# HG changeset patch
# User Bram Moolenaar <Bram@vim.org>
# Date 1571512504 -7200
# Node ID 105c6cf8b2669d8062c80d27f4acca8bac4f3dd0
# Parent  1480cf360326f038b2ed02ff09e02cb7b354a248
patch 8.1.2187: error for bad regexp even though regexp is not used

Commit: https://github.com/vim/vim/commit/b40c2576d4e0e2dd2c580414c45947d88556d76d
Author: Bram Moolenaar <Bram@vim.org>
Date:   Sat Oct 19 21:01:05 2019 +0200

    patch 8.1.2187: error for bad regexp even though regexp is not used

    Problem:    Error for bad regexp even though regexp is not used when writing
                a file. (Arseny Nasokin)
    Solution:   Ignore regexp errors. (closes #5059)

diff --git a/src/cmdexpand.c b/src/cmdexpand.c
--- a/src/cmdexpand.c
+++ b/src/cmdexpand.c
@@ -1976,6 +1976,8 @@ ExpandFromContext(
 	flags |= EW_KEEPALL;
     if (options & WILD_SILENT)
 	flags |= EW_SILENT;
+    if (options & WILD_NOERROR)
+	flags |= EW_NOERROR;
     if (options & WILD_ALLLINKS)
 	flags |= EW_ALLLINKS;
 
diff --git a/src/ex_docmd.c b/src/ex_docmd.c
--- a/src/ex_docmd.c
+++ b/src/ex_docmd.c
@@ -4211,7 +4211,8 @@ expand_filename(
 		else /* n == 2 */
 		{
 		    expand_T	xpc;
-		    int		options = WILD_LIST_NOTFOUND|WILD_ADD_SLASH;
+		    int		options = WILD_LIST_NOTFOUND
+					       | WILD_NOERROR | WILD_ADD_SLASH;
 
 		    ExpandInit(&xpc);
 		    xpc.xp_context = EXPAND_FILES;
diff --git a/src/testdir/test_writefile.vim b/src/testdir/test_writefile.vim
--- a/src/testdir/test_writefile.vim
+++ b/src/testdir/test_writefile.vim
@@ -1,4 +1,4 @@
-" Tests for the writefile() function.
+" Tests for the writefile() function and some :write commands.
 
 func Test_writefile()
   let f = tempname()
@@ -16,6 +16,11 @@ func Test_writefile()
   call delete(f)
 endfunc
 
+func Test_writefile_ignore_regexp_error()
+  write Xt[z-a]est.txt
+  call delete('Xt[z-a]est.txt')
+endfunc
+
 func Test_writefile_fails_gently()
   call assert_fails('call writefile(["test"], "Xfile", [])', 'E730:')
   call assert_false(filereadable("Xfile"))
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2187,
+/**/
     2186,
 /**/
     2185,