[NTG-context] feature request: \everytrypass

[Peter Rolf]

Vit Zyka wrote:
> Dear ConTeXters,
> 
> I am counting occurence of some macro in the text. Problem is when this 
> macro is inside \bTABLE (and may be somewhere else). Due to try passes 
> the increment is counter is incremented more then once and the result is 
> multiplied.
> 
> It is possible to implement some \everytrypass in which user can (e.g.) 
> null incrementing? Or there is some another solution?
> 
> Thanks
> Vit
> 
> Minimal example:
> -----------------------------------------------
> \newcount\C
> \def\doIncrement{\global\advance\C by1\relax}

\def\doIncrement{\iftrialtypesetting
  \else\global\advance\C by1\relax\fi}%

donno if this works correctly inside a TABLE...


Greets, Peter

> 
> % \def\nullIncrement{\let\doIncrement\relax}
> % \appendtoks \nullIncrement to \everytrypass
> 
> \starttext
>    \bTABLE
>      \bTR\bTD Counter\doIncrement\eTD\eTR
>    \eTABLE
>    \message{ <<Counter=\the\C>> }%
> \stoptext
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