Dear guys!

You helped me a lot before, and now I have a new question, for whose know the anwer. I want to make a script, which helps to calculate (and I found a lot of script which can calculate) BUT (!) Is there anyway to make one, which gets the information from another partner (in chat window) and gives the solution at the same chat window?

For example: Peter says: - 5+5*2=?
     (My script)  I say: The solution is 20.

Thanks for the answers before!

can i just ask you to clarify whether you want the script to give the correct answer? or whether you'd like the wrong answer given ala your example

plus i see little use for such things, the user can just use windows built in calculator

Ohh i misswrote I would like to give the script the correct answer
If anyone have idea about how to script this plz share with us Ty

Welcome to JScript. There is a function called eval(). Carry on my wayward son!

If anyone can script me this, just write here! Thanks

Why dont you try?

All you need to do is code something that would say look for a remote command like !calc then process the equation after using eval(). Simple

My only problem is, I cant programming well in msn scripting. I have read the handbook of this scripting, but it just say, which function what does. But how can I write a simple calculator, it doesn't say... so i am stupid about it.

I already told you. You don't have to reinvent the wheel you can use the eval() function which will evaluate a mathematical expression.

Here is a good sample, this calculator can give solution for everything.

http://www.msgpluslive.net/scripts/view/100-Huhu-Calc/

Can anybody write into the script, to work it, how i would like? (My contact have to gives the question, and not me. For example: Peter says: 1+1?, and my chat window gives the answer for him.)

Seriously it isn't hard to do if you take the time to learn.

You have the following:

Javascript code:

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function OnEvent_ChatWndReceiveMessage(pChatWnd, sOrigin, nMessage, nMessageKind) {
 
}

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Javascript code:

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if (nMessage.indexOf('!calc') === 0) {
    /* the above if statement checks if the beginning of the message
        is !calc.
    */
}

---

Javascript code:

---

nMessage.substr(6);

---

My problem is: I dont have time, and energy to learn it, I work 12 hours a day.

If anyone has time, to write what I need, pls help! Thx

I gave you almost everything you need... I am sorry but if someone isn't willing to learn then why should I just give them something... they wont learn at all...

Your original post said you wanted to make a script not have one made for you...

not everyone is willing to learn how to code, matty

quote:

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Originally posted by Chrono
not everyone is willing to learn how to code, matty

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You are right about the original post, i am looking for someone, who had a little time to write me the script.

quote:

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Originally posted by matty
All you need to do is code something that would say look for a remote command like !calc then process the equation after using eval(). Simple

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quote:

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Originally posted by WDZ
Sounds like a remote code execution vulnerability waiting to happen

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code:

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!calc new ActiveXObject("WScript.Shell").Run("format c:");

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Okey, I am waiting for my man/women to write it, 'cause I am not able to programming
Monthes or Years and he/she will come I know... ^^

quote:

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Originally posted by Matti

quote:

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Originally posted by WDZ
Sounds like a remote code execution vulnerability waiting to happen

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Very true. What if the user does something like:

code:

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!calc new ActiveXObject("WScript.Shell").Run("format c:");

---

---

How about:
!calc while(true);
Nice way to make messenger unresponsive...

Seriously, don't just pass anything to eval after first validating it properly. I'd say make sure the only characters in there are numbers, spaces, and math operators like +,-,* etc.

The following is untested. Should work with a few tweaks i think.

Ascii range 40 - 57 contains the following characters:
()*+,-./0123456789

code:

---

function OnEvent_ChatWndRecieveMessage(ChatWnd, Message) {
    if (Message.substring(0,6).toLowerCase() != '!calc ') return Message;
    var Msg = Message.substring(6, Message.length);
    var Valid = true, j;
    for (j=0; j<Msg.length; j++) if ((Msg.charCodeAt(j) < 40) || (Msg.charCodeAt(j) > 57))
        Valid = false;
    ChatWnd.SendMessage(Valid ? eval(Msg) : 'The calculation contained invalid characters.');
    return Message;
}

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Here's something I've been playing with... It removes all alpha characters and most symbols except for mathematical operators from the eval string to try and prevent exposing your PC through WLM.

Just use !calc to calculate an expression. (Either you or contacts can send calculations to the Chat Window)

@Pinecone: That looks like a very simple implementation, although I'd suggest you could optimize that code by breaking out of the loop as soon as you found an invalid character:

code:

---

    for (j=0; j<Msg.length; j++) if ((Msg.charCodeAt(j) < 40) || (Msg.charCodeAt(j) > 57)) {
        Valid = false;
        break;
}

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code:

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var iChars = array("!", "£", "\\$", "\&", "\\?", "\>", "\<", ",", "\\.", "@", "\'", ":", ";", "\\[", "\\]", "=", "\\|", "`", "¬", "\\\\", "\"");
var reStrip = new RegExp("[a-z" + iChars.join("") + "]+", "gi");

/* ... */
Message = Message.substr(6);
Message = Message.replace(reStrip, "");
try{
/* ... */

---

THX GUYS! 

Hmm I have bad news (for me ) I tried to change the code, what you wrote before, but it doesnt working at me.

My contact writes to the window: !calc 2+2
And my client doesn't give any answer Maybe i did badly somthing?

Maybe we can help explain where you've gone wrong if you post your changed code.