Zugg Software :: View topic - Setting one session's variable to an item from another array

Novice Joined: 19 Nov 2006 Posts: 40

All of my sessions have a variable @Mob that I want to set using an array from one of the sessions.

One character has a variable called MobList and a variable called MobNumber. When I try this command:

:Mob = %item( @MobList, @MobNumber)

the current session sets the Mob variable appropriately, but the other sessions set Mob to an empty value. I'm assuming this is because the other sessions do not have access to MobList or MobNumber. How can I send the value of %item across to the other sessions?
In contrast to these results, I have an alias called MobIs which successfully sets the Mob variable for everyone.

:Mob = %1

Does anyone know how to resolve my issue? (other sessions not receive data from %item results)
Does anyone know why a wildcard appendage to an alias works, but using %item does not?

Posted: Sun Dec 31, 2006 11:12 am

The reason the alias works is because the %1 is expanded before the command is run, so the sessions don't see %1, they see the parameter you entered.

Try using <> or [] to cause the %item to be evaluated immediately.

Novice Joined: 19 Nov 2006 Posts: 40

That explains why %1 works, thanks.

However, I tried your suggestion but was unable to resolve my issue.

:Mob = %item( @MobList, @MobNumber)
Here, Mob is set to an empty value

:Mob = <%item( @MobList, @MobNumber) >
Here, Mob is set to < > (empty value surrounded by < >)

:Mob = [%item( @MobList, @MobNumber)]
Here, I get syntax error

:Mob = %expand(%item( @MobList, @MobNumber)
Here, Mob is set to an empty value

:Mob = %expand(%item( @MobList, @MobNumber), 1)
Here, Mob is set to an empty value

:Mob = %expand(%item( @MobList, @MobNumber), -1)
Here, Mob is set to an empty value

I was unable to find documentation to properly explain the many uses of [ ] and < > in their entirety. Could someone point me in the right direction? Perhaps if I understood the purpose of these characters I could understand why I may have misused them in this situation.

SubAdmin Joined: 18 Nov 2001 Posts: 5182

The correct way to do this is with #EXECUTE and #ALL
#EXECUTE {%concat("#ALL Mob=",%item(@MobList,@MobNumber))}

Novice Joined: 19 Nov 2006 Posts: 40

Winner!

I'll go read up on #EXECUTE, %concat, and #ALL to see why this statement interprets %item immediately rather than sending it to other sessions before interpreting.

Thanks!