* Testing non-existent counter in Lua
@ 2010-06-21 21:41 Jaroslav Hajtmar
2010-06-22 5:55 ` Taco Hoekwater
0 siblings, 1 reply; 4+ messages in thread
From: Jaroslav Hajtmar @ 2010-06-21 21:41 UTC (permalink / raw)
To: mailing list for ConTeXt users
Hi, all.
How do I know (due Lua) that the counter has not been defined in ConTeXt
(through the command newcount)?
I am trying testing :
if tex.count.mycount == nil then...
or
if tex.count.mycount == 'error' then...
then when counter isnt defined due \newcount\mycount, then test ending
with error message.
When counter is defined due
\newcount\mycount,
\mycount=1
then test
if tex.count.mycount == 1 then...
is OK...
Thanx, Jaroslav
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^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Testing non-existent counter in Lua
2010-06-21 21:41 Testing non-existent counter in Lua Jaroslav Hajtmar
@ 2010-06-22 5:55 ` Taco Hoekwater
2010-06-22 6:35 ` Jaroslav Hajtmar
0 siblings, 1 reply; 4+ messages in thread
From: Taco Hoekwater @ 2010-06-22 5:55 UTC (permalink / raw)
To: hajtmar, mailing list for ConTeXt users
Jaroslav Hajtmar wrote:
> Hi, all.
>
> How do I know (due Lua) that the counter has not been defined in ConTeXt
> (through the command newcount)?
>
> I am trying testing :
>
> if tex.count.mycount == nil then...
>
> or
>
> if tex.count.mycount == 'error' then...
>
> then when counter isnt defined due \newcount\mycount, then test ending
> with error message.
>
> When counter is defined due
> \newcount\mycount,
> \mycount=1
>
> then test
> if tex.count.mycount == 1 then...
if token.command_name(token.create('mycount')) == 'assign_int'
and tex.count.mycount == 1 then
...
end
Best wishes,
Taco
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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/
wiki : http://contextgarden.net
___________________________________________________________________________________
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Testing non-existent counter in Lua
2010-06-22 5:55 ` Taco Hoekwater
@ 2010-06-22 6:35 ` Jaroslav Hajtmar
2010-06-22 8:39 ` Taco Hoekwater
0 siblings, 1 reply; 4+ messages in thread
From: Jaroslav Hajtmar @ 2010-06-22 6:35 UTC (permalink / raw)
To: Taco Hoekwater; +Cc: mailing list for ConTeXt users
Thanx Taco,
can I learn about these things somewhere read more? I tried
luatexref-t.pdf and I didnt in fact guided.
Thanx Jaroslav
Dne 22.6.2010 7:55, Taco Hoekwater napsal(a):
> Jaroslav Hajtmar wrote:
>> Hi, all.
>>
>> How do I know (due Lua) that the counter has not been defined in
>> ConTeXt (through the command newcount)?
>>
>> I am trying testing :
>>
>> if tex.count.mycount == nil then...
>>
>> or
>>
>> if tex.count.mycount == 'error' then...
>>
>> then when counter isnt defined due \newcount\mycount, then test
>> ending with error message.
>>
>> When counter is defined due
>> \newcount\mycount,
>> \mycount=1
>>
>> then test
>> if tex.count.mycount == 1 then...
>
> if token.command_name(token.create('mycount')) == 'assign_int'
> and tex.count.mycount == 1 then
> ...
> end
>
> Best wishes,
> Taco
>
>
___________________________________________________________________________________
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
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2010-06-21 21:41 Testing non-existent counter in Lua Jaroslav Hajtmar
2010-06-22 5:55 ` Taco Hoekwater
2010-06-22 6:35 ` Jaroslav Hajtmar
2010-06-22 8:39 ` Taco Hoekwater
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