On Mon, 4 Aug 2014 18:06:03 +0200 "Bernd Warken" <groff-bernd.warken...@web.de> wrote:
> The overstrike with `\o' and `\z' preduce on `-Tpdf', etc., a plus
> sign within the digit 0 for both escapes. But both escapes do not
> work on `-Tutf8' or `nroff':
>
> $ echo "A\o'0+'\z0+Z" | nroff
> A++Z
>
> which is wrong.
Bernd,
If you redirect nroff's output to a file, I think you'll find that
it's doing what it's supposed to be doing. I tried your example in a
terminal and got the same results you did. Redirecting the output to
a file and looking at it with Emacs gave me the following string:
"A0^H+0^H+Z". So nroff is overstriking, using backspaces to do so.
Unfortunately, the terminal only displays the most recent characters
in any one position. If I'm not mistaken (and I may well be), it's
the man program that tells the terminal to overstrike. I think.
(I have a decades-old memory of looking at formatted man pages with an
editor, and seeing runs of "x^Hx" for bolded, and "y^H_" for
underlined characters.)
--Dale
--
"Text processing has made it possible to right-justify any idea,
even one which cannot be justified on any other grounds."
-- J. Finnegan, USC.
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