[BUG]: zle-line-pre-redraw breaks vi-repeat-change

[BUG]: zle-line-pre-redraw breaks vi-repeat-change

[Roman Perepelitsa]

If zle-line-pre-redraw is defined, vi-repeat-change behaves as if the
numeric argument was always 1.

To reproduce from `zsh -f`:

  % function zle-line-pre-redraw() {}
  % zle -N zle-line-pre-redraw
  % bindkey -v
  % 123456<ESC><2X><.>

The last line in more detail:

  - "123456" is self-insert
  - ESC is vi-cmd-mode
  - "2X" is vi-backward-delete-char with NUMERIC = 2
  - "." is vi-repeat-change

Expected: BUFFER contains "16".

Actual: BUFFER contains "126".

The actual behavior is unchanged if <.> is replaced with <3.>. The
expected BUFFER in this case is "6".

Roman.

Re: [BUG]: zle-line-pre-redraw breaks vi-repeat-change

[Peter Stephenson]

> On 07 October 2020 at 13:49 Roman Perepelitsa <roman.perepelitsa@gmail.com> wrote:
> 
> 
> If zle-line-pre-redraw is defined, vi-repeat-change behaves as if the
> numeric argument was always 1.

I wonder if we need to change zlecallhook().

pws

diff --git a/Src/Zle/zle_main.c b/Src/Zle/zle_main.c
index 8c0534708..1622d8a6b 100644
--- a/Src/Zle/zle_main.c
+++ b/Src/Zle/zle_main.c
@@ -1067,6 +1067,7 @@ redrawhook(void)
 	int old_incompfunc = incompfunc;
 	char *args[2];
 	Thingy lbindk_save = lbindk, bindk_save = bindk;
+	struct modifier zmod_save = zmod;
 
 	refthingy(lbindk_save);
 	refthingy(bindk_save);
@@ -1094,6 +1095,7 @@ redrawhook(void)
 	 * restore lastcmd manually so that we don't mess up the global state
 	 */
 	lastcmd = lastcmd_prev;
+	zmod = zmod_save;
     }
 }

Re: [BUG]: zle-line-pre-redraw breaks vi-repeat-change

[Roman Perepelitsa]

On Wed, Oct 7, 2020 at 3:25 PM Peter Stephenson
<p.w.stephenson@ntlworld.com> wrote:
>
> I wonder if we need to change zlecallhook().

After applying this patch I can still reproduce the issue.

Roman.

Re: [BUG]: zle-line-pre-redraw breaks vi-repeat-change

[Roman Perepelitsa]

[-- Attachment #1: Type: text/plain, Size: 869 bytes --]

On Wed, Oct 7, 2020 at 2:49 PM Roman Perepelitsa
<roman.perepelitsa@gmail.com> wrote:
>
> If zle-line-pre-redraw is defined, vi-repeat-change behaves as if the
> numeric argument was always 1.
>
> To reproduce from `zsh -f`:
>
>   % function zle-line-pre-redraw() {}
>   % zle -N zle-line-pre-redraw
>   % bindkey -v
>   % 123456<ESC><2X><.>
>
> The last line in more detail:
>
>   - "123456" is self-insert
>   - ESC is vi-cmd-mode
>   - "2X" is vi-backward-delete-char with NUMERIC = 2
>   - "." is vi-repeat-change
>
> Expected: BUFFER contains "16".
>
> Actual: BUFFER contains "126".
>
> The actual behavior is unchanged if <.> is replaced with <3.>. The
> expected BUFFER in this case is "6".

GammaFunction@vivaldi.net (CC-ed) has sent
https://github.com/zsh-users/zsh/pull/69 that fixes the two tests I've
described above. Here's the patch from the PR.

Roman.

[-- Attachment #2: restore-vi-repeat.patch.txt --]
[-- Type: text/plain, Size: 664 bytes --]

diff --git a/Src/Zle/zle_main.c b/Src/Zle/zle_main.c
index 8c0534708..0561c3b3b 100644
--- a/Src/Zle/zle_main.c
+++ b/Src/Zle/zle_main.c
@@ -1065,6 +1065,7 @@ redrawhook(void)
 	int saverrflag = errflag, savretflag = retflag;
 	int lastcmd_prev = lastcmd;
 	int old_incompfunc = incompfunc;
+	int old_viinrepeat = viinrepeat;
 	char *args[2];
 	Thingy lbindk_save = lbindk, bindk_save = bindk;
 
@@ -1079,6 +1080,7 @@ redrawhook(void)
 	incompfunc = 0;
 	execzlefunc(initthingy, args, 1, 0);
 	incompfunc = old_incompfunc;
+	viinrepeat = old_viinrepeat;
 
 	/* Restore errflag and retflag as zlecallhook() does */
 	errflag = saverrflag | (errflag & ERRFLAG_INT);