add-concerts ()
{
    local concerts_src=$(dirname "${input}")/concerts.in

    sed -i                                                              \
        -e /'{CONCERTS}'/'r '<(./build-concerts.py "${concerts_src}")   \
        -e /'{CONCERTS}'/'c\'                                           \
        $1
}

title=Concerts
stylesheets=concerts
transforms=("$(transform-li-current-a concerts)")
postprocess=add-concerts
translation=concerts