#!/usr/bin/env bash
# $Id: mdd,v 1.1 2019/05/29 19:37:29 friedman Exp $

# Wrapper around `dd' to join args with `=' where required.
# This makes it easier to do filename completion on args without changing
# the syntax of `=' in emacs, since that is a valid file name character.

dd_op=( if ibs iflag    bs cbs conv
        of obs oflag    seek skip count status )


apush() { eval "$1=(\"\${$1[@]}\" \"\${@:2}\")"; }

member()
{
    eval set : "$1" "\"\${$2[@]}\""
    shift
    while [ $# -gt 1 ]; do
        case $2 in $1 ) return 0 ;; esac
        set : "$1" "${@:3}"
        shift
    done
    return 1
}

main()
{
    declare -a ddarg=()
    while [ $# -gt 0 ]; do
        if member "$1" dd_op; then
            apush ddarg "$1=$2"
            shift
        else
            apush ddarg "$1"
        fi
        shift
    done

    exec ${DD-dd} "${ddarg[@]}"
}

main "$@"

# eof