awesome -- ограничение строки названия песни в виджете mpd

-- MPD
mpd_icon = wibox.widget.imagebox()
mpd_icon:set_image(beautiful.mpd)
prev_icon = wibox.widget.imagebox()
prev_icon:set_image(beautiful.prev)
next_icon = wibox.widget.imagebox()
next_icon:set_image(beautiful.nex)
stop_icon = wibox.widget.imagebox()
stop_icon:set_image(beautiful.stop)
pause_icon = wibox.widget.imagebox()
pause_icon:set_image(beautiful.pause)
play_pause_icon = wibox.widget.imagebox()
play_pause_icon:set_image(beautiful.play)

mpdwidget = lain.widgets.mpd({
    settings = function ()
        if mpd_now.state == "play" then
            mpd_now.artist = mpd_now.artist:upper():gsub("&.-;", string.lower)
            mpd_now.title = mpd_now.title:upper():gsub("&.-;", string.lower)
            widget:set_markup(markup.font("Tamsyn 4", " ")
                              .. markup.font("Tamsyn 8",
                              mpd_now.artist
                              .. " - " ..
                              mpd_now.title
                              .. markup.font("Tamsyn 10", " ")))
            play_pause_icon:set_image(beautiful.pause)
        elseif mpd_now.state == "pause" then
            widget:set_markup(markup.font("Tamsyn 4", " ") ..
                              markup.font("Tamsyn 8", "MPD PAUSED") ..
                              markup.font("Tamsyn 10", " "))
            play_pause_icon:set_image(beautiful.play)
        else
            widget:set_markup("")
            play_pause_icon:set_image(beautiful.play)
        end
    end
})

musicwidget = wibox.widget.background()
musicwidget:set_widget(mpdwidget)
musicwidget:set_bgimage(beautiful.widget_bg)
musicwidget:buttons(awful.util.table.join(awful.button({ }, 1,
function () awful.util.spawn_with_shell(musicplr) end)))
mpd_icon:buttons(awful.util.table.join(awful.button({ }, 1,
function () awful.util.spawn_with_shell(musicplr) end)))
prev_icon:buttons(awful.util.table.join(awful.button({}, 1,
function ()
    awful.util.spawn_with_shell("mpc prev || ncmpcpp prev)
    mpdwidget.update()
end)))
next_icon:buttons(awful.util.table.join(awful.button({}, 1,
function ()
    awful.util.spawn_with_shell("mpc next || ncmpcpp next")
    mpdwidget.update()
end)))
stop_icon:buttons(awful.util.table.join(awful.button({}, 1,
function ()
    play_pause_icon:set_image(beautiful.play)
    awful.util.spawn_with_shell("mpc stop || ncmpcpp stop")
    mpdwidget.update()
end)))
play_pause_icon:buttons(awful.util.table.join(awful.button({}, 1,
function ()
    awful.util.spawn_with_shell("mpc toggle || ncmpcpp toggle")
    mpdwidget.update()
end)))

local unicode = require "unicode"
local utf8 = unicode.utf8

for i = 1, utf8.len(mpd_now.artist) do
    print( utf8.sub(mpd_now.artist, 0, 25) )
end
.. " - " ..
for i = 1, utf8.len(mpd_now.title) do
    print( utf8.sub(mpd_now.title, 0, 25) )
end