do


function conky_bar(str)
     str = tonumber(conky_parse(str))
     return string.char(238, 128, math.ceil( 128 + str * 7 / 100 ))
end


function conky_wifi(str)
     str = tonumber(conky_parse(str))
     return string.char(238, 128, math.ceil( 144 + str * 3 / 100 ))
end


function conky_battery(str)
     str = tonumber(conky_parse(str))
     return string.char(238, 128, math.ceil( 153 + str * 6 / 100 ))
end


function conky_volume(str)
     str = tonumber(conky_parse(str))
         if str == 0 then
            return " "
         end
         return string.char(238, 128, math.ceil( 148 + str * 3 / 100 ))
end


function dehumanize(sn)
     n = string.match(sn, '(%d+)')
     s = string.match(sn, '(%a+)')

     if string.upper(s) == "K" then
        n = n * 1000
     elseif string.upper(s) == "M" then
        n = n * 10000000
     end
     return tonumber(n)
end


function conky_updown(u, d)
     u = conky_parse(u)
     d = conky_parse(d)

     un = dehumanize(u)
     dn = dehumanize(d)

     ar = "  "
     st = d

     if dn > 0 then
        udd = un / dn
        if udd == 0 then
            st = d
                ar = " "
        elseif udd < 0.5 then
            st = d
        ar = " "
        elseif udd > 2 then
            s = u
            ar = " "
        else
        if udd > 1 then
           st = u
        end
        ar = ""
        end
     else
        st = u
        if un > 0 then
           ar = " "
            else
               st = "0.00B"
        end
     end

     return st .. ar
end


function conky_unispace(str,n)
     str = conky_parse(str):match'^%s*(.*%S)' or ''
     return string.rep(" ", n - string.len(str)) .. str
end

end