正则表达式，又称正规表示法，是对字符串操作的一种逻辑公式。正则表达式可以检测给定的
字符串是否符合我们定义的逻辑，也可以从字符串中获取我们想要的特定部分。它可以迅速地
用极简单的方式达到字符串的复杂控制。
pragma 正则校验邮箱号
(BOOL)dc_checkMailInput:(NSString *)mail{
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:mail];
}
pragma 正则校验手机号
(BOOL)dc_checkTelNumber:(NSString *)telNumber
{
telNumber = [telNumber stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];
if ([telNumber length] != 11) {
return NO;
}
/**
规则 – 更新日期 -03-30手机号码: 13[0-9], 14[5,7,9], 15[0, 1, 2, 3, 5, 6, 7, 8, 9], 17[0, 1, 6, 7, 8], 18[0-9]移动号段: 134,135,136,137,138,139,147,150,151,152,157,158,159,170,178,182,183,184,187,188联通号段: 130,131,132,145,155,156,170,171,175,176,185,186电信号段: 133,149,153,170,173,177,180,181,189
*[数据卡]: 14号段以前为上网卡专属号段，如中国联通的是145，中国移动的是147,中国电信的是149等等。[虚拟运营商]: 170[1700/1701/1702(电信)、1703/1705/1706(移动)、1704/1707/1708/1709(联通)]、171（联通）[卫星通信]: 1349
*/
/**
中国移动：China Mobile134,135,136,137,138,139,147(数据卡),150,151,152,157,158,159,170[5],178,182,183,184,187,188
*/
NSString *CM_NUM = @”^((13[4-9])|(147)|(15[0-2,7-9])|(17[8])|(18[2-4,7-8]))\d{8}|(170[5])\d{7}$”;
/**
中国联通：China Unicom130,131,132,145(数据卡),155,156,170[4,7-9],171,175,176,185,186
*/
NSString *CU_NUM = @”^((13[0-2])|(145)|(15[5-6])|(17[156])|(18[5,6]))\d{8}|(170[4,7-9])\d{7}$”;
/**
中国电信：China Telecom133,149(数据卡),153,170[0-2],173,177,180,181,189
*/
NSString *CT_NUM = @”^((133)|(149)|(153)|(17[3,7])|(18[0,1,9]))\d{8}|(170[0-2])\d{7}$”;
NSPredicate *pred_CM = [NSPredicate predicateWithFormat:@”SELF MATCHES %@”,CM_NUM];
NSPredicate *pred_CU = [NSPredicate predicateWithFormat:@”SELF MATCHES %@”,CU_NUM];
NSPredicate *pred_CT = [NSPredicate predicateWithFormat:@”SELF MATCHES %@”,CT_NUM];
BOOL isMatch_CM = [pred_CM evaluateWithObject:telNumber];
BOOL isMatch_CU = [pred_CU evaluateWithObject:telNumber];
BOOL isMatch_CT = [pred_CT evaluateWithObject:telNumber];
if (isMatch_CM || isMatch_CT || isMatch_CU) {
return YES;
}
return NO;
}
pragma 正则校验用户密码6-18位数字和字母组合
(BOOL)dc_checkPassword:(NSString *) password{
NSString *pattern = @”^(?![0-9]+)(?![a−zA−Z]+)(?![a−zA−Z]+)[a-zA-Z0-9]{6,18}”;
NSPredicate *pred = [NSPredicate predicateWithFormat:@”SELF MATCHES %@”, pattern];
BOOL isMatch = [pred evaluateWithObject:password];
return isMatch;
}
pragma 正则校验用户身份证号15或18位
(BOOL)dc_checkUserIdCard: (NSString *) idCard{
BOOL flag;
if (idCard.length <= 0) {
flag = NO;
return flag;
}
NSString *regex2 = @”^(\d{14}|\d{17})(\d|[xX])$”;
NSPredicate *pred = [NSPredicate predicateWithFormat:@”SELF MATCHES %@”,regex2];
BOOL isMatch = [pred evaluateWithObject:idCard];
return isMatch;
}
pragma 正则匹员工号,12位的数字
(BOOL)dc_checkEmployeeNumber : (NSString *) number
{
NSString *pattern = @”^[0-9]{12}”;
NSPredicate *pred = [NSPredicate predicateWithFormat:@”SELF MATCHES %@”, pattern];
BOOL isMatch = [pred evaluateWithObject:number];
return isMatch;
}
pragma 正则校验URL
(BOOL)dc_checkURL : (NSString *) url{
NSString *pattern = @”^[0-9A-Za-z]{1,50}”;
NSPredicate *pred = [NSPredicate predicateWithFormat:@”SELF MATCHES %@”, pattern];
BOOL isMatch = [pred evaluateWithObject:url];
return isMatch;
}
pragma 正则校验昵称
(BOOL)dc_checkNickname:(NSString *) nickname{
NSString *nicknameRegex = @”^[\u4e00-\u9fa5]{4,8}$”;
NSPredicate *pred = [NSPredicate predicateWithFormat:@”SELF MATCHES %@”,nicknameRegex];
BOOL isMatch = [pred evaluateWithObject:nickname];
return isMatch;
}
pragma 正则校验以C开头的18位字符
(BOOL)dc_checkCtooNumberTo18:(NSString *) nickNumber{
NSString *nickNum=@”^C{1}[0-9]{18}$”;
NSPredicate *pred = [NSPredicate predicateWithFormat:@”SELF MATCHES %@”,nickNum];
BOOL isMatch = [pred evaluateWithObject:nickNumber];
return isMatch;
}
pragma 正则校验以C开头字符
(BOOL)dc_checkCtooNumber:(NSString *) nickNumber{
NSString *nickNum=@”^C{1}[0-9]+$”;
NSPredicate *pred = [NSPredicate predicateWithFormat:@”SELF MATCHES %@”,nickNum];
BOOL isMatch = [pred evaluateWithObject:nickNumber];
return isMatch;
}
pragma 正则校验银行卡号是否正确
(BOOL)dc_checkBankNumber:(NSString *) bankNumber{NSString *bankNum=@”^([0-9]{16}|[0-9]{19})$”;
NSPredicate *pred = [NSPredicate predicateWithFormat:@”SELF MATCHES %@”,bankNum];
BOOL isMatch = [pred evaluateWithObject:bankNumber];
return isMatch;
}
pragma 正则只能输入数字和字母
(BOOL)dc_checkTeshuZifuNumber:(NSString *) CheJiaNumber{NSString *bankNum=@”^[A-Za-z0-9]+$”;
NSPredicate *pred = [NSPredicate predicateWithFormat:@”SELF MATCHES %@”,bankNum];
BOOL isMatch = [pred evaluateWithObject:CheJiaNumber];
return isMatch;
}
pragma 车牌号验证
(BOOL)dc_checkCarNumber:(NSString *) CarNumber{NSString *bankNum = @”^[\u4e00-\u9fa5]{1}[a-zA-Z]{1}[a-zA-Z_0-9]{4}[a-zA-Z_0-9_\u4e00-\u9fa5]$”;
NSPredicate *pred = [NSPredicate predicateWithFormat:@”SELF MATCHES %@”,bankNum];
BOOL isMatch = [pred evaluateWithObject:CarNumber];
return isMatch;
}
