ios 正则表达式之验证手机号、邮箱、身份证、银行卡

ios 正则表达式之验证手机号、邮箱、身份证、银行卡

1、手机号

+ ( BOOL ) IsPhoneNumber:( NSString  *)number
{
    NSString  *phoneRegex1=@ "1[34578]([0-9]){9}" ;
    NSPredicate  *phoneTest1 = [ NSPredicate  predicateWithFormat:@ "SELF MATCHES %@" ,phoneRegex1];
    return   [phoneTest1 evaluateWithObject:number];
}

 2、邮箱

+ ( BOOL ) IsEmailAdress:( NSString  *)Email
{
    NSString  *emailCheck = @ "[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}" ;
    NSPredicate  *emailTest = [ NSPredicate  predicateWithFormat:@ "SELF MATCHES%@" ,emailCheck];
    return  [emailTest evaluateWithObject:Email];
}

 3、身份证

+ ( BOOL ) IsIdentityCard:( NSString  *)IDCardNumber
{
    if  (IDCardNumber.length <= 0) {
        return  NO ;
    }
    NSString  *regex2 = @ "^(\\d{14}|\\d{17})(\\d|[xX])$" ;
    NSPredicate  *identityCardPredicate = [ NSPredicate  predicateWithFormat:@ "SELF MATCHES %@" ,regex2];
    return  [identityCardPredicate evaluateWithObject:IDCardNumber];
}

 4、银行卡

+ ( BOOL ) IsBankCard:( NSString  *)cardNumber
{
    if (cardNumber.length==0)
    {
        return  NO ;
    }
    NSString  *digitsOnly = @ "" ;
    char  c;
    for  ( int  i = 0; i < cardNumber.length; i++)
    {
        c = [cardNumber characterAtIndex:i];
        if  (isdigit(c))
        {
            digitsOnly =[digitsOnly stringByAppendingFormat:@ "%c" ,c];
        }
    }
    int  sum = 0;
    int  digit = 0;
    int  addend = 0;
    BOOL  timesTwo =  false ;
    for  ( NSInteger  i = digitsOnly.length - 1; i >= 0; i--)
    {
        digit = [digitsOnly characterAtIndex:i] -  '0' ;
        if  (timesTwo)
        {
            addend = digit * 2;
            if  (addend > 9) {
                addend -= 9;
            }
        }
        else  {
            addend = digit;
        }
        sum += addend;
        timesTwo = !timesTwo;
    }
    int  modulus = sum % 10;
    return  modulus == 0;
}