Am 30.09.2010 um 20:40 schrieb Jaroslav Hajtmar:
> Hello my wise masters of the Force and teachers of Jedi...
>
> It seems that my first module (SCANCSV of scancsv.lua library of CTM in
> Brejlov) work without any visible errors (without
> documentation and with a junkyard yet), but I'm not sure whether is there a
> hidden problem or future collisions. Therefore I have a few of questions for
> modules namespaces, luacode namespaces etc. I want to ask how relates a
> namespace ConTeXt module with
> namespace of Lua code, which is listed within this module and others
> questions.
>
> 1. Is the namespace of Lua code independent of the namespace module?
Yes.
> 2. If are ConTeXt macros defined in the module, are automatically in its
> namespace?
No, the namespace in a module is only for keys and key-value-lists. When you
write a command with the same name as a core command the core definition is
overwritten and lost.
> 3. Can both namespaces (module and Luacode) somehow connected?
You can try to use the same namespace in TeX and Lua but thats up to you.
> 4. What happens when I have two macros with the same name in two different
> modules?
The last definition is the current meaning of the command, e.g. in this example
the command \befehl has the content “Befehl” because it’s the last defintion.
\def\befehl{command} % \befehl has not the content “command”
\def\befehl{Befehl} % \befehl has now the content “Befehl” and the content of
the first definition is lost
> 5. Can I call the macros of the same names in different namespaces (diferent
> modules)?
When you call them inside of a environment it’s possible.
\def\startenvone{\bgroup\def\befehl{command}}
\def\stopenvone {\egroup}
\def\startenvtwo{\bgroup\def\befehl{befehl}}
\def\stopenvtwo {\egroup}
\starttext
\startenvone \befehl \stopenvone % \befehl == “command”
\startenvtwo \befehl \stopenvtwo % \befehl == “befehl”
\stoptext
> 6. Can I read about somewhere more?
- The programming pages on the wiki.
- A book about plain TeX {e.g. The TeXbook, TeX by Topic, TeX for the Impatient
etc.)
> 7. I enclose below a minimal example of the module (I do not know why there
> are some things) to comment or write yours comments and suggestions, etc.
Give me some time to write a detailed description of the \definenamespace
command.
Wolfgang
___________________________________________________________________________________
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
___________________________________________________________________________________
