patch 8.0.0894: there is no test for runtime filetype detection

Problem:    There is no test for runtime filetype detection.
Solution:   Test a list of filetypes from patterns.

3 files changed, 482 insertions, 3 deletions

diff --git a/runtime/filetype.vim b/runtime/filetype.vim
index 39030aa2c..df37ff7f5 100644
--- a/runtime/filetype.vim
+++ b/runtime/filetype.vim
@@ -1,7 +1,7 @@
 " Vim support file to detect file types
 "
 " Maintainer:	Bram Moolenaar <Bram@vim.org>
-" Last Change:	2017 Jul 11
+" Last Change:	2017 Aug 09
 
 " Listen very carefully, I will say this only once
 if exists("did_load_filetypes")
@@ -1027,7 +1027,7 @@ au BufNewFile,BufRead *.java,*.jav		setf java
 au BufNewFile,BufRead *.jj,*.jjt		setf javacc
 
 " JavaScript, ECMAScript
-au BufNewFile,BufRead *.js,*.javascript,*.es,*.jsx   setf javascript
+au BufNewFile,BufRead *.js,*.javascript,*.es,*.jsx,*.mjs   setf javascript
 
 " Java Server Pages
 au BufNewFile,BufRead *.jsp			setf jsp
@@ -2267,6 +2267,8 @@ func! s:FTtex()
     elseif format == 'plaintex'
       let format = 'plain'
     endif
+  elseif expand('%') =~ 'tex/context/.*/.*.tex'
+    let format = 'context'
   else
     " Default value, may be changed later:
     let format = exists("g:tex_flavor") ? g:tex_flavor : 'plain'
@@ -2308,7 +2310,7 @@ func! s:FTtex()
 endfunc
 
 " ConTeXt
-au BufNewFile,BufRead tex/context/*/*.tex,*.mkii,*.mkiv,*.mkvi   setf context
+au BufNewFile,BufRead *.mkii,*.mkiv,*.mkvi   setf context
 
 " Texinfo
 au BufNewFile,BufRead *.texinfo,*.texi,*.txi	setf texinfo
diff --git a/src/testdir/test_filetype.vim b/src/testdir/test_filetype.vim
index 818603b18..dfcd12e8e 100644
--- a/src/testdir/test_filetype.vim
+++ b/src/testdir/test_filetype.vim
@@ -41,3 +41,478 @@ func Test_other_type()
   call delete('Xfile')
   filetype off
 endfunc
+
+" Filetypes detected just from matching the file name.
+let s:filename_checks = {
+    \ 'a2ps': ['/etc/a2ps.cfg', '/etc/a2ps/file.cfg', 'a2psrc', '.a2psrc'],
+    \ 'a65': ['file.a65'],
+    \ 'abap': ['file.abap'],
+    \ 'abc': ['file.abc'],
+    \ 'abel': ['file.abl'],
+    \ 'acedb': ['file.wrm'],
+    \ 'ada': ['file.adb', 'file.ads', 'file.ada', 'file.gpr'],
+    \ 'ahdl': ['file.tdf'],
+    \ 'alsaconf': ['.asoundrc', '/usr/share/alsa/alsa.conf', '/etc/asound.conf'],
+    \ 'aml': ['file.aml'],
+    \ 'ampl': ['file.run'],
+    \ 'ant': ['build.xml'],
+    \ 'apache': ['.htaccess', '/etc/httpd/file.conf'],
+    \ 'applescript': ['file.scpt'],
+    \ 'aptconf': ['apt.conf', '/.aptitude/config'],
+    \ 'arch': ['.arch-inventory'],
+    \ 'arduino': ['file.ino', 'file.pde'],
+    \ 'art': ['file.art'],
+    \ 'asciidoc': ['file.asciidoc', 'file.adoc'],
+    \ 'asn': ['file.asn', 'file.asn1'],
+    \ 'atlas': ['file.atl', 'file.as'],
+    \ 'autohotkey': ['file.ahk'],
+    \ 'autoit': ['file.au3'],
+    \ 'automake': ['GNUmakefile.am'],
+    \ 'ave': ['file.ave'],
+    \ 'awk': ['file.awk'],
+    \ 'b': ['file.mch', 'file.ref', 'file.imp'],
+    \ 'bc': ['file.bc'],
+    \ 'bdf': ['file.bdf'],
+    \ 'bib': ['file.bib'],
+    \ 'bindzone': ['named.root'],
+    \ 'blank': ['file.bl'],
+    \ 'bst': ['file.bst'],
+    \ 'bzr': ['bzr_log.any'],
+    \ 'c': ['*enlightenment/file.cfg', 'file.qc', 'file.c'],
+    \ 'cabal': ['file.cabal'],
+    \ 'calendar': ['calendar'],
+    \ 'catalog': ['catalog'],
+    \ 'cdl': ['file.cdl'],
+    \ 'cdrdaoconf': ['/etc/cdrdao.conf', '/etc/defaults/cdrdao', '/etc/default/cdrdao', '.cdrdao'],
+    \ 'cdrtoc': ['file.toc'],
+    \ 'cf': ['file.cfm', 'file.cfi', 'file.cfc'],
+    \ 'cfengine': ['cfengine.conf'],
+    \ 'cfg': ['file.cfg', 'file.hgrc', 'filehgrc'],
+    \ 'ch': ['file.chf'],
+    \ 'chaiscript': ['file.chai'],
+    \ 'chaskell': ['file.chs'],
+    \ 'chill': ['file..ch'],
+    \ 'chordpro': ['file.chopro', 'file.crd', 'file.cho', 'file.crdpro', 'file.chordpro'],
+    \ 'cl': ['file.eni'],
+    \ 'clean': ['file.dcl', 'file.icl'],
+    \ 'clojure': ['file.clj', 'file.cljs', 'file.cljx', 'file.cljc'],
+    \ 'cmake': ['CMakeLists.txt', 'file.cmake', 'file.cmake.in'],
+    \ 'cmusrc': ['any/.cmus/autosave', 'any/.cmus/rc', 'any/.cmus/command-history', 'any/.cmus/file.theme', 'any/cmus/rc', 'any/cmus/file.theme'],
+    \ 'cobol': ['file.cbl', 'file.cob', 'file.lib'],
+    \ 'coco': ['file.atg'],
+    \ 'conaryrecipe': ['file.recipe'],
+    \ 'conf': ['auto.master'],
+    \ 'config': ['configure.in', 'configure.ac'],
+    \ 'context': ['tex/context/any/file.tex', 'file.mkii', 'file.mkiv', 'file.mkvi'],
+    \ 'cpp': ['file.cxx', 'file.c++', 'file.hh', 'file.hxx', 'file.hpp', 'file.ipp', 'file.moc', 'file.tcc', 'file.inl', 'file.tlh'],
+    \ 'crm': ['file.crm'],
+    \ 'cs': ['file.cs'],
+    \ 'csc': ['file.csc'],
+    \ 'csdl': ['file.csdl'],
+    \ 'csp': ['file.csp', 'file.fdr'],
+    \ 'css': ['file.css'],
+    \ 'cterm': ['file.con'],
+    \ 'cucumber': ['file.feature'],
+    \ 'cuda': ['file.cu'],
+    \ 'cupl': ['file.pld'],
+    \ 'cuplsim': ['file.si'],
+    \ 'cvs': ['cvs123'],
+    \ 'cvsrc': ['.cvsrc'],
+    \ 'cynpp': ['file.cyn'],
+    \ 'datascript': ['file.ds'],
+    \ 'dcd': ['file.dcd'],
+    \ 'debcontrol': ['/debian/control'],
+    \ 'debsources': ['/etc/apt/sources.list', '/etc/apt/sources.list.d/file.list'],
+    \ 'def': ['file.def'],
+    \ 'denyhosts': ['denyhosts.conf'],
+    \ 'desc': ['file.desc'],
+    \ 'desktop': ['file.desktop', '.directory'],
+    \ 'dictconf': ['dict.conf', '.dictrc'],
+    \ 'dictdconf': ['dictd.conf'],
+    \ 'diff': ['file.diff', 'file.rej'],
+    \ 'dircolors': ['.dir_colors', '.dircolors', '/etc/DIR_COLORS'],
+    \ 'dnsmasq': ['/etc/dnsmasq.conf'],
+    \ 'dockerfile': ['Dockerfile', 'file.Dockerfile'],
+    \ 'dosbatch': ['file.bat', 'file.sys'],
+    \ 'dosini': ['.editorconfig', '/etc/yum.conf', 'file.ini'],
+    \ 'dot': ['file.dot'],
+    \ 'dracula': ['file.drac', 'file.drc', '*lvs', '*lpe'],
+    \ 'dsl': ['file.dsl'],
+    \ 'dtd': ['file.dtd'],
+    \ 'dts': ['file.dts', 'file.dtsi'],
+    \ 'dylan': ['file.dylan'],
+    \ 'dylanintr': ['file.intr'],
+    \ 'dylanlid': ['file.lid'],
+    \ 'ecd': ['file.ecd'],
+    \ 'edif': ['file.edf', 'file.edif', 'file.edo'],
+    \ 'elinks': ['/etc/elinks.conf', '/.elinks/elinks.conf'],
+    \ 'elmfilt': ['filter-rules'],
+    \ 'erlang': ['file.erl', 'file.hrl', 'file.yaws'],
+    \ 'eruby': ['file.erb', 'file.rhtml'],
+    \ 'esmtprc': ['*esmtprc'],
+    \ 'esqlc': ['file.ec', 'file.EC'],
+    \ 'esterel': ['file.strl'],
+    \ 'eterm': ['*Eterm/file.cfg'],
+    \ 'exim': ['exim.conf'],
+    \ 'expect': ['file.exp'],
+    \ 'exports': ['exports'],
+    \ 'factor': ['file.factor'],
+    \ 'falcon': ['file.fal'],
+    \ 'fan': ['file.fan', 'file.fwt'],
+    \ 'fetchmail': ['.fetchmailrc'],
+    \ 'fgl': ['file.4gl', 'file.4gh', 'file.m4gl'],
+    \ 'focexec': ['file.fex', 'file.focexec'],
+    \ 'forth': ['file.fs', 'file.ft'],
+    \ 'fortran': ['file.f', 'file.for', 'file.fortran', 'file.fpp', 'file.ftn', 'file.f77', 'file.f90', 'file.f95', 'file.f03', 'file.f08'],
+    \ 'framescript': ['file.fsl'],
+    \ 'freebasic': ['file.fb', 'file.bi'],
+    \ 'fstab': ['fstab', 'mtab'],
+    \ 'gdb': ['.gdbinit'],
+    \ 'gdmo': ['file.mo', 'file.gdmo'],
+    \ 'gedcom': ['file.ged', 'lltxxxxx.txt'],
+    \ 'gitcommit': ['COMMIT_EDITMSG', 'MERGE_MSG', 'TAG_EDITMSG'],
+    \ 'gitconfig': ['file.git/config', '.gitconfig', '.gitmodules', 'file.git/modules//config', '/.config/git/config'],
+    \ 'gitolite': ['gitolite.conf'],
+    \ 'gitrebase': ['git-rebase-todo'],
+    \ 'gitsendemail': ['.gitsendemail.msg.??????'],
+    \ 'gkrellmrc': ['gkrellmrc', 'gkrellmrc_?'],
+    \ 'gnash': ['gnashrc', '.gnashrc', 'gnashpluginrc', '.gnashpluginrc'],
+    \ 'gnuplot': ['file.gpi'],
+    \ 'go': ['file.go'],
+    \ 'gp': ['file.gp', '.gprc'],
+    \ 'gpg': ['/.gnupg/options', '/.gnupg/gpg.conf', '/usr/*/gnupg/options.skel'],
+    \ 'grads': ['file.gs'],
+    \ 'gretl': ['file.gretl'],
+    \ 'groovy': ['file.gradle', 'file.groovy'],
+    \ 'group': ['any/etc/group', 'any/etc/group-', 'any/etc/group.edit', 'any/etc/gshadow', 'any/etc/gshadow-', 'any/etc/gshadow.edit', 'any/var/backups/group.bak', 'any/var/backups/gshadow.bak'],
+    \ 'grub': ['/boot/grub/menu.lst', '/boot/grub/grub.conf', '/etc/grub.conf'],
+    \ 'gsp': ['file.gsp'],
+    \ 'gtkrc': ['.gtkrc', 'gtkrc'],
+    \ 'haml': ['file.haml'],
+    \ 'hamster': ['file.hsc', 'file.hsm'],
+    \ 'haskell': ['file.hs', 'file.hs-boot'],
+    \ 'haste': ['file.ht'],
+    \ 'hastepreproc': ['file.htpp'],
+    \ 'hb': ['file.hb'],
+    \ 'hercules': ['file.vc', 'file.ev', 'file.sum', 'file.errsum'],
+    \ 'hex': ['file.hex', 'file.h32'],
+    \ 'hgcommit': ['hg-editor-file.txt'],
+    \ 'hog': ['file.hog', 'snort.conf', 'vision.conf'],
+    \ 'hostconf': ['/etc/host.conf'],
+    \ 'hostsaccess': ['/etc/hosts.allow', '/etc/hosts.deny'],
+    \ 'htmlcheetah': ['file.tmpl'],
+    \ 'htmlm4': ['file.html.m4'],
+    \ 'httest': ['file.htt', 'file.htb'],
+    \ 'ibasic': ['file.iba', 'file.ibi'],
+    \ 'icemenu': ['/.icewm/menu'],
+    \ 'icon': ['file.icn'],
+    \ 'indent': ['.indent.pro', 'indentrc'],
+    \ 'inform': ['file.inf', 'file.INF'],
+    \ 'initng': ['/etc/initng/*/file.i', 'file.ii'],
+    \ 'inittab': ['inittab'],
+    \ 'ipfilter': ['ipf.conf', 'ipf6.conf', 'ipf.rules'],
+    \ 'iss': ['file.iss'],
+    \ 'ist': ['file.ist', 'file.mst'],
+    \ 'j': ['file.ijs'],
+    \ 'jal': ['file.jal', 'file.JAL'],
+    \ 'jam': ['file.jpl', 'file.jpr'],
+    \ 'java': ['file.java', 'file.jav'],
+    \ 'javacc': ['file.jj', 'file.jjt'],
+    \ 'javascript': ['file.js', 'file.javascript', 'file.es', 'file.jsx', 'file.mjs'],
+    \ 'jess': ['file.clp'],
+    \ 'jgraph': ['file.jgr'],
+    \ 'jovial': ['file.jov', 'file.j73', 'file.jovial'],
+    \ 'jproperties': ['file.properties', 'file.properties_??', 'file.properties_??_??'],
+    \ 'json': ['file.json', 'file.jsonp', 'file.webmanifest'],
+    \ 'jsp': ['file.jsp'],
+    \ 'kconfig': ['Kconfig', 'Kconfig.debug'],
+    \ 'kivy': ['file.kv'],
+    \ 'kix': ['file.kix'],
+    \ 'kscript': ['file.ks'],
+    \ 'kwt': ['file.k'],
+    \ 'lace': ['file.ace', 'file.ACE'],
+    \ 'latte': ['file.latte', 'file.lte'],
+    \ 'ld': ['file.ld'],
+    \ 'ldif': ['file.ldif'],
+    \ 'less': ['file.less'],
+    \ 'lex': ['file.lex', 'file.l', 'file.lxx', 'file.l++'],
+    \ 'lftp': ['lftp.conf', '.lftprc', '*lftp/rc'],
+    \ 'lhaskell': ['file.lhs'],
+    \ 'libao': ['/etc/libao.conf', '/.libao'],
+    \ 'lifelines': ['file.ll'],
+    \ 'lilo': ['lilo.conf'],
+    \ 'limits': ['/etc/limits', '/etc/*limits.conf', '/etc/*limits.d/file.conf'],
+    \ 'liquid': ['file.liquid'],
+    \ 'lisp': ['sbclrc', '.sbclrc'],
+    \ 'lite': ['file.lite', 'file.lt'],
+    \ 'litestep': ['/LiteStep/*/file.rc'],
+    \ 'loginaccess': ['/etc/login.access'],
+    \ 'logindefs': ['/etc/login.defs'],
+    \ 'logtalk': ['file.lgt'],
+    \ 'lotos': ['file.lot', 'file.lotos'],
+    \ 'lout': ['file.lou', 'file.lout'],
+    \ 'lprolog': ['file.sig'],
+    \ 'lsl': ['file.lsl'],
+    \ 'lss': ['file.lss'],
+    \ 'lua': ['file.lua', 'file.rockspec', 'file.nse'],
+    \ 'lynx': ['lynx.cfg'],
+    \ 'm4': ['file.at'],
+    \ 'mail': ['snd.123', '.letter', '.letter.123', '.followup', '.article', '.article.123', 'pico.123', 'mutt-xx-xxx', 'muttng-xx-xxx', 'ae123.txt', 'file.eml'],
+    \ 'mailaliases': ['/etc/mail/aliases', '/etc/aliases'],
+    \ 'mailcap': ['.mailcap', 'mailcap'],
+    \ 'make': ['file.mk', 'file.mak', 'file.dsp'],
+    \ 'mallard': ['file.page'],
+    \ 'man': ['file.man'],
+    \ 'manconf': ['/etc/man.conf', 'man.config'],
+    \ 'map': ['file.map'],
+    \ 'maple': ['file.mv', 'file.mpl', 'file.mws'],
+    \ 'markdown': ['file.markdown', 'file.mdown', 'file.mkd', 'file.mkdn', 'file.mdwn', 'file.md'],
+    \ 'mason': ['file.mason', 'file.mhtml', 'file.comp'],
+    \ 'master': ['file.mas', 'file.master'],
+    \ 'mel': ['file.mel'],
+    \ 'messages': ['/log/auth', '/log/cron', '/log/daemon', '/log/debug', '/log/kern', '/log/lpr', '/log/mail', '/log/messages', '/log/news/news', '/log/syslog', '/log/user',
+    \     '/log/auth.log', '/log/cron.log', '/log/daemon.log', '/log/debug.log', '/log/kern.log', '/log/lpr.log', '/log/mail.log', '/log/messages.log', '/log/news/news.log', '/log/syslog.log', '/log/user.log',
+    \     '/log/auth.err', '/log/cron.err', '/log/daemon.err', '/log/debug.err', '/log/kern.err', '/log/lpr.err', '/log/mail.err', '/log/messages.err', '/log/news/news.err', '/log/syslog.err', '/log/user.err',
+    \      '/log/auth.info', '/log/cron.info', '/log/daemon.info', '/log/debug.info', '/log/kern.info', '/log/lpr.info', '/log/mail.info', '/log/messages.info', '/log/news/news.info', '/log/syslog.info', '/log/user.info',
+    \      '/log/auth.warn', '/log/cron.warn', '/log/daemon.warn', '/log/debug.warn', '/log/kern.warn', '/log/lpr.warn', '/log/mail.warn', '/log/messages.warn', '/log/news/news.warn', '/log/syslog.warn', '/log/user.warn',
+    \      '/log/auth.crit', '/log/cron.crit', '/log/daemon.crit', '/log/debug.crit', '/log/kern.crit', '/log/lpr.crit', '/log/mail.crit', '/log/messages.crit', '/log/news/news.crit', '/log/syslog.crit', '/log/user.crit',
+    \      '/log/auth.notice', '/log/cron.notice', '/log/daemon.notice', '/log/debug.notice', '/log/kern.notice', '/log/lpr.notice', '/log/mail.notice', '/log/messages.notice', '/log/news/news.notice', '/log/syslog.notice', '/log/user.notice'],
+    \ 'mf': ['file.mf'],
+    \ 'mgl': ['file.mgl'],
+    \ 'mgp': ['file.mgp'],
+    \ 'mib': ['file.mib', 'file.my'],
+    \ 'mix': ['file.mix', 'file.mixal'],
+    \ 'mma': ['file.nb'],
+    \ 'mmp': ['file.mmp'],
+    \ 'modconf': ['/etc/modules.conf', '/etc/modules', '/etc/conf.modules'],
+    \ 'modula2': ['file.m2', 'file.DEF', 'file.MOD', 'file.mi'],
+    \ 'monk': ['file.isc', 'file.monk', 'file.ssc', 'file.tsc'],
+    \ 'moo': ['file.moo'],
+    \ 'mp': ['file.mp'],
+    \ 'mplayerconf': ['mplayer.conf', '/.mplayer/config'],
+    \ 'mrxvtrc': ['mrxvtrc', '.mrxvtrc'],
+    \ 'msidl': ['file.odl', 'file.mof'],
+    \ 'msql': ['file.msql'],
+    \ 'mupad': ['file.mu'],
+    \ 'mush': ['file.mush'],
+    \ 'muttrc': ['Muttngrc', 'Muttrc'],
+    \ 'mysql': ['file.mysql'],
+    \ 'named': ['namedfile.conf', 'rndcfile.conf'],
+    \ 'nanorc': ['/etc/nanorc', 'file.nanorc'],
+    \ 'ncf': ['file.ncf'],
+    \ 'netrc': ['.netrc'],
+    \ 'ninja': ['file.ninja'],
+    \ 'nqc': ['file.nqc'],
+    \ 'nroff': ['file.tr', 'file.nr', 'file.roff', 'file.tmac', 'file.mom'],
+    \ 'nsis': ['file.nsi', 'file.nsh'],
+    \ 'obj': ['file.obj'],
+    \ 'ocaml': ['file.ml', 'file.mli', 'file.mll', 'file.mly', '.ocamlinit'],
+    \ 'occam': ['file.occ'],
+    \ 'omnimark': ['file.xom', 'file.xin'],
+    \ 'openroad': ['file.or'],
+    \ 'ora': ['file.ora'],
+    \ 'pamconf': ['/etc/pam.conf'],
+    \ 'papp': ['file.papp', 'file.pxml', 'file.pxsl'],
+    \ 'pascal': ['file.pas', 'file.dpr'],
+    \ 'passwd': ['any/etc/passwd', 'any/etc/passwd-', 'any/etc/passwd.edit', 'any/etc/shadow', 'any/etc/shadow-', 'any/etc/shadow.edit', 'any/var/backups/passwd.bak', 'any/var/backups/shadow.bak'],
+    \ 'pccts': ['file.g'],
+    \ 'pdf': ['file.pdf'],
+    \ 'perl': ['file.plx', 'file.al', 'file.psgi', 'gitolite.rc', '.gitolite.rc', 'example.gitolite.rc'],
+    \ 'perl6': ['file.p6', 'file.pm6', 'file.pl6'],
+    \ 'pf': ['pf.conf'],
+    \ 'pfmain': ['main.cf'],
+    \ 'php': ['file.php', 'file.php9', 'file.phtml', 'file.ctp'],
+    \ 'pike': ['file.pike', 'file.lpc', 'file.ulpc', 'file.pmod'],
+    \ 'pilrc': ['file.rcp'],
+    \ 'pine': ['.pinerc', 'pinerc', '.pinercex', 'pinercex'],
+    \ 'pinfo': ['/etc/pinforc', '/.pinforc'],
+    \ 'pli': ['file.pli', 'file.pl1'],
+    \ 'plm': ['file.plm', 'file.p36', 'file.pac'],
+    \ 'plp': ['file.plp'],
+    \ 'plsql': ['file.pls', 'file.plsql'],
+    \ 'po': ['file.po', 'file.pot'],
+    \ 'pod': ['file.pod'],
+    \ 'pod6': ['file.pod6'],
+    \ 'postscr': ['file.ps', 'file.pfa', 'file.afm', 'file.eps', 'file.epsf', 'file.epsi', 'file.ai'],
+    \ 'pov': ['file.pov'],
+    \ 'povini': ['.povrayrc'],
+    \ 'ppd': ['file.ppd'],
+    \ 'ppwiz': ['file.it', 'file.ih'],
+    \ 'privoxy': ['file.action'],
+    \ 'proc': ['file.pc'],
+    \ 'procmail': ['.procmail', '.procmailrc'],
+    \ 'prolog': ['file.pdb'],
+    \ 'promela': ['file.pml'],
+    \ 'proto': ['file.proto'],
+    \ 'protocols': ['/etc/protocols'],
+    \ 'psf': ['file.psf'],
+    \ 'pyrex': ['file.pyx', 'file.pxd'],
+    \ 'python': ['file.py', 'file.pyw', '.pythonstartup', '.pythonrc', 'file.ptl'],
+    \ 'quake': ['anybaseq2/file.cfg', 'anyid1/file.cfg', 'quake3/file.cfg'],
+    \ 'radiance': ['file.rad', 'file.mat'],
+    \ 'ratpoison': ['.ratpoisonrc', 'ratpoisonrc'],
+    \ 'rc': ['file.rc', 'file.rch'],
+    \ 'rcs': ['file,v'],
+    \ 'readline': ['.inputrc', 'inputrc'],
+    \ 'remind': ['.reminders', 'file.remind', 'file.rem'],
+    \ 'resolv': ['resolv.conf'],
+    \ 'reva': ['file.frt'],
+    \ 'rexx': ['file.rex', 'file.orx', 'file.rxo', 'file.rxj', 'file.jrexx', 'file.rexxj', 'file.rexx', 'file.testGroup', 'file.testUnit'],
+    \ 'rib': ['file.rib'],
+    \ 'rnc': ['file.rnc'],
+    \ 'rng': ['file.rng'],
+    \ 'robots': ['robots.txt'],
+    \ 'rpcgen': ['file.x'],
+    \ 'rpl': ['file.rpl'],
+    \ 'rst': ['file.rst'],
+    \ 'rtf': ['file.rtf'],
+    \ 'ruby': ['.irbrc', 'irbrc', 'file.rb', 'file.rbw', 'file.gemspec', 'file.ru', 'Gemfile', 'file.builder', 'file.rxml', 'file.rjs', 'file.rant', 'file.rake'],
+    \ 'rust': ['file.rs'],
+    \ 'samba': ['smb.conf'],
+    \ 'sas': ['file.sas'],
+    \ 'sass': ['file.sass'],
+    \ 'sather': ['file.sa'],
+    \ 'sbt': ['file.sbt'],
+    \ 'scala': ['file.scala'],
+    \ 'scheme': ['file.scm', 'file.ss', 'file.rkt'],
+    \ 'scilab': ['file.sci', 'file.sce'],
+    \ 'screen': ['.screenrc', 'screenrc'],
+    \ 'scss': ['file.scss'],
+    \ 'sd': ['file.sd'],
+    \ 'sdc': ['file.sdc'],
+    \ 'sdl': ['file.sdl', 'file.pr'],
+    \ 'sed': ['file.sed'],
+    \ 'sensors': ['/etc/sensors.conf', '/etc/sensors3.conf'],
+    \ 'services': ['/etc/services'],
+    \ 'setserial': ['/etc/serial.conf'],
+    \ 'sh': ['/etc/udev/cdsymlinks.conf'],
+    \ 'sieve': ['file.siv'],
+    \ 'simula': ['file.sim'],
+    \ 'sinda': ['file.sin', 'file.s85'],
+    \ 'sisu': ['file.sst', 'file.ssm', 'file.ssi', 'file.-sst', 'file._sst', 'file.sst.meta', 'file.-sst.meta', 'file._sst.meta'],
+    \ 'skill': ['file.il', 'file.ils', 'file.cdf'],
+    \ 'slang': ['file.sl'],
+    \ 'slice': ['file.ice'],
+    \ 'slpconf': ['/etc/slp.conf'],
+    \ 'slpreg': ['/etc/slp.reg'],
+    \ 'slpspi': ['/etc/slp.spi'],
+    \ 'slrnrc': ['.slrnrc'],
+    \ 'slrnsc': ['file.score'],
+    \ 'sm': ['sendmail.cf'],
+    \ 'smarty': ['file.tpl'],
+    \ 'smcl': ['file.hlp', 'file.ihlp', 'file.smcl'],
+    \ 'smith': ['file.smt', 'file.smith'],
+    \ 'sml': ['file.sml'],
+    \ 'snobol4': ['file.sno', 'file.spt'],
+    \ 'spec': ['file.spec'],
+    \ 'spice': ['file.sp', 'file.spice'],
+    \ 'spup': ['file.speedup', 'file.spdata', 'file.spd'],
+    \ 'spyce': ['file.spy', 'file.spi'],
+    \ 'sql': ['file.tyb', 'file.typ', 'file.tyc', 'file.pkb', 'file.pks'],
+    \ 'sqlj': ['file.sqlj'],
+    \ 'sqr': ['file.sqr', 'file.sqi'],
+    \ 'squid': ['squid.conf'],
+    \ 'srec': ['file.s19', 'file.s28', 'file.s37', 'file.mot', 'file.srec'],
+    \ 'sshconfig': ['ssh_config', '/.ssh/config'],
+    \ 'sshdconfig': ['sshd_config'],
+    \ 'st': ['file.st'],
+    \ 'stata': ['file.ado', 'file.do', 'file.imata', 'file.mata'],
+    \ 'stp': ['file.stp'],
+    \ 'sudoers': ['any/etc/sudoers', 'sudoers.tmp'],
+    \ 'svg': ['file.svg'],
+    \ 'svn': ['svn-commitfile.tmp'],
+    \ 'sysctl': ['/etc/sysctl.conf', '/etc/sysctl.d/file.conf'],
+    \ 'systemd': ['any/systemd/file.automount', 'any/systemd/file.mount', 'any/systemd/file.path', 'any/systemd/file.service', 'any/systemd/file.socket', 'any/systemd/file.swap', 'any/systemd/file.target', 'any/systemd/file.timer'],
+    \ 'systemverilog': ['file.sv', 'file.svh'],
+    \ 'tags': ['tags'],
+    \ 'tak': ['file.tak'],
+    \ 'taskdata': ['pending.data', 'completed.data', 'undo.data'],
+    \ 'taskedit': ['file.task'],
+    \ 'tcl': ['file.tcl', 'file.tk', 'file.itcl', 'file.itk', 'file.jacl'],
+    \ 'teraterm': ['file.ttl'],
+    \ 'terminfo': ['file.ti'],
+    \ 'tex': ['file.latex', 'file.sty', 'file.dtx', 'file.ltx', 'file.bbl'],
+    \ 'texinfo': ['file.texinfo', 'file.texi', 'file.txi'],
+    \ 'texmf': ['texmf.cnf'],
+    \ 'text': ['file.text', 'README'],
+    \ 'tf': ['file.tf', '.tfrc', 'tfrc'],
+    \ 'tidy': ['.tidyrc', 'tidyrc'],
+    \ 'tilde': ['file.t.html'],
+    \ 'tli': ['file.tli'],
+    \ 'tmux': ['tmuxfile.conf', '.tmuxfile.conf'],
+    \ 'tpp': ['file.tpp'],
+    \ 'treetop': ['file.treetop'],
+    \ 'trustees': ['trustees.conf'],
+    \ 'tsalt': ['file.slt'],
+    \ 'tsscl': ['file.tsscl'],
+    \ 'tssgm': ['file.tssgm'],
+    \ 'tssop': ['file.tssop'],
+    \ 'twig': ['file.twig'],
+    \ 'uc': ['file.uc'],
+    \ 'udevconf': ['/etc/udev/udev.conf'],
+    \ 'udevperm': ['/etc/udev/permissions.d/file.permissions'],
+    \ 'uil': ['file.uit', 'file.uil'],
+    \ 'updatedb': ['/etc/updatedb.conf'],
+    \ 'upstart': ['/usr/share/upstart/file.conf', '/usr/share/upstart/file.override', '/etc/init/file.conf', '/etc/init/file.override', '/.init/file.conf', '/.init/file.override', '/.config/upstart/file.conf', '/.config/upstart/file.override'],
+    \ 'upstreamdat': ['upstream.dat', 'UPSTREAM.DAT', 'upstream.file.dat', 'UPSTREAM.FILE.DAT', 'file.upstream.dat', 'FILE.UPSTREAM.DAT'],
+    \ 'upstreaminstalllog': ['upstreaminstall.log', 'UPSTREAMINSTALL.LOG', 'upstreaminstall.file.log', 'UPSTREAMINSTALL.FILE.LOG', 'file.upstreaminstall.log', 'FILE.UPSTREAMINSTALL.LOG'],
+    \ 'upstreamlog': ['fdrupstream.log', 'upstream.log', 'UPSTREAM.LOG', 'upstream.file.log', 'UPSTREAM.FILE.LOG', 'file.upstream.log', 'FILE.UPSTREAM.LOG', 'UPSTREAM-file.log', 'UPSTREAM-FILE.LOG'],
+    \ 'usserverlog': ['usserver.log', 'USSERVER.LOG', 'usserver.file.log', 'USSERVER.FILE.LOG', 'file.usserver.log', 'FILE.USSERVER.LOG'],
+    \ 'usw2kagtlog': ['usw2kagt.log', 'USW2KAGT.LOG', 'usw2kagt.file.log', 'USW2KAGT.FILE.LOG', 'file.usw2kagt.log', 'FILE.USW2KAGT.LOG'],
+    \ 'vb': ['file.sba', 'file.vb', 'file.vbs', 'file.dsm', 'file.ctl'],
+    \ 'vera': ['file.vr', 'file.vri', 'file.vrh'],
+    \ 'verilog': ['file.v'],
+    \ 'verilogams': ['file.va', 'file.vams'],
+    \ 'vgrindefs': ['vgrindefs'],
+    \ 'vhdl': ['file.hdl', 'file.vhd', 'file.vhdl', 'file.vbe', 'file.vst'],
+    \ 'vim': ['file.vim', 'file.vba', '.exrc', '_exrc'],
+    \ 'viminfo': ['.viminfo', '_viminfo'],
+    \ 'vmasm': ['file.mar'],
+    \ 'voscm': ['file.cm'],
+    \ 'vrml': ['file.wrl'],
+    \ 'vroom': ['file.vroom'],
+    \ 'webmacro': ['file.wm'],
+    \ 'wget': ['.wgetrc', 'wgetrc'],
+    \ 'winbatch': ['file.wbt'],
+    \ 'wml': ['file.wml'],
+    \ 'wsml': ['file.wsml'],
+    \ 'wvdial': ['wvdial.conf', '.wvdialrc'],
+    \ 'xdefaults': ['.Xdefaults', '.Xpdefaults', '.Xresources', 'xdm-config', 'file.ad'],
+    \ 'xhtml': ['file.xhtml', 'file.xht'],
+    \ 'xinetd': ['/etc/xinetd.conf'],
+    \ 'xmath': ['file.msc', 'file.msf'],
+    \ 'xml': ['/etc/blkid.tab', '/etc/blkid.tab.old', 'file.xmi', 'file.csproj', 'file.csproj.user', 'file.ts', 'file.ui', 'file.tpm', '/etc/xdg/menus/file.menu', 'fglrxrc', 'file.xlf', 'file.xliff', 'file.xul'],
+    \ 'xmodmap': ['anyXmodmap'],
+    \ 'xf86conf': ['xorg.conf', 'xorg.conf-4'],
+    \ 'xpm2': ['file.xpm2'],
+    \ 'xquery': ['file.xq', 'file.xql', 'file.xqm', 'file.xquery', 'file.xqy'],
+    \ 'xs': ['file.xs'],
+    \ 'xsd': ['file.xsd'],
+    \ 'xslt': ['file.xsl', 'file.xslt'],
+    \ 'yacc': ['file.yy', 'file.yxx', 'file.y++'],
+    \ 'yaml': ['file.yaml', 'file.yml'],
+    \ 'z8a': ['file.z8a'],
+    \ 'zimbu': ['file.zu'],
+    \ 'zimbutempl': ['file.zut'],
+    \ 'zsh': ['.zprofile', '/etc/zprofile', '.zfbfmarks', 'file.zsh'],
+    \
+    \ 'aap': ['file.aap'],
+    \ 'help': [$VIMRUNTIME . '/doc/help.txt'],
+    \ 'xpm': ['file.xpm'],
+    \ }
+
+func Test_filetype_detection()
+  filetype on
+  for [ft, names] in items(s:filename_checks)
+    for i in range(0, len(names) - 1)
+      new
+      try
+        exe 'edit ' . names[i]
+      catch
+	call assert_report('cannot edit "' . names[i] . '": ' . v:errmsg)
+      endtry
+      call assert_equal(ft, &filetype, 'with file name: ' . names[i])
+      bwipe!
+    endfor
+  endfor
+endfunc
diff --git a/src/version.c b/src/version.c
index 326f33bf2..77e634525 100644
--- a/src/version.c
+++ b/src/version.c
@@ -770,6 +770,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    894,
+/**/
     893,
 /**/
     892,