bug#7071: 23.2; ld-script-mode grabs .xs, and probably shouldn't

[Reuben Thomas]

I just found the following in auto-mode-alist:

 ("\\.x[bdsru]?[cn]?\\'" . ld-script-mode)

which explains why when I open a .xs file, it ends up in ld-script-mode.
I had never even heard of ld scripts. I’m no Perl programmer, but I had
heard of Perl .xs files (which for the uninitiated are basically C, but
with special annotations for writing bindings to Perl).

I suggest that .xs should be awarded to perl-mode.


In GNU Emacs 23.2.1 (i486-pc-linux-gnu, GTK+ Version 2.20.1)
 of 2010-06-13 on mord, modified by Debian
Windowing system distributor `The X.Org Foundation', version 11.0.10706000
configured using `configure  '--build' 'i486-linux-gnu' '--build' 
'i486-linux-gnu' '--prefix=/usr' '--sharedstatedir=/var/lib' 
'--libexecdir=/usr/lib' '--localstatedir=/var/lib' '--infodir=/usr/share/info' 
'--mandir=/usr/share/man' '--with-pop=yes' 
'--enable-locallisppath=/etc/emacs23:/etc/emacs:/usr/local/share/emacs/23.2/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/23.2/site-lisp:/usr/share/emacs/site-lisp:/usr/share/emacs/23.2/leim'
 '--with-x=yes' '--with-x-toolkit=gtk' '--with-toolkit-scroll-bars' 
'build_alias=i486-linux-gnu' 'CFLAGS=-DDEBIAN -g -O2' 'LDFLAGS=-g' 'CPPFLAGS=''

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_GB.UTF-8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default enable-multibyte-characters: t

Major mode: Help

Minor modes in effect:
  show-paren-mode: t
  savehist-mode: t
  minibuffer-electric-default-mode: t
  iswitchb-mode: t
  icomplete-mode: t
  global-auto-revert-mode: t
  desktop-save-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-encryption-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t
  view-mode: t

Recent input:
C-p C-p C-s s e l f M-< C-s L i b X M L _ i n i t _ 
p a r s e r C-a <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> <help-echo> <down-mouse-1> <mouse-1> C-x 
C-SPC C-x C-SPC C-x b <return> C-s p a r s e _ w e 
l l <backspace> <backspace> <backspace> <backspace> 
b a l a n c e d M-< C-s d o m p <backspace> P a r s 
e W e l l M-< C-s p <backspace> w e l l b a l a n c 
e d C-a <up> <up> <up> <up> <up> <up> <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> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <up> <up> <up> <up> <up> 
<up> <up> C-e <return> x m l D o c P t r SPC d o c 
; C-x C-s C-h m C-x C-g C-x b <return> M-x c c - m 
o d e <backspace> <backspace> <backspace> <backspace> 
<backspace> <backspace> - m o d e <return> C-h v a 
u t o - m o d e - a l i s t <return> C-s x s C-s C-s 
C-s C-s C-s C-s C-a M-< C-s l d - s c r i p t C-a C-k 
<down-mouse-1> <mouse-movement> <mouse-1> M-x r e p 
o r t - e m a c s - b u g <return>

Recent messages:
Mark saved where search started
Mark set
Mark saved where search started
Saving file /home/rrt/repo/XML-LibXML/LibXML.xs...
Wrote /home/rrt/repo/XML-LibXML/LibXML.xs
Type "q" to restore this window, C-v to scroll help.
Mark saved where search started
Mark set
Mark saved where search started
Read only text copied to kill ring

Load-path shadows:
/home/rrt/local/share/emacs/site-lisp/lua-mode hides 
/usr/share/emacs23/site-lisp/lua-mode/lua-mode
/home/rrt/.emacs.d/elpa/dictionary-1.8.7/link hides 
/usr/share/emacs23/site-lisp/dictionary-el/link
/home/rrt/.emacs.d/elpa/dictionary-1.8.7/connection hides 
/usr/share/emacs23/site-lisp/dictionary-el/connection
/home/rrt/.emacs.d/elpa/dictionary-1.8.7/dictionary-init hides 
/usr/share/emacs23/site-lisp/dictionary-el/dictionary-init
/home/rrt/.emacs.d/elpa/dictionary-1.8.7/dictionary hides 
/usr/share/emacs23/site-lisp/dictionary-el/dictionary
/usr/share/emacs23/site-lisp/css-mode/css-mode hides 
/usr/share/emacs/site-lisp/css-mode/css-mode
/usr/share/emacs/23.2/site-lisp/auctex/tex-info hides 
/usr/share/emacs/site-lisp/auctex/tex-info
/usr/share/emacs/23.2/site-lisp/auctex/context-nl hides 
/usr/share/emacs/site-lisp/auctex/context-nl
/usr/share/emacs/23.2/site-lisp/auctex/context-en hides 
/usr/share/emacs/site-lisp/auctex/context-en
/usr/share/emacs/23.2/site-lisp/auctex/latex hides 
/usr/share/emacs/site-lisp/auctex/latex
/usr/share/emacs/23.2/site-lisp/auctex/tex-mik hides 
/usr/share/emacs/site-lisp/auctex/tex-mik
/usr/share/emacs23/site-lisp/dictionary-el/lpath hides 
/usr/share/emacs/site-lisp/auctex/lpath
/usr/share/emacs/23.2/site-lisp/auctex/tex-buf hides 
/usr/share/emacs/site-lisp/auctex/tex-buf
/usr/share/emacs/23.2/site-lisp/auctex/tex-jp hides 
/usr/share/emacs/site-lisp/auctex/tex-jp
/usr/share/emacs/23.2/site-lisp/auctex/tex-bar hides 
/usr/share/emacs/site-lisp/auctex/tex-bar
/usr/share/emacs/23.2/site-lisp/auctex/tex hides 
/usr/share/emacs/site-lisp/auctex/tex
/usr/share/emacs/23.2/site-lisp/auctex/multi-prompt hides 
/usr/share/emacs/site-lisp/auctex/multi-prompt
/usr/share/emacs/23.2/site-lisp/auctex/tex-fptex hides 
/usr/share/emacs/site-lisp/auctex/tex-fptex
/usr/share/emacs/23.2/site-lisp/auctex/tex-font hides 
/usr/share/emacs/site-lisp/auctex/tex-font
/usr/share/emacs/23.2/site-lisp/auctex/tex-fold hides 
/usr/share/emacs/site-lisp/auctex/tex-fold
/usr/share/emacs/23.2/site-lisp/auctex/texmathp hides 
/usr/share/emacs/site-lisp/auctex/texmathp
/usr/share/emacs/23.2/site-lisp/auctex/context hides 
/usr/share/emacs/site-lisp/auctex/context
/usr/share/emacs/23.2/site-lisp/auctex/font-latex hides 
/usr/share/emacs/site-lisp/auctex/font-latex
/usr/share/emacs/23.2/site-lisp/auctex/bib-cite hides 
/usr/share/emacs/site-lisp/auctex/bib-cite
/usr/share/emacs/23.2/site-lisp/auctex/toolbar-x hides 
/usr/share/emacs/site-lisp/auctex/toolbar-x
/usr/share/emacs/23.2/site-lisp/auctex/tex-style hides 
/usr/share/emacs/site-lisp/auctex/tex-style
/usr/share/emacs23/site-lisp/psgml/psgml-init hides 
/usr/share/emacs/site-lisp/psgml/psgml-init
/usr/share/emacs23/site-lisp/psgml/psgml-parse hides 
/usr/share/emacs/site-lisp/psgml/psgml-parse
/usr/share/emacs23/site-lisp/psgml/psgml-info hides 
/usr/share/emacs/site-lisp/psgml/psgml-info
/usr/share/emacs23/site-lisp/psgml/psgml-html hides 
/usr/share/emacs/site-lisp/psgml/psgml-html
/usr/share/emacs23/site-lisp/psgml/psgml-other hides 
/usr/share/emacs/site-lisp/psgml/psgml-other
/usr/share/emacs23/site-lisp/psgml/psgml hides 
/usr/share/emacs/site-lisp/psgml/psgml
/usr/share/emacs23/site-lisp/psgml/psgml-charent hides 
/usr/share/emacs/site-lisp/psgml/psgml-charent
/usr/share/emacs23/site-lisp/psgml/psgml-sysdep hides 
/usr/share/emacs/site-lisp/psgml/psgml-sysdep
/usr/share/emacs23/site-lisp/psgml/psgml-ids hides 
/usr/share/emacs/site-lisp/psgml/psgml-ids
/usr/share/emacs23/site-lisp/psgml/psgml-dtd hides 
/usr/share/emacs/site-lisp/psgml/psgml-dtd
/usr/share/emacs23/site-lisp/psgml/psgml-api hides 
/usr/share/emacs/site-lisp/psgml/psgml-api
/usr/share/emacs23/site-lisp/psgml/psgml-edit hides 
/usr/share/emacs/site-lisp/psgml/psgml-edit
/usr/share/emacs/23.2/site-lisp/cdargs hides /usr/share/emacs/site-lisp/cdargs
/usr/share/emacs/23.2/site-lisp/cscope/xcscope hides 
/usr/share/emacs/site-lisp/xcscope
/usr/share/emacs/23.2/site-lisp/cmake-data/cmake-mode hides 
/usr/share/emacs/site-lisp/cmake-mode
/usr/share/emacs/23.2/site-lisp/debian-startup hides 
/usr/share/emacs/site-lisp/debian-startup
/usr/share/emacs23/site-lisp/css-mode/css-mode hides 
/usr/share/emacs/23.2/lisp/textmodes/css-mode
/usr/share/emacs23/site-lisp/dictionaries-common/flyspell hides 
/usr/share/emacs/23.2/lisp/textmodes/flyspell
/usr/share/emacs23/site-lisp/dictionaries-common/ispell hides 
/usr/share/emacs/23.2/lisp/textmodes/ispell
/usr/share/emacs/site-lisp/rst hides /usr/share/emacs/23.2/lisp/textmodes/rst
/usr/share/emacs23/site-lisp/ruby1.8-elisp/ruby-mode hides 
/usr/share/emacs/23.2/lisp/progmodes/ruby-mode

Features:
(shadow sort mail-extr message sendmail ecomplete rfc822 mml mml-sec
password-cache mm-decode mm-bodies mm-encode mailcap mail-parse rfc2231
rfc2047 rfc2045 qp ietf-drums mailabbrev nnheader gnus-util netrc
time-date mm-util mail-prsvr gmm-utils wid-edit mailheader canlock sha1
hex-util hashcash mail-utils emacsbug pp help-mode view vc-dispatcher
vc-svn tabify ld-script multi-isearch make-mode texmathp cperl-mode
longlines vc-git preview prv-emacs byte-opt tex-buf noutline outline
font-latex bytecomp byte-compile latex tex-style tex face-remap
filladapt flyspell conf-mode newcomment auto-dictionary-autoloads
dictionary-autoloads js2-mode-autoloads package reporter completing-help
ff-paths uniquify paren savehist minibuf-eldef iswitchb icomplete
autorevert time cus-start cus-load desktop server change-mode advice
help-fns advice-preload php-mode derived etags cc-langs cl cl-19 cc-mode
cc-fonts cc-menus cc-cmds cc-styles cc-align cc-engine cc-vars cc-defs
speedbar sb-image ezimage dframe easymenu assoc lua-mode regexp-opt
comint ring whitespace etags-update smart-quotes easy-mmode edmacro
kmacro ispell ffap psgml-init muse-autoloads emacs-goodies-el
emacs-goodies-custom emacs-goodies-loaddefs bbdb-autoloads preview-latex
tex-site auto-loads tooltip ediff-hook vc-hooks lisp-float-type mwheel
x-win x-dnd font-setting tool-bar dnd fontset image fringe 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
system-font-setting font-render-setting gtk x-toolkit x multi-tty emacs)

-- 
http://rrt.sc3d.org/