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Date: Fri, 31 Jul 2015 21:44:26 +0200
From: Per Sandberg <per.s.sandberg@bahnhof.se>
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Subject: Re: Running a preprocessor from GPS?
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Date: 2015-07-31T21:44:26+02:00
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Why muck around, and why not just use the simple "pragma debug":

   pragma debug(Trace (Me,"Performing Step " & Step(...)));

in accordance with the "top secret"  users guide ??


Den 2015-07-27 16:28, EGarrulo skrev:
> I would like to add logging statements to my units.  By using GNATColl.Traces, I could add lines like this one:
>
> if Active (Me) then
>     Trace (Me, "Performing Step " & Step(...));
> end if;
>
> However, this is too verbose.  I could write all the three statements onto a single line, but that wouldn't be able to use the "Pretty Print" function of GPS.  Therefore, I must find a way to use a preprocessor macro -- instead -- that lets me write a statement like this one:
>
>     TRACE (Me, "Performing Step " & Step(...));
>
> Now, it seems to me that `gnatprep`  only lets you define symbol macros, not function macros, therefore `gnatprep` cannot be used here.  Is this correct?  If it is, then I must use another processor (like `m4`, for example).  But, how can I integrate an external preprocessor in GPS so that `Build` and `Build All` will perform macro expansion before compilation?  Thank you.
>