Subject: Re: bug#38646: 26.3; wrong cursor display with scroll bar settings

From: Eli Zaretskii <[email-masked]>
Date: Tue, 17 Dec 2019 09:54:59 +0200

On December 17, 2019 9:00:19 AM GMT+02:00, [email-masked] wrote:
> 
> Evaluating the form1 below with C-x C-e, the text cursor is displayed
> at
> the beginning of the line.
> 
> ;; form1
> (set-frame-parameter nil 'scroll-bar-width (window-scroll-bar-width))
> 
> Evaluating the form2 below with C-x C-e, the text cursor is displayed
> at
> the same column of the first line of the window, or not displayed when
> the first line has shorter length.
> 
> ;; form2
> (set-frame-parameter nil 'scroll-bar-height
> (window-scroll-bar-height))
> 
> 
> 
> In GNU Emacs 26.3 (build 1, x86_64-w64-mingw32)
>  of 2019-08-29 built on CIRROCUMULUS
> Repository revision: 96dd0196c28bc36779584e47fffcca433c9309cd
> Windowing system distributor 'Microsoft Corp.', version 6.3.9600
> Recent messages:
> 
> Configured using:
>  'configure --without-dbus --host=x86_64-w64-mingw32
>  --without-compress-install 'CFLAGS=-O2 -static -g3''
> 
> Configured features:
> XPM JPEG TIFF GIF PNG RSVG SOUND NOTIFY ACL GNUTLS LIBXML2 ZLIB
> TOOLKIT_SCROLL_BARS THREADS LCMS2
> 
> Important settings:
>   value of $LANG: JPN
>   locale-coding-system: cp932
> 
> Major mode: Lisp Interaction
> 
> Minor modes in effect:
>   tooltip-mode: t
>   global-eldoc-mode: t
>   eldoc-mode: t
>   electric-indent-mode: t
>   mouse-wheel-mode: t
>   tool-bar-mode: t
>   menu-bar-mode: t
>   file-name-shadow-mode: t
>   global-font-lock-mode: t
>   font-lock-mode: t
>   blink-cursor-mode: t
>   auto-composition-mode: t
>   auto-encryption-mode: t
>   auto-compression-mode: t
>   line-number-mode: t
>   transient-mark-mode: t
> 
> Load-path shadows:
> None found.
> 
> Features:
> (network-stream nsm starttls tls gnutls mailalias smtpmail auth-source
> cl-seq eieio eieio-core cl-macs eieio-loaddefs misearch multi-isearch
> help-mode pp shadow sort mail-extr emacsbug message rmc puny seq
> byte-opt gv bytecomp byte-compile cconv cl-loaddefs cl-lib dired
> dired-loaddefs format-spec rfc822 mml easymenu mml-sec password-cache
> epa derived epg epg-config gnus-util rmail rmail-loaddefs mm-decode
> mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader
> sendmail rfc2047 rfc2045 ietf-drums mm-util mail-prsvr mail-utils
> elec-pair time-date mule-util japan-util tooltip eldoc electric
> uniquify
> ediff-hook vc-hooks lisp-float-type mwheel dos-w32 ls-lisp disp-table
> term/w32-win w32-win w32-vars term/common-win tool-bar dnd fontset
> image
> regexp-opt fringe tabulated-list replace newcomment text-mode
> elisp-mode
> lisp-mode prog-mode register page menu-bar rfn-eshadow isearch timer
> select scroll-bar mouse jit-lock font-lock syntax facemenu font-core
> term/tty-colors frame cl-generic cham georgian utf-8-lang misc-lang
> vietnamese tibetan thai tai-viet lao korean japanese eucjp-ms cp51932
> hebrew greek romanian slovak czech european ethiopic indian cyrillic
> chinese composite charscript charprop case-table epa-hook
> jka-cmpr-hook
> help simple abbrev obarray minibuffer cl-preloaded nadvice loaddefs
> button faces cus-face macroexp files text-properties overlay sha1 md5
> base64 format env code-pages mule custom widget
> hashtable-print-readable
> backquote threads w32notify w32 lcms2 multi-tty make-network-process
> emacs)
> 
> Memory information:
> ((conses 16 110806 18632)
>  (symbols 48 21122 1)
>  (miscs 40 60 319)
>  (strings 32 32317 1814)
>  (string-bytes 1 850598)
>  (vectors 16 16474)
>  (vector-slots 8 593187 13322)
>  (floats 8 56 354)
>  (intervals 56 530 0)
>  (buffers 992 15))

Thanks, this appears to have been fixed already: I can reproduce in Emacs 26.3, but not in the current master branch (which will become Emacs 27.1).  In the master branch, the cursor stays put after the closing parenthesis following the evaluation of both forms.