# id(1) completion                                         -*- shell-script -*-

proc _id
{
    local cur prev words cword
    _init_completion || return

    if [[ "$cur" == -* ]] {
        local opts=$[ _parse_help $1]
        [[ $opts ]] || setglobal opts = '"-G -g -u'" # POSIX fallback
        setglobal COMPREPLY = ''( $( compgen -W "$opts" -- "$cur" ) )
    } else {
        setglobal COMPREPLY = ''( $( compgen -u "$cur" ) )
    }
} &&
complete -F _id id

# ex: ts=4 sw=4 et filetype=sh