Tom's Obvious, Minimal Language (toml)

Card Puncher Data Processing


toml 1) is a configuration file format that aimed to be the most human readable (than YAML Ain’t Markup Language (YAML) …)

Good to know

  • It doesn't permit top-level arrays or floats, so it cannot directly serialize some data.
  • There is also no standard identifying the start or end of a TOML file, which can complicate sending it through a stream.

These details must be negotiated on the application layer.


# This is a TOML document.

title = "TOML Example"

name = "Tom Preston-Werner"
dob = 1979-05-27T07:32:00-08:00 # First class dates

server = ""
ports = [ 8000, 8001, 8002 ]
connection_max = 5000
enabled = true


  # Indentation (tabs and/or spaces) is allowed but not required
  ip = ""
  dc = "eqdc10"

  ip = ""
  dc = "eqdc10"

data = [ ["gamma", "delta"], [1, 2] ]

# Line breaks are OK when inside arrays
hosts = [

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Card Puncher Data Processing
Application - Configuration File

Configuration file are files used to: store command argument / enviroment variable or pass values They have a structural hierarchy where each parent node is generally known as a section. There...

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