feedkeys.diff

diff --git a/src/Makefile b/src/Makefile
index f460a61..c1b1e3f 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -2003,6 +2003,7 @@ test_arglist \
 	test_cursor_func \
 	test_delete \
 	test_expand \
+	test_feedkeys \
 	test_glob2regpat \
 	test_hardcopy \
 	test_increment \
diff --git a/src/eval.c b/src/eval.c
index 31c5ea2..394f2f4 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -11818,24 +11818,25 @@ f_feedkeys(typval_T *argvars, typval_T *rettv UNUSED)
 	return;
 
     keys = get_tv_string(&argvars[0]);
-    if (*keys != NUL)
+
+    if (argvars[1].v_type != VAR_UNKNOWN)
     {
-	if (argvars[1].v_type != VAR_UNKNOWN)
+	flags = get_tv_string_buf(&argvars[1], nbuf);
+	for ( ; *flags != NUL; ++flags)
 	{
-	    flags = get_tv_string_buf(&argvars[1], nbuf);
-	    for ( ; *flags != NUL; ++flags)
+	    switch (*flags)
 	    {
-		switch (*flags)
-		{
-		    case 'n': remap = FALSE; break;
-		    case 'm': remap = TRUE; break;
-		    case 't': typed = TRUE; break;
-		    case 'i': insert = TRUE; break;
-		    case 'x': execute = TRUE; break;
-		}
+		case 'n': remap = FALSE; break;
+		case 'm': remap = TRUE; break;
+		case 't': typed = TRUE; break;
+		case 'i': insert = TRUE; break;
+		case 'x': execute = TRUE; break;
 	    }
 	}
+    }
 
+    if (*keys != NUL || execute)
+    {
 	/* Need to escape K_SPECIAL and CSI before putting the string in the
 	 * typeahead buffer. */
 	keys_esc = vim_strsave_escape_csi(keys);
diff --git a/src/testdir/test_alot.vim b/src/testdir/test_alot.vim
index 857fe9a..46be515 100644
--- a/src/testdir/test_alot.vim
+++ b/src/testdir/test_alot.vim
@@ -5,6 +5,7 @@ source test_backspace_opt.vim
 source test_cursor_func.vim
 source test_delete.vim
 source test_expand.vim
+source test_feedkeys.vim
 source test_file_perm.vim
 source test_glob2regpat.vim
 source test_join.vim
diff --git a/src/testdir/test_feedkeys.vim b/src/testdir/test_feedkeys.vim
new file mode 100644
index 0000000..33cd589
--- /dev/null
+++ b/src/testdir/test_feedkeys.vim
@@ -0,0 +1,10 @@
+" Test feedkeys() function.
+
+func Test_feedkeys_x_with_empty_string()
+  new
+  call feedkeys("ifoo\<Esc>")
+  call assert_equal('', getline('.'))
+  call feedkeys('', 'x')
+  call assert_equal('foo', getline('.'))
+  quit!
+endfunc

差分が若干みづらいですが、空文字列のときは一切処理をしていなかったのを、先に {mode} の処理を行い、x がある場合は空文字列でも実行するようにした感じです。