#!/bin/bash

PROG=$(basename $0)

usage() {
    echo "$PROG: [options]"
    echo ""
    echo "    -h | --help       display this message"
}

FILE=
while [ $# -gt 0 ]; do
    case $1 in
        -h|--help)
            usage
            exit
            ;;
        *)
            FILE=$1
            ;;
    esac
    shift
done

if [ "$FILE x" == " x" ]; then
    sed -e 's|//.*$||g' -e '/^\s*$/d' # <&0
else
    cat $FILE | sed -e 's|//.*$||g' -e '/^\s*$/d'
fi