[translations] Use of variables in t()

[Derek Wright]

In the D6 API docs for t(), it says:

http://api.drupal.org/api/function/t/6
> The only case in which variables can be passed safely through t() is  
> when code-based versions of the same strings will be passed through  
> t() (or otherwise extracted) elsewhere.
...

I have a few questions about this:

A) The D5 docs don't say the same thing.  However, this seems like the  
sort of thing that would be equally true of t() in both branches,  
unrelated to all the i18n changes in D6.  Can someone confirm that t()  
didn't change in D6 to allow for this edge-case, but only that the API  
docs improved?

B) I seem to have an example in one of my contribs where this edge  
case is being hit.  Once I add t($foo) to my code (where all possible  
values of $foo are listed via t() around string literals elsewhere in  
the code), potx.php starts throwing error messages about "Invalid  
marker content ...".  Is there anything I can do to tell potx "yes, I  
know, but this is that edge case where it's ok, please shut up  
again"? ;)


Thanks,
-Derek (dww)