add ... alias for :[_]

lib/configuration/command_configuration.ml

@@ -705,6 +705,11 @@ let create
       parse_templates ~warn_for_missing_file_in_dir:true omega templates
     | _ -> assert false
   in
+  let specifications =
+    List.map specifications ~f:(fun ({ match_template; _ } as spec) ->
+        { spec with match_template =
+                      String.substr_replace_all match_template ~pattern:"..." ~with_:":[_]" })
+  in
   let file_filters =
     match anonymous_arguments with
     | None -> file_filters

test/common/test_cli.ml

@@ -1109,6 +1109,18 @@ let%expect_test "warn_on_match_template_starts_with_everything_hole" =
     world
     WARNING: The match template starts with a :[hole]. You almost never want to start a template with :[hole], since it matches everything including newlines up to the part that comes after it. This can make things slow. :[[hole]] might be what you're looking for instead, like when you want to match an assignment foo = bar(args) on a line, use :[[var]] = bar(args). :[hole] is typically useful inside balanced delimiters. |}]
 
+let%expect_test "test_ellipses" =
+  let source = "foo(bar)" in
+  let match_ = "...(...)" in
+  let rewrite = "delete" in
+  let command_args =
+    Format.sprintf "-stdin -sequential -stdout '%s' '%s' -f .c" match_ rewrite
+  in
+  let command = Format.sprintf "%s %s" binary_path command_args in
+  let result = read_expect_stdin_and_stdout command source in
+  print_string result;
+  [%expect{|delete|}]
+
 let%expect_test "test_valid_toml" =
   let source = "main(void)\n" in
   let config = "example" ^/ "toml" ^/ "plain" ^/ "config.toml" in