text = 'कंप्यूटर'
regex = /[^\p{L}\p{Nd}\p{M}]+/
filter_text = text.gsub(regex, '')
puts filter_text
dGV4dCA9ICfgpJXgpILgpKrgpY3gpK/gpYLgpJ/gpLAnCnJlZ2V4ID0gL1teXHB7TH1ccHtOZH1ccHtNfV0rLwpmaWx0ZXJfdGV4dCA9IHRleHQuZ3N1YihyZWdleCwgJycpCnB1dHMgZmlsdGVyX3RleHQ=