From: Evgeni Golov <sargentd@die-welt.net>
License: 3-BSD

When using IMAP, a '.' is often used as a separator instead of '/'.
This patch enables mutt to find these dots and
1. correctly intend the dir in the sidebar
2. if "sidebar_shortpath" is set, shorten the dir to the part after
   the last dot

I hope, it's usefull for someone ;)

Index: mutt-1.5.20/sidebar.c
===================================================================
--- mutt-1.5.20.orig/sidebar.c	2009-06-17 10:46:20.000000000 +0200
+++ mutt-1.5.20/sidebar.c	2009-06-17 10:47:48.000000000 +0200
@@ -255,14 +255,23 @@
 			int i;
 			tmp_folder_name = tmp->path + strlen(Maildir);
 			for (i = 0; i < strlen(tmp->path) - strlen(Maildir); i++) {
-				if (tmp_folder_name[i] == '/') sidebar_folder_depth++;
+				if (tmp_folder_name[i] == '/' || tmp_folder_name[i] == '.') sidebar_folder_depth++;
 			}
 			if (sidebar_folder_depth > 0) {
-				sidebar_folder_name = malloc(strlen(basename(tmp->path)) + sidebar_folder_depth + 1);
+				if (option(OPTSIDEBARSHORTPATH)) {
+					tmp_folder_name = strrchr(tmp->path, '.');
+					if (tmp_folder_name == NULL)
+						tmp_folder_name = tmp->path;
+					else
+						tmp_folder_name++;
+				}
+				else
+					tmp_folder_name = tmp->path;
+				sidebar_folder_name = malloc(strlen(basename(tmp_folder_name)) + sidebar_folder_depth + 1);
 				for (i=0; i < sidebar_folder_depth; i++)
 					sidebar_folder_name[i]=' ';
 				sidebar_folder_name[i]=0;
-				strncat(sidebar_folder_name, basename(tmp->path), strlen(basename(tmp->path)) + sidebar_folder_depth);
+				strncat(sidebar_folder_name, basename(tmp_folder_name), strlen(basename(tmp_folder_name)) + sidebar_folder_depth);
 			}
 		}
 		printw( "%.*s", SidebarWidth - delim_len + 1,
Index: mutt-1.5.20/mutt.h
===================================================================
--- mutt-1.5.20.orig/mutt.h	2009-06-17 10:47:58.000000000 +0200
+++ mutt-1.5.20/mutt.h	2009-06-17 10:48:20.000000000 +0200
@@ -427,6 +427,7 @@
   OPTSAVENAME,
   OPTSCORE,
   OPTSIDEBAR,
+  OPTSIDEBARSHORTPATH,
   OPTSIGDASHES,
   OPTSIGONTOP,
   OPTSORTRE,
Index: mutt-1.5.20/init.h
===================================================================
--- mutt-1.5.20.orig/init.h	2009-06-17 10:48:41.000000000 +0200
+++ mutt-1.5.20/init.h	2009-06-17 10:49:14.000000000 +0200
@@ -1979,6 +1979,11 @@
   ** .pp
   ** The width of the sidebar.
   */
+  { "sidebar_shortpath", DT_BOOL, R_BOTH, OPTSIDEBARSHORTPATH, 0 },
+  /*
+  ** .pp
+  ** Should the sidebar shorten the path showed.
+  */
   { "pgp_use_gpg_agent", DT_BOOL, R_NONE, OPTUSEGPGAGENT, 0},
   /*
   ** .pp