source: project/wiki/eggref/5/srfi-38 @ 39264

[[tags: egg]]

== srfi-38

[[toc:]]

=== Description

A Chicken version of the reference implementation for
[[http://srfi.schemers.org/srfi-38/srfi-38.html|SRFI-38]], a facility
for reading and writing objects with shared structure.

=== Author

[[Alex Shinn]], ported to Chicken 5 by Sergey Goldgaber

=== Documentation

See [[http://srfi.schemers.org/srfi-38/srfi-38.html|SRFI-38 document]].

This implementation extends '''write-with-shared-structure''' to accept
the optional keyword parameter '''#:ignore-strings''', which is true
will treat strings as normal (nonshared) objects even if repeated.

The utility `make-repl-support-shared-structure' is also provided to
support printing results at the REPL with shared structure.

=== Changelog

* [[https://github.com/diamond-lizard/srfi-38/releases/tag/0.8|0.8]] Registered 'srfi-38 feature, and added links to source code in the README
* [[https://github.com/diamond-lizard/srfi-38/releases/tag/0.7|0.7]] Removed extra, incorrect "license" clause from Chicken egg.
* [[https://github.com/diamond-lizard/srfi-38/releases/tag/0.6|0.6]] Ported to Chicken 5
* 0.4 Small bugfixes, re-introducing the ignore-strings: parameter, supporting #true and #false.
* 0.3 ...
* 0.2 ...
* 0.1 Rewrite from scratch by Alex Shinn.

=== License

This code was written by Alex Shinn in 2009 and placed in the
Public Domain.  All warranties are disclaimed.