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Hjson is an open source data notation created in 2014 by Christian Zangl.

#264on PLDB 10Years Old
Download source code:
git clone

Hjson is a syntax extension to JSON. It's NOT a proposal to replace JSON or to incorporate it into the JSON spec itself. It's intended to be used like a user interface for humans, to read and edit before passing the JSON data to the machine.

Example from the web:
{ # hash style comments # (because it's just one character) // line style comments // (because it's like C/JavaScript/...) /* block style comments because it allows you to comment out a block */ # Everything you do in comments, # stays in comments ;-} }

Language features

Feature Supported Token Example
MultiLine Comments /* */
/* A comment
# A comment
Line Comments #
# A comment
Semantic Indentation X

View source

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