bash-completion-example

#-*- mode: shell-script;-*-
# Inputs:
#   $1 -- name of the command whose arguments are being completed
#   $2 -- word being completed
#   $3 -- word preceding the word being completed
#   $COMP_LINE  -- current command line
#   $COMP_PONT  -- cursor position
#   $COMP_WORDS -- array containing individual words in the current
#                  command line
#   $COMP_CWORD -- index into ${COMP_WORDS} of the word containing the
#                  current cursor position
# Output:
#   COMPREPLY array variable contains possible completions

#have xmms2 &&
_xmms2 () {
    local cur prev list_commands list

    COMPREPLY=()
    cur=${COMP_WORDS[COMP_CWORD]}
    prev=${COMP_WORDS[COMP_CWORD-1]}
    list_commands="config|volume"
    subs="mlib|playlist|coll"
    types=(list queue pshuffle)
    #commands=$(echo $(xmms2 | awk '{print $1}' | grep -v Available))
    #commands=${commands// /|}

    case "$prev" in
        xmms2)
            list=$(xmms2 | awk '{print $1}' | grep -v Available)
            ;;
        @($subs))
            list=$(xmms2 $prev | awk '{print $1}' | grep -v Available)
            ;;
        @($list_commands))
            list=$(xmms2 ${prev}_list | awk '{print $1}')
            ;;
        *)
            return 0
            ;;
    esac

    COMPREPLY=( $( compgen -W "${list}" -- $cur ) )

    return 0

}
#[ $have ] && complete -F _xmms2 $filenames xmms2
complete -F _xmms2 $filenames xmms2