使用NSRegularExpression检测字符串是否包含西里尔字母的示例 [英] Example of using NSRegularExpression to detect if string contains Cyrillic
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问题描述
我查看了 Apple参考在NSRegularExpression
上,并了解为了查看字符串是否为西里尔字母,我应该使用\p{script=cyrillic}
.但是,在参考指南或
I looked into the Apple reference on NSRegularExpression
, and understand that in order see if the string is Cyrillic I should use \p{script=cyrillic}
. However, I have not been able to find an actual example of how this is done in the reference guide or in an answer located in SO. What I would ideally like to achieve is:
if (string contains \p{script=cyrillic}){
return YES;
}
else {
return NO;
}
推荐答案
也许(我是iOS编程新手):
Maybe (I am an iOS programming newbie):
- (BOOL)containsCyrillic:(NSString*)str
{
NSString* const pattern = @"\\p{script=cyrillic}+";
NSRegularExpression* regex = [[NSRegularExpression alloc] initWithPattern:pattern
options:0
error:nil];
NSRange range = NSMakeRange(0, [str length]);
return [regex numberOfMatchesInString:str
options:0
range:range] > 0;
}
然后使用(NSString
的类别可能更好?)
And then the usage (a category for NSString
would probably be better?)
NSLog(@"hello: %hhd", [self containsCyrillic:@"hello"]);
NSLog(@"привет: %hhd", [self containsCyrillic:@"привет"]);
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