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  1. #1
    Regular Coder tpeck's Avatar
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    email address validation routine for two addresses

    I have an email address routine in js and it checks one email address fine. Problem is I have two email addresses to validate:

    form name="myform" onsubmit="return emailCheck(this.email1.value);return emailCheck(this.email2.value);" action="http://my.com/cgi-bin/form2email.pl" method="POST">

    The above doesn't go through the routine twice.

    This is the email validation routine, but I think the problem is in the way I am calling it:

    Code:
    function emailCheck (emailStr) {
    
    var checkTLD=1;
    var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;
    var emailPat=/^(.+)@(.+)$/;
    var specialChars="\\(\\)><@,;:\\\\\\\"\\.\\[\\]";
    var validChars="\[^\\s" + specialChars + "\]";
    var quotedUser="(\"[^\"]*\")";
    var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
    var atom=validChars + '+';
    var word="(" + atom + "|" + quotedUser + ")";
    var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
    var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");
    var matchArray=emailStr.match(emailPat);
    
    if (matchArray==null) {
    alert("Email address seems incorrect (check @ and .'s)");
    return false;
    }
    var user=matchArray[1];
    var domain=matchArray[2];
    
    for (i=0; i<user.length; i++) {
    if (user.charCodeAt(i)>127) {
    alert("Ths username contains invalid characters.");
    return false;
       }
    }
    for (i=0; i<domain.length; i++) {
    if (domain.charCodeAt(i)>127) {
    alert("Ths domain name contains invalid characters.");
    return false;
       }
    }
    
    if (user.match(userPat)==null) {
    alert("The username doesn't seem to be valid.");
    return false;
    }
    
    var IPArray=domain.match(ipDomainPat);
    if (IPArray!=null) {
    
    for (var i=1;i<=4;i++) {
    if (IPArray[i]>255) {
    alert("Destination IP address is invalid!");
    return false;
       }
    }
    return true;
    }
    
    var atomPat=new RegExp("^" + atom + "$");
    var domArr=domain.split(".");
    var len=domArr.length;
    for (i=0;i<len;i++) {
    if (domArr[i].search(atomPat)==-1) {
    alert("The domain name does not seem to be valid.");
    return false;
       }
    }
    
    if (checkTLD && domArr[domArr.length-1].length!=2 && 
    domArr[domArr.length-1].search(knownDomsPat)==-1) {
    alert("The address must end in a well-known domain or two letter " + "country.");
    return false;
    }
    
    if (len<2) {
    alert("This address is missing a hostname!");
    return false;
    }
    
    return true;
    }
    Any help would be appreciated. Thanks.
    The difference between genius and stupidity is that genius has its limits. (Albert Einstein)

  • #2
    Senior Coder
    Join Date
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    Maybe try

    Code:
    <form name="myform" onsubmit="return(emailCheck(this.email1.value) && emailCheck(this.email2.value));" action="http://my.com/cgi-bin/form2email.pl" method="POST">
    I didn't test this code but the theory should be sound. You want to see if email1 AND email2 are valid and return the result.

    david_kw


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