REON is an expressive data format similar to Ren (which is based on Red and Rebol syntax) that can be translated to/from JSON.
Notable features:
- Expressive syntax for representing various kinds of values
- Comments and free-form syntax
- Procedural macros for generating repetitive data
- JS API and CLI helper
Planned features:
- (Compact) binary data representation
- Input validation for string data (e.g. regexps, globs, queries, etc)
- Support other formats such as YAML or CSON