updated for version 7.3.828

Problem:    Mappings are not aware of wildmenu mode.
Solution:   Add wildmenumode(). (Christian Brabandt)

runtime/doc/eval.txt

@@ -1993,6 +1993,7 @@ undotree()			List	undo file tree
 values( {dict})			List	values in {dict}
 virtcol( {expr})		Number	screen column of cursor or mark
 visualmode( [expr])		String	last visual mode used
+wildmenumode()			Number	whether 'wildmenu' mode is active
 winbufnr( {nr})			Number	buffer number of window {nr}
 wincol()			Number	window column of the cursor
 winheight( {nr})		Number	height of window {nr}
@@ -6162,6 +6163,18 @@ visualmode([expr])						*visualmode()*
 		Dictionary or Float is not a Number or String, thus does not
 		cause the mode to be cleared.
 
+wildmenumode()					*wildmenumode()*
+		Returns non-zero when the wildmenu is active and zero
+		otherwise.  See 'wildmenu' and 'wildmode'.
+		This can be used in mappings to handle the 'wildcharm' option
+		gracefully. (Makes only sense with |mapmode-c| mappings).
+
+		For example to make <c-j> work like <down> in wildmode, use: >
+    :cnoremap <expr> <C-j> wildmenumode() ? "\<Down>\<Tab>" : "\<c-j>"
+<
+		(Note, this needs the 'wildcharm' option set appropriately).
+
+
 							*winbufnr()*
 winbufnr({nr})	The result is a Number, which is the number of the buffer
 		associated with window {nr}.  When {nr} is zero, the number of

src/eval.c

@@ -751,6 +751,7 @@ static void f_undotree __ARGS((typval_T *argvars, typval_T *rettv));
 static void f_values __ARGS((typval_T *argvars, typval_T *rettv));
 static void f_virtcol __ARGS((typval_T *argvars, typval_T *rettv));
 static void f_visualmode __ARGS((typval_T *argvars, typval_T *rettv));
+static void f_wildmenumode __ARGS((typval_T *argvars, typval_T *rettv));
 static void f_winbufnr __ARGS((typval_T *argvars, typval_T *rettv));
 static void f_wincol __ARGS((typval_T *argvars, typval_T *rettv));
 static void f_winheight __ARGS((typval_T *argvars, typval_T *rettv));
@@ -8121,6 +8122,7 @@ static struct fst
     {"values",		1, 1, f_values},
     {"virtcol",		1, 1, f_virtcol},
     {"visualmode",	0, 1, f_visualmode},
+    {"wildmenumode",	0, 0, f_wildmenumode},
     {"winbufnr",	1, 1, f_winbufnr},
     {"wincol",		0, 0, f_wincol},
     {"winheight",	1, 1, f_winheight},
@@ -18576,6 +18578,20 @@ f_visualmode(argvars, rettv)
 #endif
 }
 
+/*
+ * "wildmenumode()" function
+ */
+    static void
+f_wildmenumode(argvars, rettv)
+    typval_T	*argvars UNUSED;
+    typval_T	*rettv UNUSED;
+{
+#ifdef FEAT_WILDMENU
+    if (wild_menu_showing)
+	rettv->vval.v_number = 1;
+#endif
+}
+
 /*
  * "winbufnr(nr)" function
  */

src/version.c

@@ -728,6 +728,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    828,
 /**/
     827,
 /**/