Variable: auto-mode-alist
auto-mode-alist is a variable defined in files.el.gz.
Value
Large value
(("\\.ou?tl\\'" . outline-mode)
("\\.kotl?\\'" . kotl-mode)
("/etc/conf\\.modules" . etc-modules-conf-generic-mode)
("/etc/modules\\.conf" . etc-modules-conf-generic-mode)
("/etc/resolve?\\.conf\\'" . resolve-conf-generic-mode)
("/etc/named\\.boot\\'" . named-boot-generic-mode)
("/etc/sudoers\\'" . etc-sudoers-generic-mode)
("/etc/[v]*fstab\\'" . etc-fstab-generic-mode)
("/etc/shadow-?\\'" . etc-passwd-generic-mode)
("/etc/group-?\\'" . etc-passwd-generic-mode)
("/etc/passwd-?\\'" . etc-passwd-generic-mode)
("/etc/services\\'" . etc-services-generic-mode)
("/etc/inetd\\.conf\\'" . inetd-conf-generic-mode)
("\\.mailrc\\'" . mailrc-generic-mode)
("inventory\\'" . ansible-inventory-generic-mode)
("alias\\'" . alias-generic-mode)
("[mM][aA][nN][iI][fF][eE][sS][tT]\\.[mM][fF]\\'" . java-manifest-generic-mode)
("\\.wrl\\'" . vrml-generic-mode)
("prototype\\'" . prototype-generic-mode)
("\\.rules\\'" . mailagent-rules-generic-mode)
("[hH][oO][sS][tT][sS]\\'" . hosts-generic-mode)
("[xX]modmap\\(rc\\)?\\'" . xmodmap-generic-mode)
("\\.ad\\'" . x-resource-generic-mode)
("\\.Xenvironment\\'" . x-resource-generic-mode)
("\\.Xresources\\'" . x-resource-generic-mode)
("\\.Xdefaults\\'" . x-resource-generic-mode)
("\\.fvwm2rc\\'" . fvwm-generic-mode)
("\\.fvwmrc\\'" . fvwm-generic-mode)
("smb\\.conf\\'" . samba-generic-mode)
("access_log\\'" . apache-log-generic-mode)
("access\\.conf\\'" . apache-conf-generic-mode)
("httpd\\.conf\\'" . apache-conf-generic-mode)
("srm\\.conf\\'" . apache-conf-generic-mode)
("\\.hva\\'" . LaTeX-mode)
("\\(?:build\\|profile\\)\\.boot\\'" . clojure-mode)
("\\.joke\\'" . joker-mode)
("\\.jank\\'" . jank-mode)
("\\.cljd\\'" . clojuredart-mode)
("\\.cljs\\'" . clojurescript-mode)
("\\.cljc\\'" . clojurec-mode)
("\\.edn\\'" . edn-mode)
("\\.\\(clj\\|dtm\\|lpy\\)\\'" . clojure-mode)
("/git-rebase-todo\\'" . git-rebase-mode)
("\\.gpg\\(~\\|\\.~[0-9]+~\\)?\\'" nil epa-file)
("\\.elc\\'" . elisp-byte-code-mode)
("\\.zst\\'" nil jka-compr)
("\\.dz\\'" nil jka-compr)
("\\.xz\\'" nil jka-compr)
("\\.lzma\\'" nil jka-compr)
("\\.lz\\'" nil jka-compr)
("\\.g?z\\'" nil jka-compr)
("\\.bz2\\'" nil jka-compr)
("\\.Z\\'" nil jka-compr)
("\\.vr[hi]?\\'" . vera-mode)
("\\(?:\\.\\(?:rbw?\\|ru\\|rake\\|thor\\|jbuilder\\|rabl\\|gemspec\\|podspec\\)\\|/\\(?:Gem\\|Rake\\|Cap\\|Thor\\|Puppet\\|Berks\\|Brew\\|Vagrant\\|Guard\\|Pod\\)file\\)\\'" . ruby-mode)
("\\.re?st\\'" . rst-mode)
("\\.py[iw]?\\'" . python-mode)
("\\.m\\'" . octave-maybe-mode)
("\\.less\\'" . less-css-mode)
("\\.scss\\'" . scss-mode)
("\\.awk\\'" . awk-mode)
("\\.\\(u?lpc\\|pike\\|pmod\\(\\.in\\)?\\)\\'" . pike-mode)
("\\.idl\\'" . idl-mode)
("\\.java\\'" . java-mode)
("\\.m\\'" . objc-mode)
("\\.ii\\'" . c++-mode)
("\\.i\\'" . c-mode)
("\\.lex\\'" . c-mode)
("\\.y\\(acc\\)?\\'" . c-mode)
("\\.h\\'" . c-or-c++-mode)
("\\.c\\'" . c-mode)
("\\.\\(CC?\\|HH?\\)\\'" . c++-mode)
("\\.[ch]\\(pp\\|xx\\|\\+\\+\\)\\'" . c++-mode)
("\\.\\(cc\\|hh\\)\\'" . c++-mode)
("\\.\\(bat\\|cmd\\)\\'" . bat-mode)
("\\.[sx]?html?\\(\\.[a-zA-Z_]+\\)?\\'" . mhtml-mode)
("\\.svgz?\\'" . image-mode)
("\\.svgz?\\'" . xml-mode)
("\\.x[bp]m\\'" . image-mode)
("\\.x[bp]m\\'" . c-mode)
("\\.p[bpgn]m\\'" . image-mode)
("\\.tiff?\\'" . image-mode)
("\\.gif\\'" . image-mode)
("\\.png\\'" . image-mode)
("\\.jpe?g\\'" . image-mode)
("\\.te?xt\\'" . text-mode)
("\\.[tT]e[xX]\\'" . tex-mode)
("\\.ins\\'" . tex-mode)
("\\.ltx\\'" . latex-mode)
("\\.dtx\\'" . doctex-mode)
("\\.org\\'" . org-mode)
("\\.dir-locals\\(?:-2\\)?\\.el\\'" . lisp-data-mode)
("eww-bookmarks\\'" . lisp-data-mode)
("tramp\\'" . lisp-data-mode)
("/archive-contents\\'" . lisp-data-mode)
("places\\'" . lisp-data-mode)
("\\.emacs-places\\'" . lisp-data-mode)
("\\.el\\'" . emacs-lisp-mode)
("Project\\.ede\\'" . emacs-lisp-mode)
("\\.\\(scm\\|stk\\|ss\\|sch\\)\\'" . scheme-mode)
("\\.l\\'" . lisp-mode)
("\\.li?sp\\'" . lisp-mode)
("\\.[fF]\\'" . fortran-mode)
("\\.for\\'" . fortran-mode)
("\\.p\\'" . pascal-mode)
("\\.pas\\'" . pascal-mode)
("\\.\\(dpr\\|DPR\\)\\'" . delphi-mode)
("\\.\\([pP]\\([Llm]\\|erl\\|od\\)\\|al\\)\\'" . perl-mode)
("Imakefile\\'" . makefile-imake-mode)
("Makeppfile\\(?:\\.mk\\)?\\'" . makefile-makepp-mode)
("\\.makepp\\'" . makefile-makepp-mode)
("\\.mk\\'" . makefile-gmake-mode)
("\\.make\\'" . makefile-gmake-mode)
("[Mm]akefile\\'" . makefile-gmake-mode)
("\\.am\\'" . makefile-automake-mode)
("\\.texinfo\\'" . texinfo-mode)
("\\.te?xi\\'" . texinfo-mode)
("\\.[sS]\\'" . asm-mode)
("\\.asm\\'" . asm-mode)
("\\.css\\'" . css-mode)
("\\.mixal\\'" . mixal-mode)
("\\.gcov\\'" . compilation-mode)
("/\\.[a-z0-9-]*gdbinit" . gdb-script-mode)
("-gdb\\.gdb" . gdb-script-mode)
("[cC]hange\\.?[lL]og?\\'" . change-log-mode)
("[cC]hange[lL]og[-.][0-9]+\\'" . change-log-mode)
("\\$CHANGE_LOG\\$\\.TXT" . change-log-mode)
("\\.scm\\.[0-9]*\\'" . scheme-mode)
("\\.[ckz]?sh\\'\\|\\.shar\\'\\|/\\.z?profile\\'" . sh-mode)
("\\.bash\\'" . sh-mode)
("/PKGBUILD\\'" . sh-mode)
("\\(/\\|\\`\\)\\.\\(bash_\\(profile\\|history\\|log\\(in\\|out\\)\\)\\|z?log\\(in\\|out\\)\\)\\'" . sh-mode)
("\\(/\\|\\`\\)\\.\\(shrc\\|zshrc\\|m?kshrc\\|bashrc\\|t?cshrc\\|esrc\\)\\'" . sh-mode)
("\\(/\\|\\`\\)\\.\\([kz]shenv\\|xinitrc\\|startxrc\\|xsession\\)\\'" . sh-mode)
("\\.m?spec\\'" . sh-mode)
("\\.m[mes]\\'" . nroff-mode)
("\\.man\\'" . nroff-mode)
("\\.sty\\'" . latex-mode)
("\\.cl[so]\\'" . latex-mode)
("\\.bbl\\'" . latex-mode)
("\\.bib\\'" . bibtex-mode)
("\\.bst\\'" . bibtex-style-mode)
("\\.sql\\'" . sql-mode)
("\\(acinclude\\|aclocal\\|acsite\\)\\.m4\\'" . autoconf-mode)
("\\.m[4c]\\'" . m4-mode)
("\\.mf\\'" . metafont-mode)
("\\.mp\\'" . metapost-mode)
("\\.vhdl?\\'" . vhdl-mode)
("\\.article\\'" . text-mode)
("\\.letter\\'" . text-mode)
("\\.i?tcl\\'" . tcl-mode)
("\\.exp\\'" . tcl-mode)
("\\.itk\\'" . tcl-mode)
("\\.icn\\'" . icon-mode)
("\\.sim\\'" . simula-mode)
("\\.mss\\'" . scribe-mode)
("\\.f9[05]\\'" . f90-mode)
("\\.f0[38]\\'" . f90-mode)
("\\.indent\\.pro\\'" . fundamental-mode)
("\\.\\(pro\\|PRO\\)\\'" . idlwave-mode)
("\\.srt\\'" . srecode-template-mode)
("\\.prolog\\'" . prolog-mode)
("\\.tar\\'" . tar-mode)
("\\.\\(arc\\|zip\\|lzh\\|lha\\|zoo\\|[jew]ar\\|xpi\\|rar\\|cbr\\|7z\\|squashfs\\|ARC\\|ZIP\\|LZH\\|LHA\\|ZOO\\|[JEW]AR\\|XPI\\|RAR\\|CBR\\|7Z\\|SQUASHFS\\)\\'" . archive-mode)
("\\.oxt\\'" . archive-mode)
("\\.\\(deb\\|[oi]pk\\)\\'" . archive-mode)
("\\`/tmp/Re" . text-mode)
("/Message[0-9]*\\'" . text-mode)
("\\`/tmp/fol/" . text-mode)
("\\.oak\\'" . scheme-mode)
("\\.sgml?\\'" . sgml-mode)
("\\.x[ms]l\\'" . xml-mode)
("\\.dbk\\'" . xml-mode)
("\\.dtd\\'" . sgml-mode)
("\\.ds\\(ss\\)?l\\'" . dsssl-mode)
("\\.js[mx]?\\'" . javascript-mode)
("\\.har\\'" . javascript-mode)
("\\.json\\'" . javascript-mode)
("\\.[ds]?va?h?\\'" . verilog-mode)
("\\.by\\'" . bovine-grammar-mode)
("\\.wy\\'" . wisent-grammar-mode)
("[:/\\]\\..*\\(emacs\\|gnus\\|viper\\)\\'" . emacs-lisp-mode)
("\\`\\..*emacs\\'" . emacs-lisp-mode)
("[:/]_emacs\\'" . emacs-lisp-mode)
("/crontab\\.X*[0-9]+\\'" . shell-script-mode)
("\\.ml\\'" . lisp-mode)
("\\.ld[si]?\\'" . ld-script-mode)
("ld\\.?script\\'" . ld-script-mode)
("\\.xs\\'" . c-mode)
("\\.x[abdsru]?[cnw]?\\'" . ld-script-mode)
("\\.zone\\'" . dns-mode)
("\\.soa\\'" . dns-mode)
("\\.asd\\'" . lisp-mode)
("\\.\\(asn\\|mib\\|smi\\)\\'" . snmp-mode)
("\\.\\(as\\|mi\\|sm\\)2\\'" . snmpv2-mode)
("\\.\\(diffs?\\|patch\\|rej\\)\\'" . diff-mode)
("\\.\\(dif\\|pat\\)\\'" . diff-mode)
("\\.[eE]?[pP][sS]\\'" . ps-mode)
("\\.\\(?:PDF\\|DVI\\|OD[FGPST]\\|DOCX\\|XLSX?\\|PPTX?\\|pdf\\|djvu\\|dvi\\|od[fgpst]\\|docx\\|xlsx?\\|pptx?\\)\\'" . doc-view-mode-maybe)
("configure\\.\\(ac\\|in\\)\\'" . autoconf-mode)
("\\.s\\(v\\|iv\\|ieve\\)\\'" . sieve-mode)
("BROWSE\\'" . ebrowse-tree-mode)
("\\.ebrowse\\'" . ebrowse-tree-mode)
("#\\*mail\\*" . mail-mode)
("\\.g\\'" . antlr-mode)
("\\.mod\\'" . m2-mode)
("\\.ses\\'" . ses-mode)
("\\.docbook\\'" . sgml-mode)
("\\.com\\'" . dcl-mode)
("/config\\.\\(?:bat\\|log\\)\\'" . fundamental-mode)
("/\\.\\(authinfo\\|netrc\\)\\'" . authinfo-mode)
("\\.\\(?:[iI][nN][iI]\\|[lL][sS][tT]\\|[rR][eE][gG]\\|[sS][yY][sS]\\)\\'" . conf-mode)
("\\.la\\'" . conf-unix-mode)
("\\.ppd\\'" . conf-ppd-mode)
("java.+\\.conf\\'" . conf-javaprop-mode)
("\\.properties\\(?:\\.[a-zA-Z0-9._-]+\\)?\\'" . conf-javaprop-mode)
("\\.toml\\'" . conf-toml-mode)
("\\.desktop\\'" . conf-desktop-mode)
("/\\.redshift\\.conf\\'" . conf-windows-mode)
("\\`/etc/\\(?:DIR_COLORS\\|ethers\\|.?fstab\\|.*hosts\\|lesskey\\|login\\.?de\\(?:fs\\|vperm\\)\\|magic\\|mtab\\|pam\\.d/.*\\|permissions\\(?:\\.d/.+\\)?\\|protocols\\|rpc\\|services\\)\\'" . conf-space-mode)
("\\`/etc/\\(?:acpid?/.+\\|aliases\\(?:\\.d/.+\\)?\\|default/.+\\|group-?\\|hosts\\..+\\|inittab\\|ksysguarddrc\\|opera6rc\\|passwd-?\\|shadow-?\\|sysconfig/.+\\)\\'" . conf-mode)
("[cC]hange[lL]og[-.][-0-9a-z]+\\'" . change-log-mode)
("/\\.?\\(?:gitconfig\\|gnokiirc\\|hgrc\\|kde.*rc\\|mime\\.types\\|wgetrc\\)\\'" . conf-mode)
("/\\.\\(?:asound\\|enigma\\|fetchmail\\|gltron\\|gtk\\|hxplayer\\|mairix\\|mbsync\\|msmtp\\|net\\|neverball\\|nvidia-settings-\\|offlineimap\\|qt/.+\\|realplayer\\|reportbug\\|rtorrent\\.\\|screen\\|scummvm\\|sversion\\|sylpheed/.+\\|xmp\\)rc\\'" . conf-mode)
("/\\.\\(?:gdbtkinit\\|grip\\|mpdconf\\|notmuch-config\\|orbital/.+txt\\|rhosts\\|tuxracer/options\\)\\'" . conf-mode)
("/\\.?X\\(?:default\\|resource\\|re\\)s\\>" . conf-xdefaults-mode)
("/X11.+app-defaults/\\|\\.ad\\'" . conf-xdefaults-mode)
("/X11.+locale/.+/Compose\\'" . conf-colon-mode)
("/X11.+locale/compose\\.dir\\'" . conf-javaprop-mode)
("\\.~?[0-9]+\\.[0-9][-.0-9]*~?\\'" nil t)
("\\.\\(?:orig\\|in\\|[bB][aA][kK]\\)\\'" nil t)
("[/.]c\\(?:on\\)?f\\(?:i?g\\)?\\(?:\\.[a-zA-Z0-9._-]+\\)?\\'" . conf-mode-maybe)
("\\.[1-9]\\'" . nroff-mode)
("\\.art\\'" . image-mode)
("\\.avs\\'" . image-mode)
("\\.bmp\\'" . image-mode)
("\\.cmyk\\'" . image-mode)
("\\.cmyka\\'" . image-mode)
("\\.crw\\'" . image-mode)
("\\.dcr\\'" . image-mode)
("\\.dcx\\'" . image-mode)
("\\.dng\\'" . image-mode)
("\\.dpx\\'" . image-mode)
("\\.fax\\'" . image-mode)
("\\.hrz\\'" . image-mode)
("\\.icb\\'" . image-mode)
("\\.icc\\'" . image-mode)
("\\.icm\\'" . image-mode)
("\\.ico\\'" . image-mode)
("\\.icon\\'" . image-mode)
("\\.jbg\\'" . image-mode)
("\\.jbig\\'" . image-mode)
("\\.jng\\'" . image-mode)
("\\.jnx\\'" . image-mode)
("\\.miff\\'" . image-mode)
("\\.mng\\'" . image-mode)
("\\.mvg\\'" . image-mode)
("\\.otb\\'" . image-mode)
("\\.p7\\'" . image-mode)
("\\.pcx\\'" . image-mode)
("\\.pdb\\'" . image-mode)
("\\.pfa\\'" . image-mode)
("\\.pfb\\'" . image-mode)
("\\.picon\\'" . image-mode)
("\\.pict\\'" . image-mode)
("\\.rgb\\'" . image-mode)
("\\.rgba\\'" . image-mode)
("\\.tga\\'" . image-mode)
("\\.wbmp\\'" . image-mode)
("\\.webp\\'" . image-mode)
("\\.wmf\\'" . image-mode)
("\\.wpg\\'" . image-mode)
("\\.xcf\\'" . image-mode)
("\\.xmp\\'" . image-mode)
("\\.xwd\\'" . image-mode)
("\\.yuv\\'" . image-mode)
("\\.tgz\\'" . tar-mode)
("\\.tbz2?\\'" . tar-mode)
("\\.txz\\'" . tar-mode)
("\\.tzst\\'" . tar-mode)
("\\.drv\\'" . LaTeX-mode))
Documentation
Alist of file name patterns vs corresponding major mode functions.
Each element looks like (REGEXP . FUNCTION) or (REGEXP FUNCTION NON-NIL).
(NON-NIL stands for anything that is not nil; the value does not matter.)
Visiting a file whose name matches REGEXP specifies FUNCTION as the
mode function to use. FUNCTION will be called, unless it is nil.
If the element has the form (REGEXP FUNCTION NON-NIL), then after calling FUNCTION (if it's not nil), we delete the suffix that matched REGEXP and search the list again for another match.
The extensions whose FUNCTION is archive-mode should also
appear in auto-coding-alist with no-conversion coding system.
See also interpreter-mode-alist, which detects executable script modes
based on the interpreters they specify to run,
and magic-mode-alist, which determines modes based on file contents.
Probably introduced at or before Emacs version 17.
Source Code
;; Defined in /usr/src/emacs/lisp/files.el.gz
(defvar auto-mode-alist
;; Note: The entries for the modes defined in cc-mode.el (c-mode,
;; c++-mode, java-mode and more) are added through autoload
;; directives in that file. That way is discouraged since it
;; spreads out the definition of the initial value.
(mapcar
(lambda (elt)
(cons (purecopy (car elt)) (cdr elt)))
`(;; do this first, so that .html.pl is Polish html, not Perl
("\\.[sx]?html?\\(\\.[a-zA-Z_]+\\)?\\'" . mhtml-mode)
("\\.svgz?\\'" . image-mode)
("\\.svgz?\\'" . xml-mode)
("\\.x[bp]m\\'" . image-mode)
("\\.x[bp]m\\'" . c-mode)
("\\.p[bpgn]m\\'" . image-mode)
("\\.tiff?\\'" . image-mode)
("\\.gif\\'" . image-mode)
("\\.png\\'" . image-mode)
("\\.jpe?g\\'" . image-mode)
("\\.te?xt\\'" . text-mode)
("\\.[tT]e[xX]\\'" . tex-mode)
("\\.ins\\'" . tex-mode) ;Installation files for TeX packages.
("\\.ltx\\'" . latex-mode)
("\\.dtx\\'" . doctex-mode)
("\\.org\\'" . org-mode)
;; .dir-locals.el is not really Elisp. Could use the
;; `dir-locals-file' constant if it weren't defined below.
("\\.dir-locals\\(?:-2\\)?\\.el\\'" . lisp-data-mode)
("eww-bookmarks\\'" . lisp-data-mode)
("tramp\\'" . lisp-data-mode)
("/archive-contents\\'" . lisp-data-mode)
("places\\'" . lisp-data-mode)
("\\.emacs-places\\'" . lisp-data-mode)
("\\.el\\'" . emacs-lisp-mode)
("Project\\.ede\\'" . emacs-lisp-mode)
("\\.\\(scm\\|stk\\|ss\\|sch\\)\\'" . scheme-mode)
("\\.l\\'" . lisp-mode)
("\\.li?sp\\'" . lisp-mode)
("\\.[fF]\\'" . fortran-mode)
("\\.for\\'" . fortran-mode)
("\\.p\\'" . pascal-mode)
("\\.pas\\'" . pascal-mode)
("\\.\\(dpr\\|DPR\\)\\'" . delphi-mode)
("\\.\\([pP]\\([Llm]\\|erl\\|od\\)\\|al\\)\\'" . perl-mode)
("Imakefile\\'" . makefile-imake-mode)
("Makeppfile\\(?:\\.mk\\)?\\'" . makefile-makepp-mode) ; Put this before .mk
("\\.makepp\\'" . makefile-makepp-mode)
,@(if (memq system-type '(berkeley-unix darwin))
'(("\\.mk\\'" . makefile-bsdmake-mode)
("\\.make\\'" . makefile-bsdmake-mode)
("GNUmakefile\\'" . makefile-gmake-mode)
("[Mm]akefile\\'" . makefile-bsdmake-mode))
'(("\\.mk\\'" . makefile-gmake-mode) ; Might be any make, give GNU the host advantage
("\\.make\\'" . makefile-gmake-mode)
("[Mm]akefile\\'" . makefile-gmake-mode)))
("\\.am\\'" . makefile-automake-mode)
;; Less common extensions come here
;; so more common ones above are found faster.
("\\.texinfo\\'" . texinfo-mode)
("\\.te?xi\\'" . texinfo-mode)
("\\.[sS]\\'" . asm-mode)
("\\.asm\\'" . asm-mode)
("\\.css\\'" . css-mode)
("\\.mixal\\'" . mixal-mode)
("\\.gcov\\'" . compilation-mode)
;; Besides .gdbinit, gdb documents other names to be usable for init
;; files, cross-debuggers can use something like
;; .PROCESSORNAME-gdbinit so that the host and target gdbinit files
;; don't interfere with each other.
("/\\.[a-z0-9-]*gdbinit" . gdb-script-mode)
;; GDB 7.5 introduced OBJFILE-gdb.gdb script files; e.g. a file
;; named 'emacs-gdb.gdb', if it exists, will be automatically
;; loaded when GDB reads an objfile called 'emacs'.
("-gdb\\.gdb" . gdb-script-mode)
("[cC]hange\\.?[lL]og?\\'" . change-log-mode)
("[cC]hange[lL]og[-.][0-9]+\\'" . change-log-mode)
("\\$CHANGE_LOG\\$\\.TXT" . change-log-mode)
("\\.scm\\.[0-9]*\\'" . scheme-mode)
("\\.[ckz]?sh\\'\\|\\.shar\\'\\|/\\.z?profile\\'" . sh-mode)
("\\.bash\\'" . sh-mode)
("/PKGBUILD\\'" . sh-mode)
("\\(/\\|\\`\\)\\.\\(bash_\\(profile\\|history\\|log\\(in\\|out\\)\\)\\|z?log\\(in\\|out\\)\\)\\'" . sh-mode)
("\\(/\\|\\`\\)\\.\\(shrc\\|zshrc\\|m?kshrc\\|bashrc\\|t?cshrc\\|esrc\\)\\'" . sh-mode)
("\\(/\\|\\`\\)\\.\\([kz]shenv\\|xinitrc\\|startxrc\\|xsession\\)\\'" . sh-mode)
("\\.m?spec\\'" . sh-mode)
("\\.m[mes]\\'" . nroff-mode)
("\\.man\\'" . nroff-mode)
("\\.sty\\'" . latex-mode)
("\\.cl[so]\\'" . latex-mode) ;LaTeX 2e class option
("\\.bbl\\'" . latex-mode)
("\\.bib\\'" . bibtex-mode)
("\\.bst\\'" . bibtex-style-mode)
("\\.sql\\'" . sql-mode)
;; These .m4 files are Autoconf files.
("\\(acinclude\\|aclocal\\|acsite\\)\\.m4\\'" . autoconf-mode)
("\\.m[4c]\\'" . m4-mode)
("\\.mf\\'" . metafont-mode)
("\\.mp\\'" . metapost-mode)
("\\.vhdl?\\'" . vhdl-mode)
("\\.article\\'" . text-mode)
("\\.letter\\'" . text-mode)
("\\.i?tcl\\'" . tcl-mode)
("\\.exp\\'" . tcl-mode)
("\\.itk\\'" . tcl-mode)
("\\.icn\\'" . icon-mode)
("\\.sim\\'" . simula-mode)
("\\.mss\\'" . scribe-mode)
;; The Fortran standard does not say anything about file extensions.
;; .f90 was widely used for F90, now we seem to be trapped into
;; using a different extension for each language revision.
;; Anyway, the following extensions are supported by gfortran.
("\\.f9[05]\\'" . f90-mode)
("\\.f0[38]\\'" . f90-mode)
("\\.indent\\.pro\\'" . fundamental-mode) ; to avoid idlwave-mode
("\\.\\(pro\\|PRO\\)\\'" . idlwave-mode)
("\\.srt\\'" . srecode-template-mode)
("\\.prolog\\'" . prolog-mode)
("\\.tar\\'" . tar-mode)
;; The list of archive file extensions should be in sync with
;; `auto-coding-alist' with `no-conversion' coding system.
("\\.\\(\
arc\\|zip\\|lzh\\|lha\\|zoo\\|[jew]ar\\|xpi\\|rar\\|cbr\\|7z\\|squashfs\\|\
ARC\\|ZIP\\|LZH\\|LHA\\|ZOO\\|[JEW]AR\\|XPI\\|RAR\\|CBR\\|7Z\\|SQUASHFS\\)\\'" . archive-mode)
("\\.oxt\\'" . archive-mode) ;(Open|Libre)Office extensions.
("\\.\\(deb\\|[oi]pk\\)\\'" . archive-mode) ; Debian/Opkg packages.
;; Mailer puts message to be edited in
;; /tmp/Re.... or Message
("\\`/tmp/Re" . text-mode)
("/Message[0-9]*\\'" . text-mode)
;; some news reader is reported to use this
("\\`/tmp/fol/" . text-mode)
("\\.oak\\'" . scheme-mode)
("\\.sgml?\\'" . sgml-mode)
("\\.x[ms]l\\'" . xml-mode)
("\\.dbk\\'" . xml-mode)
("\\.dtd\\'" . sgml-mode)
("\\.ds\\(ss\\)?l\\'" . dsssl-mode)
("\\.js[mx]?\\'" . javascript-mode)
;; https://en.wikipedia.org/wiki/.har
("\\.har\\'" . javascript-mode)
("\\.json\\'" . javascript-mode)
("\\.[ds]?va?h?\\'" . verilog-mode)
("\\.by\\'" . bovine-grammar-mode)
("\\.wy\\'" . wisent-grammar-mode)
;; .emacs or .gnus or .viper following a directory delimiter in
;; Unix or MS-DOS syntax.
("[:/\\]\\..*\\(emacs\\|gnus\\|viper\\)\\'" . emacs-lisp-mode)
("\\`\\..*emacs\\'" . emacs-lisp-mode)
;; _emacs following a directory delimiter in MS-DOS syntax
("[:/]_emacs\\'" . emacs-lisp-mode)
("/crontab\\.X*[0-9]+\\'" . shell-script-mode)
("\\.ml\\'" . lisp-mode)
;; Linux-2.6.9 uses some different suffix for linker scripts:
;; "ld", "lds", "lds.S", "lds.in", "ld.script", and "ld.script.balo".
;; eCos uses "ld" and "ldi". Netbsd uses "ldscript.*".
("\\.ld[si]?\\'" . ld-script-mode)
("ld\\.?script\\'" . ld-script-mode)
;; .xs is also used for ld scripts, but seems to be more commonly
;; associated with Perl .xs files (C with Perl bindings). (Bug#7071)
("\\.xs\\'" . c-mode)
;; Explained in binutils ld/genscripts.sh. Eg:
;; A .x script file is the default script.
;; A .xr script is for linking without relocation (-r flag). Etc.
("\\.x[abdsru]?[cnw]?\\'" . ld-script-mode)
("\\.zone\\'" . dns-mode)
("\\.soa\\'" . dns-mode)
;; Common Lisp ASDF package system.
("\\.asd\\'" . lisp-mode)
("\\.\\(asn\\|mib\\|smi\\)\\'" . snmp-mode)
("\\.\\(as\\|mi\\|sm\\)2\\'" . snmpv2-mode)
("\\.\\(diffs?\\|patch\\|rej\\)\\'" . diff-mode)
("\\.\\(dif\\|pat\\)\\'" . diff-mode) ; for MS-DOS
("\\.[eE]?[pP][sS]\\'" . ps-mode)
("\\.\\(?:PDF\\|DVI\\|OD[FGPST]\\|DOCX\\|XLSX?\\|PPTX?\\|pdf\\|djvu\\|dvi\\|od[fgpst]\\|docx\\|xlsx?\\|pptx?\\)\\'" . doc-view-mode-maybe)
("configure\\.\\(ac\\|in\\)\\'" . autoconf-mode)
("\\.s\\(v\\|iv\\|ieve\\)\\'" . sieve-mode)
("BROWSE\\'" . ebrowse-tree-mode)
("\\.ebrowse\\'" . ebrowse-tree-mode)
("#\\*mail\\*" . mail-mode)
("\\.g\\'" . antlr-mode)
("\\.mod\\'" . m2-mode)
("\\.ses\\'" . ses-mode)
("\\.docbook\\'" . sgml-mode)
("\\.com\\'" . dcl-mode)
("/config\\.\\(?:bat\\|log\\)\\'" . fundamental-mode)
("/\\.\\(authinfo\\|netrc\\)\\'" . authinfo-mode)
;; Windows candidates may be opened case sensitively on Unix
("\\.\\(?:[iI][nN][iI]\\|[lL][sS][tT]\\|[rR][eE][gG]\\|[sS][yY][sS]\\)\\'" . conf-mode)
("\\.la\\'" . conf-unix-mode)
("\\.ppd\\'" . conf-ppd-mode)
("java.+\\.conf\\'" . conf-javaprop-mode)
("\\.properties\\(?:\\.[a-zA-Z0-9._-]+\\)?\\'" . conf-javaprop-mode)
("\\.toml\\'" . conf-toml-mode)
("\\.desktop\\'" . conf-desktop-mode)
("/\\.redshift\\.conf\\'" . conf-windows-mode)
("\\`/etc/\\(?:DIR_COLORS\\|ethers\\|.?fstab\\|.*hosts\\|lesskey\\|login\\.?de\\(?:fs\\|vperm\\)\\|magic\\|mtab\\|pam\\.d/.*\\|permissions\\(?:\\.d/.+\\)?\\|protocols\\|rpc\\|services\\)\\'" . conf-space-mode)
("\\`/etc/\\(?:acpid?/.+\\|aliases\\(?:\\.d/.+\\)?\\|default/.+\\|group-?\\|hosts\\..+\\|inittab\\|ksysguarddrc\\|opera6rc\\|passwd-?\\|shadow-?\\|sysconfig/.+\\)\\'" . conf-mode)
;; ChangeLog.old etc. Other change-log-mode entries are above;
;; this has lower priority to avoid matching changelog.sgml etc.
("[cC]hange[lL]og[-.][-0-9a-z]+\\'" . change-log-mode)
;; either user's dot-files or under /etc or some such
("/\\.?\\(?:gitconfig\\|gnokiirc\\|hgrc\\|kde.*rc\\|mime\\.types\\|wgetrc\\)\\'" . conf-mode)
;; alas not all ~/.*rc files are like this
("/\\.\\(?:asound\\|enigma\\|fetchmail\\|gltron\\|gtk\\|hxplayer\\|mairix\\|mbsync\\|msmtp\\|net\\|neverball\\|nvidia-settings-\\|offlineimap\\|qt/.+\\|realplayer\\|reportbug\\|rtorrent\\.\\|screen\\|scummvm\\|sversion\\|sylpheed/.+\\|xmp\\)rc\\'" . conf-mode)
("/\\.\\(?:gdbtkinit\\|grip\\|mpdconf\\|notmuch-config\\|orbital/.+txt\\|rhosts\\|tuxracer/options\\)\\'" . conf-mode)
("/\\.?X\\(?:default\\|resource\\|re\\)s\\>" . conf-xdefaults-mode)
("/X11.+app-defaults/\\|\\.ad\\'" . conf-xdefaults-mode)
("/X11.+locale/.+/Compose\\'" . conf-colon-mode)
;; this contains everything twice, with space and with colon :-(
("/X11.+locale/compose\\.dir\\'" . conf-javaprop-mode)
;; Get rid of any trailing .n.m and try again.
;; This is for files saved by cvs-merge that look like .#<file>.<rev>
;; or .#<file>.<rev>-<rev> or VC's <file>.~<rev>~.
;; Using mode nil rather than `ignore' would let the search continue
;; through this list (with the shortened name) rather than start over.
("\\.~?[0-9]+\\.[0-9][-.0-9]*~?\\'" nil t)
("\\.\\(?:orig\\|in\\|[bB][aA][kK]\\)\\'" nil t)
;; This should come after "in" stripping (e.g. config.h.in).
;; *.cf, *.cfg, *.conf, *.config[.local|.de_DE.UTF8|...], */config
("[/.]c\\(?:on\\)?f\\(?:i?g\\)?\\(?:\\.[a-zA-Z0-9._-]+\\)?\\'" . conf-mode-maybe)
;; The following should come after the ChangeLog pattern
;; for the sake of ChangeLog.1, etc.
;; and after the .scm.[0-9] and CVS' <file>.<rev> patterns too.
("\\.[1-9]\\'" . nroff-mode)
;; Image file types probably supported by `image-convert'.
("\\.art\\'" . image-mode)
("\\.avs\\'" . image-mode)
("\\.bmp\\'" . image-mode)
("\\.cmyk\\'" . image-mode)
("\\.cmyka\\'" . image-mode)
("\\.crw\\'" . image-mode)
("\\.dcr\\'" . image-mode)
("\\.dcx\\'" . image-mode)
("\\.dng\\'" . image-mode)
("\\.dpx\\'" . image-mode)
("\\.fax\\'" . image-mode)
("\\.hrz\\'" . image-mode)
("\\.icb\\'" . image-mode)
("\\.icc\\'" . image-mode)
("\\.icm\\'" . image-mode)
("\\.ico\\'" . image-mode)
("\\.icon\\'" . image-mode)
("\\.jbg\\'" . image-mode)
("\\.jbig\\'" . image-mode)
("\\.jng\\'" . image-mode)
("\\.jnx\\'" . image-mode)
("\\.miff\\'" . image-mode)
("\\.mng\\'" . image-mode)
("\\.mvg\\'" . image-mode)
("\\.otb\\'" . image-mode)
("\\.p7\\'" . image-mode)
("\\.pcx\\'" . image-mode)
("\\.pdb\\'" . image-mode)
("\\.pfa\\'" . image-mode)
("\\.pfb\\'" . image-mode)
("\\.picon\\'" . image-mode)
("\\.pict\\'" . image-mode)
("\\.rgb\\'" . image-mode)
("\\.rgba\\'" . image-mode)
("\\.tga\\'" . image-mode)
("\\.wbmp\\'" . image-mode)
("\\.webp\\'" . image-mode)
("\\.wmf\\'" . image-mode)
("\\.wpg\\'" . image-mode)
("\\.xcf\\'" . image-mode)
("\\.xmp\\'" . image-mode)
("\\.xwd\\'" . image-mode)
("\\.yuv\\'" . image-mode)))
"Alist of file name patterns vs corresponding major mode functions.
Each element looks like (REGEXP . FUNCTION) or (REGEXP FUNCTION NON-NIL).
\(NON-NIL stands for anything that is not nil; the value does not matter.)
Visiting a file whose name matches REGEXP specifies FUNCTION as the
mode function to use. FUNCTION will be called, unless it is nil.
If the element has the form (REGEXP FUNCTION NON-NIL), then after
calling FUNCTION (if it's not nil), we delete the suffix that matched
REGEXP and search the list again for another match.
The extensions whose FUNCTION is `archive-mode' should also
appear in `auto-coding-alist' with `no-conversion' coding system.
See also `interpreter-mode-alist', which detects executable script modes
based on the interpreters they specify to run,
and `magic-mode-alist', which determines modes based on file contents.")