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#! /bin/sh
# $1 : the source file
# $2 : the preprocessor string
# $3 : the output device (optional)

prog=`basename $0`
prepipe=
postpipe=

for p in `echo "$2" | sed 's/./& /g'`
do
  case $p in
  e) prepipe="$prepipe | /usr/bin/neqn" ;;
  g) echo "$prog: can't preprocess with grap" >&2 ;;
  p) echo "$prog: can't preprocess with pic" >&2 ;;
  t) prepipe="$prepipe | /usr/bin/tbl" ; postpipe="| /usr/bin/col" ;;
  r) prepipe="$prepipe | /usr/bin/refer" ;;
  v) echo "$prog: can't preprocess with vgrind" >&2 ;;
  *) echo "$prog: unknown preprocessor \`$p'" >&2 ;;
  esac
done

case $prog in
  mandb_tfmt) postpipe="| /usr/bin/troff -t ${3+-T$3}" ;;
  *) postpipe="| /usr/bin/nroff ${3+-T$3} $postpipe";;
esac

eval "cat /usr/export/exec/sun4/lib/tmac/tmac.an $1 $prepipe $postpipe"