X-Git-Url: https://jxself.org/git/?a=blobdiff_plain;ds=sidebyside;f=config%2Fmenu.c;fp=config%2Fmenu.c;h=af66065733bb636be638d72c9fe4492692462d28;hb=208f6c0ba32f016890408ba55155be9de94c66f8;hp=dcf22008b2d6e4732d1e2785b0706395a8e1b071;hpb=82b30c13e001113c9df51fcbfbde94bce1183d29;p=carl9170fw.git

diff --git a/config/menu.c b/config/menu.c
index dcf2200..af66065 100644
--- a/config/menu.c
+++ b/config/menu.c
@@ -532,6 +532,35 @@ void menu_finalize(struct menu *parent)
 			*ep = expr_alloc_one(E_LIST, NULL);
 			(*ep)->right.sym = menu->sym;
 		}
+
+		/*
+		 * This code serves two purposes:
+		 *
+		 * (1) Flattening 'if' blocks, which do not specify a submenu
+		 *     and only add dependencies.
+		 *
+		 *     (Automatic submenu creation might still create a submenu
+		 *     from an 'if' before this code runs.)
+		 *
+		 * (2) "Undoing" any automatic submenus created earlier below
+		 *     promptless symbols.
+		 *
+		 * Before:
+		 *
+		 *	A
+		 *	if ... (or promptless symbol)
+		 *	 +-B
+		 *	 +-C
+		 *	D
+		 *
+		 * After:
+		 *
+		 *	A
+		 *	if ... (or promptless symbol)
+		 *	B
+		 *	C
+		 *	D
+		 */
 		if (menu->list && (!menu->prompt || !menu->prompt->text)) {
 			for (last_menu = menu->list; ; last_menu = last_menu->next) {
 				last_menu->parent = parent;