" Test :setfiletype

" Make VIMRUNTIME and &rtp absolute.
" Otherwise, a :lcd inside a test would break the relative ../../runtime path.
let $VIMRUNTIME = fnamemodify($VIMRUNTIME, ':p')
let &rtp = join(map(split(&rtp, ','), 'fnamemodify(v:val, ":p")'), ',')

func Test_backup_strip()
  filetype on
  let fname = 'Xdetect.js~~~~~~~~~~~'
  call writefile(['one', 'two', 'three'], fname, 'D')
  exe 'edit ' .. fname
  call assert_equal('javascript', &filetype)

  bwipe!
  filetype off
endfunc

func Test_detection()
  filetype on
  augroup filetypedetect
    au BufNewFile,BufRead *	call assert_equal(1, did_filetype())
  augroup END
  new something.vim
  call assert_equal('vim', &filetype)

  bwipe!
  filetype off
endfunc

func Test_conf_type()
  filetype on
  call writefile(['# some comment', 'must be conf'], 'Xconffile', 'D')
  augroup filetypedetect
    au BufNewFile,BufRead *	call assert_equal(0, did_filetype())
  augroup END
  split Xconffile
  call assert_equal('conf', &filetype)

  bwipe!
  filetype off
endfunc

func Test_other_type()
  filetype on
  augroup filetypedetect
    au BufNewFile,BufRead *	call assert_equal(0, did_filetype())
    au BufNewFile,BufRead Xotherfile	setf testfile
    au BufNewFile,BufRead *	call assert_equal(1, did_filetype())
  augroup END
  call writefile(['# some comment', 'must be conf'], 'Xotherfile', 'D')
  split Xotherfile
  call assert_equal('testfile', &filetype)

  bwipe!
  filetype off
endfunc

" If $XDG_CONFIG_HOME is set return "fname" expanded in a list.
" Otherwise return an empty list.
def s:WhenConfigHome(fname: string): list<string>
  if exists('$XDG_CONFIG_HOME')
    return [expand(fname)]
  endif
  return []
enddef

" Return the name used for the $XDG_CONFIG_HOME directory.
def s:GetConfigHome(): string
  return getcwd() .. '/Xdg_config_home'
enddef

" saved value of $XDG_CONFIG_HOME
let s:saveConfigHome = ''

def s:SetupConfigHome()
  if empty(windowsversion())
    s:saveConfigHome = $XDG_CONFIG_HOME
    setenv("XDG_CONFIG_HOME", GetConfigHome())
  endif
enddef

" Filetypes detected just from matching the file name.
" First one is checking that these files have no filetype.
def s:GetFilenameChecks(): dict<list<string>>
  return {
    none: ['bsd', 'some-bsd'],
    8th: ['file.8th'],
    a2ps: ['/etc/a2ps.cfg', '/etc/a2ps/file.cfg', 'a2psrc', '.a2psrc', 'any/etc/a2ps.cfg', 'any/etc/a2ps/file.cfg'],
    a65: ['file.a65'],
    aap: ['file.aap'],
    abap: ['file.abap'],
    abc: ['file.abc'],
    abel: ['file.abl'],
    abnf: ['file.abnf'],
    acedb: ['file.wrm'],
    ada: ['file.adb', 'file.ads', 'file.ada', 'file.gpr'],
    ahdl: ['file.tdf'],
    aidl: ['file.aidl'],
    alsaconf: ['.asoundrc', '/usr/share/alsa/alsa.conf', '/etc/asound.conf', 'any/etc/asound.conf', 'any/usr/share/alsa/alsa.conf'],
    aml: ['file.aml'],
    ampl: ['file.run'],
    ant: ['build.xml'],
    antlr4: ['parser.g4'],
    apache: ['.htaccess', '/etc/httpd/file.conf', '/etc/apache2/sites-2/file.com', '/etc/apache2/some.config', '/etc/apache2/conf.file/conf',
      '/etc/apache2/mods-some/file', '/etc/apache2/sites-some/file', '/etc/httpd/conf.d/file.config', '/etc/apache2/conf.file/file', '/etc/apache2/file.conf',
      '/etc/apache2/file.conf-file', '/etc/apache2/mods-file/file', '/etc/apache2/sites-file/file', '/etc/apache2/sites-file/file.com',
      '/etc/httpd/conf.d/file.conf', '/etc/httpd/conf.d/file.conf-file', 'access.conf', 'access.conf-file', 'any/etc/apache2/conf.file/file',
      'any/etc/apache2/file.conf', 'any/etc/apache2/file.conf-file', 'any/etc/apache2/mods-file/file', 'any/etc/apache2/sites-file/file',
      'any/etc/apache2/sites-file/file.com', 'any/etc/httpd/conf.d/file.conf', 'any/etc/httpd/conf.d/file.conf-file', 'any/etc/httpd/file.conf',
      'apache.conf', 'apache.conf-file', 'apache2.conf', 'apache2.conf-file', 'httpd.conf', 'httpd.conf-file', 'httpd-some.conf',
      'httpd-some.conf-file', 'srm.conf', 'srm.conf-file', 'proxy-html.conf', 'proxy-html.conf-file', '/etc/httpd/mods-some/file',
      '/etc/httpd/sites-some/file', '/etc/httpd/conf.file/conf'],
    apachestyle: ['/etc/proftpd/file.config,/etc/proftpd/conf.file/file', '/etc/proftpd/conf.file/file', '/etc/proftpd/file.conf', '/etc/proftpd/file.conf-file',
      'any/etc/proftpd/conf.file/file', 'any/etc/proftpd/file.conf', 'any/etc/proftpd/file.conf-file', 'proftpd.conf', 'proftpd.conf-file'],
    apkbuild: ['APKBUILD'],
    applescript: ['file.scpt', 'file.applescript'],
    aptconf: ['apt.conf', '/.aptitude/config', 'any/.aptitude/config'],
    arch: ['.arch-inventory', '=tagging-method'],
    arduino: ['file.ino', 'file.pde'],
    art: ['file.art'],
    asciidoc: ['file.asciidoc', 'file.adoc'],
    asm: ['file.s', 'file.S', 'file.a', 'file.A'],
    asn: ['file.asn', 'file.asn1'],
    asterisk: ['asterisk/file.conf', 'asterisk/file.conf-file', 'some-asterisk/file.conf', 'some-asterisk/file.conf-file'],
    astro: ['file.astro'],
    asy: ['file.asy'],
    atlas: ['file.atl', 'file.as'],
    authzed: ['schema.zed'],
    autohotkey: ['file.ahk'],
    autoit: ['file.au3'],
    automake: ['GNUmakefile.am', 'makefile.am', 'Makefile.am'],
    autopkgtest: ['/debian/tests/control', 'any/debian/tests/control'],
    ave: ['file.ave'],
    awk: ['file.awk', 'file.gawk'],
    b: ['file.mch', 'file.ref', 'file.imp'],
    basic: ['file.bas', 'file.bi', 'file.bm'],
    bass: ['file.bass'],
    bc: ['file.bc'],
    bdf: ['file.bdf'],
    beancount: ['file.beancount', 'file.bean'],
    bib: ['file.bib'],
    bicep: ['file.bicep'],
    bicep-params: ['file.bicepparam'],
    bindzone: ['named.root', '/bind/db.file', '/named/db.file', 'any/bind/db.file', 'any/named/db.file', 'foobar.zone'],
    bitbake: ['file.bb', 'file.bbappend', 'file.bbclass', 'build/conf/local.conf', 'meta/conf/layer.conf', 'build/conf/bbappend.conf', 'meta-layer/conf/distro/foo.conf',
      'project-spec/configs/zynqmp-generic-xczu7ev.conf'],
    blade: ['file.blade.php'],
    blank: ['file.bl'],
    blueprint: ['file.blp'],
    bp: ['Android.bp'],
    bpftrace: ['file.bt'],
    brighterscript: ['file.bs'],
    brightscript: ['file.brs'],
    bsdl: ['file.bsd', 'file.bsdl'],
    bst: ['file.bst'],
    bzl: ['file.bazel', 'file.bzl', 'file.bxl', 'WORKSPACE', 'WORKSPACE.bzlmod'],
    bzr: ['bzr_log.any', 'bzr_log.file'],
    c: ['enlightenment/file.cfg', 'file.qc', 'file.c', 'some-enlightenment/file.cfg', 'file.mdh', 'file.epro'],
    c3: ['file.c3', 'file.c3i', 'file.c3t'],
    cabal: ['file.cabal'],
    cabalconfig: ['cabal.config', expand("$HOME/.config/cabal/config")] + WhenConfigHome('$XDG_CONFIG_HOME/cabal/config'),
    cabalproject: ['cabal.project', 'cabal.project.local'],
    cairo: ['file.cairo'],
    calendar: ['calendar', '/.calendar/file', '/share/calendar/any/calendar.file', '/share/calendar/calendar.file', 'any/share/calendar/any/calendar.file', 'any/share/calendar/calendar.file'],
    cangjie: ['file.cj'],
    capnp: ['file.capnp'],
    catalog: ['catalog', 'sgml.catalogfile', 'sgml.catalog', 'sgml.catalog-file'],
    cdc: ['file.cdc'],
    cdl: ['file.cdl'],
    cdrdaoconf: ['/etc/cdrdao.conf', '/etc/defaults/cdrdao', '/etc/default/cdrdao', '.cdrdao', 'any/etc/cdrdao.conf', 'any/etc/default/cdrdao', 'any/etc/defaults/cdrdao'],
    cdrtoc: ['file.toc'],
    cedar: ['file.cedar'],
    cel: ['file.cel'],
    cf: ['file.cfm', 'file.cfi', 'file.cfc'],
    cfengine: ['cfengine.conf'],
    cfg: ['file.hgrc', 'filehgrc', 'hgrc', 'some-hgrc'],
    cgdbrc: ['cgdbrc'],
    ch: ['file.chf'],
    chaiscript: ['file.chai'],
    chaskell: ['file.chs'],
    chatito: ['file.chatito'],
    chill: ['file..ch'],
    chordpro: ['file.chopro', 'file.crd', 'file.cho', 'file.crdpro', 'file.chordpro'],
    chuck: ['file.ck'],
    cl: ['file.eni'],
    clean: ['file.dcl', 'file.icl'],
    clojure: ['file.clj', 'file.cljs', 'file.cljx', 'file.cljc', 'init.trans', 'any/etc/translate-shell', '.trans'],
    cmake: ['CMakeLists.txt', 'file.cmake', 'file.cmake.in'],
    cmakecache: ['CMakeCache.txt'],
    cmod: ['file.cmod'],
    cmusrc: ['any/.cmus/autosave', 'any/.cmus/rc', 'any/.cmus/command-history', 'any/.cmus/file.theme', 'any/cmus/rc', 'any/cmus/file.theme', '/.cmus/autosave', '/.cmus/command-history', '/.cmus/file.theme', '/.cmus/rc', '/cmus/file.theme', '/cmus/rc'],
    cobol: ['file.cbl', 'file.cob'],
    coco: ['file.atg'],
    codeowners: ['CODEOWNERS'],
    conaryrecipe: ['file.recipe'],
    concerto: ['file.cto'],
    conf: ['auto.master', 'file.conf', 'texdoc.cnf', '.x11vncrc', '.chktexrc', '.ripgreprc', 'ripgreprc', 'file.ctags'],
    config: ['/etc/hostname.file', 'any/etc/hostname.file', 'configure.in', 'configure.ac', 'file.at', 'aclocal.m4'],
    confini: ['pacman.conf', 'paru.conf', 'mpv.conf', 'any/.aws/config', 'any/.aws/credentials', 'any/.aws/cli/alias', 'file.nmconnection',
              'any/.gnuradio/grc.conf', 'any/gnuradio/config.conf', 'any/gnuradio/conf.d/modtool.conf'],
    context: ['tex/context/any/file.tex', 'file.mkii', 'file.mkiv', 'file.mkvi', 'file.mkxl', 'file.mklx'],
    cook: ['file.cook'],
    corn: ['file.corn'],
    cpon: ['file.cpon'],
    cpp: ['file.cxx', 'file.c++', 'file.hh', 'file.hxx', 'file.hpp', 'file.ipp', 'file.ixx', 'file.moc', 'file.tcc', 'file.inl', 'file.tlh', 'file.cppm', 'file.ccm', 'file.cxxm', 'file.c++m', 'file.mpp'],
    cqlang: ['file.cql'],
    crm: ['file.crm'],
    crontab: ['crontab', 'crontab.file', '/etc/cron.d/file', 'any/etc/cron.d/file'],
    crystal: ['file.cr'],
    cs: ['file.cs', 'file.csx', 'file.cake'],
    csc: ['file.csc'],
    csdl: ['file.csdl'],
    csp: ['file.csp', 'file.fdr'],
    css: ['file.css'],
    csv: ['file.csv'],
    cterm: ['file.con'],
    cucumber: ['file.feature'],
    cuda: ['file.cu', 'file.cuh'],
    cue: ['file.cue'],
    cupl: ['file.pld'],
    cuplsim: ['file.si'],
    cvs: ['cvs123'],
    cvsrc: ['.cvsrc'],
    cynpp: ['file.cyn'],
    cypher: ['file.cypher'],
    d: ['file.d'],
    dafny: ['file.dfy'],
    dart: ['file.dart', 'file.drt'],
    datascript: ['file.ds'],
    dax: ['file.dax'],
    dcd: ['file.dcd'],
    deb822sources: ['/etc/apt/sources.list.d/file.sources', 'any/etc/apt/sources.list.d/file.sources'],
    debchangelog: ['changelog.Debian', 'changelog.dch', 'NEWS.Debian', 'NEWS.dch', '/debian/changelog'],
    debcontrol: ['/debian/control', 'any/debian/control', 'any/DEBIAN/control'],
    debcopyright: ['/debian/copyright', 'any/debian/copyright'],
    debsources: ['/etc/apt/sources.list', '/etc/apt/sources.list.d/file.list', 'any/etc/apt/sources.list', 'any/etc/apt/sources.list.d/file.list'],
    def: ['file.def'],
    denyhosts: ['denyhosts.conf'],
    desc: ['file.desc'],
    desktop: ['file.desktop', '.directory', 'file.directory'],
    dhall: ['file.dhall'],
    dictconf: ['dict.conf', '.dictrc'],
    dictdconf: ['dictd.conf', 'dictdfile.conf', 'dictd-file.conf'],
    diff: ['file.diff', 'file.rej'],
    dircolors: ['.dir_colors', '.dircolors', '/etc/DIR_COLORS', 'any/etc/DIR_COLORS'],
    djot: ['file.dj', 'file.djot'],
    dnsmasq: ['/etc/dnsmasq.conf', '/etc/dnsmasq.d/file', 'any/etc/dnsmasq.conf', 'any/etc/dnsmasq.d/file'],
    dockerfile: ['Containerfile', 'Dockerfile', 'dockerfile', 'file.Dockerfile', 'file.dockerfile', 'Dockerfile.debian', 'Containerfile.something'],
    dosbatch: ['file.bat'],
    dosini: ['/etc/yum.conf', '/etc/nfs.conf', '/etc/nfsmount.conf', 'file.ini',
             'npmrc', '.npmrc', 'php.ini', 'php.ini-5', 'php.ini-file', 'php-fpm.conf', 'php-fpm.conf.default', 'www.conf', 'www.conf.default',
             '/etc/yum.repos.d/file', 'any/etc/yum.conf', 'any/etc/yum.repos.d/file', 'file.wrap',
             'file.vbp', 'ja2.ini', 'JA2.INI', 'mimeapps.list', 'pip.conf', 'setup.cfg', 'pudb.cfg',
             '.coveragerc', '.pypirc', '.gitlint', '.oelint.cfg', 'pylintrc', '.pylintrc',
             '/home/user/.config/bpython/config', '/home/user/.config/mypy/config', '.wakatime.cfg', '.replyrc',
             'psprint.conf', 'sofficerc', 'any/.config/lxqt/globalkeyshortcuts.conf', 'any/.config/screengrab/screengrab.conf',
             'any/.local/share/flatpak/repo/config',
             '.alsoftrc', 'alsoft.conf', 'alsoft.ini', 'alsoftrc.sample',
             '/etc/wireguard/wg0.conf',
             '.notmuch-config', '.notmuch-config.myprofile',
             '~/.config/notmuch/myprofile/config'] + WhenConfigHome('$XDG_CONFIG_HOME/notmuch/myprofile/config'),
    dot: ['file.dot', 'file.gv'],
    dracula: ['file.drac', 'file.drc', 'file.lvs', 'file.lpe', 'drac.file'],
    dtd: ['file.dtd'],
    dtrace: ['/usr/lib/dtrace/io.d'],
    dts: ['file.dts', 'file.dtsi', 'file.dtso', 'file.its', 'file.keymap', 'file.overlay'],
    dune: ['jbuild', 'dune', 'dune-project', 'dune-workspace', 'dune-file'],
    dylan: ['file.dylan'],
    dylanintr: ['file.intr'],
    dylanlid: ['file.lid'],
    earthfile: ['Earthfile'],
    ecd: ['file.ecd'],
    edif: ['file.edf', 'file.edif', 'file.edo'],
    editorconfig: ['.editorconfig'],
    eelixir: ['file.eex', 'file.leex'],
    elinks: ['elinks.conf'],
    elixir: ['file.ex', 'file.exs', 'mix.lock'],
    elm: ['file.elm'],
    elmfilt: ['filter-rules'],
    elsa: ['file.lc'],
    elvish: ['file.elv'],
    env: ['.env', '.env.file', 'file.env'],
    epuppet: ['file.epp'],
    erlang: ['file.erl', 'file.hrl', 'file.yaws', 'file.app.src', 'rebar.config'],
    eruby: ['file.erb', 'file.rhtml'],
    esdl: ['file.esdl'],
    esmtprc: ['anyesmtprc', 'esmtprc', 'some-esmtprc'],
    esqlc: ['file.ec', 'file.EC'],
    esterel: ['file.strl'],
    eterm: ['anyEterm/file.cfg', 'Eterm/file.cfg', 'some-Eterm/file.cfg'],
    execline: ['/etc/s6-rc/run', './s6-rc/src/dbus-srv/up', '/sbin/s6-shutdown'],
    exim: ['exim.conf'],
    expect: ['file.exp'],
    exports: ['exports'],
    factor: ['file.factor'],
    falcon: ['file.fal'],
    fan: ['file.fan', 'file.fwt'],
    faust: ['file.dsp', 'file.lib'],
    fennel: ['file.fnl', '.fennelrc', 'fennelrc', 'file.fnlm'],
    fetchmail: ['.fetchmailrc'],
    fga: ['file.fga'],
    fgl: ['file.4gl', 'file.4gh', 'file.m4gl'],
    firrtl: ['file.fir'],
    fish: ['file.fish'],
    flix: ['file.flix'],
    fluent: ['file.ftl'],
    focexec: ['file.fex', 'file.focexec'],
    form: ['file.frm'],
    forth: ['file.ft', 'file.fth', 'file.4th'],
    fortran: ['file.f', 'file.for', 'file.fortran', 'file.fpp', 'file.ftn', 'file.f77', 'file.f90', 'file.f95', 'file.f03', 'file.f08'],
    fpcmake: ['file.fpc'],
    framescript: ['file.fsl'],
    freebasic: ['file.fb'],
    fsh: ['file.fsh'],
    fsharp: ['file.fs', 'file.fsi', 'file.fsx'],
    fstab: ['fstab', 'mtab'],
    func: ['file.fc'],
    fusion: ['file.fusion'],
    fvwm: ['/.fvwm/file', 'any/.fvwm/file', '.fvwmrc', 'foo.fvwmrc', 'fvwmrc.foo', '.fvwm2rc', 'foo.fvwm2rc', 'fvwm2rc.foo', 'foo.fvwm95.hook', 'fvwm95.foo.hook'],
    fvwm2m4: ['.fvwm2rc.m4', 'foo.fvwm2rc.m4', 'fvwm2rc.foo.m4'],
    gdb: ['.gdbinit', 'gdbinit', '.cuda-gdbinit', 'cuda-gdbinit', 'file.gdb', '.config/gdbearlyinit', '.gdbearlyinit'],
    gdmo: ['file.mo', 'file.gdmo'],
    gdresource: ['file.tscn', 'file.tres'],
    gdscript: ['file.gd'],
    gdshader: ['file.gdshader', 'file.shader'],
    gedcom: ['file.ged', 'lltxxxxx.txt', '/tmp/lltmp', '/tmp/lltmp-file', 'any/tmp/lltmp', 'any/tmp/lltmp-file'],
    gel: ['file.gel'],
    gemtext: ['file.gmi', 'file.gemini'],
    ghostty: ['ghostty/config', 'ghostty/keymaps.ghostty', '/.config/ghostty/config', '/.config/ghostty/keymaps.ghostty',
              '~/Library/Application Support/com.mitchellh.ghostty/config.ghostty', '~/Library/Application Support/com.mitchellh.ghostty/config',
              '~/.config/ghostty/themes/Custom Theme', '/usr/share/ghostty/themes/Builtin Theme'],
    gift: ['file.gift'],
    gitattributes: ['file.git/info/attributes', '.gitattributes', '/.config/git/attributes', '/etc/gitattributes', '/usr/local/etc/gitattributes', 'some.git/info/attributes'] + WhenConfigHome('$XDG_CONFIG_HOME/git/attributes'),
    gitcommit: ['COMMIT_EDITMSG', 'MERGE_MSG', 'TAG_EDITMSG', 'NOTES_EDITMSG', 'EDIT_DESCRIPTION'],
    gitconfig: ['file.git/config', 'file.git/config.worktree', 'file.git/worktrees/x/config.worktree', '.gitconfig', '.gitmodules', 'file.git/modules//config', '/.config/git/config', '/etc/gitconfig', '/usr/local/etc/gitconfig', '/etc/gitconfig.d/file', 'any/etc/gitconfig.d/file', '/.gitconfig.d/file', 'any/.config/git/config', 'any/.gitconfig.d/file', 'some.git/config', 'some.git/modules/any/config'] + WhenConfigHome('$XDG_CONFIG_HOME/git/config'),
    gitignore: ['file.git/info/exclude', '.gitignore', '/.config/git/ignore', 'some.git/info/exclude'] + WhenConfigHome('$XDG_CONFIG_HOME/git/ignore') + ['.prettierignore', '.fdignore', '/.config/fd/ignore', '.ignore', '.rgignore', '.dockerignore', '.containerignore', '.npmignore', '.vscodeignore'],
    gitolite: ['gitolite.conf', '/gitolite-admin/conf/file', 'any/gitolite-admin/conf/file'],
    gitrebase: ['git-rebase-todo'],
    gitsendemail: ['.gitsendemail.msg.xxxxxx'],
    gkrellmrc: ['gkrellmrc', 'gkrellmrc_x'],
    gleam: ['file.gleam'],
    glsl: ['file.glsl', 'file.vert', 'file.tesc', 'file.tese', 'file.geom', 'file.frag', 'file.comp', 'file.rgen', 'file.rmiss', 'file.rchit', 'file.rahit', 'file.rint', 'file.rcall'],
    gn: ['file.gn', 'file.gni'],
    gnash: ['gnashrc', '.gnashrc', 'gnashpluginrc', '.gnashpluginrc'],
    gnuplot: ['file.gpi', '.gnuplot', 'file.gnuplot', '.gnuplot_history'],
    go: ['file.go'],
    goaccess: ['goaccess.conf'],
    gomod: ['go.mod'],
    gosum: ['go.sum', 'go.work.sum'],
    gowork: ['go.work'],
    gp: ['file.gp', '.gprc'],
    gpg: ['/.gnupg/options', '/.gnupg/gpg.conf', '/usr/any/gnupg/options.skel', 'any/.gnupg/gpg.conf', 'any/.gnupg/options', 'any/usr/any/gnupg/options.skel'],
    grads: ['file.gs'],
    graphql: ['file.graphql', 'file.graphqls', 'file.gql'],
    gretl: ['file.gretl'],
    groff: ['file.groff', 'file.mom'],
    groovy: ['file.gradle', 'file.groovy', 'Jenkinsfile'],
    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', '/etc/group', '/etc/group-', '/etc/group.edit', '/etc/gshadow', '/etc/gshadow-', '/etc/gshadow.edit', '/var/backups/group.bak', '/var/backups/gshadow.bak'],
    grub: ['/boot/grub/menu.lst', '/boot/grub/grub.conf', '/etc/grub.conf', 'any/boot/grub/grub.conf', 'any/boot/grub/menu.lst', 'any/etc/grub.conf'],
    gsp: ['file.gsp'],
    gtkrc: ['.gtkrc', 'gtkrc', '.gtkrc-file', 'gtkrc-file'],
    gyp: ['file.gyp', 'file.gypi'],
    hack: ['file.hack', 'file.hackpartial'],
    haml: ['file.haml'],
    hamster: ['file.hsm'],
    handlebars: ['file.hbs'],
    hare: ['file.ha'],
    haskell: ['file.hs', 'file.hsc', 'file.hs-boot', 'file.hsig'],
    haskellpersistent: ['file.persistentmodels'],
    haste: ['file.ht'],
    hastepreproc: ['file.htpp'],
    haxe: ['file.hx'],
    hb: ['file.hb'],
    hcl: ['file.hcl'],
    heex: ['file.heex'],
    hercules: ['file.vc', 'file.ev', 'file.sum', 'file.errsum'],
    hex: ['file.hex', 'file.ihex', 'file.ihe', 'file.ihx', 'file.int', 'file.mcs', 'file.h32', 'file.h80', 'file.h86', 'file.a43', 'file.a90'],
    hgcommit: ['hg-editor-file.txt'],
    hjson: ['file.hjson'],
    hlsplaylist: ['file.m3u', 'file.m3u8'],
    hog: ['file.hog', 'snort.conf', 'vision.conf'],
    hollywood: ['file.hws'],
    hoon: ['file.hoon'],
    hostconf: ['/etc/host.conf', 'any/etc/host.conf'],
    hostsaccess: ['/etc/hosts.allow', '/etc/hosts.deny', 'any/etc/hosts.allow', 'any/etc/hosts.deny'],
    # file.component.html should be HTML, not Angular, see #13594
    html: ['file.html', 'file.htm', 'file.component.html'],
    htmlm4: ['file.html.m4'],
    httest: ['file.htt', 'file.htb'],
    http: ['file.http'],
    hurl: ['file.hurl'],
    hy: ['file.hy', '.hy-history'],
    hylo: ['file.hylo'],
    hyprlang: ['hyprlock.conf', 'hyprland.conf', 'hypridle.conf', 'hyprpaper.conf', '/hypr/foo.conf'],
    i3config: ['/home/user/.i3/config', '/home/user/.config/i3/config', '/etc/i3/config', '/etc/xdg/i3/config'],
    ibasic: ['file.iba', 'file.ibi'],
    icemenu: ['/.icewm/menu', 'any/.icewm/menu'],
    icon: ['file.icn'],
    idris2: ['file.idr'],
    indent: ['.indent.pro', 'indentrc'],
    inform: ['file.inf', 'file.INF'],
    initng: ['/etc/initng/any/file.i', 'file.ii', 'any/etc/initng/any/file.i'],
    inittab: ['inittab'],
    inko: ['file.inko'],
    ipfilter: ['ipf.conf', 'ipf6.conf', 'ipf.rules'],
    ipkg: ['file.ipkg'],
    iss: ['file.iss'],
    ist: ['file.ist', 'file.mst'],
    j: ['file.ijs'],
    jal: ['file.jal', 'file.JAL'],
    jam: ['file.jpl', 'file.jpr', 'JAM-file.file', 'JAM.file', 'Prl-file.file', 'Prl.file'],
    janet: ['file.janet'],
    java: ['file.java', 'file.jav', 'file.jsh'],
    javacc: ['file.jj', 'file.jjt'],
    javascript: ['file.js', 'file.jsm', 'file.javascript', 'file.es', 'file.mjs', 'file.cjs', '.node_repl_history', '.bun_repl_history', 'deno_history.txt'],
    'javascript.glimmer': ['file.gjs'],
    javascriptreact: ['file.jsx'],
    jess: ['file.clp'],
    jgraph: ['file.jgr'],
    jinja: ['file.jinja'],
    jjdescription: ['file.jjdescription'],
    jovial: ['file.jov', 'file.j73', 'file.jovial'],
    jproperties: ['file.properties', 'file.properties_xx', 'file.properties_xx_xx', 'some.properties_xx_xx_file', 'org.eclipse.xyz.prefs'],
    jq: ['file.jq'],
    json: ['file.json', 'file.jsonp', 'file.json-patch', 'file.geojson', 'file.webmanifest', 'Pipfile.lock', 'file.ipynb', 'file.jupyterlab-settings', 'file.cps',
    '.prettierrc', '.firebaserc', '.stylelintrc', '.lintstagedrc', 'file.slnf', 'file.sublime-project', 'file.sublime-settings', 'file.sublime-workspace',
    'file.bd', 'file.bda', 'file.xci', 'flake.lock', 'pack.mcmeta', 'deno.lock', '.swcrc', 'composer.lock', 'symfony.lock'],
    json5: ['file.json5'],
    jsonc: ['file.jsonc', '.babelrc', '.eslintrc', '.jsfmtrc', '.jshintrc', '.jscsrc', '.vsconfig', '.hintrc', '.swrc', 'jsconfig.json', 'tsconfig.json', 'tsconfig.test.json', 'tsconfig-test.json', '.luaurc', 'bun.lock', expand("$HOME/.config/VSCodium/User/settings.json"), '/home/user/.config/waybar/config' ],
    jsonl: ['file.jsonl'],
    jsonnet: ['file.jsonnet', 'file.libsonnet'],
    jsp: ['file.jsp'],
    julia: ['file.jl'],
    just: ['justfile', 'Justfile', '.justfile', 'config.just'],
    karel: ['file.kl', 'file.KL'],
    kconfig: ['Kconfig', 'Kconfig.debug', 'Kconfig.file', 'Config.in', 'Config.in.host'],
    kdl: ['file.kdl'],
    kerml: ['file.kerml'],
    kitty: ['kitty.conf', '~/.config/kitty/colorscheme.conf'],
    kivy: ['file.kv'],
    kix: ['file.kix'],
    koka: ['file.kk'],
    kos: ['file.kos'],
    kotlin: ['file.kt', 'file.ktm', 'file.kts'],
    krl: ['file.sub', 'file.Sub', 'file.SUB'],
    kscript: ['file.ks'],
    kwt: ['file.k'],
    lace: ['file.ace', 'file.ACE'],
    lalrpop: ['file.lalrpop'],
    latte: ['file.latte', 'file.lte'],
    ld: ['file.ld', 'any/usr/lib/aarch64-xilinx-linux/ldscripts/aarch64elf32b.x'],
    ldapconf: ['ldap.conf', '.ldaprc', 'ldaprc'],
    ldif: ['file.ldif'],
    lean: ['file.lean'],
    ledger: ['file.ldg', 'file.ledger', 'file.journal'],
    leex: ['file.xrl'],
    leo: ['file.leo'],
    less: ['file.less'],
    lex: ['file.lex', 'file.l', 'file.lxx', 'file.l++'],
    lf: ['lfrc'],
    lftp: ['lftp.conf', '.lftprc', 'anylftp/rc', 'lftp/rc', 'some-lftp/rc'],
    lhaskell: ['file.lhs'],
    libao: ['/etc/libao.conf', '/.libao', 'any/.libao', 'any/etc/libao.conf'],
    lidris2: ['file.lidr'],
    lifelines: ['file.ll'],
    lilo: ['lilo.conf', 'lilo.conf-file'],
    lilypond: ['file.ly', 'file.ily'],
    limits: ['/etc/limits', '/etc/anylimits.conf', '/etc/anylimits.d/file.conf', '/etc/limits.conf', '/etc/limits.d/file.conf', '/etc/some-limits.conf', '/etc/some-limits.d/file.conf', 'any/etc/limits', 'any/etc/limits.conf', 'any/etc/limits.d/file.conf', 'any/etc/some-limits.conf', 'any/etc/some-limits.d/file.conf'],
    liquid: ['file.liquid'],
    liquidsoap: ['file.liq'],
    lisp: ['file.lsp', 'file.lisp', 'file.asd', 'file.el', '.emacs', '.sawfishrc', 'sbclrc', '.sbclrc'],
    lite: ['file.lite', 'file.lt'],
    litestep: ['/LiteStep/any/file.rc', 'any/LiteStep/any/file.rc'],
    livebook: ['file.livemd'],
#    log: ['file.log', 'file_log', 'file.LOG', 'file_LOG'],
    logcheck: ['/etc/logcheck/file.d-some/file', '/etc/logcheck/file.d/file', 'any/etc/logcheck/file.d-some/file', 'any/etc/logcheck/file.d/file'],
    loginaccess: ['/etc/login.access', 'any/etc/login.access'],
    logindefs: ['/etc/login.defs', 'any/etc/login.defs'],
    logtalk: ['file.lgt'],
    lotos: ['file.lot', 'file.lotos'],
    lout: ['file.lou', 'file.lout'],
    lpc: ['file.lpc', 'file.ulpc'],
    lsl: ['file.lsl'],
    lss: ['file.lss'],
    lua: ['file.lua', 'file.tlu', 'file.rockspec', 'file.nse', '.lua_history', '.luacheckrc', '.busted', 'rock_manifest', 'config.ld'],
    luau: ['file.luau'],
    lynx: ['lynx.cfg'],
    lyrics: ['file.lrc'],
    m17ndb: ['any/m17n/file.ali', 'any/m17n/file.cs', 'any/m17n/file.dir', 'any/m17n/file.flt', 'any/m17n/file.fst', 'any/m17n/file.lnm', 'any/m17n/file.mic', 'any/m17n/file.mim', 'any/m17n/file.tbl',
             'any/.m17n.d/file.ali', 'any/.m17n.d/file.cs', 'any/.m17n.d/file.dir', 'any/.m17n.d/file.flt', 'any/.m17n.d/file.fst', 'any/.m17n.d/file.lnm', 'any/.m17n.d/file.mic', 'any/.m17n.d/file.mim', 'any/.m17n.d/file.tbl',
             'any/m17n-db/file.ali', 'any/m17n-db/file.cs', 'any/m17n-db/file.dir', 'any/m17n-db/FLT/file.flt', 'any/m17n-db/file.fst', 'any/m17n-db/LANGDATA/file.lnm', 'any/m17n-db/file.mic', 'any/m17n-db/MIM/file.mim', 'any/m17n-db/file.tbl'],
    m3build: ['m3makefile', 'm3overrides'],
    m3quake: ['file.quake', 'cm3.cfg'],
    m4: ['.m4_history'],
    mail: ['snd.123', '.letter', '.letter.123', '.followup', '.article', '.article.123', 'pico.123', 'mutt-xx-xxx', 'muttng-xx-xxx', 'ae123.txt', 'file.eml', 'reportbug-file'],
    mailaliases: ['/etc/mail/aliases', '/etc/aliases', 'any/etc/aliases', 'any/etc/mail/aliases'],
    mailcap: ['.mailcap', 'mailcap'],
    make: ['file.mk', 'file.mak', 'makefile', 'Makefile', 'makefile-file', 'Makefile-file', 'some-makefile', 'some-Makefile', 'Kbuild'],
    mallard: ['file.page'],
    man: ['file.man'],
    manconf: ['/etc/man.conf', 'man.config', 'any/etc/man.conf'],
    maple: ['file.mv', 'file.mpl', 'file.mws'],
    markdown: ['file.markdown', 'file.mdown', 'file.mkd', 'file.mkdn', 'file.mdwn', 'file.md'],
    masm: ['file.masm'],
    mason: ['file.mason', 'file.mhtml'],
    master: ['file.mas', 'file.master'],
    matlab: ['file.m'],
    maxima: ['file.demo', 'file.dmt', 'file.dm1', 'file.dm2', 'file.dm3',
                'file.wxm', 'maxima-init.mac'],
    mbsync: ['.mbsyncrc', 'file.mbsyncrc', 'isyncrc'],
    mediawiki: ['file.mw',  'file.wiki'],
    mel: ['file.mel'],
    mermaid: ['file.mmd', 'file.mmdc', 'file.mermaid'],
    meson: ['meson.build', 'meson.options', 'meson_options.txt'],
    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'],
    mlir: ['file.mlir'],
    mma: ['file.nb', 'file.wl'],
    mmp: ['file.mmp'],
    modconf: ['/etc/modules.conf', '/etc/modules', '/etc/conf.modules', '/etc/modprobe.file', 'any/etc/conf.modules', 'any/etc/modprobe.file', 'any/etc/modules', 'any/etc/modules.conf'],
    modula3: ['file.m3', 'file.mg', 'file.i3', 'file.ig', 'file.lm3'],
    mojo: ['file.mojo', 'file.🔥'],
    monk: ['file.isc', 'file.monk', 'file.ssc', 'file.tsc'],
    moo: ['file.moo'],
    moonscript: ['file.moon'],
    move: ['file.move'],
    mp: ['file.mp', 'file.mpxl', 'file.mpiv', 'file.mpvi'],
    mplayerconf: ['mplayer.conf', '/.mplayer/config', 'any/.mplayer/config'],
    mrxvtrc: ['mrxvtrc', '.mrxvtrc'],
    msidl: ['file.odl', 'file.mof'],
    msmtp: ['.msmtprc'],
    msql: ['file.msql'],
    mss: ['file.mss'],
    mupad: ['file.mu'],
    mush: ['file.mush'],
    mustache: ['file.mustache'],
    muttrc: ['Muttngrc', 'Muttrc', '.muttngrc', '.muttngrc-file', '.muttrc',
             '.muttrc-file', '/.mutt/muttngrc', '/.mutt/muttngrc-file',
             '/.mutt/muttrc', '/.mutt/muttrc-file', '/.muttng/muttngrc',
             '/.muttng/muttngrc-file', '/.muttng/muttrc',
             '/.muttng/muttrc-file', '/etc/Muttrc.d/file',
             '/etc/Muttrc.d/file.rc', 'Muttngrc-file', 'Muttrc-file',
             'any/.mutt/muttngrc', 'any/.mutt/muttngrc-file',
             'any/.mutt/muttrc', 'any/.mutt/muttrc-file',
             'any/.muttng/muttngrc', 'any/.muttng/muttngrc-file',
             'any/.muttng/muttrc', 'any/.muttng/muttrc-file',
             'any/etc/Muttrc.d/file', 'muttngrc', 'muttngrc-file', 'muttrc',
             'muttrc-file'],
    mysql: ['file.mysql', '.mysql_history'],
    n1ql: ['file.n1ql', 'file.nql'],
    named: ['namedfile.conf', 'rndcfile.conf', 'named-file.conf', 'named.conf', 'rndc-file.conf', 'rndc-file.key', 'rndc.conf', 'rndc.key'],
    nanorc: ['/etc/nanorc', 'file.nanorc', 'any/etc/nanorc'],
    nasm: ['file.nasm'],
    natural: ['file.NSA', 'file.NSC', 'file.NSG', 'file.NSL', 'file.NSM', 'file.NSN', 'file.NSP', 'file.NSS'],
    ncf: ['file.ncf'],
    neomuttlog: ['/home/user/.neomuttdebug1'],
    neomuttrc: ['Neomuttrc', '.neomuttrc', '.neomuttrc-file', '/.neomutt/neomuttrc', '/.neomutt/neomuttrc-file', 'Neomuttrc', 'Neomuttrc-file', 'any/.neomutt/neomuttrc', 'any/.neomutt/neomuttrc-file', 'neomuttrc', 'neomuttrc-file' ],
    neon: ['file.neon'],
    netlinx: ['file.axs', 'file.axi'],
    netrc: ['.netrc'],
    nginx: ['file.nginx', 'nginxfile.conf', 'filenginx.conf', 'any/etc/nginx/file', 'any/usr/local/nginx/conf/file', 'any/nginx/file.conf'],
    nickel: ['file.ncl'],
    nim: ['file.nim', 'file.nims', 'file.nimble'],
    ninja: ['file.ninja'],
    nix: ['file.nix'],
    norg: ['file.norg'],
    nq: ['file.nq'],
    nqc: ['file.nqc'],
    nroff: ['file.tr', 'file.nr', 'file.roff', 'file.tmac', 'tmac.file'],
    nsis: ['file.nsi', 'file.nsh'],
    ntriples: ['file.nt'],
    nu: ['file.nu'],
    numbat: ['file.nbt'],
    obj: ['file.obj'],
    objdump: ['file.objdump', 'file.cppobjdump'],
    objectscript_routine: ['file.rtn'],
    obse: ['file.obl', 'file.obse', 'file.oblivion', 'file.obscript'],
    ocaml: ['file.ml', 'file.mli', 'file.mll', 'file.mly', '.ocamlinit', 'file.mlt', 'file.mlp', 'file.mlip', 'file.mli.cppo', 'file.ml.cppo'],
    occam: ['file.occ'],
    octave: ['octaverc', '.octaverc', 'octave.conf', 'any/.local/share/octave/history'],
    odin: ['file.odin'],
    omnimark: ['file.xom', 'file.xin'],
    ondir: ['.ondirrc'],
    opam: ['opam', 'file.opam', 'file.opam.template', 'opam.locked', 'file.opam.locked'],
    openroad: ['file.or'],
    openscad: ['file.scad'],
    openvpn: ['file.ovpn', '/etc/openvpn/client/client.conf', '/usr/share/openvpn/examples/server.conf'],
    opl: ['file.OPL', 'file.OPl', 'file.OpL', 'file.Opl', 'file.oPL', 'file.oPl', 'file.opL', 'file.opl'],
    ora: ['file.ora'],
    org: ['file.org', 'file.org_archive'],
    pamconf: ['/etc/pam.conf', '/etc/pam.d/file', 'any/etc/pam.conf', 'any/etc/pam.d/file'],
    pamenv: ['/etc/security/pam_env.conf', '/home/user/.pam_environment', '.pam_environment', 'pam_env.conf'],
    pandoc: ['file.pandoc', 'file.pdk', 'file.pd', 'file.pdc'],
    papp: ['file.papp', 'file.pxml', 'file.pxsl'],
    pascal: ['file.pas', 'file.dpr', 'file.lpr'],
    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', '/etc/passwd', '/etc/passwd-', '/etc/passwd.edit', '/etc/shadow', '/etc/shadow-', '/etc/shadow.edit', '/var/backups/passwd.bak', '/var/backups/shadow.bak'],
    pbtxt: ['file.txtpb', 'file.textproto', 'file.textpb', 'file.pbtxt', 'file.aconfig'],
    pccts: ['file.g'],
    pcmk: ['file.pcmk'],
    pdf: ['file.pdf'],
    pem: ['file.pem', 'file.cer', 'file.crt', 'file.csr'],
    perl: ['file.plx', 'file.al', 'file.psgi', 'gitolite.rc', '.gitolite.rc', 'example.gitolite.rc', '.latexmkrc', 'latexmkrc'],
    pf: ['pf.conf'],
    pfmain: ['main.cf', 'main.cf.proto'],
    php: ['file.php', 'file.php9', 'file.phtml', 'file.ctp', 'file.phpt', 'file.theme'],
    pike: ['file.pike', 'file.pmod'],
    pilrc: ['file.rcp'],
    pine: ['.pinerc', 'pinerc', '.pinercex', 'pinercex'],
    pinfo: ['/etc/pinforc', '/.pinforc', 'any/.pinforc', 'any/etc/pinforc'],
    pkl: ['file.pkl', 'file.pcf', 'any/PklProject'],
    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'],
    poefilter: ['file.filter'],
    poke: ['file.pk'],
    pony: ['file.pony'],
    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'],
    pq: ['file.pq'],
    prisma: ['file.prisma'],
    privoxy: ['file.action'],
    proc: ['file.pc'],
    procmail: ['.procmail', '.procmailrc'],
    prolog: ['file.pdb'],
    promela: ['file.pml'],
    proto: ['file.proto'],
    protocols: ['/etc/protocols', 'any/etc/protocols'],
    prql: ['file.prql'],
    ps1: ['file.ps1', 'file.psd1', 'file.psm1', 'file.pssc'],
    ps1xml: ['file.ps1xml'],
    psf: ['file.psf'],
    psl: ['file.psl'],
    ptx: ['file.ptx'],
    pug: ['file.pug'],
    puppet: ['file.pp'],
    purescript: ['file.purs'],
    pymanifest: ['MANIFEST.in'],
    pyret: ['file.arr'],
    pyrex: ['file.pyx', 'file.pxd', 'file.pxi', 'file.pyx+'],
    python: ['file.py', 'file.pyw', '.pythonstartup', '.pythonrc', '.python_history', '.jline-jython.history', 'file.ptl', 'file.pyi', 'SConstruct', 'file.ipy'],
    ql: ['file.ql', 'file.qll'],
    qml: ['file.qml', 'file.qbs'],
    qmldir: ['qmldir'],
    quake: ['anybaseq2/file.cfg', 'anyid1/file.cfg', 'quake3/file.cfg', 'baseq2/file.cfg', 'id1/file.cfg', 'quake1/file.cfg', 'some-baseq2/file.cfg', 'some-id1/file.cfg', 'some-quake1/file.cfg'],
    quarto: ['file.qmd'],
    quickbms: ['file.bms'],
    r: ['file.r', '.Rhistory', '.Rprofile', 'Rprofile', 'Rprofile.site'],
    racket: ['file.rkt', 'file.rktd', 'file.rktl'],
    radiance: ['file.rad', 'file.mat'],
    raku: ['file.pm6', 'file.p6', 'file.t6', 'file.pod6', 'file.raku', 'file.rakumod', 'file.rakudoc', 'file.rakutest'],
    raml: ['file.raml'],
    rapid: ['file.sysx', 'file.Sysx', 'file.SysX', 'file.SYSx', 'file.SYSX', 'file.modx', 'file.Modx', 'file.ModX', 'file.MODx', 'file.MODX'],
    rasi: ['file.rasi', 'file.rasinc'],
    ratpoison: ['.ratpoisonrc', 'ratpoisonrc'],
    razor: ['file.cshtml', 'file.razor'],
    rbs: ['file.rbs'],
    rc: ['file.rc', 'file.rch'],
    rcs: ['file,v'],
    readline: ['.inputrc', 'inputrc'],
    rego: ['file.rego'],
    remind: ['.reminders', 'file.remind', 'file.rem', '.reminders-file'],
    requirements: ['file.pip', 'requirements.txt', 'dev-requirements.txt', 'requirements-dev.txt', 'constraints.txt', 'requirements.in', 'requirements/dev.txt', 'requires/dev.txt'],
    rescript: ['file.res', 'file.resi'],
    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'],
    rhelp: ['file.rd'],
    rib: ['file.rib'],
    rmd: ['file.rmd', 'file.smd'],
    rnc: ['file.rnc'],
    rng: ['file.rng'],
    rnoweb: ['file.rnw', 'file.snw'],
    robot: ['file.robot', 'file.resource'],
    robots: ['robots.txt'],
    roc: ['file.roc'],
    ron: ['file.ron'],
    routeros: ['file.rsc'],
    rpcgen: ['file.x'],
    rpgle: ['file.rpgle', 'file.rpgleinc'],
    rpl: ['file.rpl'],
    rrst: ['file.rrst', 'file.srst'],
    rst: ['file.rst'],
    rtf: ['file.rtf'],
    ruby: ['.irbrc', 'irbrc', '.irb_history', 'irb_history', 'file.rb', 'file.rbi', 'file.rbw', 'file.gemspec', 'file.ru', 'Gemfile', 'file.builder',
           'file.rxml', 'file.rjs', 'file.rant', 'file.rake', 'rakefile', 'Rakefile', 'rantfile', 'Rantfile', 'rakefile-file', 'Rakefile-file',
           'Puppetfile', 'Vagrantfile', 'Brewfile'],
    rust: ['file.rs'],
    sage: ['file.sage'],
    salt: ['file.sls'],
    samba: ['smb.conf'],
    sas: ['file.sas'],
    sass: ['file.sass'],
    sbt: ['file.sbt'],
    scala: ['file.scala', 'file.mill'],
    scheme: ['file.scm', 'file.ss', 'file.sld', 'file.stsg', 'any/local/share/supertux2/config', '.lips_repl_history', '.guile'],
    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', '/etc/sensors.d/file', 'any/etc/sensors.conf', 'any/etc/sensors3.conf', 'any/etc/sensors.d/file'],
    services: ['/etc/services', 'any/etc/services'],
    setserial: ['/etc/serial.conf', 'any/etc/serial.conf'],
    sexplib: ['file.sexp'],
    sh: ['.bashrc', '.bash_profile', '.bash-profile', '.bash_logout', '.bash-logout', '.bash_aliases', '.bash-aliases', '.bash_history', '.bash-history',
         '/tmp/bash-fc-3Ozjlw', '/tmp/bash-fc.3Ozjlw', 'PKGBUILD', 'file.bash', '/usr/share/doc/bash-completion/filter.sh',
         '/etc/udev/cdsymlinks.conf', 'any/etc/udev/cdsymlinks.conf', 'file.bats', '.ash_history', 'any/etc/neofetch/config.conf', '.xprofile',
         'user-dirs.defaults', 'user-dirs.dirs', 'makepkg.conf', '.makepkg.conf', 'file.mdd', 'file.cygport', '.envrc', '.envrc.file', 'file.envrc', 'devscripts.conf',
         '.devscripts', 'file.lo', 'file.la', 'file.lai'],
    shaderslang: ['file.slang'],
    sieve: ['file.siv', 'file.sieve'],
    sil: ['file.sil'],
    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'],
    skhd: ['.skhdrc', 'skhdrc'],
    skill: ['file.il', 'file.ils', 'file.cdf'],
    slang: ['file.sl'],
    slice: ['file.ice'],
    slint: ['file.slint'],
    slpconf: ['/etc/slp.conf', 'any/etc/slp.conf'],
    slpreg: ['/etc/slp.reg', 'any/etc/slp.reg'],
    slpspi: ['/etc/slp.spi', 'any/etc/slp.spi'],
    slrnrc: ['.slrnrc'],
    slrnsc: ['file.score'],
    sm: ['sendmail.cf'],
    smali: ['file.smali'],
    smarty: ['file.tpl'],
    smcl: ['file.hlp', 'file.ihlp', 'file.smcl'],
    smith: ['file.smt', 'file.smith'],
    smithy: ['file.smithy'],
    sml: ['file.sml'],
    snakemake: ['file.smk', 'Snakefile'],
    snobol4: ['file.sno', 'file.spt'],
    solidity: ['file.sol'],
    solution: ['file.sln'],
    soy: ['file.soy'],
    spajson: ['any/pipewire/file.conf', 'any/pipewire/file.conf.d/other.conf',
              'any/wireplumber/file.conf', 'any/wireplumber/file.conf.d/other.conf'],
    sparql: ['file.rq', 'file.sparql'],
    spec: ['file.spec'],
    spice: ['file.sp', 'file.spice'],
    spup: ['file.speedup', 'file.spdata', 'file.spd'],
    spyce: ['file.spy', 'file.spi'],
    sql: ['file.tyb', 'file.tyc', 'file.pkb', 'file.pks', '.sqlite_history'],
    sqlj: ['file.sqlj'],
    sqr: ['file.sqr', 'file.sqi'],
    squid: ['squid.conf'],
    squirrel: ['file.nut'],
    srec: ['file.s19', 'file.s28', 'file.s37', 'file.mot', 'file.srec'],
    srt: ['file.srt'],
    ssa: ['file.ass', 'file.ssa'],
    sshconfig: ['ssh_config', '/.ssh/config', '/etc/ssh/ssh_config.d/file.conf', 'any/etc/ssh/ssh_config.d/file.conf', 'any/.ssh/config', 'any/.ssh/file.conf'],
    sshdconfig: ['sshd_config', '/etc/ssh/sshd_config.d/file.conf', 'any/etc/ssh/sshd_config.d/file.conf'],
    st: ['file.st'],
    starlark: ['file.ipd', 'file.sky', 'file.star', 'file.starlark'],
    stata: ['file.ado', 'file.do', 'file.imata', 'file.mata'],
    stp: ['file.stp'],
    stylus: ['a.styl', 'file.stylus'],
    sudoers: ['any/etc/sudoers', 'sudoers.tmp', '/etc/sudoers', 'any/etc/sudoers.d/file'],
    supercollider: ['file.quark'],
    surface: ['file.sface'],
    svelte: ['file.svelte'],
    svg: ['file.svg'],
    svn: ['svn-commitfile.tmp', 'svn-commit-file.tmp', 'svn-commit.tmp'],
    sway: ['file.sw'],
    swayconfig: ['/home/user/.sway/config', '/home/user/.config/sway/config', '/etc/sway/config', '/etc/xdg/sway/config',
                 '/home/user/sway/config.d/50-user.conf' ],
    swift: ['file.swift', 'file.swiftinterface'],
    swiftgyb: ['file.swift.gyb'],
    swig: ['file.swg', 'file.swig'],
    sysctl: ['/etc/sysctl.conf', '/etc/sysctl.d/file.conf', 'any/etc/sysctl.conf', 'any/etc/sysctl.d/file.conf'],
    sysml: ['file.sysml'],
    systemd: ['any/systemd/file.automount', 'any/systemd/file.dnssd',
              'any/systemd/file.link', 'any/systemd/file.mount',
              'any/systemd/file.netdev', 'any/systemd/file.network',
              'any/systemd/file.nspawn', 'any/systemd/file.path',
              'any/systemd/file.service', 'any/systemd/file.slice',
              'any/systemd/file.socket', 'any/systemd/file.swap',
              'any/systemd/file.target', 'any/systemd/file.timer',
              '/etc/systemd/some.conf.d/file.conf',
              '/etc/systemd/system/some.d/file.conf',
              '/etc/systemd/system/some.d/.#file',
              '/etc/systemd/system/.#otherfile',
              '/home/user/.config/systemd/user/some.d/mine.conf',
              '/home/user/.config/systemd/user/some.d/.#file',
              '/home/user/.config/systemd/user/.#otherfile',
              '/.config/systemd/user/.#', '/.config/systemd/user/.#-file',
              '/.config/systemd/user/file.d/.#',
              '/.config/systemd/user/file.d/.#-file',
              '/.config/systemd/user/file.d/file.conf',
              '/etc/systemd/file.conf.d/file.conf', '/etc/systemd/system/.#',
              '/etc/systemd/system/.#-file', '/etc/systemd/system/file.d/.#',
              '/etc/systemd/system/file.d/.#-file',
              '/etc/systemd/system/file.d/file.conf',
              '/systemd/file.automount', '/systemd/file.dnssd',
              '/systemd/file.link', '/systemd/file.mount',
              '/systemd/file.netdev', '/systemd/file.network',
              '/systemd/file.nspawn', '/systemd/file.path',
              '/systemd/file.service', '/systemd/file.slice',
              '/systemd/file.socket', '/systemd/file.swap',
              '/systemd/file.target', '/systemd/file.timer',
              'any/.config/systemd/user/.#',
              'any/.config/systemd/user/.#-file',
              'any/.config/systemd/user/file.d/.#',
              'any/.config/systemd/user/file.d/.#-file',
              'any/.config/systemd/user/file.d/file.conf',
              'any/etc/systemd/file.conf.d/file.conf',
              'any/etc/systemd/system/.#', 'any/etc/systemd/system/.#-file',
              'any/etc/systemd/system/file.d/.#',
              'any/etc/systemd/system/file.d/.#-file',
              'any/etc/systemd/system/file.d/file.conf',
              'any/containers/systemd/file.artifact',
              'any/containers/systemd/file.build',
              'any/containers/systemd/file.container',
              'any/containers/systemd/file.image',
              'any/containers/systemd/file.kube',
              'any/containers/systemd/file.network',
              'any/containers/systemd/file.pod',
              'any/containers/systemd/file.volume',
              'any/containers/systemd/users/any/file.artifact',
              'any/containers/systemd/users/any/file.build',
              'any/containers/systemd/users/any/file.container',
              'any/containers/systemd/users/any/file.image',
              'any/containers/systemd/users/any/file.kube',
              'any/containers/systemd/users/any/file.network',
              'any/containers/systemd/users/any/file.pod',
              'any/containers/systemd/users/any/file.volume',
              'any/containers/systemd/users/file.artifact',
              'any/containers/systemd/users/file.build',
              'any/containers/systemd/users/file.container',
              'any/containers/systemd/users/file.image',
              'any/containers/systemd/users/file.kube',
              'any/containers/systemd/users/file.network',
              'any/containers/systemd/users/file.pod',
              'any/containers/systemd/users/file.volume',
              'any/containers/systemd/some.d/file.conf',
              'etc/containers/systemd/users/1111/some.d/file.conf',
              'etc/containers/systemd/users/some.d/file.conf'],
    systemverilog: ['file.sv', 'file.svh'],
    tablegen: ['file.td'],
    tags: ['tags'],
    tak: ['file.tak'],
    tal: ['file.tal'],
    taskdata: ['pending.data', 'completed.data', 'undo.data'],
    taskedit: ['file.task'],
    tcl: ['file.tcl', 'file.tm', 'file.tk', 'file.itcl', 'file.itk', 'file.jacl', '.tclshrc', 'tclsh.rc', '.wishrc', '.tclsh-history',
          '.xsctcmdhistory', '.xsdbcmdhistory', 'vivado.jou', 'vivado.log'],
    teal: ['file.tl'],
    templ: ['file.templ'],
    template: ['file.tmpl'],
    tera: ['file.tera', 'file.toml.tera', 'file.html.tera', 'file.css.tera'],
    teraterm: ['file.ttl'],
    terminfo: ['file.ti'],
    'terraform-vars': ['file.tfvars'],
    tex: ['file.latex', 'file.sty', 'file.dtx', 'file.ltx', 'file.bbl', 'any/.texlive/texmf-config/tex/latex/file/file.cfg', 'file.pgf', 'file.nlo', 'file.nls', 'file.thm', 'file.eps_tex', 'file.pygtex', 'file.pygstyle', 'file.clo', 'file.aux', 'file.brf', 'file.ind', 'file.lof', 'file.loe', 'file.nav', 'file.vrb', 'file.ins', 'file.tikz', 'file.bbx', 'file.cbx', 'file.beamer', 'file.pdf_tex'],
    texinfo: ['file.texinfo', 'file.texi', 'file.txi'],
    texmf: ['texmf.cnf'],
    text: ['file.text', 'file.txt', 'README', 'LICENSE', 'COPYING', 'AUTHORS', '/usr/share/doc/bash-completion/AUTHORS', '/etc/apt/apt.conf.d/README', '/etc/Muttrc.d/README'],
    tf: ['file.tf', '.tfrc', 'tfrc'],
    thrift: ['file.thrift'],
    tidy: ['.tidyrc', 'tidyrc', 'tidy.conf'],
    tiger: ['file.tig'],
    tilde: ['file.t.html'],
    tiltfile: ['Tiltfile', 'tiltfile', 'file.Tiltfile', 'file.tiltfile', 'Tiltfile.debian'],
    tla: ['file.tla'],
    tli: ['file.tli'],
    tmux: ['tmuxfile.conf', '.tmuxfile.conf', '.tmux-file.conf', '.tmux.conf', 'tmux-file.conf', 'tmux.conf', 'tmux.conf.local'],
    toml: ['file.toml', 'uv.lock', 'Gopkg.lock', 'Pipfile', '/home/user/.cargo/config', '.black',
           'any/containers/containers.conf', 'any/containers/containers.conf.d/file.conf',
           'any/containers/containers.conf.modules/file.conf', 'any/containers/containers.conf.modules/any/file.conf',
           'any/containers/registries.conf', 'any/containers/registries.conf.d/file.conf',
           'any/containers/storage.conf'],
    tpp: ['file.tpp'],
    trace32: ['file.cmm', 'file.cmmt', 'file.t32'],
    treetop: ['file.treetop'],
    trig: ['file.trig'],
    trustees: ['trustees.conf'],
    tsalt: ['file.slt'],
    tsscl: ['file.tsscl'],
    tssgm: ['file.tssgm'],
    tssop: ['file.tssop'],
    tsv: ['file.tsv'],
    twig: ['file.twig'],
    typescript: ['file.mts', 'file.cts', '.ts_node_repl_history'],
    'typescript.glimmer': ['file.gts'],
    typescriptreact: ['file.tsx'],
    typespec: ['file.tsp'],
    uc: ['file.uc'],
    udevconf: ['/etc/udev/udev.conf', 'any/etc/udev/udev.conf'],
    udevperm: ['/etc/udev/permissions.d/file.permissions', 'any/etc/udev/permissions.d/file.permissions'],
    udevrules: ['/etc/udev/rules.d/file.rules', '/usr/lib/udev/rules.d/file.rules', '/lib/udev/rules.d/file.rules'],
    uil: ['file.uit', 'file.uil'],
    ungrammar: ['file.ungram'],
    unison: ['file.u', 'file.uu'],
    updatedb: ['/etc/updatedb.conf', 'any/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', 'any/.config/upstart/file.conf', 'any/.config/upstart/file.override', 'any/.init/file.conf', 'any/.init/file.override', 'any/etc/init/file.conf', 'any/etc/init/file.override', 'any/usr/share/upstart/file.conf', 'any/usr/share/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'],
    urlshortcut: ['file.url'],
    usd: ['file.usda', 'file.usd'],
    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'],
    v: ['file.vsh', 'file.vv'],
    vala: ['file.vala'],
    vb: ['file.sba', 'file.vb', 'file.vbs', 'file.dsm', 'file.ctl', 'file.dob', 'file.dsr'],
    vdf: ['file.vdf'],
    vdmpp: ['file.vpp', 'file.vdmpp'],
    vdmrt: ['file.vdmrt'],
    vdmsl: ['file.vdm', 'file.vdmsl'],
    vento: ['file.vto'],
    vera: ['file.vr', 'file.vri', 'file.vrh'],
    verilogams: ['file.va', 'file.vams'],
    vgrindefs: ['vgrindefs'],
    vhdl: ['file.hdl', 'file.vhd', 'file.vhdl', 'file.vbe', 'file.vst', 'file.vhdl_123', 'file.vho', 'some.vhdl_1', 'some.vhdl_1-file'],
    vhs: ['file.tape'],
    vim: ['file.vim', '.exrc', '_exrc', 'some-vimrc', 'some-vimrc-file', 'vimrc', 'vimrc-file', '.netrwhist'],
    viminfo: ['.viminfo', '_viminfo'],
    vmasm: ['file.mar'],
    voscm: ['file.cm'],
    vrml: ['file.wrl'],
    vroom: ['file.vroom'],
    vue: ['file.vue'],
    wat: ['file.wat', 'file.wast'],
    wdl: ['file.wdl'],
    webmacro: ['file.wm'],
    wget: ['.wgetrc', 'wgetrc'],
    wget2: ['.wget2rc', 'wget2rc'],
    wgsl: ['file.wgsl'],
    winbatch: ['file.wbt'],
    wit: ['file.wit'],
    wks: ['file.wks', 'file.wks.in', 'file.wks.inc'],
    wml: ['file.wml'],
    wsh: ['file.wsf', 'file.wsc'],
    wsml: ['file.wsml'],
    wvdial: ['wvdial.conf', '.wvdialrc'],
    xcompose: ['.XCompose', 'Compose'],
    xdefaults: ['.Xdefaults', '.Xpdefaults', '.Xresources', 'xdm-config', 'file.ad', '/Xresources/file', '/app-defaults/file', 'Xresources', 'Xresources-file', 'any/Xresources/file', 'any/app-defaults/file'],
    xf86conf: ['xorg.conf', 'xorg.conf-4'],
    xhtml: ['file.xhtml', 'file.xht'],
    xinetd: ['/etc/xinetd.conf', '/etc/xinetd.d/file', 'any/etc/xinetd.conf', 'any/etc/xinetd.d/file'],
    xkb: ['any/xkb/compat/pc', 'any/xkb/geometry/pc', 'any/xkb/keycodes/evdev', 'any/xkb/symbols/pc', 'any/xkb/types/pc',
          'any/.xkb/compat/pc', 'any/.xkb/geometry/pc', 'any/.xkb/keycodes/evdev', 'any/.xkb/symbols/pc', 'any/.xkb/types/pc'],
    xmath: ['file.msc', 'file.msf'],
    xml: ['/etc/blkid.tab', '/etc/blkid.tab.old', 'file.xmi', 'file.csproj', 'file.csproj.user', 'file.fsproj', 'file.fsproj.user', 'file.vbproj', 'file.vbproj.user', 'file.ui',
          'file.tpm', '/etc/xdg/menus/file.menu', 'fglrxrc', 'file.xlf', 'file.xliff', 'file.xul', 'file.wsdl', 'file.wpl', 'any/etc/blkid.tab', 'any/etc/blkid.tab.old',
          'any/etc/xdg/menus/file.menu', 'file.atom', 'file.rss', 'file.cdxml', 'file.psc1', 'file.mpd', 'fonts.conf', 'file.xcu', 'file.xlb', 'file.xlc', 'file.xba', 'file.xpr',
          'file.xpfm', 'file.spfm', 'file.bxml', 'file.mmi', 'file.slnx', 'Directory.Packages.props', 'Directory.Build.targets', 'Directory.Build.props'],
    xmodmap: ['anyXmodmap', 'Xmodmap', 'some-Xmodmap', 'some-xmodmap', 'some-xmodmap-file', 'xmodmap', 'xmodmap-file'],
    xpm: ['file.xpm'],
    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', 'file.eyaml', 'file.kyaml', 'file.kyml', 'any/.bundle/config', '.clangd', '.clang-format', '.clang-tidy', 'file.mplstyle', 'matplotlibrc', 'yarn.lock',
           '/home/user/.kube/config', '/home/user/.kube/kuberc', '.condarc', 'condarc', '.mambarc', 'mambarc', 'pixi.lock', 'buf.lock'],
    yang: ['file.yang'],
    yara: ['file.yara', 'file.yar'],
    yuck: ['file.yuck'],
    z8a: ['file.z8a'],
    zathurarc: ['zathurarc'],
    zig: ['file.zig', 'build.zig.zon'],
    ziggy: ['file.ziggy'],
    ziggy_schema: ['file.ziggy-schema'],
    zimbu: ['file.zu'],
    zimbutempl: ['file.zut'],
    zserio: ['file.zs'],
    zsh: ['.zprofile', '/etc/zprofile', '.zfbfmarks', 'file.zsh', 'file.zsh-theme', 'file.zunit',
          '.zcompdump', '.zlogin', '.zlogout', '.zshenv', '.zshrc', '.zsh_history',
          '.zcompdump-file', '.zlog', '.zlog-file', '.zsh', '.zsh-file',
          'any/etc/zprofile', 'zlog', 'zlog-file', 'zsh', 'zsh-file'],
    }
enddef

def s:GetFilenameCaseChecks(): dict<list<string>>
  return {
    modula2: ['file.DEF'],
    bzl: ['file.BUILD', 'BUILD', 'BUCK'],
  }
enddef

def s:CheckItems(checks: dict<list<string>>)
  set noswapfile

  for [ft, names] in items(checks)
    for i in range(0, len(names) - 1)
      if isdirectory(fnameescape(names[i]))
        continue
      endif
      new
      try
        exe 'edit ' .. fnameescape(names[i])
      catch
	assert_report('cannot edit "' .. names[i] .. '": ' .. v:exception)
      endtry
      if &filetype == '' && &readonly
	# File exists but not able to edit it (permission denied)
      else
        var expected = ft == 'none' ? '' : ft
	assert_equal(expected, &filetype, 'with file name: ' .. names[i])
      endif
      bwipe!
    endfor
  endfor

  set swapfile&
enddef

def Test_filetype_detection()
  SetupConfigHome()
  if !empty(s:saveConfigHome)
    defer setenv("XDG_CONFIG_HOME", s:saveConfigHome)
  endif
  mkdir(GetConfigHome(), 'R')

  filetype on
  CheckItems(s:GetFilenameChecks())
  if has('fname_case')
    CheckItems(s:GetFilenameCaseChecks())
  endif
  filetype off
enddef

" Content lines that should not result in filetype detection
def s:GetFalsePositiveChecks(): dict<list<list<string>>>
  return {
      '': [['test execve("/usr/bin/pstree", ["pstree"], 0x7ff0 /* 63 vars */) = 0']],
      }
enddef

" Filetypes detected from the file contents by scripts.vim
def s:GetScriptChecks(): dict<list<list<string>>>
  return {
    virata: [['% Virata'],
            ['', '% Virata'],
            ['', '', '% Virata'],
            ['', '', '', '% Virata'],
            ['', '', '', '', '% Virata']],
    strace: [['execve("/usr/bin/pstree", ["pstree"], 0x7ff0 /* 63 vars */) = 0'],
            ['15:17:47 execve("/usr/bin/pstree", ["pstree"], ... "_=/usr/bin/strace"]) = 0'],
            ['__libc_start_main and something']],
    clojure: [['#!/path/clojure']],
    scala:  [['#!/path/scala']],
    sh:     [['#!/path/sh'],
            ['#!/path/bash'],
            ['#!/path/bash2'],
            ['#!/path/dash'],
            ['#!/path/ksh'],
            ['#!/path/ksh93']],
    csh:    [['#!/path/csh']],
    tcsh:   [['#!/path/tcsh']],
    zsh:    [['#!/path/zsh']],
    tcl:    [['#!/path/tclsh'],
            ['#!/path/wish'],
            ['#!/path/expectk'],
            ['#!/path/itclsh'],
            ['#!/path/itkwish']],
    expect: [['#!/path/expect']],
    execline: [['#!/sbin/execlineb -S0'], ['#!/usr/bin/execlineb']],
    gnuplot: [['#!/path/gnuplot']],
    just:   [['#!/path/just']],
    make:   [['#!/path/make']],
    nix:    [['#!/path/nix-shell']],
    pike:   [['#!/path/pike'],
            ['#!/path/pike0'],
            ['#!/path/pike9']],
    lua:    [['#!/path/lua']],
    raku:   [['#!/path/raku']],
    perl:   [['#!/path/perl']],
    php:    [['#!/path/php']],
    python: [['#!/path/python'],
            ['#!/path/python2'],
            ['#!/path/python3'],
            ['#!/usr/bin/env -S uv run --script']],
    groovy: [['#!/path/groovy']],
    ruby:   [['#!/path/ruby']],
    javascript: [['#!/path/node'],
            ['#!/path/js'],
            ['#!/path/nodejs'],
            ['#!/path/rhino']],
    bc:     [['#!/path/bc']],
    sed:    [['#!/path/sed'],
            ['#n'],
            ['#n comment']],
    ocaml:  [['#!/path/ocaml']],
    awk:    [['#!/path/awk'],
            ['#!/path/gawk']],
    wml:    [['#!/path/wml']],
    scheme: [['#!/path/scheme'],
            ['#!/path/guile']],
    cfengine: [['#!/path/cfengine']],
    erlang: [['#!/path/escript']],
    haskell: [['#!/path/haskell']],
    cpp:    [['// Standard iostream objects -*- C++ -*-'],
            ['// -*- C++ -*-']],
    yaml:   [['%YAML 1.2']],
    pascal: [['#!/path/instantfpc']],
    fennel: [['#!/path/fennel']],
    routeros: [['#!/path/rsc']],
    fish:   [['#!/path/fish']],
    forth:  [['#!/path/gforth']],
    icon:   [['#!/path/icon']],
    crystal: [['#!/path/crystal']],
    rexx:   [['#!/path/rexx'],
            ['#!/path/regina']],
    janet:  [['#!/path/janet']],
    dart:   [['#!/path/dart']],
    bpftrace:  [['#!/path/bpftrace']],
    vim:    [['#!/path/vim']],
  }
enddef

" Various forms of "env" optional arguments.
def s:GetScriptEnvChecks(): dict<list<list<string>>>
  return {
    perl: [['#!/usr/bin/env VAR=val perl']],
    scala: [['#!/usr/bin/env VAR=val VVAR=vval scala']],
    awk: [['#!/usr/bin/env --split-string=VAR= awk -vFS="," -f']],
    ruby: [['#!/usr/bin/env --split-string=ruby --debug']],
    sed: [['#!/usr/bin/env -iS sed -f']],
    zsh: [['#!/usr/bin/env -iS VAR=val zsh -l']],
    execline: [['#!/usr/bin/env execlineb']],
    scheme: [['#!/usr/bin/env VAR=val --ignore-environment scheme']],
    sh: [['#!/usr/bin/env -S --ignore-environment VAR= sh -u']],
    python: [['#!/usr/bin/env -S -i VAR=val python -B -u']],
    csh: [['#!/usr/bin/env -S VAR= csh -f']],
    wml: [['#!/usr/bin/env VAR=val --split-string wml']],
    nix: [['#!/usr/bin/env nix-shell']],
  }
enddef

def s:Run_script_detection(test_dict: dict<list<list<string>>>)
  filetype on
  for [ft, files] in items(test_dict)
    for file in files
      writefile(file, 'Xtest', 'D')
      split Xtest
      assert_equal(ft, &filetype, 'for text: ' .. string(file))
      bwipe!
    endfor
  endfor
  filetype off
enddef

def Test_script_detection()
  Run_script_detection(GetFalsePositiveChecks())
  Run_script_detection(GetScriptChecks())
  Run_script_detection(GetScriptEnvChecks())
enddef

func Test_setfiletype_completion()
  call feedkeys(":setfiletype java\<C-A>\<C-B>\"\<CR>", 'tx')
  call assert_equal('"setfiletype java javacc javascript javascriptreact', @:)
endfunc

" Test for ':filetype detect' command for a buffer without a file
func Test_emptybuf_ftdetect()
  new
  call setline(1, '#!/bin/sh')
  call assert_equal('', &filetype)
  filetype detect
  call assert_equal('sh', &filetype)
  " close the swapfile
  bw!
endfunc

" Test for ':filetype indent on' and ':filetype indent off' commands
func Test_filetype_indent_off()
  new Xtest.vim
  filetype indent on
  call assert_equal(1, g:did_indent_on)
  call assert_equal(['filetype detection:ON  plugin:OFF  indent:ON'],
        \ execute('filetype')->split("\n"))
  filetype indent off
  call assert_equal(0, exists('g:did_indent_on'))
  call assert_equal(['filetype detection:ON  plugin:OFF  indent:OFF'],
        \ execute('filetype')->split("\n"))
  close
endfunc

func Test_undo_ftplugin_on_buffer_reuse()
  filetype on

  new
  let b:undo_ftplugin = ":let g:var='exists'"
  let g:bufnr = bufnr('%')
  " no changes done to the buffer, so the buffer will be re-used
  e $VIMRUNTIME/defaults.vim
  call assert_equal(g:bufnr, bufnr('%'))
  call assert_equal('exists', get(g:, 'var', 'fail'))
  unlet! g:bufnr g:var

  " try to wipe the buffer
  enew
  bw defaults.vim
  let b:undo_ftplugin = ':bw'
  call assert_fails(':e $VIMRUNTIME/defaults.vim', 'E937:')

  " try to split the window
  enew
  bw defaults.vim
  let b:undo_ftplugin = ':sp $VIMRUNTIME/defaults.vim'
  call assert_fails(':e $VIMRUNTIME/defaults.vim', 'E242:')

  bwipe!
  filetype off
endfunc

"""""""""""""""""""""""""""""""""""""""""""""""""
" Tests for specific extensions and filetypes.
" Keep sorted.
"""""""""""""""""""""""""""""""""""""""""""""""""

" Since dist#ft#FTm4() looks around for configure.ac
" the test needs to isolate itself in a fresh temporary project tree,
" so that no configure.ac from another test (or from the repo root)
" accidentally influences detection.
func Test_autoconf_file()
  filetype on
  " Make a fresh sandbox far away from any configure.ac
  let save_cwd = getcwd()
  call mkdir('Xproj_autoconf/a/b', 'p')
  execute 'lcd Xproj_autoconf/a/b'

  try
    call writefile(['AC_CHECK_HEADERS([stdio.h])'], 'foo.m4', 'D')
    split foo.m4
    call assert_equal('config', &filetype)
    bwipe!

    call writefile(['AS_IF([true], [:])'], 'bar.m4', 'D')
    split bar.m4
    call assert_equal('config', &filetype)
    bwipe!

    call writefile(['AC_INIT([foo],[1.0])'], 'configure.ac')
    call mkdir('m4', 'p')
    call writefile([], 'm4/empty.m4', 'D')
    split m4/empty.m4
    call assert_equal('config', &filetype)
    bwipe!
  finally
    call delete('m4', 'rf')
    call delete('configure.ac')
    execute 'lcd' fnameescape(save_cwd)
    call delete('Xproj_autoconf', 'rf')
    filetype off
  endtry
endfunc

func Test_bas_file()
  filetype on

  call writefile(['looks like BASIC'], 'Xfile.bas', 'D')
  split Xfile.bas
  call assert_equal('basic', &filetype)
  bwipe!

  " Test dist#ft#FTbas()

  let g:filetype_bas = 'freebasic'
  split Xfile.bas
  call assert_equal('freebasic', &filetype)
  bwipe!
  unlet g:filetype_bas

  " FreeBASIC

  call writefile(["/' FreeBASIC multiline comment '/"], 'Xfile.bas')
  split Xfile.bas
  call assert_equal('freebasic', &filetype)
  bwipe!

  call writefile(['#define TESTING'], 'Xfile.bas')
  split Xfile.bas
  call assert_equal('freebasic', &filetype)
  bwipe!

  call writefile(['option byval'], 'Xfile.bas')
  split Xfile.bas
  call assert_equal('freebasic', &filetype)
  bwipe!

  call writefile(['extern "C"'], 'Xfile.bas')
  split Xfile.bas
  call assert_equal('freebasic', &filetype)
  bwipe!

  " QB64

  call writefile(['$LET TESTING = 1'], 'Xfile.bas')
  split Xfile.bas
  call assert_equal('qb64', &filetype)
  bwipe!

  call writefile(['OPTION _EXPLICIT'], 'Xfile.bas')
  split Xfile.bas
  call assert_equal('qb64', &filetype)
  bwipe!

  " Visual Basic

  call writefile(['Attribute VB_NAME = "Testing"', 'Enum Foo', 'End Enum'], 'Xfile.bas')
  split Xfile.bas
  call assert_equal('vb', &filetype)
  bwipe!

  filetype off
endfunc

" Test dist#ft#FTcfg()
func Test_cfg_file()
  filetype on

  " *.cfg defaults to cfg
  call writefile(['looks like cfg'], 'cfgfile.cfg', 'D')
  split cfgfile.cfg
  call assert_equal('cfg', &filetype)

  let g:filetype_cfg = 'other'
  edit
  call assert_equal('other', &filetype)
  bwipe!
  unlet g:filetype_cfg

  " RAPID cfg
  for i in ['EIO', 'MMC', 'MOC', 'PROC', 'SIO', 'SYS']
    for ext in ['cfg', 'Cfg', 'CFG']
      call writefile([i .. ':CFG'], 'cfgfile.' .. ext)
      execute "split cfgfile." .. ext
      call assert_equal('rapid', &filetype)
      bwipe!
      call delete('cfgfile.' .. ext)
    endfor
  endfor

  " clean up
  filetype off
endfunc

func Test_cl_file()
  filetype on

  call writefile(['/*', ' * Xfile.cl', ' */', 'int f() {}'], 'Xfile.cl')
  split Xfile.cl
  call assert_equal('opencl', &filetype)
  bwipe!

  call writefile(['()'], 'Xfile.cl')
  split Xfile.cl
  call assert_equal('lisp', &filetype)
  bwipe!

  filetype off
endfunc

func Test_d_file()
  filetype on

  call writefile(['looks like D'], 'Xfile.d', 'D')
  split Xfile.d
  call assert_equal('d', &filetype)
  bwipe!

  call writefile(['#!/some/bin/dtrace'], 'Xfile.d')
  split Xfile.d
  call assert_equal('dtrace', &filetype)
  bwipe!

  call writefile(['#pragma  D  option'], 'Xfile.d')
  split Xfile.d
  call assert_equal('dtrace', &filetype)
  bwipe!

  call writefile([':some:thing:'], 'Xfile.d')
  split Xfile.d
  call assert_equal('dtrace', &filetype)
  bwipe!

  call writefile(['module this', '#pragma  D  option'], 'Xfile.d')
  split Xfile.d
  call assert_equal('d', &filetype)
  bwipe!

  call writefile(['import that', '#pragma  D  option'], 'Xfile.d')
  split Xfile.d
  call assert_equal('d', &filetype)
  bwipe!

  " clean up
  filetype off
endfunc

func Test_dat_file()
  filetype on

  " KRL header start with "&WORD", but is not always present.
  call writefile(['&ACCESS'], 'datfile.dat')
  split datfile.dat
  call assert_equal('krl', &filetype)
  bwipe!
  call delete('datfile.dat')

  " KRL defdat with leading spaces, for KRL file extension is not case
  " sensitive.
  call writefile(['  DEFDAT datfile'], 'datfile.Dat')
  split datfile.Dat
  call assert_equal('krl', &filetype)
  bwipe!
  call delete('datfile.Dat')

  " KRL defdat with embedded spaces, file starts with empty line(s).
  call writefile(['', 'defdat  datfile  public'], 'datfile.DAT')
  split datfile.DAT
  call assert_equal('krl', &filetype)
  bwipe!

  " User may overrule file inspection
  let g:filetype_dat = 'dat'
  split datfile.DAT
  call assert_equal('dat', &filetype)
  bwipe!
  call delete('datfile.DAT')
  unlet g:filetype_dat

  filetype off
endfunc

func Test_dep3patch_file()
  filetype on

  call assert_true(mkdir('debian/patches', 'pR'))

  " series files are not patches
  call writefile(['Description: some awesome patch'], 'debian/patches/series')
  split debian/patches/series
  call assert_notequal('dep3patch', &filetype)
  bwipe!

  " diff/patch files without the right headers should still show up as ft=diff
  call writefile([], 'debian/patches/foo.diff')
  split debian/patches/foo.diff
  call assert_equal('diff', &filetype)
  bwipe!

  " Files with the right headers are detected as dep3patch, even if they don't
  " have a diff/patch extension
  call writefile(['Subject: dep3patches'], 'debian/patches/bar')
  split debian/patches/bar
  call assert_equal('dep3patch', &filetype)
  bwipe!

  " Files in sub-directories are detected
  call assert_true(mkdir('debian/patches/s390x', 'p'))
  call writefile(['Subject: dep3patches'], 'debian/patches/s390x/bar')
  split debian/patches/s390x/bar
  call assert_equal('dep3patch', &filetype)
  bwipe!

  " The detection stops when seeing the "header end" marker
  call writefile(['---', 'Origin: the cloud'], 'debian/patches/baz')
  split debian/patches/baz
  call assert_notequal('dep3patch', &filetype)
  bwipe!
endfunc

func Test_dsl_file()
  filetype on

  call writefile(['  <!doctype dsssl-spec ['], 'dslfile.dsl', 'D')
  split dslfile.dsl
  call assert_equal('dsl', &filetype)
  bwipe!

  call writefile(['workspace {'], 'dslfile.dsl')
  split dslfile.dsl
  call assert_equal('structurizr', &filetype)
  bwipe!

  filetype off
endfunc

func Test_ex_file()
  filetype on

  call writefile(['arbitrary content'], 'Xfile.ex', 'D')
  split Xfile.ex
  call assert_equal('elixir', &filetype)
  bwipe!
  let g:filetype_euphoria = 'euphoria4'
  split Xfile.ex
  call assert_equal('euphoria4', &filetype)
  bwipe!
  unlet g:filetype_euphoria

  call writefile(['-- filetype euphoria comment'], 'Xfile.ex')
  split Xfile.ex
  call assert_equal('euphoria3', &filetype)
  bwipe!

  call writefile(['--filetype euphoria comment'], 'Xfile.ex')
  split Xfile.ex
  call assert_equal('euphoria3', &filetype)
  bwipe!

  call writefile(['ifdef '], 'Xfile.ex')
  split Xfile.ex
  call assert_equal('euphoria3', &filetype)
  bwipe!

  call writefile(['include '], 'Xfile.ex')
  split Xfile.ex
  call assert_equal('euphoria3', &filetype)
  bwipe!

  filetype off
endfunc

func Test_f_file()
  filetype on

  call writefile(['looks like Fortran'], 'Xfile.f', 'D')
  split Xfile.f
  call assert_equal('fortran', &filetype)
  bwipe!

  let g:filetype_f = 'forth'
  split Xfile.f
  call assert_equal('forth', &filetype)
  bwipe!
  unlet g:filetype_f

  " Test dist#ft#FTf()

  " Forth

  call writefile(['( Forth inline comment )'], 'Xfile.f')
  split Xfile.f
  call assert_equal('forth', &filetype)
  bwipe!

  call writefile(['\ Forth line comment'], 'Xfile.f')
  split Xfile.f
  call assert_equal('forth', &filetype)
  bwipe!

  call writefile([': squared ( n -- n^2 )', 'dup * ;'], 'Xfile.f')
  split Xfile.f
  call assert_equal('forth', &filetype)
  bwipe!

  " SwiftForth

  call writefile(['{ ================', 'Header comment', '================ }'], 'Xfile.f')
  split Xfile.f
  call assert_equal('forth', &filetype)
  bwipe!

  call writefile(['OPTIONAL Maybe Descriptive text'], 'Xfile.f')
  split Xfile.f
  call assert_equal('forth', &filetype)
  bwipe!

  filetype off
endfunc

func Test_foam_file()
  filetype on
  call assert_true(mkdir('0', 'pR'))
  call assert_true(mkdir('0.orig', 'pR'))

  call writefile(['FoamFile {', '    object something;'], 'Xfile1Dict', 'D')
  split Xfile1Dict
  call assert_equal('foam', &filetype)
  bwipe!

  call writefile(['FoamFile {', '    object something;'], 'Xfile1Dict.something', 'D')
  split Xfile1Dict.something
  call assert_equal('foam', &filetype)
  bwipe!

  call writefile(['FoamFile {', '    object something;'], 'XfileProperties', 'D')
  split XfileProperties
  call assert_equal('foam', &filetype)
  bwipe!

  call writefile(['FoamFile {', '    object something;'], 'XfileProperties.something', 'D')
  split XfileProperties.something
  call assert_equal('foam', &filetype)
  bwipe!

  call writefile(['FoamFile {', '    object something;'], 'XfileProperties')
  split XfileProperties
  call assert_equal('foam', &filetype)
  bwipe!

  call writefile(['FoamFile {', '    object something;'], 'XfileProperties.something')
  split XfileProperties.something
  call assert_equal('foam', &filetype)
  bwipe!

  call writefile(['FoamFile {', '    object something;'], '0/Xfile')
  split 0/Xfile
  call assert_equal('foam', &filetype)
  bwipe!

  call writefile(['FoamFile {', '    object something;'], '0.orig/Xfile')
  split 0.orig/Xfile
  call assert_equal('foam', &filetype)
  bwipe!

  filetype off
endfunc

func Test_frm_file()
  filetype on

  call writefile(['looks like FORM'], 'Xfile.frm', 'D')
  split Xfile.frm
  call assert_equal('form', &filetype)
  bwipe!

  " Test dist#ft#FTfrm()

  let g:filetype_frm = 'form'
  split Xfile.frm
  call assert_equal('form', &filetype)
  bwipe!
  unlet g:filetype_frm

  " Visual Basic

  call writefile(['VERSION 5.00', 'Begin VB.Form Form1'], 'Xfile.frm')
  split Xfile.frm
  call assert_equal('vb', &filetype)
  bwipe!

  filetype off
endfunc

func Test_fs_file()
  filetype on

  call writefile(['looks like F#'], 'Xfile.fs', 'D')
  split Xfile.fs
  call assert_equal('fsharp', &filetype)
  bwipe!

  let g:filetype_fs = 'forth'
  split Xfile.fs
  call assert_equal('forth', &filetype)
  bwipe!
  unlet g:filetype_fs

  " Test dist#ft#FTfs()

  " Forth

  call writefile(['( Forth inline comment )'], 'Xfile.fs')
  split Xfile.fs
  call assert_equal('forth', &filetype)
  bwipe!

  call writefile(['\ Forth line comment'], 'Xfile.fs')
  split Xfile.fs
  call assert_equal('forth', &filetype)
  bwipe!

  call writefile([': squared ( n -- n^2 )', 'dup * ;'], 'Xfile.fs')
  split Xfile.fs
  call assert_equal('forth', &filetype)
  bwipe!

  " SwiftForth

  call writefile(['{ ================', 'Header comment', '================ }'], 'Xfile.fs')
  split Xfile.fs
  call assert_equal('forth', &filetype)
  bwipe!

  call writefile(['OPTIONAL Maybe Descriptive text'], 'Xfile.fs')
  split Xfile.fs
  call assert_equal('forth', &filetype)
  bwipe!

  filetype off
endfunc

func Test_git_file()
  filetype on

  call assert_true(mkdir('Xrepo.git', 'pR'))

  call writefile([], 'Xrepo.git/HEAD')
  split Xrepo.git/HEAD
  call assert_equal('', &filetype)
  bwipe!

  call writefile(['0000000000000000000000000000000000000000'], 'Xrepo.git/HEAD')
  split Xrepo.git/HEAD
  call assert_equal('git', &filetype)
  bwipe!

  call writefile(['0000000000000000000000000000000000000000000000000000000000000000'], 'Xrepo.git/HEAD')
  split Xrepo.git/HEAD
  call assert_equal('git', &filetype)
  bwipe!

  call writefile(['ref: refs/heads/master'], 'Xrepo.git/HEAD')
  split Xrepo.git/HEAD
  call assert_equal('git', &filetype)
  bwipe!

  filetype off
endfunc

func Test_grc_file()
  filetype on

  call writefile(['<?xml version="1.0"?>', '<block>', '</block>'], 'Xfile.grc')
  split Xfile.grc
  call assert_equal('xml', &filetype)
  bwipe!

  call writefile(['metadata:', '  file_format: 1'], 'Xfile.grc')
  split Xfile.grc
  call assert_equal('yaml', &filetype)
  bwipe!

  filetype off
endfunc

func Test_haredoc_file()
  filetype on

  call assert_true(mkdir('foo/bar', 'pR'))

  call writefile([], 'README', 'D')
  split README
  call assert_notequal('haredoc', &filetype)
  bwipe!

  let g:filetype_haredoc = 3
  call writefile([], 'foo/bar/bar.ha', 'D')
  split README
  call assert_equal('haredoc', &filetype)
  bwipe!

  let g:filetype_haredoc = 2
  split README
  call assert_notequal('haredoc', &filetype)
  bwipe!

  call writefile([], 'foo/foo.ha', 'D')
  split README
  call assert_equal('haredoc', &filetype)
  bwipe!

  let g:filetype_haredoc = 1
  split README
  call assert_notequal('haredoc', &filetype)
  bwipe!

  call writefile([], 'main.ha', 'D')
  split README
  call assert_equal('haredoc', &filetype)
  bwipe!

  let g:filetype_haredoc = 0
  split README
  call assert_notequal('haredoc', &filetype)
  bwipe!
  unlet g:filetype_haredoc

  filetype off
endfunc

func Test_help_file()
  func! s:Check_help_with_iskeyword(fname)
    exe 'split' a:fname
    call assert_equal('help', &filetype)
    bwipe!
    set iskeyword+=:
    exe 'split' a:fname
    call assert_equal('help', &filetype)
    bwipe!
    set iskeyword&
  endfunc

  set nomodeline
  filetype on
  call assert_true(mkdir('doc', 'pR'))

  call writefile(['some text', 'vim:ft=help:'], 'doc/help.txt', 'D')
  call s:Check_help_with_iskeyword('doc/help.txt')

  call writefile(['some text', 'Copyright: |manual-copyright| vim:ft=help:'],
        \ 'doc/help1.txt', 'D')
  call s:Check_help_with_iskeyword('doc/help1.txt')

  call writefile(['some text', 'vim:noet:ft=help:'], 'doc/help2.txt', 'D')
  call s:Check_help_with_iskeyword('doc/help2.txt')

  call writefile(['some text', 'vim: noet ft=help'], 'doc/help3.txt', 'D')
  call s:Check_help_with_iskeyword('doc/help3.txt')

  call writefile(['some text', 'vim: ft=help noet'], 'doc/help4.txt', 'D')
  call s:Check_help_with_iskeyword('doc/help4.txt')

  call writefile(['some text'], 'doc/nothelp.txt', 'D')
  split doc/nothelp.txt
  call assert_notequal('help', &filetype)
  bwipe!

  call writefile(['some text', '`vim:ft=help`'], 'doc/nothelp1.txt', 'D')
  split doc/nothelp1.txt
  call assert_notequal('help', &filetype)
  bwipe!

  filetype off
  set modeline&
endfunc

func Test_hook_file()
  filetype on

  call writefile(['[Trigger]', 'this is pacman config'], 'Xfile.hook', 'D')
  split Xfile.hook
  call assert_equal('confini', &filetype)
  bwipe!

  call writefile(['not pacman'], 'Xfile.hook')
  split Xfile.hook
  call assert_notequal('confini', &filetype)
  bwipe!

  filetype off
endfunc

func Test_html_file()
  filetype on

  " HTML Angular
  let content = ['@for (item of items; track item.name) {', '  <li> {{ item.name }}</li>', '} @empty {', '  <li> There are no items.</li>', '}']
  call writefile(content, 'Xfile.html', 'D')
  split Xfile.html
  call assert_equal('htmlangular', &filetype)
  bwipe!

  " Django Template
  let content = ['{% if foobar %}',
      \ '    <ul>',
      \ '    {% for question in list %}',
      \ '        <li><a href="/polls/{{ question.id }}/">{{ question.question_text }}</a></li>',
      \ '    {% endfor %}',
      \ '    </ul>',
      \ '{% else %}',
      \ '    <p>No polls are available.</p>',
      \ '{% endif %}']
  call writefile(content, 'Xfile.html', 'D')
  split Xfile.html
  call assert_equal('htmldjango', &filetype)
  bwipe!

  " Super html layout
  let content = ['<extend template="base.shtml">',
        \ '<title id="title" var="$page.title"></title>',
        \ '<head id="head"></head>',
        \ '<div id="content">',
        \ '</div>']
  call writefile(content, 'Xfile.shtml', 'D')
  split Xfile.shtml
  call assert_equal('superhtml', &filetype)
  bwipe!

  " Super html template
  let content = ['<!DOCTYPE html>',
        \ '<html>',
        \ '  <head id="head">',
        \ '    <title id="title">',
        \ '      <super>',
        \ '      suffix',
        \ '    </title>',
        \ '    <super>',
        \ '  </head>',
        \ '  <body>',
        \ '    <div id="content">',
        \ '      <super>',
        \ '    </div>',
        \ '  </body>',
        \ '</html>']
  call writefile(content, 'Xfile.shtml', 'D')
  split Xfile.shtml
  call assert_equal('superhtml', &filetype)
  bwipe!

  " regular HTML
  let content = ['<!DOCTYPE html>', '<html>', '    <head>Foobar</head>', '    <body>Content', '    </body>', '</html>']
  call writefile(content, 'Xfile.html', 'D')
  split Xfile.html
  call assert_equal('html', &filetype)
  bwipe!

  filetype off
endfunc

func Test_m_file()
  filetype on

  call writefile(['looks like Matlab'], 'Xfile.m', 'D')
  split Xfile.m
  call assert_equal('matlab', &filetype)
  bwipe!

  let g:filetype_m = 'octave'
  split Xfile.m
  call assert_equal('octave', &filetype)
  bwipe!
  unlet g:filetype_m

  " Test dist#ft#FTm()

  " Objective-C

  call writefile(['// Objective-C line comment'], 'Xfile.m')
  split Xfile.m
  call assert_equal('objc', &filetype)
  bwipe!

  call writefile(['/* Objective-C block comment */'], 'Xfile.m')
  split Xfile.m
  call assert_equal('objc', &filetype)
  bwipe!

  call writefile(['#import "test.m"'], 'Xfile.m')
  split Xfile.m
  call assert_equal('objc', &filetype)
  bwipe!

  call writefile(['#include <header.h>'], 'Xfile.m')
  split Xfile.m
  call assert_equal('objc', &filetype)
  bwipe!

  call writefile(['#define FORTY_TWO'], 'Xfile.m')
  split Xfile.m
  call assert_equal('objc', &filetype)
  bwipe!

  " Octave

  call writefile(['# Octave line comment'], 'Xfile.m')
  split Xfile.m
  call assert_equal('octave', &filetype)
  bwipe!

  call writefile(['%!test "Octave test"'], 'Xfile.m')
  split Xfile.m
  call assert_equal('octave', &filetype)
  bwipe!

  call writefile(['unwind_protect'], 'Xfile.m')
  split Xfile.m
  call assert_equal('octave', &filetype)
  bwipe!

  call writefile(['try; 42; end_try_catch'], 'Xfile.m')
  split Xfile.m
  call assert_equal('octave', &filetype)
  bwipe!

  " Mathematica

  call writefile(['(* Mathematica comment'], 'Xfile.m')
  split Xfile.m
  call assert_equal('mma', &filetype)
  bwipe!

  " MATLAB

  call writefile(['% MATLAB line comment'], 'Xfile.m')
  split Xfile.m
  call assert_equal('matlab', &filetype)
  bwipe!

  " Murphi

  call writefile(['-- Murphi comment'], 'Xfile.m')
  split Xfile.m
  call assert_equal('murphi', &filetype)
  bwipe!

  call writefile(['/* Murphi block comment */', 'Type'], 'Xfile.m')
  split Xfile.m
  call assert_equal('murphi', &filetype)
  bwipe!

  call writefile(['Type'], 'Xfile.m')
  split Xfile.m
  call assert_equal('murphi', &filetype)
  bwipe!

  filetype off
endfunc

" Since dist#ft#FTm4() looks around for configure.ac
" the test needs to isolate itself in a fresh temporary project tree,
" so that no configure.ac from another test (or from the repo root)
" accidentally influences detection.
func Test_m4_file()
  filetype on
  let save_cwd = getcwd()

  " Make a fresh sandbox far away from any configure.ac
  call mkdir('Xsandbox/level1/level2', 'p')
  execute 'lcd Xsandbox/level1/level2'

  try
    call writefile(["define(`FOO', `bar')", "FOO"], 'plain.m4', 'D')
    split plain.m4
    call assert_equal('m4', &filetype)
    bwipe!
  finally
    execute 'lcd' fnameescape(save_cwd)
    call delete('Xsandbox', 'rf')
    filetype off
  endtry
endfunc

func Test_mod_file()
  filetype on

  " *.mod defaults to Modsim III
  call writefile(['locks like Modsim III'], 'Xfile.mod', 'D')
  split Xfile.mod
  call assert_equal('modsim3', &filetype)
  bwipe!

  " Users preference set by g:filetype_mod
  let g:filetype_mod = 'lprolog'
  split Xfile.mod
  call assert_equal('lprolog', &filetype)
  unlet g:filetype_mod
  bwipe!

  " LambdaProlog module
  call writefile(['module lpromod.'], 'Xfile.mod')
  split Xfile.mod
  call assert_equal('lprolog', &filetype)
  bwipe!

  " LambdaProlog with comment and empty lines prior module
  call writefile(['', '% with',  '% comment', '', 'module lpromod.'], 'Xfile.mod')
  split Xfile.mod
  call assert_equal('lprolog', &filetype)
  bwipe!

  " RAPID header start with a line containing only "%%%",
  " but is not always present.
  call writefile(['%%%'], 'Xfile.mod')
  split Xfile.mod
  call assert_equal('rapid', &filetype)
  bwipe!

  " RAPID supports umlauts in module names, leading spaces,
  " the .mod extension is not case sensitive.
  call writefile(['  module ÜmlautModule'], 'Xfile.Mod', 'D')
  split Xfile.Mod
  call assert_equal('rapid', &filetype)
  bwipe!

  " RAPID is not case sensitive, embedded spaces, sysmodule,
  " file starts with empty line(s).
  call writefile(['', 'MODULE  rapidmödüle  (SYSMODULE,NOSTEPIN)'], 'Xfile.MOD', 'D')
  split Xfile.MOD
  call assert_equal('rapid', &filetype)
  bwipe!

  " Modula-2 MODULE not start of line
  call writefile(['IMPLEMENTATION MODULE Module2Mod;'], 'Xfile.mod')
  split Xfile.mod
  call assert_equal('modula2', &filetype)
  call assert_equal('pim', b:modula2.dialect)
  bwipe!

  " Modula-2 with comment and empty lines prior MODULE
  call writefile(['', '(* with',  ' comment *)', '', 'MODULE Module2Mod;'], 'Xfile.mod')
  split Xfile.mod
  call assert_equal('modula2', &filetype)
  call assert_equal('pim', b:modula2.dialect)
  bwipe!

  " Modula-2 program MODULE with priority (and uppercase extension)
  call writefile(['MODULE Module2Mod [42];'], 'Xfile.MOD')
  split Xfile.MOD
  call assert_equal('modula2', &filetype)
  call assert_equal('pim', b:modula2.dialect)
  bwipe!

  " Modula-2 implementation MODULE with priority (and uppercase extension)
  call writefile(['IMPLEMENTATION MODULE Module2Mod [42];'], 'Xfile.MOD')
  split Xfile.MOD
  call assert_equal('modula2', &filetype)
  call assert_equal('pim', b:modula2.dialect)
  bwipe!

  " go.mod
  call writefile(['module example.com/M'], 'go.mod', 'D')
  split go.mod
  call assert_equal('gomod', &filetype)
  bwipe!

  call writefile(['module M'], 'go.mod')
  split go.mod
  call assert_equal('gomod', &filetype)
  bwipe!

  filetype off
endfunc

func Test_patch_file()
  filetype on

  call writefile([], 'Xfile.patch', 'D')
  split Xfile.patch
  call assert_equal('diff', &filetype)
  bwipe!

  call writefile(['From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001'], 'Xfile.patch')
  split Xfile.patch
  call assert_equal('gitsendemail', &filetype)
  bwipe!

  call writefile(['From 0000000000000000000000000000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001'], 'Xfile.patch')
  split Xfile.patch
  call assert_equal('gitsendemail', &filetype)
  bwipe!

  filetype off
endfunc

func Test_perl_file()
  filetype on

  " only tests one case, should do more
  let lines =<< trim END

    use a
  END
  call writefile(lines, "Xfile.t", 'D')
  split Xfile.t
  call assert_equal('perl', &filetype)
  bwipe

  filetype off
endfunc

func Test_pp_file()
  filetype on

  call writefile(['looks like puppet'], 'Xfile.pp', 'D')
  split Xfile.pp
  call assert_equal('puppet', &filetype)
  bwipe!

  let g:filetype_pp = 'pascal'
  split Xfile.pp
  call assert_equal('pascal', &filetype)
  bwipe!
  unlet g:filetype_pp

  " Test dist#ft#FTpp()
  call writefile(['{ pascal comment'], 'Xfile.pp')
  split Xfile.pp
  call assert_equal('pascal', &filetype)
  bwipe!

  call writefile(['procedure pascal'], 'Xfile.pp')
  split Xfile.pp
  call assert_equal('pascal', &filetype)
  bwipe!

  filetype off
endfunc

" Test dist#ft#FTprg()
func Test_prg_file()
  filetype on

  " *.prg defaults to clipper
  call writefile(['looks like clipper'], 'prgfile.prg')
  split prgfile.prg
  call assert_equal('clipper', &filetype)
  bwipe!

  " Users preference set by g:filetype_prg
  let g:filetype_prg = 'eviews'
  split prgfile.prg
  call assert_equal('eviews', &filetype)
  unlet g:filetype_prg
  bwipe!

  " RAPID header start with a line containing only "%%%",
  " but is not always present.
  call writefile(['%%%'], 'prgfile.prg')
  split prgfile.prg
  call assert_equal('rapid', &filetype)
  bwipe!
  call delete('prgfile.prg')

  " RAPID supports umlauts in module names, leading spaces,
  " the .prg extension is not case sensitive.
  call writefile(['  module ÜmlautModule'], 'prgfile.Prg')
  split prgfile.Prg
  call assert_equal('rapid', &filetype)
  bwipe!
  call delete('prgfile.Prg')

  " RAPID is not case sensitive, embedded spaces, sysmodule,
  " file starts with empty line(s).
  call writefile(['', 'MODULE  rapidmödüle  (SYSMODULE,NOSTEPIN)'], 'prgfile.PRG')
  split prgfile.PRG
  call assert_equal('rapid', &filetype)
  bwipe!
  call delete('prgfile.PRG')

  filetype off
endfunc

" Test dist#ft#FTsc()
func Test_sc_file()
  filetype on

  " SC classes are defined with '+ Class {}'
  call writefile(['+ SCNvim {', '*methodArgs {|method|'], 'srcfile.sc')
  split srcfile.sc
  call assert_equal('supercollider', &filetype)
  bwipe!
  call delete('srcfile.sc')

  " Some SC class files start with comment and define methods many lines later
  call writefile(['// Query', '//Method','^this {'], 'srcfile.sc')
  split srcfile.sc
  call assert_equal('supercollider', &filetype)
  bwipe!
  call delete('srcfile.sc')

  " Some SC class files put comments between method declaration after class
  call writefile(['PingPong {', '//comment','*ar { arg'], 'srcfile.sc')
  split srcfile.sc
  call assert_equal('supercollider', &filetype)
  bwipe!
  call delete('srcfile.sc')

  filetype off
endfunc

" Test dist#ft#FTscd()
func Test_scd_file()
  filetype on

  call writefile(['ijq(1)'], 'srcfile.scd', 'D')
  split srcfile.scd
  call assert_equal('scdoc', &filetype)

  bwipe!
  filetype off
endfunc

func Test_src_file()
  filetype on

  " KRL header start with "&WORD", but is not always present.
  call writefile(['&ACCESS'], 'srcfile.src')
  split srcfile.src
  call assert_equal('krl', &filetype)
  bwipe!
  call delete('srcfile.src')

  " KRL def with leading spaces, for KRL file extension is not case sensitive.
  call writefile(['  DEF srcfile()'], 'srcfile.Src')
  split srcfile.Src
  call assert_equal('krl', &filetype)
  bwipe!
  call delete('srcfile.Src')

  " KRL global deffct with embedded spaces, file starts with empty line(s).
  for text in ['global  def  srcfile()', 'global  deffct  srcfile()']
    call writefile(['', text], 'srcfile.SRC')
    split srcfile.SRC
    call assert_equal('krl', &filetype, text)
    bwipe!
  endfor

  " User may overrule file inspection
  let g:filetype_src = 'src'
  split srcfile.SRC
  call assert_equal('src', &filetype)
  bwipe!
  call delete('srcfile.SRC')
  unlet g:filetype_src

  filetype off
endfunc

func Test_sys_file()
  filetype on

  " *.sys defaults to Batch file for MSDOS
  call writefile(['looks like dos batch'], 'sysfile.sys')
  split sysfile.sys
  call assert_equal('bat', &filetype)
  bwipe!

  " Users preference set by g:filetype_sys
  let g:filetype_sys = 'sys'
  split sysfile.sys
  call assert_equal('sys', &filetype)
  unlet g:filetype_sys
  bwipe!

  " RAPID header start with a line containing only "%%%",
  " but is not always present.
  call writefile(['%%%'], 'sysfile.sys')
  split sysfile.sys
  call assert_equal('rapid', &filetype)
  bwipe!
  call delete('sysfile.sys')

  " RAPID supports umlauts in module names, leading spaces,
  " the .sys extension is not case sensitive.
  call writefile(['  module ÜmlautModule'], 'sysfile.Sys')
  split sysfile.Sys
  call assert_equal('rapid', &filetype)
  bwipe!
  call delete('sysfile.Sys')

  " RAPID is not case sensitive, embedded spaces, sysmodule,
  " file starts with empty line(s).
  call writefile(['', 'MODULE  rapidmödüle  (SYSMODULE,NOSTEPIN)'], 'sysfile.SYS')
  split sysfile.SYS
  call assert_equal('rapid', &filetype)
  bwipe!
  call delete('sysfile.SYS')

  filetype off
endfunc

func Test_tex_file()
  filetype on

  call writefile(['%& pdflatex'], 'Xfile.tex')
  split Xfile.tex
  call assert_equal('tex', &filetype)
  bwipe

  call writefile(['\newcommand{\test}{some text}'], 'Xfile.tex')
  split Xfile.tex
  call assert_equal('tex', &filetype)
  bwipe

  " tex_flavor is unset
  call writefile(['%& plain'], 'Xfile.tex')
  split Xfile.tex
  call assert_equal('plaintex', &filetype)
  bwipe

  let g:tex_flavor = 'plain'
  call writefile(['just some text'], 'Xfile.tex')
  split Xfile.tex
  call assert_equal('plaintex', &filetype)
  bwipe

  let lines =<< trim END
      % This is a comment.

      \usemodule[translate]
  END
  call writefile(lines, 'Xfile.tex')
  split Xfile.tex
  call assert_equal('context', &filetype)
  bwipe

  let g:tex_flavor = 'context'
  call writefile(['just some text'], 'Xfile.tex')
  split Xfile.tex
  call assert_equal('context', &filetype)
  bwipe
  unlet g:tex_flavor

  call delete('Xfile.tex')
  filetype off
endfunc

func Test_tf_file()
  filetype on

  call writefile([';;; TF MUD client is super duper cool'], 'Xfile.tf', 'D')
  split Xfile.tf
  call assert_equal('tf', &filetype)
  bwipe!

  call writefile(['provider "azurerm" {'], 'Xfile.tf')
  split Xfile.tf
  call assert_equal('terraform', &filetype)
  bwipe!

  filetype off
endfunc

func Test_tf_file_v2()
  filetype on

  let lines =<< trim END
    ;# Connect to a MUD server
    /server mud.example.com 4000
    ;set verbose on
    /def greet = /echo Hello, $[name()]
    /def hp = /send score
    ;alias n = north
    ;alias s = south
    ;set autolog on
    /def prompt = /echo -p Prompt: %{*}
  END

  call writefile(lines, "Xfile.tf", "D")
  split Xfile.tf
  call assert_equal('tf', &filetype)
  bw!
  let lines =<< trim END
		# This is a comment at the top of the file

		terraform {
			required_version = ">= 1.0"
		}

		provider "aws" {
			region = "us-east-1"
		}

		resource "aws_s3_bucket" "demo" {
			bucket = "example-bucket"
		}
  END
  call writefile(lines, "Xfile.tf", "D")
  split Xfile.tf
  call assert_equal('terraform', &filetype)
  bwipe!

  filetype off
endfunc


func Test_ts_file()
  filetype on

  call writefile(['<?xml version="1.0" encoding="utf-8"?>'], 'Xfile.ts', 'D')
  split Xfile.ts
  call assert_equal('xml', &filetype)
  bwipe!

  call writefile(['// looks like Typescript'], 'Xfile.ts')
  split Xfile.ts
  call assert_equal('typescript', &filetype)
  bwipe!

  filetype off
endfunc

func Test_ttl_file()
  filetype on

  call writefile(['@base <http://example.org/> .'], 'Xfile.ttl', 'D')
  split Xfile.ttl
  call assert_equal('turtle', &filetype)
  bwipe!

  call writefile(['looks like Tera Term Language'], 'Xfile.ttl')
  split Xfile.ttl
  call assert_equal('teraterm', &filetype)
  bwipe!

  filetype off
endfunc

func Test_v_file()
  filetype on

  call writefile(['module tb; // Looks like a Verilog'], 'Xfile.v', 'D')
  split Xfile.v
  call assert_equal('verilog', &filetype)
  bwipe!

  call writefile(['module main'], 'Xfile.v')
  split Xfile.v
  call assert_equal('v', &filetype)
  bwipe!

  call writefile(['Definition x := 10.  (*'], 'Xfile.v')
  split Xfile.v
  call assert_equal('coq', &filetype)
  bwipe!

  filetype off
endfunc

func Test_xpm_file()
  filetype on

  call writefile(['this is XPM2'], 'file.xpm', 'D')
  split file.xpm
  call assert_equal('xpm2', &filetype)
  bwipe!

  filetype off
endfunc

func Test_cls_file()
  filetype on

  call writefile(['looks like Smalltalk'], 'Xfile.cls', 'D')
  split Xfile.cls
  call assert_equal('st', &filetype)
  bwipe!

  " Test dist#ft#FTcls()

  let g:filetype_cls = 'vb'
  split Xfile.cls
  call assert_equal('vb', &filetype)
  bwipe!
  unlet g:filetype_cls

  let g:filetype_cls = 'objectscript'
  split Xfile.cls
  call assert_equal('objectscript', &filetype)
  bwipe!
  unlet g:filetype_cls

  " ObjectScript

  call writefile(['Class User.Person Extends (%Persistent, %Populate)'], 'Xfile.cls')
  split Xfile.cls
  call assert_equal('objectscript', &filetype)
  bwipe!

  call writefile(['Import MyApp.Utils', 'Class User.Person Extends %Persistent'], 'Xfile.cls')
  split Xfile.cls
  call assert_equal('objectscript', &filetype)
  bwipe!

  call writefile(['Include MyMacros', 'Class User.Person Extends %Persistent'], 'Xfile.cls')
  split Xfile.cls
  call assert_equal('objectscript', &filetype)
  bwipe!

  call writefile(['IncludeGenerator MyGen', 'Class User.Person Extends %Persistent'], 'Xfile.cls')
  split Xfile.cls
  call assert_equal('objectscript', &filetype)
  bwipe!

  call writefile(['Import MyApp.Utils', 'Include MyMacros', 'IncludeGenerator MyGen', 'Class User.Person Extends %Persistent'], 'Xfile.cls')
  split Xfile.cls
  call assert_equal('objectscript', &filetype)
  bwipe!

  " TeX

  call writefile(['%'], 'Xfile.cls')
  split Xfile.cls
  call assert_equal('tex', &filetype)
  bwipe!

  call writefile(['\NeedsTeXFormat{LaTeX2e}'], 'Xfile.cls')
  split Xfile.cls
  call assert_equal('tex', &filetype)
  bwipe!

  " Rexx

  call writefile(['#!/usr/bin/rexx'], 'Xfile.cls')
  split Xfile.cls
  call assert_equal('rexx', &filetype)
  bwipe!

  call writefile(['#!/usr/bin/regina'], 'Xfile.cls')
  split Xfile.cls
  call assert_equal('rexx', &filetype)
  bwipe!

  call writefile(['/* Comment */'], 'Xfile.cls')
  split Xfile.cls
  call assert_equal('rexx', &filetype)
  bwipe!

  call writefile(['::class Foo subclass Bar public'], 'Xfile.cls')
  split Xfile.cls
  call assert_equal('rexx', &filetype)
  bwipe!

  " Visual Basic

  call writefile(['VERSION 1.0 CLASS'], 'Xfile.cls')
  split Xfile.cls
  call assert_equal('vb', &filetype)
  bwipe!

  filetype off
endfunc

func Test_cmd_file()
  filetype on

  call writefile(['--rom_model'], 'Xfile.cmd')
  split Xfile.cmd
  call assert_equal('lnk', &filetype)
  bwipe!

  call writefile(['/* comment */'], 'Xfile.cmd')
  split Xfile.cmd
  call assert_equal('rexx', &filetype)
  bwipe!

  call writefile(['REM comment'], 'Xfile.cmd')
  split Xfile.cmd
  call assert_equal('dosbatch', &filetype)
  bwipe!

  filetype off
endfunc

func Test_sa_file()
  filetype on

  call writefile([';* XXX-a.sa: XXX for TI C6000 DSP *;', '.no_mdep'], 'Xfile.sa')
  split Xfile.sa
  call assert_equal('tiasm', &filetype)
  bwipe!

  call writefile(['-- comment'], 'Xfile.sa')
  split Xfile.sa
  call assert_equal('sather', &filetype)
  bwipe!

  filetype off
endfunc

func Test_sig_file()
  filetype on

  call writefile(['this is neither Lambda Prolog nor SML'], 'Xfile.sig', 'D')
  split Xfile.sig
  call assert_equal('', &filetype)
  bwipe!

  " Test dist#ft#FTsig()

  let g:filetype_sig = 'sml'
  split Xfile.sig
  call assert_equal('sml', &filetype)
  bwipe!
  unlet g:filetype_sig

  " Lambda Prolog

  call writefile(['sig foo.'], 'Xfile.sig')
  split Xfile.sig
  call assert_equal('lprolog', &filetype)
  bwipe!

  call writefile(['/* ... */'], 'Xfile.sig')
  split Xfile.sig
  call assert_equal('lprolog', &filetype)
  bwipe!

  call writefile(['% ...'], 'Xfile.sig')
  split Xfile.sig
  call assert_equal('lprolog', &filetype)
  bwipe!

  " SML signature file

  call writefile(['signature FOO ='], 'Xfile.sig')
  split Xfile.sig
  call assert_equal('sml', &filetype)
  bwipe!

  call writefile(['structure FOO ='], 'Xfile.sig')
  split Xfile.sig
  call assert_equal('sml', &filetype)
  bwipe!

  call writefile(['(* ... *)'], 'Xfile.sig')
  split Xfile.sig
  call assert_equal('sml', &filetype)
  bwipe!

  filetype off
endfunc

" Test dist#ft#FTsil()
func Test_sil_file()
  filetype on

  split Xfile.sil
  call assert_equal('sil', &filetype)
  bwipe!

  let lines =<< trim END
  // valid
  let protoErasedPathA = \ABCProtocol.a

  // also valid
  let protoErasedPathA =
          \ABCProtocol.a
  END
  call writefile(lines, 'Xfile.sil', 'D')

  split Xfile.sil
  call assert_equal('sil', &filetype)
  bwipe!

  " SILE

  call writefile(['% some comment'], 'Xfile.sil')
  split Xfile.sil
  call assert_equal('sile', &filetype)
  bwipe!

  call writefile(['\begin[papersize=a6]{document}foo\end{document}'], 'Xfile.sil')
  split Xfile.sil
  call assert_equal('sile', &filetype)
  bwipe!

  filetype off
endfunc

func Test_inc_file()
  filetype on

  call writefile(['this is the fallback'], 'Xfile.inc', 'D')
  split Xfile.inc
  call assert_equal('pov', &filetype)
  bwipe!

  " ObjectScript routine
  call writefile(['ROUTINE Sample [Type=INC]'], 'Xfile.inc', 'D')
  split Xfile.inc
  call assert_equal('objectscript_routine', &filetype)
  bwipe!

  let g:filetype_inc = 'foo'
  split Xfile.inc
  call assert_equal('foo', &filetype)
  bwipe!
  unlet g:filetype_inc

  " aspperl
  call writefile(['perlscript'], 'Xfile.inc')
  split Xfile.inc
  call assert_equal('aspperl', &filetype)
  bwipe!

  " aspvbs
  call writefile(['<% something'], 'Xfile.inc')
  split Xfile.inc
  call assert_equal('aspvbs', &filetype)
  bwipe!

  " php
  call writefile(['<?php'], 'Xfile.inc')
  split Xfile.inc
  call assert_equal('php', &filetype)
  bwipe!

  " pascal
  call writefile(['program'], 'Xfile.inc')
  split Xfile.inc
  call assert_equal('pascal', &filetype)
  bwipe!

  " bitbake
  call writefile(['require foo'], 'Xfile.inc')
  split Xfile.inc
  call assert_equal('bitbake', &filetype)
  bwipe!

  call writefile(['S = "${WORKDIR}"'], 'Xfile.inc')
  split Xfile.inc
  call assert_equal('bitbake', &filetype)
  bwipe!

  call writefile(['DEPENDS:append = " somedep"'], 'Xfile.inc')
  split Xfile.inc
  call assert_equal('bitbake', &filetype)
  bwipe!

  call writefile(['MACHINE ??= "qemu"'], 'Xfile.inc')
  split Xfile.inc
  call assert_equal('bitbake', &filetype)
  bwipe!

  call writefile(['PROVIDES := "test"'], 'Xfile.inc')
  split Xfile.inc
  call assert_equal('bitbake', &filetype)
  bwipe!

  call writefile(['RDEPENDS_${PN} += "bar"'], 'Xfile.inc')
  split Xfile.inc
  call assert_equal('bitbake', &filetype)
  bwipe!

  call writefile(['PREFERRED_PROVIDER_virtual/kernel = "linux-yocto"'], 'Xfile.inc')
  split Xfile.inc
  call assert_equal('bitbake', &filetype)
  bwipe!

  call writefile(['FOO_BAR[baz] = "foobar"'], 'Xfile.inc')
  split Xfile.inc
  call assert_equal('bitbake', &filetype)
  bwipe!

  call writefile(['FOO_BAR_foo/bar[baz/bazzer] = "foobar"'], 'Xfile.inc')
  split Xfile.inc
  call assert_equal('bitbake', &filetype)
  bwipe!

  call writefile(['MACHINEOVERRIDES =. "qemuall:"'], 'Xfile.inc')
  split Xfile.inc
  call assert_equal('bitbake', &filetype)
  bwipe!

  call writefile(['BBPATH .= ":${LAYERDIR}"'], 'Xfile.inc')
  split Xfile.inc
  call assert_equal('bitbake', &filetype)
  bwipe!

  " asm
  call writefile(['asmsyntax=foo'], 'Xfile.inc')
  split Xfile.inc
  call assert_equal('foo', &filetype)
  bwipe!

  filetype off
endfunc

func Test_int_file()
  filetype on

  " Intel HEX
  call writefile([':10010000214601360121470136007EFE09D2190140'], 'Xfile.int', 'D')
  split Xfile.int
  call assert_equal('hex', &filetype)
  bwipe!

  " ObjectScript routine
  call writefile(['ROUTINE Sample [Type=INT]'], 'Xfile.int', 'D')
  split Xfile.int
  call assert_equal('objectscript_routine', &filetype)
  bwipe!

  " ObjectScript routine by IRIS marker in first line
  call writefile(['Exported from IRIS source control'], 'Xfile.int', 'D')
  split Xfile.int
  call assert_equal('objectscript_routine', &filetype)
  bwipe!

  " Not ObjectScript routine by partial IRIS match in first line
  call writefile(['Exported from IRISation source control'], 'Xfile.int', 'D')
  split Xfile.int
  call assert_equal('hex', &filetype)
  bwipe!

  " ObjectScript routine by %RO marker in first three lines
  call writefile(['; generated file', '%RO routine metadata'], 'Xfile.int', 'D')
  split Xfile.int
  call assert_equal('objectscript_routine', &filetype)
  bwipe!

  let g:filetype_int = 'foo'
  split Xfile.int
  call assert_equal('foo', &filetype)
  bwipe!
  unlet g:filetype_int

  filetype off
endfunc

func Test_mac_file()
  filetype on

  " Assembly
  call writefile(['looks like asm'], 'Xfile.mac', 'D')
  split Xfile.mac
  call assert_equal('asm', &filetype)
  bwipe!

  " ObjectScript routine
  call writefile(['ROUTINE Sample [Type=MAC]'], 'Xfile.mac', 'D')
  split Xfile.mac
  call assert_equal('objectscript_routine', &filetype)
  bwipe!

  let g:filetype_mac = 'foo'
  split Xfile.mac
  call assert_equal('foo', &filetype)
  bwipe!
  unlet g:filetype_mac

  filetype off
endfunc

func Test_ll_file()
  filetype on

  " LLVM IR
  call writefile(['target triple = "nvptx64-nvidia-cuda"'], 'Xfile.ll', 'D')
  split Xfile.ll
  call assert_equal('llvm', &filetype)
  bwipe!

  " lex (C++)
  call writefile(['%{', '#include <iostream>', '%}'], 'Xfile.ll', 'D')
  split Xfile.ll
  call assert_equal('lex', &filetype)
  bwipe!

  " lifelines
  call writefile(['proc main() {}'], 'Xfile.ll', 'D')
  split Xfile.ll
  call assert_equal('lifelines', &filetype)
  bwipe!

  filetype off
endfunc

func Test_lsl_file()
  filetype on

  call writefile(['looks like Linden Scripting Language'], 'Xfile.lsl', 'D')
  split Xfile.lsl
  call assert_equal('lsl', &filetype)
  bwipe!

  " Test dist#ft#FTlsl()

  let g:filetype_lsl = 'larch'
  split Xfile.lsl
  call assert_equal('larch', &filetype)
  bwipe!
  unlet g:filetype_lsl

  " Larch Shared Language

  call writefile(['% larch comment'], 'Xfile.lsl')
  split Xfile.lsl
  call assert_equal('larch', &filetype)
  bwipe!

  call writefile(['foo: trait'], 'Xfile.lsl')
  split Xfile.lsl
  call assert_equal('larch', &filetype)
  bwipe!

  filetype off
endfunc

func Test_typ_file()
  filetype on

  " SQL type file

  call writefile(['CASE = LOWER'], 'Xfile.typ', 'D')
  split Xfile.typ
  call assert_equal('sql', &filetype)
  bwipe!

  call writefile(['TYPE foo'], 'Xfile.typ')
  split Xfile.typ
  call assert_equal('sql', &filetype)
  bwipe!

  " typst document

  call writefile(['this is a fallback'], 'Xfile.typ')
  split Xfile.typ
  call assert_equal('typst', &filetype)
  bwipe!

  let g:filetype_typ = 'typst'
  split test.typ
  call assert_equal('typst', &filetype)
  bwipe!
  unlet g:filetype_typ

  filetype off
endfunc

func Test_dsp_file()
  filetype on

  " Microsoft Developer Studio Project file

  call writefile(['# Microsoft Developer Studio Project File'], 'Xfile.dsp', 'D')
  split Xfile.dsp
  call assert_equal('make', &filetype)
  bwipe!

  let g:filetype_dsp = 'make'
  split test.dsp
  call assert_equal('make', &filetype)
  bwipe!
  unlet g:filetype_dsp

  " Faust

  call writefile(['this is a fallback'], 'Xfile.dsp')
  split Xfile.dsp
  call assert_equal('faust', &filetype)
  bwipe!

  filetype off
endfunc

func Test_vba_file()
  filetype on

  " Test dist#ft#FTvba()

  " Visual Basic

  call writefile(['looks like Visual Basic'], 'Xfile.vba', 'D')
  split Xfile.vba
  call assert_equal('vb', &filetype)
  bwipe!

  " Vimball Archiver (ft=vim)

  call writefile(['" Vimball Archiver by Charles E. Campbell, Ph.D.', 'UseVimball', 'finish'], 'Xfile.vba', 'D')
  split Xfile.vba
  call assert_equal('vim', &filetype)
  bwipe!

  filetype off
endfunc

func Test_i_file()
  filetype on

  " Swig: keyword
  call writefile(['%module mymodule', '/* a comment */'], 'Xfile.i', 'D')
  split Xfile.i
  call assert_equal('swig', &filetype)
  bwipe!

  " Swig: verbatim block
  call writefile(['%{', '#include <header.hpp>', '%}'], 'Xfile.i', 'D')
  split Xfile.i
  call assert_equal('swig', &filetype)
  bwipe!

  " ASM
  call writefile(['; comment', ';'], 'Xfile.i', 'D')
  split Xfile.i
  call assert_equal('asm', &filetype)
  bwipe!

  " *.i defaults to progress
  call writefile(['looks like progress'], 'Xfile.i', 'D')
  split Xfile.i
  call assert_equal('progress', &filetype)
  bwipe!

  filetype off
endfunc

func Test_def_file()
  filetype on

  call writefile(['this is the fallback'], 'Xfile.def', 'D')
  split Xfile.def
  call assert_equal('def', &filetype)
  bwipe!

  " Test dist#ft#FTdef()

  let g:filetype_def = 'modula2'
  split Xfile.def
  call assert_equal('modula2', &filetype)
  call assert_equal('pim', b:modula2.dialect)
  bwipe!
  unlet g:filetype_def

  " Modula-2

  call writefile(['(* a Modula-2 comment *)'], 'Xfile.def')
  split Xfile.def
  call assert_equal('modula2', &filetype)
  call assert_equal('pim', b:modula2.dialect)
  bwipe!

  call writefile(['IMPLEMENTATION MODULE Module2Mod;'], 'Xfile.def')
  split Xfile.def
  call assert_equal('modula2', &filetype)
  call assert_equal('pim', b:modula2.dialect)
  bwipe!

  filetype off
endfunc

func Test_uci_file()
  filetype on

  call mkdir('any/etc/config', 'pR')
  call writefile(['config firewall'], 'any/etc/config/firewall', 'D')
  split any/etc/config/firewall
  call assert_equal('uci', &filetype)
  bwipe!

  call writefile(['# config for nginx here'], 'any/etc/config/firewall', 'D')
  split any/etc/config/firewall
  call assert_notequal('uci', &filetype)
  bwipe!

  call writefile(['# Copyright Cool Cats 1997', 'config firewall'], 'any/etc/config/firewall', 'D')
  split any/etc/config/firewall
  call assert_equal('uci', &filetype)
  bwipe!

  filetype off
endfunc

func Test_pro_file()
  filetype on

  "Prolog
  call writefile([':-module(test/1,'], 'Xfile.pro', 'D')
  split Xfile.pro
  call assert_equal('prolog', &filetype)
  bwipe!

  call writefile(['% comment'], 'Xfile.pro', 'D')
  split Xfile.pro
  call assert_equal('prolog', &filetype)
  bwipe!

  call writefile(['/* multiline comment'], 'Xfile.pro', 'D')
  split Xfile.pro
  call assert_equal('prolog', &filetype)
  bwipe!

  call writefile(['rule(test, 1.7).'], 'Xfile.pro', 'D')
  split Xfile.pro
  call assert_equal('prolog', &filetype)
  bwipe!

  " IDL
  call writefile(['x = findgen(100)/10'], 'Xfile.pro', 'D')
  split Xfile.pro
  call assert_equal('idlang', &filetype)
  bwipe!

  filetype off
endfunc


func Test_pl_file()
  filetype on

  "Prolog
  call writefile([':-module(test/1,'], 'Xfile.pl', 'D')
  split Xfile.pl
  call assert_equal('prolog', &filetype)
  bwipe!

  call writefile(['% comment'], 'Xfile.pl', 'D')
  split Xfile.pl
  call assert_equal('prolog', &filetype)
  bwipe!

  call writefile(['/* multiline comment'], 'Xfile.pl', 'D')
  split Xfile.pl
  call assert_equal('prolog', &filetype)
  bwipe!

  call writefile(['rule(test, 1.7).'], 'Xfile.pl', 'D')
  split Xfile.pl
  call assert_equal('prolog', &filetype)
  bwipe!

  " Perl
  call writefile(['%data = (1, 2, 3);'], 'Xfile.pl', 'D')
  split Xfile.pl
  call assert_equal('perl', &filetype)
  bwipe!

  filetype off
endfunc

func Test_make_file()
  filetype on

  " BSD Makefile
  call writefile([''], 'BSDmakefile', 'D')
  split BSDmakefile
  call assert_equal('bsd', get(b:, 'make_flavor', ''))
  bwipe!

  call writefile(['.ifmake all', '.endif'], 'XMakefile.mak', 'D')
  split XMakefile.mak
  call assert_equal('bsd', get(b:, 'make_flavor', ''))
  bwipe!

  " GNU Makefile
  call writefile([''], 'GNUmakefile', 'D')
  split GNUmakefile
  call assert_equal('gnu', get(b:, 'make_flavor', ''))
  bwipe!

  call writefile(['ifeq ($(foo),foo)', 'endif'], 'XMakefile.mak', 'D')
  split XMakefile.mak
  call assert_equal('gnu', get(b:, 'make_flavor', ''))
  bwipe!

  call writefile(['define foo', 'endef'], 'XMakefile.mak', 'D')
  split XMakefile.mak
  call assert_equal('gnu', get(b:, 'make_flavor', ''))
  bwipe!

  call writefile(['vim := $(wildcard *.vim)'], 'XMakefile.mak', 'D')
  split XMakefile.mak
  call assert_equal('gnu', get(b:, 'make_flavor', ''))
  bwipe!

  " Microsoft Makefile
  call writefile(['# Makefile for Windows', '!if "$(VIMDLL)" == "yes"'], 'XMakefile.mak', 'D')
  split XMakefile.mak
  call assert_equal('microsoft', get(b:, 'make_flavor', ''))
  bwipe!

  " BSD or GNU
  call writefile(['# get the list of tests', 'include testdir/Make_all.mak'], 'XMakefile.mak', 'D')
  split XMakefile.mak
  call assert_notequal('microsoft', get(b:, 'make_flavor', ''))
  bwipe!

  filetype off
endfunc

func Test_map_file()
  filetype on

  " TI linker map file
  call writefile(['******************************************************************************', '               TMS320C6x Linker Unix v7.4.24                   ', '******************************************************************************'], 'Xfile.map', 'D')
  split Xfile.map
  call assert_equal('lnkmap', &filetype)
  bwipe!

  " UMN mapserver config file
  call writefile(['MAP', 'NAME "local-demo"', 'END'], 'Xfile.map', 'D')
  split Xfile.map
  call assert_equal('map', &filetype)
  bwipe!

  filetype off
endfunc

func Test_nroff_file()
  filetype on

  call writefile(['.TH VIM 1 "YYYY Mth DD"'], 'Xfile.1', 'D')
  split Xfile.1
  call assert_equal('nroff', &filetype)
  bwipe!

  call writefile(['.Dd $Mdocdate$', '.Dt "DETECTION TEST" "7"', '.Os'], 'Xfile.7', 'D')
  split Xfile.7
  call assert_equal('nroff', &filetype)
  bwipe!

  call writefile(['''\" t'], 'Xfile.3p', 'D')
  split Xfile.3p
  call assert_equal('nroff', &filetype)
  bwipe!

  call writefile(['. /etc/profile'], 'Xfile.1', 'D')
  split Xfile.1
  call assert_notequal('nroff', &filetype)
  bwipe!
endfunc

func Test_org_file()
  filetype on

  call writefile(['* org Headline', '*some bold text*', '/some italic text/'], 'Xfile.org', 'D')
  split Xfile.org
  call assert_equal('org', &filetype)
  bwipe!

  filetype off
endfunc

func Test_info_file()
  filetype on

  call writefile(['File: coreutils.info,  Node: Top,  Next: Introduction,  Up: (dir)'], 'Xfile', 'D')
  split Xfile
  call assert_equal('info', &filetype)
  bwipe!

  filetype off
endfunc

func Test_mail_file()
  filetype on

  call writefile(['Return-path: <lgc@debian.home.arpa>'], 'Xfile', 'D')
  split Xfile
  call assert_equal('mail', &filetype)
  bwipe!

  filetype off
endfunc

func Test_terminfo_file()
  filetype on

  call writefile(['#	Reconstructed via infocmp from file: /etc/terminfo/x/xterm'], 'Xfile', 'D')
  split Xfile
  call assert_equal('terminfo', &filetype)
  bwipe!

  filetype off
endfunc

" Filetypes detected from names of existing files
func Test_pacmanlog()
  filetype on
  for fname in ['pacman.log', 'pacman.log.1', 'pacman.log-20250123']
    call writefile(["[2025-01-23T01:23:45+0000] [PACMAN] Running 'pacman -S -y --config /etc/pacman.conf --'"], fname, 'D')
    exe 'split ' .. fname
    call assert_equal('pacmanlog', &filetype, 'for text: ' .. string(fname))
    bwipe!
  endfor
  filetype off
endfunc

func Test_diff_format()
  filetype on

  call writefile(['0d555557  1 (John John   2025-01-01 00:00:00 +0000  1) foo'], 'Xdiff', 'D')
  split Xdiff
  call assert_true(empty(&filetype))
  bwipe!

  filetype off
endfunc

func Test_m4_format()
  filetype on

  call mkdir('Xm4', 'R')
  cd Xm4
  call writefile([''], 'alocal.m4')
  split alocal.m4
  call assert_equal('m4', &filetype)
  bwipe!
  " an accompanying configure.ac in the current directory changes the filetype
  call writefile([''], 'configure.ac')
  split alocal.m4
  call assert_equal('config', &filetype)
  bwipe!

  cd -
  filetype off
endfunc

" Erlang Application Resource File
func Test_app_file()
  filetype on

  call writefile(['% line comment', '{application, xfile1,'], 'xfile1.app', 'D')
  split xfile1.app
  call assert_equal('erlang', &filetype)
  bwipe!

  call writefile(['% line comment', "{application, 'Xfile2',"], 'Xfile2.app', 'D')
  split Xfile2.app
  call assert_equal('erlang', &filetype)
  bwipe!

  call writefile([' % line comment',
        \ ' ',
        \ ' % line comment',
        \ ' { ',
        \ ' % line comment ',
        \ ' application , ',
        \ ' % line comment ',
        \ ' xfile3 , '],
        \ 'xfile3.app', 'D')
  split xfile3.app
  call assert_equal('erlang', &filetype)
  bwipe!

  filetype off
endfunc

" vim: shiftwidth=2 sts=2 expandtab
