iOS开发验证判断语句之正则表达式小结

2019-10-21 18:50:08

字体：大中小

来源：转载

供稿：网友

前言

大家都知道开发一直离不开一些常用验证格式，比如：邮箱，手机号等等，在开发过程中一般都会新建一个工具类，专门管理这些验证方式，简便开发过程。一般都采用正则表达式的形式来做判断，本文列举一些项目中非常实用的一些正则表达式的判断语句，以后开发起来直接复制粘贴就可以，这样大大节省了开发时间，下面不多说，直接上代码。

一、验证移动手机号：

+ (BOOL)isMobile:(NSString*)mobile{  NSString *regex = @"^1+[34578]+/d{9}";  NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", regex];  return [pred evaluateWithObject:mobile];}

二、邮箱验证：

+ (BOOL)isEmail:(NSString*)email{  NSString *regex = @"^[//w-]+(//.[//w-]+)*@[//w-]+(//.[//w-]+)+$";  NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", regex];  return [pred evaluateWithObject:email];}

三、整形验证

+ (BOOL)isPureInt:(NSString*)string{  NSScanner* scan = [NSScanner scannerWithString:string];  int val;  return[scan scanInt:&val] && [scan isAtEnd];}

四、浮点型验证

- (BOOL)isPureFloat:(NSString*)string{  NSScanner* scan = [NSScanner scannerWithString:string];  float val;  return[scan scanFloat:&val] && [scan isAtEnd];}

五、中文验证

+ (BOOL)isChinese:(NSString*)chinese{  NSString *regex = @"^[/u4e00-/u9fa5]";  NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", regex];  return [pred evaluateWithObject: chinese];}

六、网址URL验证

+ (BOOL)isURL:(NSString*)url{  NSString *regex = @"[a-zA-z]+://[^/s]*";  NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", regex];  return [pred evaluateWithObject: url];}

七、身份证号验证(比较繁琐)

+ (BOOL)verifyIDCardNumber:(NSString *)IDCardNumber { IDCardNumber = [IDCardNumber stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]]; if ([IDCardNumber length] != 18) { return NO; } NSString *mmdd = @”(((0[13578]|1[02])(0[1-9]|[12][0-9]|3[01]))|((0[469]|11)(0[1-9]|[12][0-9]|30))|(02(0[1-9]|[1][0-9]|2[0-8])))”; NSString *leapMmdd = @”0229”; NSString *year = @”(19|20)[0-9]{2}”; NSString *leapYear = @”(19|20)(0[48]|[2468][048]|[13579][26])”; NSString *yearMmdd = [NSString stringWithFormat:@”%@%@”, year, mmdd]; NSString *leapyearMmdd = [NSString stringWithFormat:@”%@%@”, leapYear, leapMmdd]; NSString *yyyyMmdd = [NSString stringWithFormat:@”((%@)|(%@)|(%@))”, yearMmdd, leapyearMmdd, @”20000229”]; NSString *area = @”(1[1-5]|2[1-3]|3[1-7]|4[1-6]|5[0-4]|6[1-5]|82|[7-9]1)[0-9]{4}”; NSString *regex = [NSString stringWithFormat:@”%@%@%@”, area, yyyyMmdd , @”[0-9]{3}[0-9Xx]”];NSPredicate *regexTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", regex];if (![regexTest evaluateWithObject:IDCardNumber]){  return NO;}int summary = ([IDCardNumber substringWithRange:NSMakeRange(0,1)].intValue + [IDCardNumber substringWithRange:NSMakeRange(10,1)].intValue) *7+ ([IDCardNumber substringWithRange:NSMakeRange(1,1)].intValue + [IDCardNumber substringWithRange:NSMakeRange(11,1)].intValue) *9+ ([IDCardNumber substringWithRange:NSMakeRange(2,1)].intValue + [IDCardNumber substringWithRange:NSMakeRange(12,1)].intValue) *10+ ([IDCardNumber substringWithRange:NSMakeRange(3,1)].intValue + [IDCardNumber substringWithRange:NSMakeRange(13,1)].intValue) *5+ ([IDCardNumber substringWithRange:NSMakeRange(4,1)].intValue + [IDCardNumber substringWithRange:NSMakeRange(14,1)].intValue) *8+ ([IDCardNumber substringWithRange:NSMakeRange(5,1)].intValue + [IDCardNumber substringWithRange:NSMakeRange(15,1)].intValue) *4+ ([IDCardNumber substringWithRange:NSMakeRange(6,1)].intValue + [IDCardNumber substringWithRange:NSMakeRange(16,1)].intValue) *2+ [IDCardNumber substringWithRange:NSMakeRange(7,1)].intValue *1 + [IDCardNumber substringWithRange:NSMakeRange(8,1)].intValue *6+ [IDCardNumber substringWithRange:NSMakeRange(9,1)].intValue *3;NSInteger remainder = summary % 11;NSString *checkBit = @"";NSString *checkString = @"10X98765432";checkBit = [checkString substringWithRange:NSMakeRange(remainder,1)];// 判断校验位return [checkBit isEqualToString:[[IDCardNumber substringWithRange:NSMakeRange(17,1)] uppercaseString]];}

八、一般用户名的验证

+ (BOOL) isUserName:(NSString *)name{  NSString *userNameRegex = @"^[A-Za-z0-9]{6,20}+$";  NSPredicate *userNamePredicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",userNameRegex]；    return [userNamePredicate evaluateWithObject:name];}

总结

以上就是这篇文章的全部内容了，希望本文的内容对大家的学习或者工作能带来一定的帮助，如果有疑问大家可以留言交流。

注：相关教程知识阅读请移步到IOS开发频道。

上一篇：IOS Swift 开发QRCore(二维码)实例详解

下一篇：iOS实现手指点击出现波纹的效果