* \restorecounter ignores first save
@ 2016-08-27 13:41 Wolfgang Schuster
2016-08-28 15:16 ` Hans Hagen
0 siblings, 1 reply; 2+ messages in thread
From: Wolfgang Schuster @ 2016-08-27 13:41 UTC (permalink / raw)
To: mailing list for ConTeXt users
Hi Hans,
the save/restore state for the counter in the example is ignored.
%%%% begin example
\enabletrackers[structures.counters]
\definecounter[test]
\starttext
\incrementcounter[test]
\convertedcounter[test]
\dorecurse{10}
{\savecounter[test]
\incrementcounter[test]
\convertedcounter[test]
\restorecounter[test]
\par}
\stoptext
%%%% end example
The problem is the check for the table size in the counters.restore
function because after the first save the size of the table is 1:
function counters.restore(name)
local cd = counterdata[name]
if not cd then
report_counters("invalid restore, no counter %a",name)
return
end
local saved = cd.saved
if not saved then
-- is ok
elseif #saved > 1 then
cd.data = remove(saved)
else
report_counters("restore without save for counter %a",name)
end
end
Wolfgang
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: \restorecounter ignores first save
2016-08-27 13:41 \restorecounter ignores first save Wolfgang Schuster
@ 2016-08-28 15:16 ` Hans Hagen
0 siblings, 0 replies; 2+ messages in thread
From: Hans Hagen @ 2016-08-28 15:16 UTC (permalink / raw)
To: ntg-context
On 8/27/2016 3:41 PM, Wolfgang Schuster wrote:
> Hi Hans,
>
> the save/restore state for the counter in the example is ignored.
>
> %%%% begin example
> \enabletrackers[structures.counters]
>
> \definecounter[test]
>
> \starttext
>
> \incrementcounter[test]
> \convertedcounter[test]
>
> \dorecurse{10}
> {\savecounter[test]
> \incrementcounter[test]
> \convertedcounter[test]
> \restorecounter[test]
> \par}
>
> \stoptext
> %%%% end example
>
>
> The problem is the check for the table size in the counters.restore
> function because after the first save the size of the table is 1:
>
> function counters.restore(name)
> local cd = counterdata[name]
> if not cd then
> report_counters("invalid restore, no counter %a",name)
> return
> end
> local saved = cd.saved
> if not saved then
> -- is ok
> elseif #saved > 1 then
should be > 0
> cd.data = remove(saved)
> else
> report_counters("restore without save for counter %a",name)
> end
> end
>
>
>
> 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
> ___________________________________________________________________________________
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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
___________________________________________________________________________________
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