1 files changed, 29 insertions, 0 deletions
diff --git a/mnv/runtime/ftplugin/diff.mnv b/mnv/runtime/ftplugin/diff.mnv
new file mode 100644
index 0000000000..15692af16e
--- /dev/null
+++ b/mnv/runtime/ftplugin/diff.mnv
@@ -0,0 +1,29 @@
+" MNV filetype plugin file
+" Language:	Diff
+" Maintainer:	The MNV Project <https://github.com/Project-Tick/Project-Tick>
+" Last Change:	2023 Aug 22
+" Former Maintainer:	Bram Moolenaar <Bram@mnv.org>
+
+" Only do this when not done yet for this buffer
+if exists("b:did_ftplugin")
+  finish
+endif
+let b:did_ftplugin = 1
+
+let b:undo_ftplugin = "setl modeline< commentstring<"
+
+" Don't use modelines in a diff, they apply to the diffed file
+setlocal nomodeline
+
+" If there are comments they start with #
+let &l:commentstring = "# %s"
+
+if (has("gui_win32") || has("gui_gtk")) && !exists("b:browsefilter")
+  let b:browsefilter = "Diff Files (*.diff)\t*.diff\nPatch Files (*.patch)\t*.h\n"
+  if has("win32")
+    let b:browsefilter ..= "All Files (*.*)\t*\n"
+  else
+    let b:browsefilter ..= "All Files (*)\t*\n"
+  endif
+  let b:undo_ftplugin ..= " | unlet! b:browsefilter"
+endif