On 11/27/2013 5:42 PM, Adam Khan wrote:
The lines of a tabulate cell may be numbered with code like the following under 
Mark II, but not under Mark IV.

\starttabulate[|p|p|]
\NC
\input knuth
\NC
\startlinenumbering
\input knuth
\stoplinenumbering
\NC\NR
\stoptabulate

How may the lines of a tabulate cell be numbered under Mark IV?

put this in your cont-new.mkiv file:

\unprotect

\installtexdirective
  {tabulate.linenumbers}
  {\def\tabl_tabulate_check_linenumbers
     {\page_postprocessors_linenumbers_deepbox\b_tabl_tabulate}}
  {\let\tabl_tabulate_check_linenumbers\relax}

\let\tabl_tabulate_check_linenumbers\relax

\def\tabl_tabulate_splitoff_box
  {\dontcomplain
   \global\setbox\b_tabl_tabulate\vsplit
     \b_tabl_tabulate_current\c_tabl_tabulate_column
     to \lineheight
   \setbox\b_tabl_tabulate\vbox
     {\unvbox\b_tabl_tabulate}%
   \ifconditional\c_tabl_tabulate_splitoff_whitespace
     \tabl_tabulate_check_whitespace
   \fi
   \tabl_tabulate_color_repeat
   \setbox\b_tabl_tabulate\hbox to \wd\b_tabl_tabulate
     {\hss\tabl_tabulate_hook_yes{\box\b_tabl_tabulate}\hss}%
   \tabl_tabulate_normalize_splitline
   \tabl_tabulate_check_linenumbers
   \box\b_tabl_tabulate}

\protect

if it works ok you can wikify it as for sure i forget about it

\starttext

\enabledirectives[tabulate.linenumbers]

\startmixedcolumns
    \startlinenumbering
        \input ward
    \stoplinenumbering
    \column
    \startlinenumbering
        \input knuth
    \stoplinenumbering
\stopmixedcolumns

\starttabulate[|p|i3p|]
    \NC
        \startlinenumbering
            \input ward \par
        \stoplinenumbering
    \NC
        \startlinenumbering
            \input knuth \par
        \stoplinenumbering
    \NC
    \NR
\stoptabulate

\stoptext

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