Revalx rule help

Question

I am trying to check the driver license for the form I am creating. I tried to use one regex.

• Maximum length 9 characters
• Alphanumeric characters
• Must be at least 4 numeric characters
• Must be no more than two alphabetic characters
• The third and fourth characters must be numeric

I am new to regex. I searched for searches trying to figure it out. Help with this will be appreciated.

Answer 1

, , , . ( ).

, , , - quantifier, , 9 :

^[0-9a-zA-Z]{4,9}$

anchors ^ $ , , . , "aaaaa" "a{3}", .

, , :

^..[0-9]{2}

^ anchor dot (.) , , .

, , .

EDIT: . .

, (, , ). , , . a 1 .

(3), . :

1111

, , :

a1111
1a111
1111a

, , - :

11111

, , , ( " ", " " " " . pipe (|), .

Answer 2

? , :

static bool IsValid(string input)
{
    return Regex.IsMatch(input, @"^[A-Za-z0-9]{4,9}$") // length and alphanumeric
        && Regex.IsMatch(input, "^..[0-9]{2}") // 3rd+4th are numeric
        && Regex.IsMatch(input, "(.*[0-9]){4}") // at least 4 numeric
        && !Regex.IsMatch(input, "(.*[A-Za-z]){3}"); // no more than 2 alpha
}

Answer 3

. , , , , - ,

Answer 4

...

function utilities() {
function validateLicense(stateCode, licenseNumber) {
    // from http://www.uiia.org/documents/license_guidelines_08.pdf
    var oneToSevenNumeric = /^[0-9]{1,7}$/;
    var oneAlpha = /(.*[A-Za-z]){1}/;
    var oneAlphaPlusSeven = /^.[0-9]{7}$/;
    var twoAlpha = /(.*[A-Za-z]){2}/;
    var alphaPlusSixNumeric = /(.*[0-9]){6}$/;
    var threeToFiveNumeric = /(.*[0-9]){3,5}$/;
    var fiveToNineNumeric = /(.*[0-9]){5,9}/;
    var sixNumeric = /^[0-9]{6}$/;
    var sevenNumeric = /^[0-9]{7}$/;
    var sevenToNineNumeric = /^[0-9]{7,9}$/;
    var eightAreNumbers = /(.*[0-9]){8}/;
    var nineNumeric = /^[0-9]{9}$/;
    var nineAlphaChars = /^[A-Za-z0-9]{9}$/;
    var tenNumeric = /^[0-9]{10}$/;
    var elevenNumeric = /^.[0-9]{11}$/;
    var twelveNumeric = /^.[0-9]{12}$/;
    var hPlusEight = /([H][0-9]{8})$/;
    var sevenPlusX = /([H][0-9]{7}X)$/;

    if (stateCode == undefined || licenseNumber == undefined) {
        return "";
    }
    if (stateCode == 'AK') {
       return validateExpression(oneToSevenNumeric, licenseNumber, "Must be 1-7 numeric");
    }
    if (stateCode == 'AL') {
      return validateExpression(sevenNumeric, licenseNumber, "Must be 7 numeric");
    }
    if (stateCode == 'AR' || stateCode == 'MS') {
      return validateExpression(nineNumeric, licenseNumber, "Must be 9 numeric");
    }
    if (stateCode == 'AZ') { 
        if (nineNumeric.test(licenseNumber) == true) {
            return "";
        }
        if (oneAlpha.test(licenseNumber) && eightAreNumbers.test(licenseNumber)) {
            return "";
        }
        if (twoAlpha.test(licenseNumber) && threeToFiveNumeric.test(licenseNumber) && licenseNumber.length < 8) {
            return "";
        }
        return "Must be 1 Alphabetic, 8 Numeric; or 2 Alphabetic, 3-6 Numeric; or 9 Numeric";
    }
    if (stateCode == 'CA') {

        if (oneAlpha.test(licenseNumber) && oneAlphaPlusSeven.test(licenseNumber)) {
            return "";
        }
        return "Must be 1 alpha and 7 numeric";
    }
    if (stateCode == 'CO' || stateCode == 'CN' || stateCode == 'CT') {
        return validateExpression(nineNumeric, licenseNumber, "Must be 9 numeric");
    }
    if (stateCode == 'DC') {
        if (sevenNumeric.test(licenseNumber) || nineNumeric.test(licenseNumber)) {
            return "";
        }
        return  "Must be 7 - 9 numeric";
    }
    if (stateCode == 'DE') {
        if (oneToSevenNumeric.test(licenseNumber)) {
            return "";
        }
        return "Must be 1 - 7 numeric";
    }
    if (stateCode == 'FL') {
        if (oneAlpha.test(licenseNumber) && twelveNumeric.test(licenseNumber)) {
            return "";
        }
        return "Must be 1 alpha, 12 numeric";
    }
    if (stateCode == 'GA') {
        if (sevenToNineNumeric.test(licenseNumber)) {
            return "";
        }
        return "Must be 7 - 9 numeric";
    }
    if (stateCode == 'HI') {
        if (nineNumeric.test(licenseNumber) || hPlusEight.test(licenseNumber)) {
            return "";
        }
        return "Must 'H' + 8 numeric; 9 numeric";
    }
    if (stateCode == 'ID') {
        if (nineNumeric.test(licenseNumber) || sixNumeric.test(licenseNumber) || (twoAlpha.test(licenseNumber) && alphaPlusSixNumeric.test(licenseNumber))) {
            return "";
        }
        return "Must 9 numbers or 6 numbers; or 2 char, 6 numbers ";
    }

    if (stateCode == 'IL') {
        if (oneAlpha.test(licenseNumber) && elevenNumeric.test(licenseNumber)) {
            return "";
        }
        return "Must 1 character 11 numbers";
    }
    if (stateCode == 'IN') {
        if (tenNumeric.test(licenseNumber) || nineNumeric.test(licenseNumber)) {
            return "";
        }
        return "Must be 9-10 numbers";
    }
    if (stateCode == 'IA') {
        if (nineAlphaChars.test(licenseNumber) || nineNumeric.test(licenseNumber)) {
            return "";
        }
        return "Must be 9 alpha numbers";
    }
    if (stateCode == 'KS' || stateCode == 'KY') {
        if (nineNumeric.test(licenseNumber) || (oneAlpha.test(licenseNumber) && eightAreNumbers.test(licenseNumber) && licenseNumber.length == 9)) {
            return "";
        }
        return "Must be 1 alpha and 8 numeric";
    }
    if (stateCode == 'LA') {
        if (nineNumeric.test(licenseNumber) == true) {
            return "";
        }
        return "Must be 9 numeric";
    }
    if (stateCode == 'ME') {
        if (sevenNumeric.test(licenseNumber) || sevenPlusX.test(licenseNumber)) {
            return "";
        }
        return "Must be 7 numeric";
    }
    if (stateCode == 'MD' || stateCode == 'MI' || stateCode == 'MN') {
        if (oneAlpha.test(licenseNumber) && twelveNumeric.test(licenseNumber)) {
            return "";
        }
        return "1 Alphabetic, 12 Numeric";
    }
    if (stateCode == 'MA') {
        if ((oneAlpha.test(licenseNumber) && eightAreNumbers.test(licenseNumber) && licenseNumber.length == 9) || nineNumeric.test(licenseNumber)) {
            return "";
        }
        return "Must be 1 alpha, 8 numeric; 9 numeric";
    }

    if (stateCode == 'MO') {
        if ((oneAlpha.test(licenseNumber) && fiveToNineNumeric.test(licenseNumber) && licenseNumber.length < 11) || nineNumeric.test(licenseNumber)) {
            return "";
        }
        return "1 alpha - 5-9 Numeric or 9 numeric";
    }
    return "";
}

function validateExpression(expression, value, error) {
    if (expression.test(value) == true) {
        return "";
    }
    return error;
}

return {
    validateLicense: validateLicense,
    validateExpression: validateExpression
};

}

Answer 5

akf
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Answer 6

, - :

http://www.gskinner.com/RegExr/

Answer 7

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