Space before/after combinations + centring

17 Nov 2021

      Hi!

I'm in the process of converting some projects to LMTX. Combinations
lacking “”before” and “after” keys (that place content before/after
the *entire* combination, rather than the individual cell pairs), I
came up with the following ugliness – which worked for longer than
it deserved:

\unprotect

\unexpanded\def\startcombination
  {\blank[halfline]%%
   \startalignment[middle]%%
   \dontleavehmode
   \bgroup
   \pack_combinations_push
   \dodoubleempty\pack_combinations_start}

\unexpanded\def\stopcombination
  {\bgroup\normalexpanded{\egroup{}\ntimes{{}{}}\c_pack_combinations_y}% brr
   \dostoptagged
   \egroup
   \pack_combinations_pop
   \egroup
   \stopalignment
   \goodbreak\blank[halfline]}

\protect

\starttext
  \startcombination [2*2]
    \startcontent foo \stopcontent \startcaption 1 \stopcaption
    \startcontent bar \stopcontent \startcaption 2 \stopcaption
  \stopcombination
\stoptext

I added vertical spacing and mid-aligned the content without having
to change the sources, that was the idea. However, this fails in
LMTX:

  Undefined control sequence \pack_combinations_start

Does LMTX offer finer control over the combinations or do I have to
rewrite the sources files (to either use floats or surround the
combinations with the required commands)?

Marco

LMTX: current version: 2021.11.16 22:36

Marco Patzer

Wolfgang Schuster

Marco Patzer

Hans Hagen

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participants (3)