EZ one, validation

Well, I want my usernames to only consist of characters and numbers... no symbols such as $%^ etc

Right now, what is two variables...

strUsername
strAsciiCode = "ABCD...abcd...1234...._-"

strAsciiCode contains all the characters that are acceptible.

I do a for loop
The pcode looks like this:

Code:

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for length of username

  for length of asciicode

    check if selected character in username cooresponds to strAscii
    if it does, keep going, if not, return false

  end loop 2

end loop 1

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Is there a better way of doing this? Just seems processor costly to do this... or am i really worrying about nothing?

Javascript or VBScript?

Quote:

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Is there a better way of doing this? Just seems processor costly to do this... or am i really worrying about nothing? [/B]

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You could Use RegEx, i am not too good with RegEx, but a google search should be enough :). Since you are looping through a small string it shouldnt be a problem to use 2 loops.

Javascript, sorry

heres the code i just wrote it

Code:

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        function sUser_validate(strString)
        {
                               
                var i = 0;
                var j = 0;
                var fFlag = 0;
                               
                for(i=0; i <= strString.length;i++)
                {
                        for(j = 0; j <= objSI.sCart.sAscii.length;j++)
                        {
                                if(strString.substr(i,1) == objSI.sCart.sAscii.substr(j,1))
                                        fFlag++;
                       
                        }
                                       
                        if(fFlag == 0)
                                return false;
                        else
                                fFlag = 0;
                }
                               
                return true;
        }

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Bah i just found out its not working the way it should. UGH...
anyway
objSI.sCart.sAscii is the list of all valid chars "ABCD... etc"
strString is the parameter that will be checked.

What happens when i actually use this function as so
sUser_validate('myname')
it works great

when i get the same input from a form

var objMyName = Request.Form('txtMyName') + '';
sUser_validate(objMyName);

it always returns true even if objMyName is something liek 'blahblah1234!!@#!@#'

Wait, it works... i umm, was getting the wrong variable from the form. Anyhow, thats the code... looks efficent enough to me, what do you think D?

Quote:

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Originally posted by invitro
Wait, it works... i umm, was getting the wrong variable from the form. Anyhow, thats the code... looks efficent enough to me, what do you think D?

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I just about started debugging it :), glad you found the problem.

Yes it looks good enough to me ...

Good luck. Happy programming :wave: