🚀 go-pugleaf

| I'm looking for a macro to automatically number lines on pages,
| using TeX not LaTex, for editorial purposes.  Each page would
| have 55 consecutively numbered lines.

There are probably many ways of doing this.  Assuming all lines are
exactly the same height, the following seems to work satisfactorily:

\baselineskip=11.9pt
\parskip=11.9pt
\vsize=652.59967pt
\parindent=0pt
\newcount\linenum
\newbox\linenumbox
\setbox\linenumbox\vbox{\kern26.5pt \loop\advance\linenum by 1
         \hbox{\number\linenum}\ifnum\linenum<55 \repeat\vss}

\headline{\hbox to 0pt{\kern -20pt\copy\linenumbox\hss}\hss}

This is a line

This is a line

This is a line

This is a line

This is a line

This is a line

This is a line

This is a line

This is a line

This is a line

This is a line

This is a line
\bye

Michael Barr