local md5 = require("md5") function filter_open(email, page) buffer = "" hexdigest = md5.sumhexa(email:sub(2, -2):lower()) end function filter_close() html("<span class='libravatar'><img class='inline' src='//seccdn.libravatar.org/avatar/" .. hexdigest .. "?s=13&d=retro' /><img class='onhover' src='//seccdn.libravatar.org/avatar/" .. hexdigest .. "?s=128&d=retro' /></span>" .. buffer) return 0 end function filter_write(str) buffer = buffer .. str end