Avoidinig globals

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From: Tim (al_at_gahnstrom.se)
Date: 03/07/05 

Date: Mon, 07 Mar 2005 20:14:36 GMT

Is there a way to force a sub to only use global variables when
explicitly told to?

I mean that if I forget to dim a a local variable but there is already
such a variable in the global scope then my function will use the global
variable without me intending it too.

Here is an example:

<html>
   <% Option Explicit
     sub corect()
       Dim var
       var=5
     end sub

     sub wrong()
       var=5
     end sub

     Dim var
     var=2
     response.write(var) 'prints rightly 2
     call corect()
     response.write(var) 'Still prints rightly 2
     call wrong()
     response.write(var) 'Now it prints 5 because I forgott to Dim var
   %>
<html>

I would have liked to be able to declare a Globals Explicit this should
force me to write

     sub wrong()
       global var=5
     end sub

If I wanted wrong to change the behavior of the globaly defined variable
var.

Is there a way to acomplish this in ASP?

Thanks

Tim

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