TOML Format configuration file

TOML:

GitHub's current new project has been diverted it's coffeescript. Coffeescript is much more concise and elegant than JavaScript. Similarly, GitHub feels that YAML is not concise and elegant, so it makes a TOML.

The goal of TOML is to become a minimalist profile format. TOML is designed to be unambiguously mapped to a hash table, which is parsed by multiple languages.

Example

title = "TOML Example" [Owner]name = "Tom preston-werner" organization = "GitHub" bio = "GitHub cofounder & Ceo\nlikes Tater t OTs and Beer. " DOB = 1979-05-27t07:32:00z # Date Time is a class citizen. Why not? [Database]server = "192.168.1.1" ports = [8001, 8001, 8002]connection_max = 5000enabled = true[servers] # You can indent according to your wishes. Use a space or tab.  Toml don't care.  [Servers.alpha] IP = "10.0.0.1" dc = "EQDC10" [Servers.beta] IP = "10.0.0.2" dc = "EQDC10" [Clients]data = [["Gamma", "Delta"], [1, 2]]# is not related to line wrapping in an array. hosts = ["Alpha", "Omega"]

TOML is case-sensitive.

Func replaceenvsfile (path string)   (string, error)  {file, err := os. Open (path) if err != nil {return  "",  err}r, err := envsub (file) if  err != nil {return  "",  err}contents, err := ioutil. ReadAll (R) if err != nil {return  "",  err}return string (contents),  nil} Func envsub (R io. Reader)   (IO. Reader, error)  {bufin := bufio. Newreader (r) bufout := new (bytes. Buffer) for {chunk, err := bufin.readbytes (Byte ('% ')) if err != nil {if  err == io. Eof {// we ' Re done.bufout.write (chunk) break}return nil, err}bufout.write (Chunk[:len ( Chunk)-1]) tmp := make ([]byte, 4) Tmp, err = bufin.peek (4) if err !=  nil {if err == io. Eof {// end of file, wrIte the last few bytes out and exit.bufout.writerune ('% ') bufOut.Write (TMP) Break}return nil, err}if string (TMP)  ==  "env["  {// Found opening  delimiter, advance the read cursor and look for// closing  Delimiter.tmp, err = bufin.readbytes (Byte (' [')) If err != nil {// this  shouldn ' T happen, since the peek succeeded.return nil, err}chunk,  err = bufin.readbytes (Byte ('] ')) If err != nil {if err == io . eof {// no closing delimiter, return an errorreturn nil,  errmissingclosedelim}return nil, err}//  ' Chunk '  is now holding var  Name + closing delimiter.// var name contains invalid characters,  return an errorif  bytes. Indexany (chunk, invalidenvchars)  != -1 | | bytes. Index (Chunk, invalidenvprefix)  != -1 {return nil, errinvalidchars}varname : = string (Chunk[:len (chunk)-1]) Varval := os. Getenv (VarName) bufout.writestring (varval)} else {// just a random  '% ',  not  an opening delimiter, write it out and// keep  Going.bufOut.WriteRune ('% ')}}return bufout, nil}func main () {       contents, err := replaceenvsfile ("test.toml")  if err != nil { Return err}if _, err = toml. Decode (contents, &configfile);  err != nil {return fmt. Errorf ("error decoding config file: %s",  err)}}

Configuration file Test.toml

[Hekad]

Share_dir= "/usr/local/heka"

The output is:

Map[hekad:map[share_dir:/usr/local/heka]]

TOML Format configuration file