mconf/nconf: mark empty menus/menuconfigs different from non-empty ones

Submenus are sometimes empty and it would be nice if there is
something that notifies us that we should not expect any content
_before_ we enter a submenu.

A new function menu_is_empty() was introduced and empty menus and
menuconfigs are now marked by "----" as opposed to non-empty ones that
are marked by "--->".

This scheme was suggested by "Yann E. MORIN" <yann.morin.1998@free.fr>.

Signed-off-by: Dirk Gouders <dirk@gouders.net>
Tested-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

1 files changed, 8 insertions, 8 deletions

diff --git a/scripts/kconfig/nconf.c b/scripts/kconfig/nconf.c
index aac85d37b69b..0183153c2095 100644
--- a/scripts/kconfig/nconf.c
+++ b/scripts/kconfig/nconf.c
@@ -45,8 +45,8 @@ static const char nconf_global_help[] = N_(
 "<n> to remove it.  You may press the <Space> key to cycle through the\n"
 "available options.\n"
 "\n"
-"A trailing \"--->\" designates a submenu.\n"
-"\n"
+"A trailing \"--->\" designates a submenu, a trailing \"----\" an\n"
+"empty submenu.\n"
 "\n"
 "Menu navigation keys\n"
 "----------------------------------------------------------------------\n"
@@ -131,7 +131,7 @@ static const char nconf_global_help[] = N_(
 "\n"),
 menu_no_f_instructions[] = N_(
 "Legend:  [*] built-in  [ ] excluded  <M> module  < > module capable.\n"
-"Submenus are designated by a trailing \"--->\".\n"
+"Submenus are designated by a trailing \"--->\", empty ones by \"----\".\n"
 "\n"
 "Use the following keys to navigate the menus:\n"
 "Move up or down with <Up> and <Down>.\n"
@@ -148,7 +148,7 @@ menu_no_f_instructions[] = N_(
 "For help related to the current menu entry press <?> or <h>.\n"),
 menu_instructions[] = N_(
 "Legend:  [*] built-in  [ ] excluded  <M> module  < > module capable.\n"
-"Submenus are designated by a trailing \"--->\".\n"
+"Submenus are designated by a trailing \"--->\", empty ones by \"----\".\n"
 "\n"
 "Use the following keys to navigate the menus:\n"
 "Move up or down with <Up> or <Down>.\n"
@@ -760,9 +760,9 @@ static void build_conf(struct menu *menu)
                                                 indent + 1, ' ', prompt);
                                 } else
                                         item_make(menu, 'm',
-                                                "   %*c%s  --->",
-                                                indent + 1,
-                                                ' ', prompt);
+                                                  "   %*c%s  %s",
+                                                  indent + 1, ' ', prompt,
+                                                  menu_is_empty(menu) ? "----" : "--->");
 
                                 if (single_menu_mode && menu->data)
                                         goto conf_childs;
@@ -904,7 +904,7 @@ static void build_conf(struct menu *menu)
                                 (sym_has_value(sym) || !sym_is_changable(sym)) ?
                                 "" : _(" (NEW)"));
                 if (menu->prompt && menu->prompt->type == P_MENU) {
-                        item_add_str("  --->");
+                        item_add_str("  %s", menu_is_empty(menu) ? "----" : "--->");
                         return;
                 }
         }