Whitespace (programming language)

For syntactically significant whitespace in non-esoteric programming languages, see Off-side rule.
Whitespace hello world program with syntax highlighting
  tabs
  spaces

Whitespace is an esoteric programming language with syntax where only whitespace characters (space, tab and linefeed) have meaning – contrasting typical languages that largely ignore whitespace characters. [1][2]

As a consequence of its syntax, Whitespace source code can be contained within the whitespace of code written in a language that ignores whitespace – making the text a polyglot.[2]

Whitespace is an imperative, stack-based language. The programmer can push arbitrary-width integer values onto a stack and access a heap to store data.

An interpreter, along with its Haskell source code, is provided by the Whitespace creators.

  1. ^ "Whitespace". Compsoc. Archived from the original on 18 June 2015. Retrieved 8 December 2015.
  2. ^ a b Parker, Matt (2019). Humble Pi: a comedy of maths errors. Allen Lane. p. 21. ISBN 978-0-241-36023-1.