gnu/dist/groff/src/roff/nroff/nroff.sh

   1 #! /bin/sh
   2 # Emulate nroff with groff.
   3
   4 prog="$0"
   5 # Default device.
   6 # First try the "locale charmap" command, because it's most reliable.
   7 # On systems where it doesn't exist, look at the environment variables.
   8 case "`exec 2>/dev/null ; locale charmap`" in
   9   UTF-8)
  10     T=-Tutf8 ;;
  11   ISO-8859-1 | ISO-8859-15)
  12     T=-Tlatin1 ;;
  13   IBM-1047)
  14     T=-Tcp1047 ;;
  15   *)
  16     case "${LC_ALL-${LC_CTYPE-${LANG}}}" in
  17       *.UTF-8)
  18         T=-Tutf8 ;;
  19       iso_8859_1 | *.ISO-8859-1 | *.ISO8859-1 | \
  20       iso_8859_15 | *.ISO-8859-15 | *.ISO8859-15)
  21         T=-Tlatin1 ;;
  22       *.IBM-1047)
  23         T=-Tcp1047 ;;
  24       *)
  25         case "$LESSCHARSET" in
  26           utf-8)
  27             T=-Tutf8 ;;
  28           latin1)
  29             T=-Tlatin1 ;;
  30           cp1047)
  31             T=-Tcp1047 ;;
  32           *)
  33             T=-Tascii ;;
  34           esac ;;
  35      esac ;;
  36 esac
  37 opts=
  38
  39 # `for i; do' doesn't work with some versions of sh
  40
  41 for i
  42   do
  43   case $1 in
  44     -c)
  45       opts="$opts -P-c" ;;
  46     -h)
  47       opts="$opts -P-h" ;;
  48     -[eq] | -s*)
  49       # ignore these options
  50       ;;
  51     -[dMmrnoT])
  52       echo "$prog: option $1 requires an argument" >&2
  53       exit 1 ;;
  54     -[iptSUC] | -[dMmrno]*)
  55       opts="$opts $1" ;;
  56     -Tascii | -Tlatin1 | -Tutf8 | -Tcp1047)
  57       T=$1 ;;
  58     -T*)
  59       # ignore other devices
  60       ;;
  61     -u*)
  62       # Solaris 2.2 through at least Solaris 9 `man' invokes
  63       # `nroff -u0 ... | col -x'.  Ignore the -u0,
  64       # since `less' and `more' can use the emboldening info.
  65       # However, disable SGR, since Solaris `col' mishandles it.
  66       opts="$opts -P-c" ;;
  67     -v | --version)
  68       echo "GNU nroff (groff) version @VERSION@"
  69       exit 0 ;;
  70     --help)
  71       echo "usage: nroff [-CchipStUv] [-dCS] [-MDIR] [-mNAME] [-nNUM] [-oLIST]"
  72       echo "             [-rCN] [-Tname] [FILE...]"
  73       exit 0 ;;
  74     --)
  75       shift
  76       break ;;
  77     -)
  78       break ;;
  79     -*)
  80       echo "$prog: invalid option $1" >&2
  81       exit 1 ;;
  82     *)
  83       break ;;
  84   esac
  85   shift
  86 done
  87
  88 # Set up the `GROFF_BIN_PATH' variable
  89 # to be exported in the current `GROFF_RUNTIME' environment.
  90
  91 @GROFF_BIN_PATH_SETUP@
  92 export GROFF_BIN_PATH
  93
  94 # This shell script is intended for use with man, so warnings are
  95 # probably not wanted.  Also load nroff-style character definitions.
  96
  97 PATH="$GROFF_RUNTIME$PATH" groff -mtty-char $T $opts ${1+"$@"}
  98
  99 # eof