On 03/18/2014 11:30 PM, Aditya Mahajan wrote:
> On Tue, 18 Mar 2014, Pablo Rodriguez wrote:
>
>> The next one (AFAIK) should work on every OS:
>>
>> \startluacode
>> local user = ""
>> local users = {
>> ["ousia"] = 1,
>> }
>> function document.CheckUser()
>> user = os.resultof("echo ousia")
>> context.verbatim(user)
>> end
>>
>> function document.UserNumber(name)
>> context.verbatim(users[name or user] or 0)
>> end
>> \stopluacode
>>
>> \def\CheckUser {\ctxlua{document.CheckUser ()}}
>> \def\UserNumber{\ctxlua{document.UserNumber()}}
>>
>> \starttext
>> This is user \CheckUser with number \UserNumber.
>> \stoptext
>
> (Untested)
>
> Change `local user` by
>
> ~~~
> userdata = userdata or {}
> userdata.user = ""
> ~~~
>
> and all other occurances of `user` by `userdata.user`.
Many thanks for your reply, Aditya.
I followed your instructions, but I’m afraid that it doesn’t work.
I cannot say whether it is my fault, since this is all Greek to me.
I tried a simpler approach (my guess, I discovered the existence of
\executesystemcommand yesterday), which doesn’t work either:
\def\Checkuser{\executesystemcommand{echo rightuser > tmp-yser.txt}}
\def\CheckUser{\Checkuser\input tmp-yser.txt}
\def\UserNumber{\processaction[\CheckUser][rightuser=>1, unknown=>user
unknown]}
\starttext
This is user \CheckUser\ with number \UserNumber.
\stoptext
I don’t know why the \UserNumber command cannot process action and why
the backslash after \CheckUser is required, since it seems to add an
extra space.
What am I doing wrong in the previous example?
Many thanks for your help,
Pablo
--
http://www.ousia.tk
___________________________________________________________________________________
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
___________________________________________________________________________________
