print_prompt_nl_if_needed() {
  local pos
  local char
  local ok=0
  local save=$(stty -g)

  stty -echo -icanon
  echo -en '\e[6n' 1>&2
  #response format: \e[n;mR (m is needed)
  while true 
  do
    #char=$(dd bs=1 count=1 2>/dev/null)
    char=$(head -c1)
    [[ $char == 'R' ]] && break
    [[ $ok -eq 1 ]]    && pos="${pos}${char}"
    [[ $char == ';' ]] && ok=1
  done

  stty $save
  [[ $pos -gt 1 ]] && echo 1>&2
}

qjoypad() {
  $(which qjoypad) --device /dev/input $@
}

jdownloader() {
  $(java-config --java) -jar ~/Desktop/jdownloader/JDownloader.jar
}

start() {
  #local dir=/home/ben/coding/cpp/starter/
  #"${dir}"start "${dir}"command.sh $@ >> /dev/null 2>&1
#  nohup "$@" &>/dev/null &
  /home/ben/coding/cpp/starter/start \
    bash -c "source ~/.bashrc.functions; ${@} >> /dev/null 2>&1"
}

ts() {
  start /opt/bin/TeamSpeak $@
}

eworld() {
  local packages=$(/usr/bin/eix -u --only-names)
  [[ -n $packages ]] && /usr/bin/sudo /usr/bin/emerge --verbose --ask --update --oneshot $packages
}



uflag() {
  local use=`echo ${1} | sed -n "s/[^a-Z0-9\-]//g; p"`
  #  [[ -n $use ]] && sed -n "/\(^\|:\)$use -/p" /usr/portage/profiles/use* | grep --color $use
  files="/usr/portage/profiles/use.desc /usr/portage/profiles/desc/*"
  echo "global use flags (searching: ${use})"
  [[ -n $use ]] && sed -n "s~^\(\(.*/.*\):\)\?\(${use} \)\(.*\)$~&~p" $files

  echo -e "\nlocal useflags (searching: ${use})"
  [[ -n $use ]] && sed -n "s~^\(\(.*/.*\):\)\?\(${use}\)[[:space:]]*-[[:space:]]*\(.*\)$~\3 (\2):\n\4~p" /usr/portage/profiles/use.local.desc
}

tstart() {
  [[ -n `ps -C $1 | sed -n 's/^.\([0-9][0-9]*\).*$/\1/p'` ]] && killall $1 || $1
}

up() {
  local server=netdirekt

  if [[ -f $1 ]]; then 
    local rand=`date +%s | md5sum | sed -n 's/^\(...\).*$/\1/p'`
    local name="${rand}-`basename $1`"
    scp -q $1 $server:"/home/benjamin/uploads/${name}" || exit

    local cmd="sudo chown lighttpd:lighttpd /home/benjamin/uploads/${name}"
    ssh -q $server $cmd || exit

		local ext=$(echo $1 | sed "s/^.*\.\([^\.]*\)$/\\1/")
		local types="dummy txt $(sed -n "s/^\$ext(\(.*\))=\(.*\)$/\\1 \\2/p" /etc/highlight/filetypes.conf) dummy"

		[[ -n $(echo $types | grep " $ext ") ]] && \
				local url="http://89.149.199.86/highlight/${name}" || \
				local url="http://89.149.199.86/filebase/files/${name}"

    echo -n $url | xclip -selection clipboard
    echo -n $url | xclip -selection primary
    echo $url
  fi
}

function calc() { echo "$*" | bc; }

pdftojpeg() {
  if [ -z $2 ]  || [ $1 = "--help" ] || [ $1 = "-h" ]; then
    echo "Usage: pdftojpeg <input.pdf> <output.jpg>"
  elif [ -e $2 ]; then
    echo "Error: $2 existiert bereits!"
  else
    pdftoppm -l 1 "$1" | convert - -resize "176x248" "$2"
    #pdftoppm -l 1 -scale-to 248 "$1" -- | cjpeg > "$2"
  fi
}

unpack() {
	local srcdir
	local x
	local y
	local myfail
	local tar_opts=""
	[ -z "$*" ] && die "Nothing passed to the 'unpack' command"

	for x in "$@"; do
		echo ">>> Unpacking ${x} to ${PWD}"
		y=${x%.*}
		y=${y##*.}

#		if [[ ${x} == "./"* ]] ; then
#			srcdir=""
#		elif [[ ${x} == ${DISTDIR%/}/* ]] ; then
#			die "Arguments to unpack() cannot begin with \${DISTDIR}."
#		elif [[ ${x} == "/"* ]] ; then
#			die "Arguments to unpack() cannot be absolute"
#		else
#			srcdir="${DISTDIR}/"
#		fi
		[[ ! -s ${x} ]] && die "${x} does not exist"

		myfail="failure unpacking ${x}"
		case "${x##*.}" in
			tar)
				tar xof "${x}" ${tar_opts} || die "$myfail"
				;;
			tgz)
				tar xozf "${x}" ${tar_opts} || die "$myfail"
				;;
			tbz|tbz2)
				bzip2 -dc "${x}" | tar xof - ${tar_opts}
				#assert "$myfail"
				;;
			ZIP|zip|jar)
				unzip -qo "${x}" || die "$myfail"
				;;
			gz|Z|z)
				if [ "${y}" == "tar" ]; then
					tar zoxf "${x}" ${tar_opts} || die "$myfail"
				else
					gzip -dc "${x}" > ${x%.*} || die "$myfail"
				fi
				;;
			bz2|bz)
				if [ "${y}" == "tar" ]; then
					bzip2 -dc "${x}" | tar xof - ${tar_opts}
					assert "$myfail"
				else
					bzip2 -dc "${x}" > ${x%.*} || die "$myfail"
				fi
				;;
			7Z|7z)
				local my_output
				my_output="$(7z x -y "${x}")"
				if [ $? -ne 0 ]; then
					echo "${my_output}" >&2
					die "$myfail"
				fi
				;;
			RAR|rar)
				unrar x -idq -o+ "${x}" || die "$myfail"
				;;
			LHa|LHA|lha|lzh)
				lha xfq "${x}" || die "$myfail"
				;;
			a|deb)
				ar x "${x}" || die "$myfail"
				;;
			lzma)
				if [ "${y}" == "tar" ]; then
					lzma -dc "${x}" | tar xof - ${tar_opts}
					assert "$myfail"
				else
					lzma -dc "${x}" > ${x%.*} || die "$myfail"
				fi
				;;
			*)
				echo "unpack ${x}: file format not recognized. Ignoring."
				;;
		esac
	done
#	# Do not chmod '.' since it's probably ${WORKDIR} and PORTAGE_WORKDIR_MODE
#	# should be preserved.
#	find . -mindepth 1 -maxdepth 1 ! -type l -print0 | \
#		${XARGS} -0 chmod -fR a+rX,u+w,g-w,o-w
}



die() {
	echo " * ${*:-(no error message)}"
}