Fix URL detection

src/common/url.h

@@ -8,7 +8,9 @@ extern void *url_tree;
 #define WORD_CHANNEL 3
 #define WORD_HOST    4
 #define WORD_EMAIL   5
+/* anything >0 will be displayed as a link by gtk_xtext_motion_notify() */
 #define WORD_DIALOG  -1
+#define WORD_PATH    -2
 
 void url_clear (void);
 void url_save (const char *fname, const char *mode, gboolean fullpath);