Support for Swift 4

SelectableTextView.xcodeproj/project.pbxproj

@@ -562,7 +562,7 @@
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SKIP_INSTALL = YES;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-				SWIFT_SWIFT3_OBJC_INFERENCE = On;
+				SWIFT_SWIFT3_OBJC_INFERENCE = Default;
 				SWIFT_VERSION = 4.0;
 			};
 			name = Debug;
@@ -583,7 +583,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = com.guaranteed.SelectableTextView;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SKIP_INSTALL = YES;
-				SWIFT_SWIFT3_OBJC_INFERENCE = On;
+				SWIFT_SWIFT3_OBJC_INFERENCE = Default;
 				SWIFT_VERSION = 4.0;
 			};
 			name = Release;

Source/Extensions.swift

@@ -33,7 +33,7 @@ internal extension Character {
 internal extension String {
 
     var length: Int {
-        return characters.count
+        return count
     }
 
     func truncate(leadingCharacters: Int) -> String {

Source/TextCellModelFactory.swift

@@ -39,14 +39,14 @@ final internal class TextCellModelFactory {
         }
 
         let text = attributedText.string
-        guard text.characters.count > 0 else {
+        guard text.count > 0 else {
             return textModels
         }
 
         var characterCount: Int = 0
         var currentTextChunkStart = 0
         var currentTextChunkType = TextType.fromCharacter(character: text[text.startIndex])
-        typealias _Index = String.CharacterView.Index
+        typealias _Index = String.Index
 
         func addModelAtIndex(index: _Index) {
             let currentTextChunkEnd = characterCount
@@ -80,7 +80,7 @@ final internal class TextCellModelFactory {
             currentTextChunkStart = currentTextChunkEnd
         }
 
-        for index in text.characters.indices {
+        for index in text.indices {
             let currentCharacterTextType = TextType.fromCharacter(character: text[index])
             if currentTextChunkType != currentCharacterTextType {
                 addModelAtIndex(index: index)

Source/TextSelectionValidator/RegexValidators.swift

@@ -19,7 +19,7 @@ fileprivate final class Regex {
     }
 
     func test(input: String) -> Bool {
-        let matches = self.internalExpression.matches(in: input, options: [], range: NSMakeRange(0, input.characters.count))
+        let matches = self.internalExpression.matches(in: input, options: [], range: NSMakeRange(0, input.count))
         return matches.count > 0
     }
 }