* Loading lua file.
@ 2012-12-13 0:43 Andre Caldas
2012-12-13 2:01 ` Philipp Gesang
0 siblings, 1 reply; 4+ messages in thread
From: Andre Caldas @ 2012-12-13 0:43 UTC (permalink / raw)
To: ConTeXt users
If I load a lua file from a module using
\registerctxluafile{file}{1.001}
or
\ctxloadluafile{file}
How can I be sure the file was in fact loaded? Can I make ConTeXt halt
and issue an error in this case?
Cheers,
André Caldas.
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* Re: Loading lua file.
2012-12-13 0:43 Loading lua file Andre Caldas
@ 2012-12-13 2:01 ` Philipp Gesang
2012-12-13 14:52 ` Andre Caldas
0 siblings, 1 reply; 4+ messages in thread
From: Philipp Gesang @ 2012-12-13 2:01 UTC (permalink / raw)
To: mailing list for ConTeXt users
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Hey André,
···<date: 2012-12-12, Wednesday>···<from: Andre Caldas>···
> If I load a lua file from a module using
> \registerctxluafile{file}{1.001}
> or
> \ctxloadluafile{file}
> How can I be sure the file was in fact loaded?
The related tracker output is quite comprehensive:
\enabletrackers[resolvers.locating]
\ctxloadluafile{sometest}
it does not make Context terminate on fail, though.
> Can I make ConTeXt halt
> and issue an error in this case?
the macros you cite don’t offer this behavior but you can easily
write a wrapper for the file loader:
% macros=mkvi
\def\strictload[#fname]{%
\directlua{
local success = environment.loadluafile[[#fname]]
if not success then
print[[unrecoverable error: could not load file #fname]]
os.exit(1)
end
}%
}
\starttext
\strictload[unknown]
\stoptext
Hth
Philipp
> Cheers,
> André Caldas.
> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to the Wiki!
>
> maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
> webpage : http://www.pragma-ade.nl / http://tex.aanhet.net
> archive : http://foundry.supelec.fr/projects/contextrev/
> wiki : http://contextgarden.net
> ___________________________________________________________________________________
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___________________________________________________________________________________
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___________________________________________________________________________________
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* Re: Loading lua file.
2012-12-13 2:01 ` Philipp Gesang
@ 2012-12-13 14:52 ` Andre Caldas
2012-12-14 9:56 ` Procházka Lukáš Ing. - Pontex s. r. o.
0 siblings, 1 reply; 4+ messages in thread
From: Andre Caldas @ 2012-12-13 14:52 UTC (permalink / raw)
To: mailing list for ConTeXt users
Hello, Philipp!
>> If I load a lua file from a module using
>> \registerctxluafile{file}{1.001}
>> or
>> \ctxloadluafile{file}
>> How can I be sure the file was in fact loaded?
>
> The related tracker output is quite comprehensive:
>
> \enabletrackers[resolvers.locating]
> \ctxloadluafile{sometest}
Nice! Thank you.
In my case, it was not being loaded because I had syntax errors in the
lua file. The file was found, but not loaded. I guess it is a very
good reason to halt!
Cheers,
André Caldas.
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage : http://www.pragma-ade.nl / http://tex.aanhet.net
archive : http://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
___________________________________________________________________________________
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Loading lua file.
2012-12-13 14:52 ` Andre Caldas
@ 2012-12-14 9:56 ` Procházka Lukáš Ing. - Pontex s. r. o.
0 siblings, 0 replies; 4+ messages in thread
From: Procházka Lukáš Ing. - Pontex s. r. o. @ 2012-12-14 9:56 UTC (permalink / raw)
To: mailing list for ConTeXt users
Hello,
I'm using this if loading failure is not fatal:
----
DoFile = function(fn)
return pcall(function() return dofile(fn) end)
end
DoFile("MyFile.lua") -- instead of 'dofile("MyFile.lua")'
----
You can play with handling error code (http://www.lua.org/manual/5.1/manual.html#pdf-pcall):
----
DoFile = function(fn)
local suc, res = pcall(function() return dofile(fn) end)
if suc then return res
else
-- Your handling code to come here
end
end
----
Best regards,
Lukas
On Thu, 13 Dec 2012 15:52:03 +0100, Andre Caldas <andre.em.caldas@gmail.com> wrote:
> Hello, Philipp!
>
>>> If I load a lua file from a module using
>>> \registerctxluafile{file}{1.001}
>>> or
>>> \ctxloadluafile{file}
>>> How can I be sure the file was in fact loaded?
>>
>> The related tracker output is quite comprehensive:
>>
>> \enabletrackers[resolvers.locating]
>> \ctxloadluafile{sometest}
>
> Nice! Thank you.
> In my case, it was not being loaded because I had syntax errors in the
> lua file. The file was found, but not loaded. I guess it is a very
> good reason to halt!
>
>
> Cheers,
> André Caldas.
--
Ing. Lukáš Procházka [mailto:LPr@pontex.cz]
Pontex s. r. o. [mailto:pontex@pontex.cz] [http://www.pontex.cz]
Bezová 1658
147 14 Praha 4
Tel: +420 244 062 238
Fax: +420 244 461 038
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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wiki : http://contextgarden.net
___________________________________________________________________________________
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2012-12-13 2:01 ` Philipp Gesang
2012-12-13 14:52 ` Andre Caldas
2012-12-14 9:56 ` Procházka Lukáš Ing. - Pontex s. r. o.
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