xrun

#!/bin/bash

xcomplete() {
    . /etc/bash_completion

    if [[ "$#" -eq 1 ]]; then
        if OUT="$(compgen -c -- "$1")"; then
            echo "$OUT" | sort -u
            exit 0
        fi
        set -- $*
    fi

    PROG="$(basename "$1")"
    FN="$(complete -p "$PROG" | grep -oE -- '-F *[^ ]+' | sed -e 's/-F //')"
    COMP_WORDS=($*)
    COMP_LINE="$*"
    COMP_COUNT="$(echo "$COMP_LINE" | wc -c)"
    COMP_CWORD=$(( $# -1 ))
    if [[ "$COMP_CWORD" -lt 1 ]]; then
        COMP_CWORD=1
    fi
    $FN

    for ((i=0;i<${#COMPREPLY[*]};i++)); do
        echo ${COMPREPLY[i]}
    done | sort -u

    if [[ "${#COMPREPLY[*]}" -gt 0 ]]; then
        exit 0
    fi
    compgen -f -d -- ${!#} | sort -u
}
export -f -- xcomplete

DIR="$(dirname "$0")"
$($DIR/xmenu -c "bash -c 'xcomplete \"%s\"'")