GNU logs - #62868, boring messages

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Subject: bug#62868: 30.0.50; wrong return value of `split-string-shell-command'
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I often get wrong return value from `split-string-shell-command', for
example:

  (split-string-shell-command "ffmpeg -i aaa.flv -ss 3 -vf
  \"fps=10,scale=320:-1:flags=lanczos,split[s0][s1];[s0]palettegen[p];[s1][p]paletteuse\"
  -loop 0 bbb.gif")

will return value of:

  ("[s1][p]paletteuse -loop 0 bbb.gif")


Is this a bug, or am I using it wrong?







In GNU Emacs 30.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version
 3.24.37, cairo version 1.17.8) of 2023-04-05 built on svarch
Repository revision: 830bf66dadbb4b9b9393ade53b890b5497bdf479
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12101008
System Description: Arch Linux

Configured features:
ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GPM GSETTINGS HARFBUZZ JPEG
JSON LCMS2 LIBSYSTEMD LIBXML2 MODULES NOTIFY INOTIFY PDUMPER PNG RSVG
SECCOMP SOUND SQLITE3 THREADS TIFF TOOLKIT_SCROLL_BARS TREE_SITTER WEBP
X11 XDBE XIM XINPUT2 XPM GTK3 ZLIB

Important settings:
  value of $LC_ALL: en_US.UTF-8
  value of $LC_COLLATE: C
  value of $LC_CTYPE: zh_CN.UTF-8
  value of $LANG: en_US.UTF-8
  value of $XMODIFIERS: @im=fcitx
  locale-coding-system: utf-8-unix

Major mode: Lisp Interaction

Minor modes in effect:
  shell-dirtrack-mode: t
  tooltip-mode: t
  global-eldoc-mode: t
  eldoc-mode: t
  show-paren-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
  line-number-mode: t
  indent-tabs-mode: t
  transient-mark-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t

Load-path shadows:
None found.

Features:
(shadow sort mail-extr emacsbug message mailcap yank-media puny dired
dired-loaddefs rfc822 mml mml-sec password-cache epa derived epg rfc6068
epg-config gnus-util text-property-search time-date mm-decode mm-bodies
mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader sendmail
rfc2047 rfc2045 ietf-drums mm-util mail-prsvr mail-utils shell subr-x
pcomplete comint ansi-osc ansi-color ring vc-git diff-mode easy-mmode
vc-dispatcher cl-loaddefs cl-lib rmc iso-transl tooltip cconv eldoc
paren electric uniquify ediff-hook vc-hooks lisp-float-type elisp-mode
mwheel term/x-win x-win term/common-win x-dnd tool-bar dnd fontset image
regexp-opt fringe tabulated-list replace newcomment text-mode lisp-mode
prog-mode register page tab-bar menu-bar rfn-eshadow isearch easymenu
timer select scroll-bar mouse jit-lock font-lock syntax font-core
term/tty-colors frame minibuffer nadvice seq simple cl-generic
indonesian philippine 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 emoji-zwj charscript charprop case-table epa-hook
jka-cmpr-hook help abbrev obarray oclosure cl-preloaded button loaddefs
theme-loaddefs faces cus-face macroexp files window text-properties
overlay sha1 md5 base64 format env code-pages mule custom widget keymap
hashtable-print-readable backquote threads dbusbind inotify lcms2
dynamic-setting system-font-setting font-render-setting cairo
move-toolbar gtk x-toolkit xinput2 x multi-tty make-network-process
emacs)

Memory information:
((conses 16 46339 12804)
 (symbols 48 6314 0)
 (strings 32 16999 1229)
 (string-bytes 1 496780)
 (vectors 16 11466)
 (vector-slots 8 168899 11728)
 (floats 8 25 31)
 (intervals 56 269 0)
 (buffers 984 12))

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From: help-debbugs@HIDDEN (GNU bug Tracking System)
To: lorniu <lorniu@HIDDEN>
Subject: bug#62868: Acknowledgement (30.0.50; wrong return value of
 `split-string-shell-command')
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Message sent to bug-gnu-emacs@HIDDEN:

Subject: bug#62868: 30.0.50; wrong return value of `split-string-shell-command'
Resent-From: Eli Zaretskii <eliz@HIDDEN>
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In-Reply-To: <878rettcu9.fsf@HIDDEN> (message from lorniu on Sat, 15 Apr
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> From: lorniu <lorniu@HIDDEN>
> Date: Sat, 15 Apr 2023 22:54:54 +0800
> 
> I often get wrong return value from `split-string-shell-command', for
> example:
> 
>   (split-string-shell-command "ffmpeg -i aaa.flv -ss 3 -vf
>   \"fps=10,scale=320:-1:flags=lanczos,split[s0][s1];[s0]palettegen[p];[s1][p]paletteuse\"
>   -loop 0 bbb.gif")
> 
> will return value of:
> 
>   ("[s1][p]paletteuse -loop 0 bbb.gif")
> 
> 
> Is this a bug, or am I using it wrong?

Bug.  It doesn't support quoted semi-colons.

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