# HG changeset patch
# User Bram Moolenaar <Bram@vim.org>
# Date 1630176303 -7200
# Node ID 64fa341cc33b65aa9d37b2acd20e2d60c17e2dee
# Parent  dad034c30ec13f654881351b0c0c039743e4a11c
patch 8.2.3384: cannot disable modeline for an individual file

Commit: https://github.com/vim/vim/commit/9dcd349ca85e1df1abd1cbf1c29c0f1574b70bf8
Author: Hu Jialun <hujialun@comp.nus.edu.sg>
Date:   Sat Aug 28 20:42:50 2021 +0200

    patch 8.2.3384: cannot disable modeline for an individual file

    Problem:    Cannot disable modeline for an individual file.
    Solution:   Recognize "nomodeline" in a modeline. (Hu Jialun, closes https://github.com/vim/vim/issues/8798)

diff --git a/runtime/doc/options.txt b/runtime/doc/options.txt
--- a/runtime/doc/options.txt
+++ b/runtime/doc/options.txt
@@ -541,6 +541,15 @@ chance that a normal word like "lex:" is
 version 3.0).  Using "ex:" at the start of the line will be ignored (this
 could be short for "example:").
 
+If the modeline is disabled within a modeline, subsequent modelines will be
+ignored.  This is to allow turning off modeline on a per-file basis.  This is
+useful when a line looks like a modeline but isn't.  For example, it would be
+good to start a YAML file containing strings like "vim:" with
+    # vim: nomodeline ~
+so as to avoid modeline misdetection.  Following options on the same line
+after modeline deactivation, if any, are still evaluated (but you would
+normally not have any).
+
 							*modeline-local*
 The options are set like with ":setlocal": The new value only applies to the
 buffer and window that contain the file.  Although it's possible to set global
diff --git a/src/buffer.c b/src/buffer.c
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -5446,12 +5446,12 @@ do_modelines(int flags)
 	return;
 
     ++entered;
-    for (lnum = 1; lnum <= curbuf->b_ml.ml_line_count && lnum <= nmlines;
+    for (lnum = 1; curbuf->b_p_ml && lnum <= curbuf->b_ml.ml_line_count && lnum <= nmlines;
 								       ++lnum)
 	if (chk_modeline(lnum, flags) == FAIL)
 	    nmlines = 0;
 
-    for (lnum = curbuf->b_ml.ml_line_count; lnum > 0 && lnum > nmlines
+    for (lnum = curbuf->b_ml.ml_line_count; curbuf->b_p_ml && lnum > 0 && lnum > nmlines
 		       && lnum > curbuf->b_ml.ml_line_count - nmlines; --lnum)
 	if (chk_modeline(lnum, flags) == FAIL)
 	    nmlines = 0;
diff --git a/src/testdir/test_modeline.vim b/src/testdir/test_modeline.vim
--- a/src/testdir/test_modeline.vim
+++ b/src/testdir/test_modeline.vim
@@ -360,4 +360,12 @@ func Test_modeline_diff_buffer()
   bw
 endfunc
 
+func Test_modeline_disable()
+  set modeline
+  call writefile(['vim: sw=2', 'vim: nomodeline', 'vim: sw=3'], 'Xmodeline_disable')
+  edit Xmodeline_disable
+  call assert_equal(2, &sw)
+  call delete('Xmodeline_disable')
+endfunc
+
 " vim: shiftwidth=2 sts=2 expandtab
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -756,6 +756,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3384,
+/**/
     3383,
 /**/
     3382,