Re: [eclipse-clp-users] Finding the ECLiPSE startup directory

From: Paulo Moura <pmoura_at_...16...>
Date: Tue, 17 Mar 2009 10:54:48 +0000
On 2009/03/17, at 09:48, Joachim Schimpf wrote:

> Paulo Moura wrote:
> ...
>>
>> Allow me to briefly describe the problem I'm trying to solve. When
>> starting up Logtalk (using ECLiPSE as the back-end Prolog compiler),
>> the startup (Prolog) script looks into the current directory for a
>> settings file.
>
> If Logtalk were an ECLiPSe library module it could contain a directive
> :- export initialization(load_settings_file).
> When a user imports/use_module/libs this module, load_settings_file/0
> gets executed in the original current directory, which is what you  
> want.
>
> But I think you can't use this trick because logtalk is not a module.
> Please don't use :- local initialization() instead - it currently
> works as above (as long as the file isn't pre-compiled), but I'd
> consider this a bug, so don't rely on it please.
>
> I suppose we could introduce a global setting analogous to  
> get_flag(cwd,D)
> that returns the startup directory.  But, as Kish said, you can start
> eclipse (via script or shortcut) with a -e option to save the startup
> directory yourself:   eclipse -e "getcwd(D),setval(startup_cwd,D),..."


Using the -e option could work if it's possible to call a predicate  
that will start an interactive toplevel session (the -e option would  
be used with a -b option that loads Logtalk). However, I cannot find  
such a predicate in the documentation.

Cheers,

Paulo


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Paulo Jorge Lopes de Moura, PhD
Assistant Professor
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Received on Tue Mar 17 2009 - 10:55:06 CET

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