Re: [Groff] Question about .trunc

[Tadziu Hoffmann]

If you request a certain amount of vertical space,

  .sp <wantedspace>

and the distance to the next trap (available in register .t)
is smaller than this, the trap is sprung and .trunc is set to

  <wantedspace> - <distance-to-trap>

i.e., the amount truncated (not output) from <wantedspace>.
(See attached example; use -Tps and paper size a4.)

It's interesting to note that at end-of-file, groff appears
to do the equivalent of

  .sp <pagelength>

judging from the value of .trunc when the footer trap is sprung.

trunc.ro
Description: Text document