From af679d0c6a1f1bda7e10fb6518e88efe18c1b790 Mon Sep 17 00:00:00 2001
From: Nick Thomas <me@ur.gs>
Date: Mon, 31 Dec 2018 13:38:35 +0000
Subject: [PATCH] Document Menu/*.mni files

---
 doc/formats/index.md |  5 +++--
 doc/formats/mnu.md   | 11 +++++++++++
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/doc/formats/index.md b/doc/formats/index.md
index d4bd81d..a76431b 100644
--- a/doc/formats/index.md
+++ b/doc/formats/index.md
@@ -70,8 +70,9 @@ remake.
 * [`Maps/`](maps.md)
     * `*.MAP`
     * `*.TXT`
-* `Menu/`
-    * [`*.mnu`](mnu.md) # plain text, linked to .obj file, contains definitions
+* [`Menu/`](mnu.md) - UI element definitions
+    * `*.mni`
+    * `*.mnu`
     * [`*.obj`](obj.md)
 * `Misc/`
     * `occlusio.lis` # plain text, presumably occlusion mappings?
diff --git a/doc/formats/mnu.md b/doc/formats/mnu.md
index 638f2f2..f55e009 100644
--- a/doc/formats/mnu.md
+++ b/doc/formats/mnu.md
@@ -122,3 +122,14 @@ Submenus also show a couple of unique values:
 | `SUBMENUID`   | `1`, `2`, `3` | As `MENUID`   |
 | `SUBMENUTYPE` | `0`, `1`, `2` | As `MENUTYPE` |
 
+It seems .mnu files can also include other files, which have the extension
+`.mni` (presumably for "Menu include"). Examples:
+
+```
+*
+$GenDialog.mni
+$GenLoad.mni
+```
+
+It looks like we just interpolate the named file into the text when we come
+across one of these lines.