source: tags/initial/SH/arb

#!/bin/sh


nargs=$#
args="$*"

# Add to the path variable named by $1 the component $2.  $3 must be
# "append" or "prepend" to indicate where the component is added.

# error message function
err () {
        echo "`basename $0`: $@" 1>&2
        exit 1
}

addpath () {
    eval value=\"\$$1\"
    case "$value" in
        *:$2:*|*:$2|$2:*|$2)
            result="$value"
            ;;
        "")
            result="$2"
            ;;
        *)
            case "$3" in
                p*)
                    result="$2:${value}"
                    ;;
                *)
                    result="${value}:$2"
                    ;;
            esac
    esac
    eval $1=$result
    unset result value
}

# convenience routine which appends a string to a path.
append () {
    addpath "$1" "$2" append
}

# convenience routine which prepends a string to a path.
prepend () {
    addpath "$1" "$2" prepend
}


case "X${ARBHOME}" in
  X)
        if [ -x /usr/arb/bin/arb ];then
                ARB=/usr/arb/bin/arb
        else
              case "$0" in
                /*)
                       ARB="$0";;
                *)      
                     if ARB=`which $0`; then
                       echo $ARB
                     else
                       ARB=`pwd`/$0
                     fi;;
              esac
        fi
        
        ARBBIN=`dirname $ARB`
        export ARBBIN
        ARBHOME=`dirname $ARBBIN`
        export ARBHOME
      echo "Environment Variable ARBHOME not set"
      echo "    set to $ARBHOME";;
esac

prepend PATH                    $ARBHOME/bin
prepend LD_LIBRARY_PATH         $ARBHOME/lib
append  LD_LIBRARY_PATH         /usr/dt/lib
append  LD_LIBRARY_PATH         /usr/openwin/lib
prepend SHLIB_PATH              $ARBHOME/lib

# environment variables that this shell script sets/changes:
export LD_LIBRARY_PATH MANPATH PATH ARBHOME SHLIB_PATH

# global envs:

export PWD HOME USER

if [ -x $ARBHOME/bin/ghostview ] ; then
  GS_LIB="$ARBHOME/DEPOT/ghostscript"
  export GS_LIB
fi

if [ "X$ARBMACROHOME" = "X" ] ; then
  ARBMACROHOME="$ARBHOME/lib/macros"
  export ARBMACROHOME
fi

ARB_PID="$$"; export ARB_PID

if [ ! -d ${HOME}/.arb_prop ] ; then
  echo 'Directory $HOME/.arb_prop not found creating ...'
  mkdir ${HOME}/.arb_prop
fi

if [ "X$GDE_HELP_DIR" = "X" ] ; then
  GDE_HELP_DIR="$ARBHOME/GDEHELP"
  export GDE_HELP_DIR
fi

# Default Texteditor/CMDTOOL used by ARB
. $ARBHOME/lib/config.`uname`

# save LD_LIBRARY_PATH
ARB_LIBRARY_PATH="${LD_LIBRARY_PATH}"
export ARB_LIBRARY_PATH

echo "Program ARB will be startet in the background, please wait"
(arb_ntree $args;arb_clean >/dev/null 2>&1;echo ARB done) &