#!/bin/bash
#  $HeadURL$ $LastChangedRevision$
set -e
PROGNAME=$(basename $0)

#  Load support functions
. $(pcms-config PCMS_SHARE_PREFIX)/scripts/support.sh

main()
{
    #  Defaults for options
    VERBOSELEVEL=2

    debug 10 "main: sof"

    #  Process options
    while [ $# -ge 1 ]; do
        case $1 in
            -d)              VERBOSELEVEL=$2; shift ;;
            --debug=*)       VERBOSELEVEL=${1#*=} ;;
            -v|--verbose)    VERBOSELEVEL=3 ;;
            --)              shift; break ;;
            -*)              error "main: $1: bad option" ;;
            *)               break ;;
        esac
        shift
    done

    #  Process arguments
    [ $# = 3 ] || usage
    SRC=$1
    DST=$2
    eval set -- $(encode --decode "$3") FOO=bar/bar
    [ $# -ge 1 ] || usage

    #  Sanity checks and derivations

    #  Guts
    eval "sed -e 1d $(for ASSIGNMENT in "$@"; do PLACEHOLDER=${ASSIGNMENT%%=*}; VALUE=${ASSIGNMENT#*=}; echo -n "-e 's/$PLACEHOLDER/${VALUE//\//\\\/}/g' "; done)" < $SRC > $DST
}

usage() { echo "Usage: $PROGNAME <src> <dst> <assignment[@...]" >&2; exit 1; }

main "$@"