+// ----------------------------------------------------------------------------
+// constants
+// ----------------------------------------------------------------------------
+
+/// Name for map file.
+#define WXEXTHELP_MAPFILE _T("wxhelp.map")
+/// Maximum line length in map file.
+#define WXEXTHELP_BUFLEN 512
+/// Character introducing comments/documentation field in map file.
+#define WXEXTHELP_COMMENTCHAR ';'
+