Re: Yet another patch (dmd.py this time)

Bram Moolenaar wrote:

> Lars -
> 
> 
>>>For me using $?var when $var was not set is equivalent to use $var when
>>>it is empty.  Thus I don't think the precense of a '?' should matter.
>>
>>Reading the docs more thouroughly, I have to agree.
>>
>>So my conclusion on how I want it:
>>
>>During RC-expansion, the result should be nothing if all expanded
>>variables are empty.
> 
> 
> I would agree with you, except that I can think of a situation where you
> don't want it this way:
> 
> 	LIBS = one two
> 	NOLIBS =
> 	ext = .lib
> 	noext =
> 
> 	:print - lib$*LIBS$ext -
> 	:print - lib$*LIBS$noext -
>         :print - lib$*NOLIBS$ext -
>         :print - lib$*NOLIBS$noext -
> 
> What would you expect to be the result?  I would think this:
> 
> 	- libone.lib libtwo.lib -
> 	- libone libtwo -
> 	- -
> 	- -
> 
> Agreed?
> 
> I think the rule should be that $*var expansion is empty when $var is
> empty.  Whether something follows or not is irrelevant.

Good example. I agree.

Lars Ivar Igesund


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