GNU bug report logs - #78220
bug fix: viper-put-back and viper-Put-back do not set viper-d-com correctly

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Package: emacs;

Reported by: "Scott, Michael" <scott <at> cs.rochester.edu>

Date: Fri, 2 May 2025 20:34:02 UTC

Severity: normal

Done: Eli Zaretskii <eliz <at> gnu.org>

Bug is archived. No further changes may be made.

Full log


Message #8 received at 78220 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: kifer <at> cs.stonybrook.edu, "Scott, Michael" <scott <at> cs.rochester.edu>
Cc: 78220 <at> debbugs.gnu.org
Subject: Re: bug#78220: bug fix: viper-put-back and viper-Put-back do not set
 viper-d-com correctly
Date: Sat, 17 May 2025 11:06:43 +0300
Ping!  Michael, could you please look into this?

> Date: Fri, 2 May 2025 20:28:17 +0000
> From:  "Scott, Michael" via "Bug reports for GNU Emacs,
>  the Swiss army knife of text editors" <bug-gnu-emacs <at> gnu.org>
> 
> To: kifer <at> cs.stonybrook.edu, bug-gnu-emacs <at> gnu.org
> Subject: Viper version is 3.14.2 of July 4, 2013; viper-put-back and viper-Put-back do
> not correctly set viper-d-com
> From: mls <scott <at> scott.cs.rochester.edu>
> 
> Congratulations! You may have unearthed a bug in Viper!
> Please mail a concise, accurate summary of the problem to the address above.
> 
> In the code for viper-put-back and viper-Put-back, both in viper-cmd.el,
> viper-use-register is reset to nil before calling viper-set-destructive-command.
> It needs to happen after:
> 
>  sigma> diff -c viper-cmd.el viper-cmd_fix.el
>  *** viper-cmd.el Fri May  2 16:19:41 2025
>  --- viper-cmd_fix.el Fri May  2 16:20:37 2025
>  ***************
>  *** 3865,3871 ****
>         (setq viper-use-register nil)
>         (error viper-EmptyRegister reg))
>     (user-error viper-ViperBell)))
>  -     (setq viper-use-register nil)
>        (if (viper-end-with-a-newline-p text)
>    (progn
>     (end-of-line)
>  --- 3865,3870 ----
>  ***************
>  *** 3877,3882 ****
>  --- 3876,3882 ----
>        (set-marker (mark-marker) (point) (current-buffer))
>        (viper-set-destructive-command
>         (list 'viper-put-back val nil viper-use-register nil nil))
>  +     (setq viper-use-register nil)
>        (setq sv-point (point))
>        (viper-loop val (viper-yank text))
>        (setq chars-inserted (abs (- (point) sv-point))
>  ***************
>  *** 3915,3924 ****
>         (setq viper-use-register nil)
>         (error viper-EmptyRegister reg))
>     (user-error viper-ViperBell)))
>  -     (setq viper-use-register nil)
>        (if (viper-end-with-a-newline-p text) (beginning-of-line))
>        (viper-set-destructive-command
>         (list 'viper-Put-back val nil viper-use-register nil nil))
>        (set-marker (mark-marker) (point) (current-buffer))
>        (setq sv-point (point))
>        (viper-loop val (viper-yank text))
>  --- 3915,3924 ----
>         (setq viper-use-register nil)
>         (error viper-EmptyRegister reg))
>     (user-error viper-ViperBell)))
>        (if (viper-end-with-a-newline-p text) (beginning-of-line))
>        (viper-set-destructive-command
>         (list 'viper-Put-back val nil viper-use-register nil nil))
>  +     (setq viper-use-register nil)
>        (set-marker (mark-marker) (point) (current-buffer))
>        (setq sv-point (point))
>        (viper-loop val (viper-yank text))
>  sigma> 
> 
> With this fix, a command like “xp or “xP will repeat correctly with the dot command.
> 
> -------------------------------------------------------------------
> 
> Emacs  : GNU Emacs 29.4 (build 1, aarch64-apple-darwin21.6.0, NS appkit-2113.60 Version 12.6.6 (Build
> 21G646))
>  of 2024-08-02
> Package: Viper version is 3.14.2 of July 4, 2013
> 
> current state:
> ==============
> (setq
>  viper-vi-minibuffer-minor-mode nil
>  viper-insert-minibuffer-minor-mode nil
>  viper-vi-intercept-minor-mode t
>  viper-vi-local-user-minor-mode t
>  viper-vi-kbd-minor-mode t
>  viper-vi-global-user-minor-mode t
>  viper-vi-state-modifier-minor-mode t
>  viper-vi-diehard-minor-mode nil
>  viper-vi-basic-minor-mode t
>  viper-replace-minor-mode nil
>  viper-insert-intercept-minor-mode nil
>  viper-insert-local-user-minor-mode nil
>  viper-insert-kbd-minor-mode nil
>  viper-insert-global-user-minor-mode nil
>  viper-insert-state-modifier-minor-mode nil
>  viper-insert-diehard-minor-mode nil
>  viper-insert-basic-minor-mode nil
>  viper-emacs-intercept-minor-mode nil
>  viper-emacs-local-user-minor-mode nil
>  viper-emacs-kbd-minor-mode nil
>  viper-emacs-global-user-minor-mode nil
>  viper-emacs-state-modifier-minor-mode nil
>  viper-automatic-iso-accents nil
>  viper-special-input-method nil
>  viper-want-emacs-keys-in-insert t
>  viper-want-emacs-keys-in-vi t
>  viper-keep-point-on-undo nil
>  viper-no-multiple-ESC t
>  viper-electric-mode nil
>  viper-ESC-key "`"
>  viper-want-ctl-h-help nil
>  viper-ex-style-editing nil
>  viper-delete-backwards-in-replace nil
>  viper-vi-style-in-minibuffer t
>  viper-vi-state-hook 'viper-restore-cursor-type
>  viper-insert-state-hook '(turn-on-auto-fill viper-set-insert-cursor-type)
>  viper-replace-state-hook 'viper-restore-cursor-type
>  viper-emacs-state-hook 'viper-restore-cursor-type
>  ex-cycle-other-window t
>  ex-cycle-through-non-files nil
>  viper-expert-level 5
>  major-mode 'fundamental-mode
>  window-system 'ns
>  x-display-color-p t
>  viper-frame-parameters '((tool-bar-position . top) (parent-id)
>                           (explicit-name) (display . "scott.cs.rochester.edu")
>                           (visibility . t) (icon-name) (window-id . "1")
>                           (top . 25) (left . 1526)
>                           (buried-buffer-list #<buffer *Completions*> #<buffer
>                            *viper-ask-level*>)
>                           (buffer-list #<buffer .viper> #<buffer
>                            viper-cmd.el.gz> #<buffer viper-init.el.gz>
>                            #<buffer *Backtrace*> #<buffer *Help*> #<buffer
>                            *Buffer List*> #<buffer chap.tex> #<buffer
>                            CDex.tex<04_semantics>> #<buffer
>                            2025-05-01_Yuan_Yao> #<buffer attr_grammars.tex>
>                            #<buffer main.tex> #<buffer *scratch*> #<buffer
>                            2025-04-10_hbeadle> #<buffer response.txt> #<buffer
>                            notes> #<buffer 2025-04-29_rdong3+sree> #<buffer
>                            CDex.tex<03_names>> #<buffer notes.txt>)
>                           (unsplittable) (modeline . t) (width . 80)
>                           (height . 86) (name . "Emacs-arm64-11 <at> sigma")
>                           (last-focus-update . t)
>                           (viper-vi-state-cursor-color . "firebrick")
>                           (viper-saved-cursor-color-in-replace-mode .
>                            "firebrick")
>                           (environment) (font-parameter)
>                           (cursor-color . "firebrick")
>                           (background-mode . light) (display-type . color)
>                           (scroll-bar-background) (scroll-bar-foreground)
>                           (window-system . ns) (fullscreen) (alpha-background)
>                           (alpha) (scroll-bar-height . 15)
>                           (scroll-bar-width . 15) (cursor-type . box)
>                           (auto-lower) (auto-raise) (icon-type) (title)
>                           (buffer-predicate) (tool-bar-lines . 0)
>                           (tab-bar-lines . 0) (menu-bar-lines . 0)
>                           (no-accept-focus) (no-focus-on-map) (z-group)
>                           (parent-frame) (ns-transparent-titlebar)
>                           (ns-appearance) (undecorated) (no-special-glyphs)
>                           (right-fringe . 8) (left-fringe . 8) (line-spacing)
>                           (background-color . "alice blue")
>                           (foreground-color . "Black")
>                           (horizontal-scroll-bars)
>                           (vertical-scroll-bars . right)
>                           (bottom-divider-width . 0) (right-divider-width . 0)
>                           (child-frame-border-width)
>                           (internal-border-width . 2) (border-width . 0)
>                           (font .
>                            "-*-Monaco-regular-normal-normal-*-12-*-*-*-m-0-iso10646-1")
>                           (fontsize . 0) (font-backend mac-ct)
>                           (minibuffer . t))
>  viper-minibuffer-vi-face [face unspecified unspecified unspecified unspecified unspecified unspecified
> unspecified unspecified unspecified unspecified unspecified unspecified unspecified unspecified unspecified
> unspecified unspecified unspecified unspecified]
>  viper-minibuffer-insert-face [face unspecified unspecified unspecified unspecified unspecified unspecified
> unspecified unspecified unspecified unspecified unspecified unspecified unspecified unspecified unspecified
> unspecified unspecified unspecified unspecified]
>  viper-minibuffer-emacs-face [face unspecified unspecified unspecified unspecified unspecified unspecified
> unspecified unspecified unspecified unspecified unspecified unspecified unspecified unspecified unspecified
> unspecified unspecified unspecified unspecified]
>  )
> --text follows this line--
> 
> -- 
> Michael L. Scott (he/him)
> Arthur Gould Yates Professor of Engineering
> Computer Science Department, University of Rochester
> scott <at> cs.rochester.edu; 585-275-5671, 5478
> http://www.cs.rochester.edu/u/scott/ 




This bug report was last modified 14 days ago.

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