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

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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>
This commit is contained in:
Dirk Gouders
2013-05-19 21:49:34 +02:00
committed by Yann E. MORIN
parent e0b42605e6
commit 1278ebdbc3
4 changed files with 31 additions and 13 deletions
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16
scripts/kconfig/menu.c
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@@ -430,6 +430,22 @@ bool menu_has_prompt(struct menu *menu)
return true;
}
/*
* Determine if a menu is empty.
* A menu is considered empty if it contains no or only
* invisible entries.
*/
bool menu_is_empty(struct menu *menu)
{
struct menu *child;
for (child = menu->list; child; child = child->next) {
if (menu_is_visible(child))
return(false);
}
return(true);
}
bool menu_is_visible(struct menu *menu)
{
struct menu *child;