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Wizard Joined: 25 Mar 2003 Posts: 1113 Location: USA

I decided to see if I could reference a variable in a specific package and/or class folder. I'm finding that the @/path/var syntax does not produce the expected results. The migration guide gives examples of using #VAR /path/var value to set the value, but there is no mention of how to retrieve a value using a full path specification.

1. In a package named Testing, I made a variable "blah" with value 42.
2. In a package named Tester, I made another variable named "blah" with value 56.
3. In Tester, I made an alias "showblah" to display the values of both variables. It simply does #show "Value is "@/Tester/blah" and also "@/Testing/blah.

From that, I get the output "Value is and also " with no numbers at all. If I just use @blah, I get the value from @Testing, even though the alias is in Tester and there's a variable right beside it there.

Interestingly, the compiled code for the alias looks like this:

Magician Joined: 29 Nov 2005 Posts: 482

Testing with the following structure
PACKAGE -> Default Settings
PACKAGE -> Tracker
ALIAS -> Testing
SUBFOLDER ------->Extender
PACKAGE -> Untitled

Wizard Joined: 25 Mar 2003 Posts: 1113 Location: USA

I think you have the current and root path syntaxes backwards, though it doesn't mean the code works as it should, obviously. The old way was to use . for the root, which is not the standard UNIX way to specify a path. CMUD now uses . for the current folder and / for the root folder.

If your Extender folder is in the Tracker package, shouldn't you have to use @/Tracker/Extender/test to access the variable? I'm not sure if package names are used in the full path or not, but I would expect it to work that way. It would make things a lot easier when designing packages that rely on other packages.

Magician Joined: 29 Nov 2005 Posts: 482

its an old test i used for zmud still use it to make sure certain variables get set properly.
./varname references the varname in the current class and /varname references the varname in the root class now.

Now as to the other part of your message. I am hoping this is something zugg will address.

To me it should be

<ROOT>
-------> Package
-----------> Class/sub package etc.

so yes to me it should be the way you say as well. However right now it appears that it only lives the current default package not as it should be. It doesnt seem to be doing that right now. Hopefully zugg can take a look and make better definement of how that should work as i will use it a lot as well.

Magician Joined: 23 Nov 2004 Posts: 364

i figure i would post this in something about variables. it seems that my aliases that would set variables no longer work, such as: #alias find1 {#var lrooms {};#var prooms {};...} and so on. I get an error about this

Wizard Joined: 25 Mar 2003 Posts: 1113 Location: USA

I would typically use the #var name {} syntax to clear variables, too. CMUD seems to only accept the #var name "" syntax. Not sure yet if that's a bug or a feature of the stricter scripting engine.

Posted: Wed Jul 05, 2006 7:18 pm

Right now, variables can only be referenced within their own package. In other words, @/classname/varname ... there isn't any way to reference variables in another package yet.

In general, packages are supposed to be self-contained...you are not supposed to need to specifically reference something in another package. However, I can certainly see the need for this, so I'll try to think of a way to handle this.

But there is a compatibility issue with zMUD stuff to deal with since zMUD didn't have packages.