bug#6776: 24.0.50; nxml mode binds completion to c-return

[joakim]

nxml mode does this:
  (define-key map [C-return] 'nxml-complete)

which isnt exactly a bug, but its annoying. Its annoying because mode
specific completions should go somewhere consistent, such as M-tab, a
binding which I dont like either, but at least most modes put their
completion functionality there.

Heres some further info from nxml mode:

,----
| nxml-bind-meta-tab-to-complete-flag is a variable defined in `nxml-mode.el'.
| Its value is nil
| 
| Documentation:
| *Non-nil means bind M-TAB in `nxml-mode-map' to `nxml-complete'.
| C-return will be bound to `nxml-complete' in any case.
| M-TAB gets swallowed by many window systems/managers, and
| `documentation' will show M-TAB rather than C-return as the
| binding for `nxml-complete' when both are bound.  So it's better
| to bind M-TAB only when it will work.
`----

So the mode expresses an opinion that c-return should always complete,
but m-tab not always complete. I think it should be the other way
around. Esc-tab always works in all window managers etc, and I also
think completion should be solved once and for all in the core of Emacs,
not left to various modes to opinionate about.

Ok, the real reason I find this infuriating is that I want to use
c-return for other-window, which is now very inconvenient. The keymaps
are already polluted enough.


In GNU Emacs 24.0.50.12 (i686-pc-linux-gnu, GTK+ Version 2.18.9)
 of 2010-06-26 on localhost.localdomain
Windowing system distributor `Fedora Project', version 11.0.10802000
configured using `configure  '--with-imagemagick''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_US.utf8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default enable-multibyte-characters: t

Major mode: Emacs-Lisp

Minor modes in effect:
  diff-auto-refine-mode: t
  yas/global-mode: t
  yas/minor-mode: t
  erc-truncate-mode: t
  erc-track-mode: t
  erc-track-minor-mode: t
  erc-spelling-mode: t
  erc-ring-mode: t
  erc-pcomplete-mode: t
  erc-netsplit-mode: t
  erc-log-mode: t
  erc-button-mode: t
  erc-fill-mode: t
  erc-autojoin-mode: t
  erc-autoaway-mode: t
  ido-everywhere: t
  eldoc-mode: t
  erc-stamp-mode: t
  erc-match-mode: t
  delete-selection-mode: t
  show-paren-mode: t
  erc-smiley-mode: t
  erc-irccontrols-mode: t
  recentf-mode: t
  senator-minor-mode: t
  which-function-mode: t
  semantic-mru-bookmark-mode: t
  semantic-idle-summary-mode: t
  semantic-idle-scheduler-mode: t
  semantic-decoration-mode: t
  semantic-highlight-func-mode: t
  semantic-stickyfunc-mode: t
  shell-dirtrack-mode: t
  tooltip-mode: t
  mouse-wheel-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
  abbrev-mode: t

Recent input:
<right> <right> <right> <right> <right> <right> <right> 
<right> <right> <right> <right> <down> <down> <down> 
<down> C-a <up> <up> <up> <up> M-% " u <return> " - 
<return> C-a M-% C-g M-s C-g M-s M-r C-a <C-right> 
<right> C-SPC <C-right> <C-right> <right> <left> <left> 
<left> <left> <left> <left> <left> <left> <left> <left> 
M-w C-a M-% C-y <return> C-y <backspace> - <return> 
! C-x C-s <prior> <prior> C-p C-p C-p C-p C-p C-p C-p 
C-p C-p C-p C-p C-a C-SPC C-p C-SPC C-n C-SPC C-M-x 
C-SPC <next> C-v C-v C-p M-x n a r r o SPC t SPC SPC 
r SPC <return> M-< C-x h M-x s o r t SPC l SPC <return> 
C-n C-n C-n C-n <down> <down> <up> <up> <up> <up> <up> 
<up> <up> <up> <up> <up> <down> <up> C-s C-w C-w C-w 
C-e C-SPC C-a C-s C-w C-a C-g C-SPC C-e C-a C-g C-SPC 
C-e C-s M-w C-z M-< <next> <prior> M-< C-SPC C-e C-s 
M-y C-g C-h k C-s <C-return> <C-return> <C-return> 
<C-return> <C-return> C-x o <C-return> C-h k <C-return> 
<C-return> C-x o <tab> <return> C-x C-w C-g C-x 1 <C-right> 
<C-right> <C-left> C-r C-w C-w C-r C-r C-r C-r <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <up> <up> <up> <up> <up> <up> <up> <up> 
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up> 
<up> <up> <down> <down> <down> <down> <down> <down> 
C-a C-SPC C-e M-w C-a M-x r e p o SPC r SPC e m SPC 
SPC b SPC <return>

Recent messages:
Quit
Type C-x 1 to delete the help window, C-M-v to scroll help.
Cannot complete in this context [6 times]
mouse-2, RET: find function's definition
uncompressing nxml-mode.el.gz...done
Loading semanticdb-file...done [2 times]
Quit
Mark saved where search started
Mark set
Making completion list... [2 times]

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lisp-mode register page menu-bar rfn-eshadow timer select scroll-bar
mldrag mouse jit-lock font-lock syntax facemenu font-core frame cham
georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao
korean japanese hebrew greek romanian slovak czech european ethiopic
indian cyrillic chinese case-table epa-hook jka-cmpr-hook help simple
abbrev loaddefs button minibuffer faces cus-face files text-properties
overlay md5 base64 format env code-pages mule custom widget
hashtable-print-readable backquote make-network-process dbusbind
dynamic-setting system-font-setting font-render-setting gtk x-toolkit x
multi-tty emacs)
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Joakim Verona