I-expressions

I-expressions is a data notation created in 2003 by Egil Möller.

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This SRFI descibes a new syntax for Scheme, called I-expressions, whith equal descriptive power as S-expressions. The syntax uses indentation to group expressions, and has no special cases for semantic constructs of the language. It can be used both for program and data input.

I-expressions first developed in https://srfi.schemers.org
Read more about I-expressions on the web: 1.
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Example from the web:

define
  fac x
  if
   = x 0
   1
   * x
     fac
      - x 1
 let
  group
   foo
    + 1 2
   bar
    + 3 4
  + foo bar

I-expressions - Data notation

Language features