1 

     2 local function check (text, lang)

     3     local fname = os.tmpname()

     4     local fh = io.open(fname, "w")

     5 

     6     fh:write(text)

     7     fh:close()

     8 

     9     local cmd = "/usr/bin/enchant -a "..fname

    10     if lang and not lang:match("[^_%w]") then

    11         cmd = cmd.." -d "..lang

    12     end

    13     fh = io.popen(cmd)

    14     fh:read("*l")           -- skip header

    15     result = fh:read("*a")  -- read spellchecker output

    16     fh:close()

    17 

    18     os.remove(fname)

    19     return result

    20 end

    21 

    22 local function spell (args)

    23     if not args then return nil, "What do you want me to spellcheck?" end

    24     local r

    25     local l, s = string.match(args, "^%s*-d%s?([%w_]+)%s+(.*)%s*$")

    26     if l then

    27         r = check(s, l)

    28     else

    29         r = check(args)

    30     end

    31     return r:gsub("\n+$", "")

    32 end

    33 

    34 mcbot_register_command("spell", spell)