// </summary>
+        /// <param name="key">Input name to retrieve, if possible</param>
+        /// <param name="value">Value that was found, default value otherwise</param>
+        /// <returns>True if the value was found, false otherwise</returns>
+        public bool TryGetFeature(string key, out Feature? value)
+        {
+            // Try to check immediate children
+            if (Children.TryGetValue(key, out var input))
+            {
+                if (input is not Feature i)
+                    throw new ArgumentException("Input is not a Feature");
+
+                value = i;
+                return true;
+            }
+
+            // Check all children recursively
+            foreach (var child in Children.Values)
+            {
+                if (child.TryGetFeature(key, out value))
+                    return true;
+            }
+
+            value = null;
+            return false;
+        }
+
         /// <summary>
         /// Get an Int8 value from a named input
         /// </summary>
@@ -325,7 +367,7 @@ namespace SabreTools.CommandLine.Inputs
             if (Children.TryGetValue(key, out var input))
             {
                 if (input is not Int8Input i)
-                    throw new ArgumentException("Feature is not an sbyte");
+                    throw new ArgumentException("Input is not an sbyte");
 
                 value = i.Value ?? defaultValue;
                 return true;
@@ -355,7 +397,7 @@ namespace SabreTools.CommandLine.Inputs
             if (Children.TryGetValue(key, out var input))
             {
                 if (input is not Int16Input i)
-                    throw new ArgumentException("Feature is not a short");
+                    throw new ArgumentException("Input is not a short");
 
                 value = i.Value ?? defaultValue;
                 return true;
@@ -385,7 +427,7 @@ namespace SabreTools.CommandLine.Inputs
             if (Children.TryGetValue(key, out var input))
             {
                 if (input is not Int32Input i)
-                    throw new ArgumentException("Feature is not an int");
+                    throw new ArgumentException("Input is not an int");
 
                 value = i.Value ?? defaultValue;
                 return true;
@@ -415,7 +457,7 @@ namespace SabreTools.CommandLine.Inputs
             if (Children.TryGetValue(key, out var input))
             {
                 if (input is not Int64Input l)
-                    throw new ArgumentException("Feature is not a long");
+                    throw new ArgumentException("Input is not a long");
 
                 value = l.Value ?? defaultValue;
                 return true;
@@ -445,7 +487,7 @@ namespace SabreTools.CommandLine.Inputs
             if (Children.TryGetValue(key, out var input))
             {
                 if (input is not StringInput s)
-                    throw new ArgumentException("Feature is not a string");
+                    throw new ArgumentException("Input is not a string");
 
                 value = s.Value ?? defaultValue;
                 return true;
@@ -474,7 +516,7 @@ namespace SabreTools.CommandLine.Inputs
             if (Children.TryGetValue(key, out var input))
             {
                 if (input is not StringListInput l)
-                    throw new ArgumentException("Feature is not a list");
+                    throw new ArgumentException("Input is not a list");
 
                 value = l.Value ?? [];
                 return true;
@@ -504,7 +546,7 @@ namespace SabreTools.CommandLine.Inputs
             if (Children.TryGetValue(key, out var input))
             {
                 if (input is not UInt8Input i)
-                    throw new ArgumentException("Feature is not an byte");
+                    throw new ArgumentException("Input is not an byte");
 
                 value = i.Value ?? defaultValue;
                 return true;
@@ -534,7 +576,7 @@ namespace SabreTools.CommandLine.Inputs
             if (Children.TryGetValue(key, out var input))
             {
                 if (input is not UInt16Input i)
-                    throw new ArgumentException("Feature is not a ushort");
+                    throw new ArgumentException("Input is not a ushort");
 
                 value = i.Value ?? defaultValue;
                 return true;
@@ -564,7 +606,7 @@ namespace SabreTools.CommandLine.Inputs
             if (Children.TryGetValue(key, out var input))
             {
                 if (input is not UInt32Input i)
-                    throw new ArgumentException("Feature is not an uint");
+                    throw new ArgumentException("Input is not an uint");
 
                 value = i.Value ?? defaultValue;
                 return true;
@@ -594,7 +636,7 @@ namespace SabreTools.CommandLine.Inputs
             if (Children.TryGetValue(key, out var input))
             {
                 if (input is not UInt64Input l)
-                    throw new ArgumentException("Feature is not a ulong");
+                    throw new ArgumentException("Input is not a ulong");
 
                 value = l.Value ?? defaultValue;
                 return true;
@@ -699,13 +741,14 @@ namespace SabreTools.CommandLine.Inputs
         {
             var output = new StringBuilder();
 
+            output.Append(CreatePadding(pre));
+            output.Append(FormatFlags());
+
             // Determine the midpoint padding size
             int midpointPadding = midpoint > 0 && output.Length < midpoint
                 ? midpoint - output.Length
                 : 1;
 
-            output.Append(CreatePadding(pre));
-            output.Append(FormatFlags());
             output.Append(CreatePadding(midpointPadding));
             output.Append(Description);
 

SabreTools.CommandLine/SabreTools.CommandLine.csproj

@@ -11,7 +11,7 @@
         <SuppressTfmSupportBuildWarnings>true</SuppressTfmSupportBuildWarnings>
         <SymbolPackageFormat>snupkg</SymbolPackageFormat>
         <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
-        <Version>1.3.0</Version>
+        <Version>1.3.2</Version>
 
         <!-- Package Properties -->
         <Authors>Matt Nadareski</Authors>