setting up argument parser

Author: leogdion

Package.resolved

@@ -25,7 +25,8 @@ let package = Package(
   ],
   dependencies: [
     .package(url: "https://github.com/apple/swift-syntax.git", from: "601.0.1"),
-    .package(url: "https://github.com/swiftlang/swift-docc-plugin", from: "1.4.0")
+    .package(url: "https://github.com/swiftlang/swift-docc-plugin", from: "1.4.0"),
+    .package(url: "https://github.com/apple/swift-argument-parser.git", from: "1.5.1")
   ],
   targets: [
     .target(
@@ -38,7 +39,10 @@ let package = Package(
     ),
     .executableTarget(
       name: "skit",
-      dependencies: ["SyntaxKit"]
+      dependencies: [
+        "SyntaxKit",
+        .product(name: "ArgumentParser", package: "swift-argument-parser")
+      ]
     ),
     .testTarget(
       name: "SyntaxKitTests",

Package.swift

@@ -0,0 +1,59 @@
+//
+//  Skit.swift
+//  SyntaxKit
+//
+//  Created by Leo Dion on 6/26/25.
+//
+
+import ArgumentParser
+import Foundation
+import SyntaxKit
+
+@main
+struct Skit:ParsableCommand {
+  static let configuration: CommandConfiguration = .init(
+    subcommands: [
+      Parse.self,
+      Generate.self
+    ],
+    defaultSubcommand: Generate.self
+  )
+}
+
+struct Parse: ParsableCommand {
+  func run() throws {
+    // Read Swift code from stdin
+    let code =
+      String(data: FileHandle.standardInput.readDataToEndOfFile(), encoding: .utf8) ?? ""
+
+    do {
+      // Parse the code using SyntaxKit
+      let response = try SyntaxParser.parse(code: code, options: ["fold"])
+
+      // Output the JSON to stdout
+      print(response.syntaxJSON)
+    } catch {
+      // If there's an error, output it as JSON
+      let errorResponse = ["error": error.localizedDescription]
+      if let jsonData = try? JSONSerialization.data(withJSONObject: errorResponse),
+        let jsonString = String(data: jsonData, encoding: .utf8)
+      {
+        print(jsonString)
+      }
+    }
+
+  }
+}
+
+
+struct Generate: ParsableCommand {
+  func run() throws {
+    let dsl =
+      String(data: FileHandle.standardInput.readDataToEndOfFile(), encoding: .utf8) ?? ""
+    
+    let code = try SyntaxKitGenerator.generateCode(from: dsl)
+    
+    print(code)
+    
+  }
+}