> Nevertheless, I think it would be better then to store both
> a tmac.<foo>-raw file and a preprocessed tmac.<foo>.
>From what I've read, the old Bell Labs [nt]roff had an option
to read macro files in a sort of "compiled" version (to reduce
startup time), so if one used this feature it would have been
useful to install the compiled version of the *preprocessed*
macro file. But this is probably irrelevant for groff.
> Maybe a convention similar to that used for man pages --
> list required preprocessors on the first line of the source
> in a comment -- would be better?
Interesting that you mention this, because that's exactly
what I usually do (inspired by man, of course). That is,
I have a shell script "myroff" [*] which reads the first
line of the input file, interprets it as options, and calls
groff accordingly (and also opens/refreshes the gv window
with the output). You could also use this shell script as
a replacement for the "driver" program groff and build your
own pipeline with it instead.
(It goes without saying that such a script is of course
permanently under construction.)
[*] which, by the way, is bound to <F1> in Vim via
au BufNewFile,BufRead *.ro map <buffer> <F1> :up<CR>:!myroff "%"<CR><CR>
in my .vimrc (my *roff files are recognized by a ".ro"
(for "runoff") extension).
#!/bin/bash
# set -x
trap "" 1
roff="$1"
post=`dirname "$1"`/`basename "$1" .ro`.ps
view="gv --nowatch"
# groff="$HOME/comp/src/groff-cvs/groff/test-groff -P -F$HOME/lib/roff/font"
groff=groff
# GROFF_FONT_PATH=$HOME/lib/fonts/DIT-edited:$HOME/lib/fonts/DIT-generated
GROFF_FONT_PATH=$HOME/lib/roff/font
export GROFF_FONT_PATH
refresh(){
test -z "$1" && { $view "$post" & } || kill -HUP $1
}
opt=""
sort="no"
manual="false"
duplex="true"
read comment options <"$roff"
for option in $options
do
case $option in
soelim) opt="$opt -s";;
tbl) opt="$opt -t";;
eqn) opt="$opt -e";;
pic) opt="$opt -p";;
refer) opt="$opt -R";;
man) opt="$opt -man";;
mdoc) opt="$opt -mdoc";;
ms) opt="$opt -ms";;
me) opt="$opt -me";;
mm) opt="$opt -mm";;
mom) opt="$opt -mom";;
unsafe) opt="$opt -U";;
land) opt="$opt -P -l";;
a5) opt="$opt -P -pa5";;
b5) opt="$opt -P -pb5";;
c6) opt="$opt -P -pc6";;
-p*) opt="$opt -P $option";;
# manual) opt="$opt -P -m";;
manual) manual="true";;
simplex) duplex="false";;
resort) sort="yes";;
*) echo "unknown option \"$option\"";;
esac
done
if test "$sort" = "yes"
then
"$groff" -ww -b -Tps $opt -Z "$roff" |
sed -f $HOME/lib/roff/resort.sed |
grops |
sed -e "/%%BeginFeature: \*PageSize Default/,/%%EndFeature/d
/^%%EndSetup$/i\
<< /Duplex $duplex /ManualFeed $manual >> setpagedevice" \
>"$post"
rm troff.sort
else
"$groff" -ww -b -Tps $opt "$roff" |
sed -e "
# 1s/$/ EPSF\\
# %%BoundingBox: 0 0 596 794/
# /%%BeginFeature: \*PageSize Default/,/%%EndFeature/d
/^%%EndSetup$/i\
<< /Duplex $duplex /ManualFeed $manual >> setpagedevice" \
>"$post"
fi
# -- ps output is like "1308677 pts/19 S 0:00.38 gv test.ps" --
# -- first item is PID, used in refresh function as $1 --
# -- [0-9] matches time and is used to exclude the grep process --
pid=`ps x | grep "[0-9] $view $post"`
refresh $pid
