#1076648 aephea: causes groff warning "cannot select font 'C'" when using \verbatim{ } or \tt{ }

Package:
aephea
Source:
aephea
Submitter:
Joost van Baal-Ilić
Date:
2024-10-13 05:09:01 UTC
Severity:
normal
#1076648#5
Date:
2024-07-20 18:11:15 UTC
From:
To:
Hi *,

When using \verbatim{stuff} or \tt{stuff} in an .azm file, the roff output
features

.nf \fC
stuff
.fi \fR

or

\fC stuff \fP

.  It seems that's not valid roff; lots of details are available from
https://savannah.gnu.org/bugs/index.php?64594 'bug #64594: [troff] "warning:
cannot select font 'C'"' .  Trying to select the 'C' font in roff source causes

 LC_ALL=C.UTF-8 \
  MANROFFSEQ='' MANWIDTH=80 man --warnings -E UTF-8 -l -Tutf8 \
  -Z man/uruk.8 >/dev/null

(or just

 groff -t -e -mandoc -Tutf8 man/uruk.8

) to emit

 troff:<standard input>:37: warning: cannot select font 'C'

; I've read (also in https://savannah.gnu.org/bugs/index.php?64594 ) it's
better to use

.EX
stuff
.EE

I believe changing the code around aephea/mac/aephea/base.zmm , line 118

   116  {vq#1}      {'\v{\1}'}
   117  {m#1}       {\@{\\fC}\1\@{\\fP}}
   118  {tt#1}      {\@{\\fC}\1\@{\\fP}}
   119
   120  {ftinc#2}   {\@{\\s+\1}\2\@{\\s-\1}}

would be one way to fix it.

I've seen the warning emitted with man-db 2.12.1-2 and groff 1.23.0-5
(man-db 2.11.2 and groff 1.22.4 do _not_ emit the warning).

I didn't do all possible testing myself yet.  Might get to it, one day.

Stijn/upstream (Bcc-d): what do you think?

Bye,

Joost
#1076648#10
Date:
2024-07-21 20:09:02 UTC
From:
To:
Thanks, this is interesting (and comprehensive). From the above it seems
that
.EX
stuff
.EE
dropped in the place mentioned will be sufficient to fix this, which of
course I'm happy to do. I'll first follow the link and test the proposed
fix, this may take between one and a few weeks. If this is inconveniently
slow for some reason let me know, then I can be quicker.

Best wishes,
Stijn
#1076648#15
Date:
2024-07-22 05:41:54 UTC
From:
To:
Hi Stijn,

Excellent, thanks a lot!

BTW, I am not quite sure if, from \tt{stuff} one should generate .EX ; we
currently generate "\fC stuff \fP" which is wrong.  I haven't found a good
solution for this one yet.  (Generating .EX / .EE from verbatim{stuff} indeed
sounds good to me.)

(To have your response appear at https://bugs.debian.org/1076648 , you can mail
to 1076648@bugs.debian.org ; I just resent your response below to that
address.)

Bye,

Joost
#1076648#20
Date:
2024-10-13 05:04:01 UTC
From:
To:
Hi again Stijn,

*ping* ?

BTW, if you prepare a patch, or a .tar.gz, I am happy to do some testing.

C U!

Bye,

Joost