Shrubbery Notation - Data notation

Shrubbery Notation is a data notation created in 2023 by Matthew Flatt .

#3122on PLDB

2Years Old

Shrubbery notation is a set of text-level conventions that build toward a full programming language, such as Rhombus. The notation is line- and indentation-sensitive, and it is intended to partially group input, but leave further parsing to another layer, especially enforestation. The parsed form of a shrubbery imposes grouping to ensure that further parsing is consistent with the shrubbery’s lines and indentation.

Tags: dataNotation
S-expressions and Python and I-expressions and Clojure influenced the design of Shrubbery Notation

Example from the web:

block:
  println("group within block")
  println("another group within block")

if is_rotten(apple)
| get_another()
| take_bite()
  be_happy()

match x
| 0:
    let zero = x
    x + zero
| n:
    n + 1

cond
| // check the weather
  is_raining():
    take_umbrella()
| // check the destination
  going_to_beach():
    wear_sunscreen()
    take_umbrella()
| // assume a hat is enough
  ~else:
    wear_hat()