VCS_INFO_set () { #{{{
    setopt localoptions noksharrays
    local -i i j

    if [[ $1 == '--clear' ]] ; then
        for i in {0..9} ; do
            unset VCS_INFO_message_${i}_
        done
    fi
    if [[ $1 == '--nvcs' ]] ; then
        [[ $2 == 'preinit' ]] && (( maxexports == 0 )) && (( maxexports = 1 ))
        for i in {0..$((maxexports - 1))} ; do
            typeset -gx VCS_INFO_message_${i}_=
        done
        VCS_INFO_nvcsformats $2
    fi

    (( ${#msgs} - 1 < 0 )) && return 0
    for i in {0..$(( ${#msgs} - 1 ))} ; do
        (( j = i + 1 ))
        typeset -gx VCS_INFO_message_${i}_=${msgs[$j]}
    done
    return 0
}