Re: def with if..else fails in TABLE

[Hans Hagen <pragma@wxs.nl>]

Vit Zyka wrote:

>
> I did not test but my opinion is:
>
> - \if*argument is set in the \do*empty
>
> - \bTR, \eTR has optional params so they also use \do*empty
>
> - using test \if*argument AFTER \bTR, \bTD, ... is related to the 
> \bTR, ... number of arguments not to the \TestCmd.

your opinion is right 

also, make sure that the if else fi don't span arguments (unless you know what you're doing), so: 

\bTD \iftrue \eTD \bTD \fi \eTD 

kind of things are tricky for instance when \bTD .. \eTD is defined as 

\def\bTD#1\eTD{...} 

conditionals are parsed in special ways in tex the program (speed optimiziation) 

Hans 



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