michael@0: letters = new Array("a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z");
michael@0: numbers = new Array(1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26);
michael@0: colors  = new Array("FF","CC","99","66","33","00");
michael@0: 
michael@0: var endResult;
michael@0: 
michael@0: function doTest()
michael@0: {
michael@0:    endResult = "";
michael@0: 
michael@0:    // make up email address
michael@0:   /* BEGIN LOOP */
michael@0:    for (var k=0;k<4000;k++)
michael@0:    {
michael@0:       name = makeName(6);
michael@0:       (k%2)?email=name+"@mac.com":email=name+"(at)mac.com";
michael@0: 
michael@0:       // validate the email address
michael@0:       var pattern = /^[a-zA-Z0-9\-\._]+@[a-zA-Z0-9\-_]+(\.?[a-zA-Z0-9\-_]*)\.[a-zA-Z]{2,3}$/;
michael@0: 
michael@0:       if(pattern.test(email))
michael@0:       {
michael@0:          var r = email + " appears to be a valid email address.";
michael@0:          addResult(r);
michael@0:       }
michael@0:       else
michael@0:       {
michael@0:          r = email + " does NOT appear to be a valid email address.";
michael@0:          addResult(r);
michael@0:       }
michael@0:    }
michael@0:   /* END LOOP */
michael@0: 
michael@0:    // make up ZIP codes
michael@0:   /* BEGIN LOOP */
michael@0:    for (var s=0;s<4000;s++)
michael@0:    {
michael@0:       var zipGood = true;
michael@0:       var zip = makeNumber(4);
michael@0:       (s%2)?zip=zip+"xyz":zip=zip.concat("7");
michael@0: 
michael@0:       // validate the zip code
michael@0:   /* BEGIN LOOP */
michael@0:       for (var i = 0; i < zip.length; i++) {
michael@0:           var ch = zip.charAt(i);
michael@0:           if (ch < "0" || ch > "9") {
michael@0:               zipGood = false;
michael@0:               r = zip + " contains letters.";
michael@0:               addResult(r);
michael@0:           }
michael@0:       }
michael@0:   /* END LOOP */
michael@0:       if (zipGood && zip.length>5)
michael@0:       {
michael@0:          zipGood = false;
michael@0:          r = zip + " is longer than five characters.";
michael@0:          addResult(r);
michael@0:       }
michael@0:       if (zipGood)
michael@0:       {
michael@0:          r = zip + " appears to be a valid ZIP code.";
michael@0:          addResult(r);
michael@0:       }
michael@0:    }
michael@0:   /* END LOOP */
michael@0: }
michael@0: 
michael@0: function makeName(n)
michael@0: {
michael@0:    var tmp = "";
michael@0:   /* BEGIN LOOP */
michael@0:    for (var i=0;i<n;i++)
michael@0:    {
michael@0:       var l = Math.floor(26*Math.random());
michael@0:       tmp += letters[l];
michael@0:    }
michael@0:   /* END LOOP */
michael@0:    return tmp;
michael@0: }
michael@0: 
michael@0: function makeNumber(n)
michael@0: {
michael@0:    var tmp = "";
michael@0:   /* BEGIN LOOP */
michael@0:    for (var i=0;i<n;i++)
michael@0:    {
michael@0:       var l = Math.floor(9*Math.random());
michael@0:       tmp = tmp.concat(l);
michael@0:    }
michael@0:   /* END LOOP */
michael@0:    return tmp;
michael@0: }
michael@0: 
michael@0: function addResult(r)
michael@0: {
michael@0:    endResult += "\n" + r;
michael@0: }
michael@0: 
michael@0: doTest();