How to determine if NSString is Latin?

Question

I am trying to determine if a string is Latin or Japanese.

I tried something like the following, but it returns YES for Japanese strings:

NSCharacterSet *alphaSet = [NSCharacterSet alphanumericCharacterSet]; BOOL isAlpha = [[myStr stringByTrimmingCharactersInSet:alphaSet] isEqualToString:@""]; 

The string may be the word "cafe" or something like "カ フ ェ" or "喫茶 店".

Answer 1

Use the canBeConvertedToEncoding: method. For example:

 BOOL isLatin = [myString canBeConvertedToEncoding:NSISOLatin1StringEncoding]; 

Available encodings are here .