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* bug#67210: 30.0.50; completing-read with REQUIRE-MATCH=t can sometimes return a non-match
@ 2023-11-15 20:25 Spencer Baugh
  2023-11-16  1:29 ` Drew Adams
  2023-11-16  5:38 ` Eli Zaretskii
  0 siblings, 2 replies; 11+ messages in thread
From: Spencer Baugh @ 2023-11-15 20:25 UTC (permalink / raw)
  To: 67210


1. emacs -Q
2. (completing-read ":" '("foo") nil t '("foobar" . 3))
3. RET
4. See "foobar", i.e. "foobar" was accepted as input despite not being
   in the collection we're completing over.

I believe this is because
(completion-try-completion "foobar" '("foo") nil 3)
returns t, which completion--do-completion interprets as meaning that
the input string is an "Exact and unique match."

That t is returned because
(completion-emacs22-try-completion "foobar" '("foo") nil 3)
returns t.

So perhaps completion--do-completion is wrong in assuming that a t
return value from completion-try-completion indicates an "Exact and
unique match."?

Or perhaps completion-emacs22-try-completion is violating the spec of
completion-try-completion, and should be returning nil in this case?


In GNU Emacs 30.0.50 (build 5, x86_64-pc-linux-gnu, GTK+ Version
 3.22.30, cairo version 1.15.12) of 2023-11-15 built on igm-qws-u22796a
Repository revision: 1a1f47e4a1fb70e6810f9eabd0f1826b71a2bcb0
Repository branch: project-history
Windowing system distributor 'The X.Org Foundation', version 11.0.12011000
System Description: Rocky Linux 8.8 (Green Obsidian)

Configured using:
 'configure --enable-checking=yes,glyphs --enable-check-lisp-object-type
 'CFLAGS=-O0 -g3' -C --with-gif=ifavailable'

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

Important settings:
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8-unix

Major mode: Lisp Interaction

Minor modes in effect:
  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
  minibuffer-regexp-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 subr-x mm-decode
mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader
cl-loaddefs cl-lib sendmail rfc2047 rfc2045 ietf-drums mm-util
mail-prsvr mail-utils 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 touch-screen 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
dynamic-setting system-font-setting font-render-setting cairo gtk
x-toolkit xinput2 x multi-tty move-toolbar make-network-process emacs)

Memory information:
((conses 16 64205 13453) (symbols 48 9538 0) (strings 32 22015 1421)
 (string-bytes 1 665593) (vectors 16 10318)
 (vector-slots 8 156970 17260) (floats 8 37 13) (intervals 56 253 0)
 (buffers 984 10))





^ permalink raw reply	[flat|nested] 11+ messages in thread

end of thread, other threads:[~2023-11-17 17:35 UTC | newest]

Thread overview: 11+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2023-11-15 20:25 bug#67210: 30.0.50; completing-read with REQUIRE-MATCH=t can sometimes return a non-match Spencer Baugh
2023-11-16  1:29 ` Drew Adams
2023-11-16 14:47   ` Spencer Baugh
2023-11-16 17:13     ` Drew Adams
2023-11-16  5:38 ` Eli Zaretskii
2023-11-16 15:04   ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-11-16 16:36     ` Spencer Baugh
2023-11-16 18:24       ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-11-17 16:06       ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-11-17 17:18         ` Spencer Baugh
2023-11-17 17:35           ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors

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