patch 8.2.1058: multiline conceal causes display errors
Problem: Multiline conceal causes display errors.
Solution: Do not allow conceal cross over EOL. (closes #6326, closes #4854,
closes #6302)
diff --git a/src/testdir/test_conceal.vim b/src/testdir/test_conceal.vim
index bf942b7..b555682 100644
--- a/src/testdir/test_conceal.vim
+++ b/src/testdir/test_conceal.vim
@@ -254,4 +254,26 @@
call delete('XTest_conceal_curpos')
endfunc
+func Test_conceal_eol()
+ new!
+ setlocal concealcursor=n conceallevel=1
+ call setline(1, ["x", ""])
+ call matchaddpos('Conceal', [[2, 1, 1]], 2, -1, {'conceal': 1})
+ redraw!
+
+ call assert_notequal(screenchar(1, 1), screenchar(2, 2))
+ call assert_equal(screenattr(1, 1), screenattr(1, 2))
+ call assert_equal(screenattr(1, 2), screenattr(2, 2))
+ call assert_equal(screenattr(2, 1), screenattr(2, 2))
+
+ set list
+ redraw!
+
+ call assert_equal(screenattr(1, 1), screenattr(2, 2))
+ call assert_notequal(screenattr(1, 1), screenattr(1, 2))
+ call assert_notequal(screenattr(1, 2), screenattr(2, 1))
+
+ set nolist
+endfunc
+
" vim: shiftwidth=2 sts=2 expandtab