+/// find the previous change in the buffer
+bool findPreviousChange(BufferView * bv);
+
+/// find the change in the buffer
+/// \param next true to find the next change, otherwise the previous
+bool findChange(BufferView * bv, bool next);
+
+// Hopefully, nobody will ever replace with something like this
+#define LYX_FR_NULL_STRING "__LYX__F&R__NULL__STRING__"
+
+class FindAndReplaceOptions {
+public:
+ typedef enum {
+ S_BUFFER,
+ S_DOCUMENT,
+ S_OPEN_BUFFERS,
+ /*S_ALL_MANUALS*/
+ } SearchScope;
+ FindAndReplaceOptions(
+ docstring const & search,
+ bool casesensitive,
+ bool matchword,
+ bool forward,
+ bool expandmacros,
+ bool ignoreformat,
+ bool regexp,
+ docstring const & replace,
+ bool keep_case,
+ SearchScope scope = S_BUFFER
+ );
+ FindAndReplaceOptions() { }
+ docstring search;
+ bool casesensitive;
+ bool matchword;
+ bool forward;
+ bool expandmacros;
+ bool ignoreformat;
+ bool regexp;
+ docstring replace;
+ bool keep_case;
+ SearchScope scope;
+};
+
+/// Write a FindAdvOptions instance to a stringstream
+std::ostringstream & operator<<(std::ostringstream & os, lyx::FindAndReplaceOptions const & opt);
+
+/// Read a FindAdvOptions instance from a stringstream
+std::istringstream & operator>>(std::istringstream & is, lyx::FindAndReplaceOptions & opt);
+
+/// Perform a FindAdv operation.
+bool findAdv(BufferView * bv, FindAndReplaceOptions const & opt);
+
+/** Computes the simple-text or LaTeX export (depending on opt) of buf starting
+ ** from cur and ending len positions after cur, if len is positive, or at the
+ ** paragraph or innermost inset end if len is -1.
+ **
+ ** This is useful for computing opt.search from the SearchAdvDialog controller (ControlSearchAdv).
+ ** Ideally, this should not be needed, and the opt.search field should become a Text const &.
+ **/
+docstring stringifyFromForSearch(
+ FindAndReplaceOptions const & opt,
+ DocIterator const & cur,
+ int len = -1);
+