chicken-edn

An EDN reader and writer for chicken scheme.

Data type conversions

• DONE All kinds of numbers get converted to Scheme numbers, precision suffixes (N and M) get ignored.
• DONE Keywords :keyword get converted to chicken scheme keywords keyword:.
• DONE Maps get converted to a-lists (and vice versa). There'll be a global setting to use srfi-69 hashtables instead.
• DONE Vectors are srfi-4 vectors.
• DONE EDN Sets get converted to lists.
• TODO The #inst tag requires egg rfc3339. You'll have to manually register a handler, but a convenience function is provided.
• TODO #uuid is read as a String.

API

• (edn-read-file filename) Reads the contents of the file and returns a list where each entry is a top-level form of the .edn file.
• (edn-read-string string) Reads a string containing one EDN-top-level-form and returns the scheme equivalent of it.

Other tasks

• Clean up code
• Tag handling
• Chicken egg
• EDN writing

Releases

• 0.2: Can read EDN-files and -strings. EDN tags are not working yet.

Roadmap

• 0.3: EDN tags work.
• 0.3.1: Code cleanup with performance improvements.
• 0.4: Can write scheme data structures (lists,vectors,hashmaps) to EDN.
• 0.4.1: Code cleanup with performance improvements.
• 0.5: API to write lists and vectors as sets, alists as maps, and tags.
• 0.5.1: Code cleanup.

About

Written by Daniel Ziltener. EDN written by Rick Hickey. The EDN specification is available at https://github.com/edn-format/edn.