Doxygen: created Group to document drivers, disabled by default

Uncomment `ENABLED_SECTIONS += DriverDev` in documentation/Doxyfile.in
to enable driver documentation.

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12968 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

1 files changed, 20 insertions, 0 deletions

diff --git a/src/filename_ext.cxx b/src/filename_ext.cxx
index f07e6797f..43f0a7962 100644
--- a/src/filename_ext.cxx
+++ b/src/filename_ext.cxx
@@ -34,6 +34,21 @@ const char *fl_filename_ext(const char *buf) {
   return Fl::system_driver()->filename_ext(buf);
 }
 
+
+/**
+ * @cond DriverDev
+ * @addtogroup DriverDeveloper
+ * @{
+ */
+
+/**
+ * Default implementation to find a filename extension.
+ *
+ * The default implementation assumes that the last `.` character separates
+ * the extension form the basename of a file.
+ *
+ * @see fl_filename_ext(const char*)
+ */
 const char *Fl_System_Driver::filename_ext(const char *buf) {
   const char *q = 0;
   const char *p = buf;
@@ -44,6 +59,11 @@ const char *Fl_System_Driver::filename_ext(const char *buf) {
   return q ? q : p;
 }
 
+/**
+ * @}
+ * @endcond
+ */
+
 //
 // End of "$Id$".
 //