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guard characters.count > index in yep_mentionWordInIndex

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nixzhu
2016-01-20 13:36:56 +08:00
parent 3d9e7b18f4
commit 5fe8a419d2
1 changed files with 3 additions and 1 deletions
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Yep/Extensions/String+Yep.swift
+3 -1
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@@ -47,11 +47,13 @@ extension String {
func yep_mentionWordInIndex(index: Int) -> (wordString: String, mentionWordRange: Range<Index>)? {
println("startIndex: \(startIndex), endIndex: \(endIndex), index: \(index), length: \((self as NSString).length), count: \(self.characters.count)")
guard index > 0 else {
return nil
}
guard (self as NSString).length > index else {
guard self.characters.count > index else {
return nil
}