-///return the format of the buffer on a string
-std::string const BufferFormat(Buffer const & buffer);
-///
-void bufferErrors(Buffer const &, TeXErrors const &);
-///
-void bufferErrors(Buffer const &, ErrorList const &);
+/** Make a new unnamed file (buffer) with prefix \c prefix
+ * based on a template named \c templatename
+ */
+Buffer * newUnnamedFile(support::FileName const & path,
+ std::string const & prefix, std::string const & templatename = "");
+
+/// Load the file with name \c fname, and returns the buffer. If the
+/// file was already loaded it just returns the associated buffer.
+Buffer * loadIfNeeded(support::FileName const & fname);
+
+/// Count the number of words in the text between these two iterators
+int countWords(DocIterator const & from, DocIterator const & to);
+
+/// Count the number of chars in the text between these two iterators
+int countChars(DocIterator const & from, DocIterator const & to, bool with_blanks);
+
+} // namespace lyx