+ /// Output the surrogate pair formed by \p c and \p next to \p os.
+ /// \return the number of characters written.
+ int latexSurrogatePair(odocstream & os, value_type c, value_type next,
+ Encoding const &);
+ /// Output a space in appropriate formatting (or a surrogate pair
+ /// if the next character is a combining character).
+ /// \return whether a surrogate pair was output.
+ bool simpleTeXBlanks(BufferParams const &, Encoding const &,
+ odocstream &, TexRow & texrow,
+ pos_type & i,