src/roff/nroff/nroff.sh

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