Re: \dorecurse and \recurselevel in Natural Tables

[Wolfgang Schuster <schuster.wolfgang@googlemail.com>]

Am 06.03.2009 um 04:05 schrieb Aditya Mahajan:

> My summary of this thread:
> http://randomdeterminism.wordpress.com/2009/03/05/tex-programming-the-past-the-present-and-the-future/

Nice article but I have a few corrections for you.


Table setup:

To achieve horizontal and vertical centered content in the table cell
you need 'align={middle,lohi}'.


Pure table code:

You forgot the \bTR and \eTR before and after each row.


Expandafter solution:

You don't need as many \expandafter as you did in your example,
one before \bTD in each loop is enough.

\bTABLE
  \bTR
   \bTD $(+)$ \eTD
   \dorecurse{6}
    {\expandafter \bTD \recurselevel \eTD}
   \eTR
\dorecurse{6}
  {\bTR
      \edef\firstrecurselevel{\recurselevel}
      \expandafter\bTD \recurselevel \eTD
   \dorecurse{6}
     {\expandafter
      \bTD
       \the\numexpr\firstrecurselevel+\recurselevel\relax
      \eTD}
   \eTR}
\eTABLE


\for loop:

If you really want to show this loop you also the correct
commands to access the counters. #1 did also work but only
because the command is wrapped around \dostepwiserecurse.

\bTABLE
   \bTR
     \bTD $(+)$ \eTD
     \for \y=1 \to 6 \step 1 \do
       {\bTD \y \eTD}
   \eTR
   \for \x=1 \to 6 \step 1 \do
   {\bTR
      \bTD \x \eTD
     \for \y=1 \to 6 \step 1 \do
     {\bTD \the\numexpr\x+\y \eTD}
   \eTR}
\eTABLE


Thank you for the article and I'm looking forward for the next.

Best regards,
Wolfgang

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