检测NSString是否包含中文字符 [英] Detecting if NSString contains chinese characters

问题描述

我有一个 UISearchBar ，如果用户输入英文，我希望我的数据按pinYin排序，当用户输入中文字符时，我希望按字符本身排序。

I have an UISearchBar, and I want my data to be sorted by pinYin if the user inputs English, and sorted by the characters themselves when the user inputs Chinese characters.

是否有类似

if (searchText isKindofClass: UTF-8String) 

检测 NSString 是否包含中文字符？

to detect if an NSString contains Chinese characters?

推荐答案

您可以使用 NSRegularExpression 搜索字符系列：

You can use a NSRegularExpression to search for "character families" :

https://developer.apple.com/library/mac/#documentation/Foundation/Reference/NSRegularExpression_Class/Reference/Reference.html

http://userguide.icu-project.org/strings/regexp

他们给出了一个 \p {script = cyrillic} 的例子，我想通过搜索一下你会找到与中文有关的东西。

They give an example of \p{script=cyrillic}, I guess by searching a little you'll find something related to Chinese.

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