Re: Custom lua script (updating and debugging)

["Procházka Lukáš Ing. - Pontex s. r. o." <LPr@pontex.cz>]

Hello,

I have also the experience that when the Lua file is placed where the LUA_PATH system variable points (or: see the documentation how exactly LUA_PATH works), than I can use the 'require' command and the Lua file will be found.

E.g.:

LUA_PATH = (...);C:\MyDir\?.lua

C:\MyDir\MyFile.lua:

print("This is MyFile.lua")

And a ctx file:

\startluacode
   require("MyFile")
\stopluacode

- Will print "This is MyFile.lua" to the output stream when converting .tex to (e.g.) .pdf.

Lukas


On Tue, 28 Sep 2010 21:30:32 +0200, Mojca Miklavec <mojca.miklavec.lists@gmail.com> wrote:

> On Tue, Sep 28, 2010 at 12:41, Stefan Müller wrote:
>> Hi list,
>>
>> I'm currently messing around with a custom lua script (a pretty printer) and
>> I have some beginner trouble.
>>
>> First: I put the file in "MyContexDir\tex\texmf\tex\context\base\".
>
> Put them into
>     MyContexDir\tex\texmf-local\tex\context\user\
> because:
> - You need to use texmf-local instead of texmf, else your file might
> be deleted when you update the distribution.
> - It doesn't really matter where the file is as long as it is under
> [TEXMF]\tex\context, but using "user" is somehow more sensible than
> "base".
>
>> What do
>> I have to do to let ConTeXt work with the script and to let ConTeXt know
>> that something has changed in the script? Is "context --generate" enough
>> (after initializing with "setuptex.bat")?
>
> You need to use context --generate only when you add the script for
> the first time. After you modify it, you don't need to do anything
> unless you are changing ConTeXt source. If you change ConTeXt source,
> you need to also run "context --make" (but that would be dangerous
> anyway).
>
>> Second: How can I debug errors in my *.lua file? Just put
>>  print("debug message")
>> in the function that is (supposed to be) called?
>
> Yes, or tex.print (depending on how you want to debug).
>
> Mojca
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-- 
Ing. Lukáš Procházka [mailto:LPr@pontex.cz]
Pontex s. r. o.      [mailto:pontex@pontex.cz] [http://www.pontex.cz]
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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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archive  : http://foundry.supelec.fr/projects/contextrev/
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