Fixed a crash that happens when maxCount is less than or equal to objcString.length

ShadyElyaski · ShadyElyaski · commit 33a846967fac · 2018-02-07T19:08:37.000-08:00
diff --git a/VSTwitterTextCounter/Classes/VSTwitterTextCounter.swift b/VSTwitterTextCounter/Classes/VSTwitterTextCounter.swift
@@ -361,7 +361,7 @@ public class VSTwitterTextCounter: UIControl
             let objcString = NSString(string: textView.text)
             
             // Find if last allowed index falls between a unicode character
-            var lastAllowedCharacterIndex = maxCount    // Last allowed character index
+            var lastAllowedCharacterIndex = objcString.length > maxCount ? maxCount : objcString.length - 1    // Last allowed character index
             let rangeOfComposedCharacter = objcString.rangeOfComposedCharacterSequence(at: lastAllowedCharacterIndex)
             if rangeOfComposedCharacter.contains(lastAllowedCharacterIndex)
             {

Original file line number	Diff line number	Diff line change
`@@ -361,7 +361,7 @@ public class VSTwitterTextCounter: UIControl`
`361`	`361`	`let objcString = NSString(string: textView.text)`
`362`	`362`
`363`	`363`	`// Find if last allowed index falls between a unicode character`
`364`		`- var lastAllowedCharacterIndex = maxCount // Last allowed character index`
	`364`	`+ var lastAllowedCharacterIndex = objcString.length > maxCount ? maxCount : objcString.length - 1 // Last allowed character index`
`365`	`365`	`let rangeOfComposedCharacter = objcString.rangeOfComposedCharacterSequence(at: lastAllowedCharacterIndex)`
`366`	`366`	`if rangeOfComposedCharacter.contains(lastAllowedCharacterIndex)`
`367`	`367`	`{`