-- spellchecker:off
return {
  arg_prefix_type = {
    ['$'] = 'environment',
    ['&'] = 'option',
  },
  commands_type = {
    -- File completion
    edit = 'file',
    read = 'file',
    write = 'file',
    saveas = 'file',
    source = 'file',
    split = 'file',
    vsplit = 'file',
    tabedit = 'file',
    diffsplit = 'file',
    diffpatch = 'file',
    explore = 'file',
    lexplore = 'file',
    sexplore = 'file',
    vexplore = 'file',
    find = 'file_in_path',
    sfind = 'file_in_path',
    tabfind = 'file_in_path',
    -- Directory completion
    cd = 'dir',
    lcd = 'dir',
    tcd = 'dir',
    chdir = 'dir',
    -- Buffer completion
    buffer = 'buffer',
    bdelete = 'buffer',
    bwipeout = 'buffer',
    bnext = 'buffer',
    bprevious = 'buffer',
    bfirst = 'buffer',
    blast = 'buffer',
    sbuffer = 'buffer',
    sball = 'buffer',
    diffthis = 'diff_buffer',
    diffoff = 'diff_buffer',
    diffupdate = 'diff_buffer',
    -- Command completion
    command = 'command',
    delcommand = 'command',
    -- Option completion
    set = 'option',
    setlocal = 'option',
    setglobal = 'option',
    -- Help completion
    help = 'help',
    -- Expression completion
    substitute = 'expression',
    global = 'expression',
    vglobal = 'expression',
    let = 'expression',
    echo = 'expression',
    -- Tag completion
    tag = 'tag',
    stag = 'tag',
    tselect = 'tag',
    tjump = 'tag',
    tlast = 'tag',
    tnext = 'tag',
    tprev = 'tag',
    tunmenu = 'tag',
    -- Argument completion
    args = 'arglist',
    argadd = 'file',
    argdelete = 'file',
    argdo = 'file',
    -- User completion (for user-defined functions/commands)
    ['function'] = 'function',
    delfunction = 'function',
    -- Mapping completion
    map = 'mapping',
    noremap = 'mapping',
    unmap = 'mapping',
    nmap = 'mapping',
    vmap = 'mapping',
    imap = 'mapping',
    cmap = 'mapping',
    nunmap = 'mapping',
    vunmap = 'mapping',
    iunmap = 'mapping',
    cunmap = 'mapping',
    -- Autocmd completion
    autocmd = 'event',
    augroup = 'augroup',
    doautocmd = 'event',
    doautoall = 'event',
    -- Shell command completion
    terminal = 'shellcmd',
    ['!'] = 'shellcmd',
    -- Misc
    ['='] = 'lua',
    colorscheme = 'color',
    compiler = 'compiler',
    filetype = 'filetype',
    highlight = 'highlight',
    history = 'history',
    lua = 'lua',
    messages = 'messages',
    packadd = 'packadd',
    register = 'register',
    runtime = 'runtime',
    sign = 'sign',
    syntax = 'syntax',
    user = 'user',
  },
  modifiers = {
    p = 'full path',
    h = 'directory (head)',
    t = 'filename (tail)',
    r = 'basename (root, no ext)',
    e = 'extension',
    s = 'substitute first occurrence',
    gs = 'substitute all occurrences',
    S = 'escape for shell',
    ['~'] = 'relative to home directory',
    ['.'] = 'relative to current directory',
  },
  completion_types = {
    buffer = { 'buffer', 'diff_buffer' },
    path = { 'dir', 'dir_in_path', 'file', 'file_in_path', 'runtime' },
  },
}
-- spellchecker:on
