module Buf:sig..end
type buf
create n creates the buffer. n is used to determine
the initial size of the buffer. The meaning of n differs from
modules to modules.val create : int -> bufval contents : buf -> Main.Type.UnicodeString.Type.tval clear : buf -> unitval reset : buf -> unitval add_char : buf -> Main.Type.UChar.t -> unitval add_string : buf ->
Main.Type.UnicodeString.Type.t -> unitval add_buffer : buf ->
buf -> unit