On Mon, Nov 15, 2021, Ulrich Lauther wrote: > .de Pos > \R'foo (\\n[.d]-\\n[.v]*254+1)/72000'\\n[foo]mm/10 > .. > > which allows you to enter > > position: \n[.d] units, \*[Pos]. >
> > Wow! Works nicely. > > > > And I had to add a line ".sp -1v" at the end of the macro; otherwise I get > > a > > blank line after position: ... > > > > I now found out that the space between "foo" and the openening > bracket causes the unintended blank line. But why? You shouldn't be seeing a blank line. What's more, removing the space before the opening parens should cause the \R escape to fail with 'troff: <file>:<line>: warning: missing number'. A backtrace points directly to the \R line. I'm mystified. Can you send a small example exhibiting the problem (input and output) along with your groff command line? -- Peter Schaffter https://www.schaffter.ca
