# HG changeset patch
# User Bram Moolenaar <Bram@vim.org>
# Date 1603999804 -3600
# Node ID f945413264d78835b407b08a8159d97c3d629539
# Parent  9ba58f7e5ae23f42b63c8608cc57bb52c3800fdb
patch 8.2.1923: Vim9: "filter" command modifier doesn't work

Commit: https://github.com/vim/vim/commit/4f6b6ed208a15552f0eb7f27b7ca945f59f22c1d
Author: Bram Moolenaar <Bram@vim.org>
Date:   Thu Oct 29 20:24:34 2020 +0100

    patch 8.2.1923: Vim9: "filter" command modifier doesn't work

    Problem:    Vim9: "filter" command modifier doesn't work.
    Solution:   Check for space on char before argument. (closes https://github.com/vim/vim/issues/7216,
                closes #7222)

diff --git a/src/ex_docmd.c b/src/ex_docmd.c
--- a/src/ex_docmd.c
+++ b/src/ex_docmd.c
@@ -2763,7 +2763,7 @@ parse_command_modifiers(
 			    }
 #ifdef FEAT_EVAL
 			    // Avoid that "filter(arg)" is recognized.
-			    if (in_vim9script() && !VIM_ISWHITE(*p))
+			    if (in_vim9script() && !VIM_ISWHITE(p[-1]))
 				break;
 #endif
 			    if (skip_only)
diff --git a/src/testdir/test_vim9_cmd.vim b/src/testdir/test_vim9_cmd.vim
--- a/src/testdir/test_vim9_cmd.vim
+++ b/src/testdir/test_vim9_cmd.vim
@@ -312,6 +312,18 @@ def Test_filter_is_not_modifier()
   assert_equal([#{x: 3, y: 4}], tags)
 enddef
 
+def Test_filter_is_recognized()
+  var lines =<< trim END
+    final expected = "\nType Name Content\n  c  \"c   piyo"
+    @a = 'hoge'
+    @b = 'fuga'
+    @c = 'piyo'
+
+    assert_equal(execute('filter /piyo/ registers abc'), expected)
+  END
+  CheckDefAndScriptSuccess(lines)
+enddef
+
 def Test_eval_command()
   var from = 3
   var to = 5
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1923,
+/**/
     1922,
 /**/
     1921,