Hello,
>> For checking variable definition, I would suggest to extend the variable
>> access syntax so that there is no exception to the one thing rule between
>> client side and server side evaluation:
>
>> \if :?variable
>
> Don't like that one bit;
Possibly:-)
This is kind of a shell-like hack ${VAR:?error-message-if-not-defined},
or ${#VAR} to get a length.
They are not likable but they do the job.
> you're going to run out of namespace there in no time.
I do not undestand where there would be a namespace issue. Is that under
the assumption that ":?xxx" is frequently used in SQL?
> And you don't have a very good way to say "if not defined", either.
Indeed. I'm afraid that handling "NOT" client-side would be necessary with
this approach, so the decision would be 1 thing or 2 things where the
first one is "NOT" would be handled client-side.
--
Fabien.