Add spm support

Package.swift

@@ -0,0 +1,24 @@
+// swift-tools-version: 5.7
+// The swift-tools-version declares the minimum version of Swift required to build this package.
+
+import PackageDescription
+
+let package = Package(
+    name: "StyledText",
+    platforms: [
+        .iOS(.v12)
+    ],
+    products: [
+        .library(
+            name: "StyledText",
+            targets: ["StyledText"])
+    ],
+    dependencies: [],
+    targets: [
+        .target(
+            name: "StyledText",
+            dependencies: [],
+            path: "Sources")
+    ],
+    swiftLanguageVersions: [.v5]
+)

StyledText/Classes/DynamicTypeController.swift → Sources/StyledText/Classes/DynamicTypeController.swift

@@ -1,6 +1,8 @@
+#if canImport(UIKit)
+
 import UIKit
 
-public protocol DynamicTypeControllerDelegate: class {
+public protocol DynamicTypeControllerDelegate: AnyObject {
     func preferredContentSizeCategoryDidUpdate(controller: DynamicTypeController, newCategory: UIContentSizeCategory)
 }
 
@@ -114,3 +116,5 @@ private extension UIContentSizeCategory {
         }
     }
 }
+
+#endif

StyledText/Classes/StyledButton.swift → Sources/StyledText/Classes/StyledButton.swift

@@ -1,3 +1,5 @@
+#if canImport(UIKit)
+
 import UIKit
 
 open class StyledButton: UIButton {
@@ -81,3 +83,5 @@ open class StyledButton: UIButton {
         updateStyles()
     }
 }
+
+#endif

StyledText/Classes/StyledLabel.swift → Sources/StyledText/Classes/StyledLabel.swift

@@ -1,3 +1,5 @@
+#if canImport(UIKit)
+
 import UIKit
 
 public class StyledLabel: UILabel {
@@ -44,3 +46,5 @@ public class StyledLabel: UILabel {
         super.attributedText = styledText.styledAttributedStringValue
     }
 }
+
+#endif

StyledText/Classes/StyledText.swift → Sources/StyledText/Classes/StyledText.swift

@@ -1,3 +1,5 @@
+#if canImport(UIKit)
+
 import Foundation
 
 public protocol StyledText {
@@ -48,3 +50,5 @@ public struct StyledAttributedString: StyledText {
         return mutableString
     }
 }
+
+#endif

StyledText/Classes/StyledTextView.swift → Sources/StyledText/Classes/StyledTextView.swift

@@ -1,3 +1,5 @@
+#if canImport(UIKit)
+
 import UIKit
 
 open class StyledTextView: UITextView {
@@ -44,3 +46,5 @@ open class StyledTextView: UITextView {
         super.attributedText = styledText.styledAttributedStringValue
     }
 }
+
+#endif

StyledText/Classes/TextStyle.swift → Sources/StyledText/Classes/TextStyle.swift

@@ -1,4 +1,6 @@
-import Foundation
+#if canImport(UIKit)
+
+import UIKit
 
 public protocol TextStyleDefaultsGenerator {
     static func defaultKern(for font: UIFont) -> CGFloat?
@@ -133,3 +135,5 @@ public struct TextStyle {
                          dynamicTypeBehavior: dynamicTypeBehavior)
     }
 }
+
+#endif

StyledText.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'StyledText'
-  s.version          = '1.3.0'
+  s.version          = '1.4.0'
   s.summary          = 'Declarative text styles and simple Dynamic Type support for iOS'
   s.description      = <<-DESC
                         StyledText is a library that simplifies styling dynamic text in iOS applications. Instead of having to use attributed strings every time you need to update text, you can declaratively set a text style on your labels. When the text of the label is updated, the label uses the preset style.
@@ -9,8 +9,8 @@ Pod::Spec.new do |s|
   s.license          = { :type => 'MIT', :file => 'LICENSE' }
   s.author           = { 'huebnerob' => '[email protected]' }
   s.source           = { :git => 'https://github.com/blueapron/styled-text.git', :tag => 'v' + s.version.to_s }
-  s.ios.deployment_target = '10.0'
-  s.swift_version = '5.0'
-  s.source_files = 'StyledText/Classes/**/*'
+  s.ios.deployment_target = '12.0'
+  s.swift_version = '5.7'
+  s.source_files = 'Sources/StyledText/Classes/**/*'
   s.frameworks = 'UIKit'
 end