ANN: chibi-scheme release 0.9 "fluorine"

[Alex Shinn]

I'm pleased to announce version 0.9 of chibi-scheme, "fluorine"

(not responsible for the fluoridation of Larceny's water).

  http://synthcode.com/scheme/chibi/chibi-scheme-0.9.0.tgz

This release includes complete builtin support for the Tangerine

Edition of the R7RS large language.  With the ambitious scope

of R7RS large, it's unlikely further editions will continue to have

builtin support, and will instead rely on external repositories like

snow-fort.

A new compile-time option can enable O(1) string-ref using

an offset lookup table.  It is disabled by default because it's

still slower than string cursors, and has some small additional

overhead in memory, I/O and the FFI.

Other notable changes include:

  * A novel syntax-case implementation built on ER macros

    by Marc Nieper-Wißkirchen.

  * Improved Windows support by Yuki Okumura, and BSD support

    thanks to Kris Katterjon, Andrew Gwozdziewycz, and Taylor Campbell.

  * LIghtweight library aliases.

  * Native SRFI 160 uniform vectors, with FFI and read/write support.

  * A startup option can enable strict string-cursor checks,

    so that cursors can only be used with the string they reference.

  * JSON read/write support, with utilities to read records.

  * Diff highlighting in unit test failures.

  * Updated to Unicode 13.

  * ... plus many new SRFIs, portability improvements, and bugfixes.

Not counting aliases and test packages, Chibi now comes with

over 200 libraries in the base distribution, with many more available

on snow-fort.org.

Thanks to everyone else who contributed code, bug reports or

feedback!

--

Alex

[Alex Shinn]

I've just tagged a new minor release with several bug fixes, notably:

  * equal? hash tables had a sporadic bug with string and vector keys

  * the distribution of random numbers with bignum values had gaps

  * minor fixes for SRFI 160 and SRFI 144

--

Alex

[Marc Nieper-Wißkirchen]

Alex Shinn schrieb am Samstag, 1. August 2020 um 02:39:46 UTC+2:

Thanks to everyone else who contributed code, bug reports or

feedback!

And thank you for having invented Chibi-Scheme in the first place and maintaining it so greatly since then!

 

-- Marc