How to compare A to #193; on the iPhone(如何在 iPhone 上比较 A 和 )
问题描述
我需要比较 2 个字符串,只查看第一个字母.
I need to compare 2 strings, looking at the first letter only.
有没有一种方法可以将 A 与 Á 进行比较,并将其识别为 A,而无需 ´
?
Is there a method to compare A to Á, and recognize it as A, without the ´
?
推荐答案
NSString
具有不区分变音符号的比较模式,可以满足您的需求.
NSString
has a diacritic-insensitive comparison mode which will do what you're after.
// should return NSOrderedSame, i.e. identical
[@"Apple" compare:@"Ápple"
options:NSDiacriticInsensitiveSearch]
如果您也希望它不区分大小写:
If you want it to be case-insensitive as well:
// ditto
[@"APPLE" compare:@"Ápple"
options:NSDiacriticInsensitiveSearch | NSCaseInsensitiveSearch]
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