Add Example App (#237)

Author: thecoolwinter

Example/CodeEditSourceEditorExample/CodeEditSourceEditorExample.xcodeproj/project.pbxproj

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>

Example/CodeEditSourceEditorExample/CodeEditSourceEditorExample.xcodeproj/project.xcworkspace/contents.xcworkspacedata

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+{
+  "colors" : [
+    {
+      "idiom" : "universal"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

Example/CodeEditSourceEditorExample/CodeEditSourceEditorExample.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

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+{
+  "images" : [
+    {
+      "idiom" : "mac",
+      "scale" : "1x",
+      "size" : "16x16"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "2x",
+      "size" : "16x16"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "1x",
+      "size" : "32x32"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "2x",
+      "size" : "32x32"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "1x",
+      "size" : "128x128"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "2x",
+      "size" : "128x128"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "1x",
+      "size" : "256x256"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "2x",
+      "size" : "256x256"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "1x",
+      "size" : "512x512"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "2x",
+      "size" : "512x512"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

Example/CodeEditSourceEditorExample/CodeEditSourceEditorExample.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved

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+{
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

Example/CodeEditSourceEditorExample/CodeEditSourceEditorExample/Assets.xcassets/AccentColor.colorset/Contents.json

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+    <key>com.apple.security.app-sandbox</key>
+    <true/>
+    <key>com.apple.security.files.user-selected.read-write</key>
+    <true/>
+</dict>
+</plist>

Example/CodeEditSourceEditorExample/CodeEditSourceEditorExample/Assets.xcassets/AppIcon.appiconset/Contents.json

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+//
+//  CodeEditSourceEditorExampleApp.swift
+//  CodeEditSourceEditorExample
+//
+//  Created by Khan Winter on 2/24/24.
+//
+
+import SwiftUI
+
+@main
+struct CodeEditSourceEditorExampleApp: App {
+    var body: some Scene {
+        DocumentGroup(newDocument: CodeEditSourceEditorExampleDocument()) { file in
+            ContentView(document: file.$document, fileURL: file.fileURL)
+        }
+    }
+}

Example/CodeEditSourceEditorExample/CodeEditSourceEditorExample/Assets.xcassets/Contents.json

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+//
+//  CodeEditSourceEditorExampleDocument.swift
+//  CodeEditSourceEditorExample
+//
+//  Created by Khan Winter on 2/24/24.
+//
+
+import SwiftUI
+import UniformTypeIdentifiers
+
+struct CodeEditSourceEditorExampleDocument: FileDocument {
+    var text: String
+
+    init(text: String = "") {
+        self.text = text
+    }
+
+    static var readableContentTypes: [UTType] {
+        [
+            .sourceCode,
+            .plainText,
+            .delimitedText,
+            .script
+        ]
+    }
+
+    init(configuration: ReadConfiguration) throws {
+        guard let data = configuration.file.regularFileContents,
+              let string = String(data: data, encoding: .utf8)
+        else {
+            throw CocoaError(.fileReadCorruptFile)
+        }
+        text = string
+    }
+
+    func fileWrapper(configuration: WriteConfiguration) throws -> FileWrapper {
+        let data = text.data(using: .utf8)!
+        return .init(regularFileWithContents: data)
+    }
+}