#! /bin/sh
# Emulate nroff with groff.
#
# Copyright (C) 1992-2014 Free Software Foundation, Inc.
#
# Written by James Clark, maintained by Werner Lemberg.

# This file is of `groff'.

# `groff' is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License (GPL) as published
# by the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.

# `groff' is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.

prog="$0"

# Default device.

# Check the GROFF_TYPESETTER environment variable.
Tenv=$GROFF_TYPESETTER

# Try the `locale charmap' command first because it is most reliable.
# On systems where it doesn't exist, look at the environment variables.
case "`exec 2>/dev/null ; locale charmap`" in
UTF-8)
Tloc=utf8 ;;
ISO-8859-1 | ISO-8859-15)
Tloc=latin1 ;;
IBM-1047)
Tloc=cp1047 ;;
*)
case "${LC_ALL-${LC_CTYPE-${LANG}}}" in
*.UTF-8)
Tloc=utf8 ;;
iso_8859_1 | *.ISO-8859-1 | *.ISO8859-1 | \
iso_8859_15 | *.ISO-8859-15 | *.ISO8859-15)
Tloc=latin1 ;;
*.IBM-1047)
Tloc=cp1047 ;;
*)
case "$LESSCHARSET" in
utf-8)
Tloc=utf8 ;;
latin1)
Tloc=latin1 ;;
cp1047)
Tloc=cp1047 ;;
*)
Tloc=ascii ;;
esac ;;
esac ;;
esac

# `for i; do' doesn't work with some versions of sh

Topt=
opts=
for i
do
case $1 in
-c)
opts="$opts -P-c" ;;
-h)
opts="$opts -P-h" ;;
-[eq] | -s*)
# ignore these options
;;
-[dMmrnoTwW])
echo "$prog: option $1 requires an argument" >&2
exit 1 ;;
-[iptSUC] | -[dMmrnowW]*)
opts="$opts $1" ;;
-T*)
Topt=$1 ;;
-u*)
# Solaris 2.2 through at least Solaris 9 `man' invokes
# `nroff -u0 ... | col -x'. Ignore the -u0,
# since `less' and `more' can use the emboldening info.
# However, disable SGR, since Solaris `col' mishandles it.
opts="$opts -P-c" ;;
-v | --version)
echo "GNU nroff (groff) version 1.22.3"
exit 0 ;;
--help)
echo "usage: nroff [-CchipStUv] [-dCS] [-MDIR] [-mNAME] [-nNUM] [-oLIST]"
echo " [-rCN] [-Tname] [-WNAME] [-wNAME] [FILE...]"
exit 0 ;;
--)
shift
break ;;
-)
break ;;
-*)
echo "$prog: invalid option $1" >&2
exit 1 ;;
*)
break ;;
esac
shift
done

if test "x$Topt" != x ; then
T=$Topt
else
if test "x$Tenv" != x ; then
T=-T$Tenv
fi
fi

case $T in
-Tascii | -Tlatin1 | -Tutf8 | -Tcp1047)
;;
*)
# ignore other devices and use locale fallback
T=-T$Tloc ;;
esac

# Set up the `GROFF_BIN_PATH' variable
# to be exported in the current `GROFF_RUNTIME' environment.

GROFF_RUNTIME="${GROFF_BIN_PATH=/usr/bin}:"
export GROFF_BIN_PATH

# Load nroff-style character definitions too.

PATH="$GROFF_RUNTIME$PATH" groff -mtty-char $T $opts ${1+"$@"}

# eof