src/roff/nroff/nroff.sh

   1 #! /bin/sh
   2 # Emulate nroff with groff.
   3 #
   4 # Copyright (C) 1992, 1993, 1994, 1999, 2000, 2001, 2002, 2003,
   5 #               2004, 2005, 2007
   6 #   Free Software Foundation, Inc.
   7 #
   8 # Written by James Clark, maintained by Werner Lemberg.
   9
  10 # This file is of `groff'.
  11
  12 # `groff' is free software; you can redistribute it and/or modify it
  13 # under the terms of the GNU General Public License (GPL) as published
  14 # by the Free Software Foundation; either version 2, or (at your
  15 # option) any later version.
  16
  17 # `groff' is distributed in the hope that it will be useful, but
  18 # WITHOUT ANY WARRANTY; without even the implied warranty of
  19 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  20 # General Public License for more details.
  21
  22 # You should have received a copy of the GNU General Public License
  23 # along with `groff'; see the files COPYING and LICENSE in the top
  24 # directory of the `groff' source.  If not, write to the Free Software
  25 # Foundation, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301,
  26 # USA.
  27
  28 prog="$0"
  29
  30 # Default device.
  31
  32 # Check the GROFF_TYPESETTER environment variable.
  33 Tenv=$GROFF_TYPESETTER
  34
  35 # Try the `locale charmap' command first because it is most reliable.
  36 # On systems where it doesn't exist, look at the environment variables.
  37 case "`exec 2>/dev/null ; locale charmap`" in
  38   UTF-8)
  39     Tloc=utf8 ;;
  40   ISO-8859-1 | ISO-8859-15)
  41     Tloc=latin1 ;;
  42   IBM-1047)
  43     Tloc=cp1047 ;;
  44   *)
  45     case "${LC_ALL-${LC_CTYPE-${LANG}}}" in
  46       *.UTF-8)
  47         Tloc=utf8 ;;
  48       iso_8859_1 | *.ISO-8859-1 | *.ISO8859-1 | \
  49       iso_8859_15 | *.ISO-8859-15 | *.ISO8859-15)
  50         Tloc=latin1 ;;
  51       *.IBM-1047)
  52         Tloc=cp1047 ;;
  53       *)
  54         case "$LESSCHARSET" in
  55           utf-8)
  56             Tloc=utf8 ;;
  57           latin1)
  58             Tloc=latin1 ;;
  59           cp1047)
  60             Tloc=cp1047 ;;
  61           *)
  62             Tloc=ascii ;;
  63         esac ;;
  64     esac ;;
  65 esac
  66
  67 # `for i; do' doesn't work with some versions of sh
  68
  69 Topt=
  70 opts=
  71 for i
  72   do
  73   case $1 in
  74     -c)
  75       opts="$opts -P-c" ;;
  76     -h)
  77       opts="$opts -P-h" ;;
  78     -[eq] | -s*)
  79       # ignore these options
  80       ;;
  81     -[dMmrnoT])
  82       echo "$prog: option $1 requires an argument" >&2
  83       exit 1 ;;
  84     -[iptSUC] | -[dMmrno]*)
  85       opts="$opts $1" ;;
  86     -T*)
  87       Topt=$1 ;;
  88     -u*)
  89       # Solaris 2.2 through at least Solaris 9 `man' invokes
  90       # `nroff -u0 ... | col -x'.  Ignore the -u0,
  91       # since `less' and `more' can use the emboldening info.
  92       # However, disable SGR, since Solaris `col' mishandles it.
  93       opts="$opts -P-c" ;;
  94     -v | --version)
  95       echo "GNU nroff (groff) version @VERSION@"
  96       exit 0 ;;
  97     --help)
  98       echo "usage: nroff [-CchipStUv] [-dCS] [-MDIR] [-mNAME] [-nNUM] [-oLIST]"
  99       echo "             [-rCN] [-Tname] [FILE...]"
 100       exit 0 ;;
 101     --)
 102       shift
 103       break ;;
 104     -)
 105       break ;;
 106     -*)
 107       echo "$prog: invalid option $1" >&2
 108       exit 1 ;;
 109     *)
 110       break ;;
 111   esac
 112   shift
 113 done
 114
 115 if test "x$Topt" != x ; then
 116   T=$Topt
 117 else
 118   if test "x$Tenv" != x ; then
 119     T=-T$Tenv
 120   fi
 121 fi
 122
 123 case $T in
 124   -Tascii | -Tlatin1 | -Tutf8 | -Tcp1047)
 125     ;;
 126   *)
 127     # ignore other devices and use locale fallback
 128     T=-T$Tloc ;;
 129 esac
 130
 131 # Set up the `GROFF_BIN_PATH' variable
 132 # to be exported in the current `GROFF_RUNTIME' environment.
 133
 134 @GROFF_BIN_PATH_SETUP@
 135 export GROFF_BIN_PATH
 136
 137 # This shell script is intended for use with man, so warnings are
 138 # probably not wanted.  Also load nroff-style character definitions.
 139
 140 PATH="$GROFF_RUNTIME$PATH" groff -mtty-char $T $opts ${1+"$@"}
 141
 142 # eof