iOS - 正则表达式判断邮箱、身份证..是否正确

http://blog.sina.com.cn/s/blog_6fd90b5b0101gcqd.html

http://www.2cto.com/kf/201311/256494.html

常用的几个列出

//邮箱

+ (BOOL) validateEmail:(NSString *)email

{

    NSString *emailRegex = @"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}";

    NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegex];

    return [emailTest evaluateWithObject:email];

}

 

 

//手机号码验证

+ (BOOL)checkTelNumber:(NSString *) telNumber

{

    NSString *pattern =@"^1+[34578]+\\d{9}";

    NSPredicate *pred = [NSPredicatepredicateWithFormat:@"SELF MATCHES %@", pattern];

    BOOL isMatch = [predevaluateWithObject:telNumber];

    return isMatch;

}

//身份证号

+ (BOOL) validateIdentityCard: (NSString *)identityCard

{

    BOOL flag;

    if (identityCard.length <= 0) {

        flag = NO;

        return flag;

    }

    NSString *regex2 = @"^(\\d{14}|\\d{17})(\\d|[xX])$";

    NSPredicate *identityCardPredicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex2];

    return [identityCardPredicate evaluateWithObject:identityCard];

}

//匹配中文

+ (BOOL) validateEmail:(NSString *)zhongwen

{

    NSString *emailRegex = @"[\u4E00-\u9FA5]*";

    NSPredicate *zhongwenTest = [NSPredicatepredicateWithFormat:@"SELF MATCHES %@", emailRegex];

    return [zhongwenTestevaluateWithObject:zhongwen];

}