rem: var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/; 
add: var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/i; 
context: function emailCheck (emailStr) {/* The following variable tells the rest of the function whether or notto verify that the address ends in a two-letter country or well-knownTLD.  1 means check it, 0 means don't. */var checkTLD=1;/* The following is the list of known TLDs that an e-mail address must end with. */var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;/* The following pattern is used to check if the entered e-mail addressfits the user@domain format.  It also is used to separate the usernamefrom the domain. */var emailPat=/^(.+)@(.+)$/;/* The following string represents the pattern for matching all specialcharacters.  We don't want to allow special characters in the address. These characters include ( ) < > @ , ; : \ " . [ ] */var specialChars="\\(\\)><@,;:\\\\\\\"\\.\\[\\]";/* The following string represents the range of characters allowed in a username or domainname.  It really states which chars aren't allowed.*/var validChars="\[^\\s" + specialChars + "\]";/* The following pattern applies if the "user" is a quoted string (inwhich case, there are no rules about which characters are allowedand which aren't; anything goes).  E.g. "jiminy cricket"@disney.comis a legal e-mail address. */var quotedUser="(\"[^\"]*\")";/* The following pattern applies for domains that are IP addresses,rather than symbolic names.  E.g. joe@[123.124.233.4] is a legale-mail address. NOTE: The square brackets are required. */var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;/* The following string represents an atom (basically a series of non-special characters.) */var atom=validChars + '+';/* The following string represents one word in the typical username.For example, in john.doe@somewhere.com, john and doe are words.Basically, a word is either an atom or quoted string. */var word="(" + atom + "|" + quotedUser + ")";// The following pattern describes the structure of the uservar userPat=new RegExp("^" + word + "(\\." + word + ")*$");/* The following pattern describes the structure of a normal symbolicdomain, as opposed to ipDomainPat, shown above. */var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");/* Finally, let's start trying to figure out if the supplied address is valid. *//* Begin with the coarse pattern to simply break up user@domain intodifferent pieces that are easy to analyze. */var matchArray=emailStr.match(emailPat);if (matchArray==null) {/* Too many/few @'s or something; basically, this address doesn'teven fit the general mould of a valid e-mail address. */alert("Email address seems incorrect (check @ and .'s)");return false;}var user=matchArray[1];var domain=matchArray[2];// Start by checking that only basic ASCII characters are in the strings (0-127).for (i=0; i<user.length; i++) {if (user.charCodeAt(i)>127) {alert("Ths username contains invalid characters.");return false;   }}for (i=0; i<domain.length; i++) {if (domain.charCodeAt(i)>127) {alert("Ths domain name contains invalid characters.");return false;   }}// See if "user" is valid if (user.match(userPat)==null) {// user is not validalert("The username doesn't seem to be valid.");return false;}/* if the e-mail address is at an IP address (as opposed to a symbolichost name) make sure the IP address is valid. */var IPArray=domain.match(ipDomainPat);if (IPArray!=null) {// this is an IP addressfor (var i=1;i<=4;i++) {if (IPArray[i]>255) {alert("Destination IP address is invalid!");return false;   }}return true;}// Domain is symbolic name.  Check if it's valid. var atomPat=new RegExp("^" + atom + "$");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;   }}/* domain name seems valid, but now make sure that it ends in aknown top-level domain (like com, edu, gov) or a two-letter word,representing country (uk, nl), and that there's a hostname preceding the domain or country. */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;}// Make sure there's a host name preceding the domain.if (len<2) {alert("This address is missing a hostname!");return false;}// If we've gotten this far, everything's valid!return true;}
meta: 5314	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5314/e384d20d235fce1a9d914453479a85ac9b1161b5/emailCheck.js/buggy/www/extras/emailCheck.js