bug#73813: 30.0.91; icomplete-mode keymap unusable in xterm for for/backward completions

[Van Ly via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>]

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Hello,

The two keymaps "C-." and "C-," for for/backward icomplete-mode
completions do not work in xterm where emacs is run without the
graphical user interface.

See,

> icomplete.el:177:183:
> (defvar-keymap icomplete-minibuffer-map
>   :doc "Keymap used by `icomplete-mode' in the minibuffer."
>   "C-M-i" #'icomplete-force-complete
>   "C-j"   #'icomplete-force-complete-and-exit
>   "C-."   #'icomplete-forward-completions
>   "C-,"   #'icomplete-backward-completions
>   "<remap> <minibuffer-complete-and-exit>" #'icomplete-ret)

To demonstrate

 1. start at xterm shell prompt, emacs --color=no -nw -Q
 2. use, M-x icomplete-mode
 3. use, M-x man RET fe

the keymaps "C-." and "C-," are received as "." and "," when intending
to move among available icomplete completions, and the presented
completions are unexpectedly lost.

Perhaps, "C-s" and "C-r" could be used in icomplete-mode since they are
received as "C-s" and "C-r" but carry the search for/backward meaning.
The documentation says fido-mode uses the "C-s" and "C-r" keymaps.


The following keymap is a possible workaround



> (keymap-set icomplete-minibuffer-map "C-c ." #'icomplete-forward-completions)
> (keymap-set icomplete-minibuffer-map "C-c ," #'icomplete-backward-completions)




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From: xxx@xxx.mail-host-address-is-not-set
To: bug-gnu-emacs@gnu.org
Subject: 30.0.91; icomplete-mode keymap back/forward completions unusable in xterm
X-Debbugs-Cc: 
--text follows this line--




In GNU Emacs 30.0.91 (build 2, x86_64--netbsd, X toolkit, cairo version
 1.18.0) of 2024-09-27 built on xxx
System Description: NetBSD xxx 10.0_STABLE NetBSD 10.0_STABLE (GENERIC) #0: Wed Oct  9 15:29:37 UTC 2024  mkrepro@mkrepro.NetBSD.org:/usr/src/sys/arch/amd64/compile/GENERIC amd64

Configured using:
 'configure --srcdir=/u/xxx/src/emacs/30.0.91 --localstatedir=/var
 --disable-autodepend --with-native-compilation --without-ns --with-rsvg
 --without-imagemagick --without-xaw3d --without-toolkit-scroll-bars
 --x-includes=/usr/X11R7/include --x-libraries=/usr/X11R7/lib
 --with-x-toolkit=lu --prefix=/usr/local --build=x86_64--netbsd
 --host=x86_64--netbsd --infodir=/usr/pkg/info --mandir=/usr/pkg/man
 --enable-option-checking=yes 'CFLAGS=-O2 -I/usr/pkg/include/cairo
 -I/usr/pkg/include -I/usr/include -I/usr/pkg/include/freetype2
 -I/usr/pkg/include/glib-2.0 -I/usr/pkg/include/gio-unix-2.0
 -I/usr/pkg/lib/glib-2.0/include -I/usr/X11R7/include
 -I/usr/pkg/include/harfbuzz -I/usr/X11R7/include/libdrm'
 'CPPFLAGS=-DTERMINFO -I/usr/pkg/include -I/usr/include
 -I/usr/pkg/include/freetype2 -I/usr/pkg/include/glib-2.0
 -I/usr/pkg/include/gio-unix-2.0 -I/usr/pkg/lib/glib-2.0/include
 -I/usr/X11R7/include -I/usr/pkg/include/harfbuzz
 -I/usr/X11R7/include/libdrm' 'LDFLAGS=-Wl,-R/usr/pkg/gcc13/lib
 -Wl,-zrelro -L/usr/pkg/lib -lcairo -L/usr/lib -Wl,-R/usr/lib
 -Wl,-R/usr/pkg/lib -L/usr/X11R7/lib -Wl,-R/usr/X11R7/lib
 -Wl,-R/usr/pkg/lib -L/usr/pkg/lib -lgnutls''

Configured features:
ACL CAIRO DBUS FREETYPE GIF GLIB GNUTLS GSETTINGS HARFBUZZ JPEG LCMS2
LIBOTF LIBXML2 MODULES NATIVE_COMP NOTIFY KQUEUE PDUMPER PNG RSVG SOUND
SQLITE3 THREADS TIFF TREE_SITTER WEBP X11 XDBE XIM XINPUT2 XPM LUCID
ZLIB

Important settings:
  value of $LC_COLLATE: en_AU.UTF-8
  value of $LC_CTYPE: en_AU.UTF-8
  value of $LC_MESSAGES: en_AU.UTF-8
  value of $LC_MONETARY: en_AU.UTF-8
  value of $LC_NUMERIC: en_AU.UTF-8
  value of $LC_TIME: en_AU.UTF-8
  value of $LANG: en_AU.UTF-8
  locale-coding-system: utf-8-unix

Major mode: Lisp Interaction

Minor modes in effect:
  icomplete-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
  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
sendmail rfc2047 rfc2045 ietf-drums mm-util mail-prsvr mail-utils man
ansi-color cus-start cus-load icomplete cl-loaddefs cl-lib term/xterm
xterm byte-opt gv bytecomp byte-compile 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
kqueue lcms2 dynamic-setting system-font-setting font-render-setting
cairo x-toolkit xinput2 x multi-tty move-toolbar make-network-process
native-compile emacs)

Memory information:
((conses 16 73261 11139) (symbols 48 7379 0) (strings 32 18162 1988)
 (string-bytes 1 507642) (vectors 16 7683)
 (vector-slots 8 95796 10361) (floats 8 28 11897) (intervals 56 302 0)
 (buffers 992 10))

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-- 
vl