Presentation
STklos is a free Scheme system compliant with the languages features defined in R5RS. The aim of this implementation is to be fast as well as light. The implementation is based on an ad-hoc Virtual Machine. STklos can also be compiled as a library and embedded in an application.
The salient points of STklos are:
- an efficient and powerful object system based on CLOS providing
- Multiple Inheritance,
- Generic Functions,
- Multi-methods
- an efficient MOP (Meta Object Protocol)
- a simple to use module system
- a full tower of numbers implementation, as defined in R5RS,
- easy connection to the GTK+ toolkit,
- a Perl compatible regular expressions thanks to the PCRE package,
- easily extensible with its ScmPkg mechanism,
- it implements properly tail recursive calls.
Latest News
2018-06-04: version “1.20” released
Even if previous version was released more than seven years ago, STklos is not completely dead.
Now the developement tree of STklos is available on Gitlab and Github.
Changes in this version are:
- Corrected some problems on UTF8 encoding
- Bug fix of a long standing bug on
call/cc. - Function can now be created with the UTF8 symbol
λ - Added the
#!fold-caseand#!no-fold-casespecial notations of R7RS - Updated documentation
- Bug fixes
2011-12-31: version “1.10” released
This version brings the support of UTF-8 encoding and begins to support some (future) R7RS traits:
- Added full support for UTF-8 strings and symbols
- Added support for Win32 support under Cygwin
- Added some support for R7RS traits:
- bytesvectors
- hexadecimal chars in strings and symbols
- continuations lines in strings
- New primitives
char-foldcasestring-foldcasestring-foldcase!make-liststring-mapstring-for-eachvector-for-eachvector-map
- Added support for MacOs X Lion
- Added back support for Win32 using Cygwin (this support has still rough edges. See the file PORTING-NOTES in the distribution directory for details)
- Bug Fixes
2010-12-30: version “1.01” released
This is mainly a maintenance version.
- Documentation update
- Modifications to support ScmPkg on MacOs MacPorts
- Fix incompatibilities in FFI introduced in 1.00
- Better x86_64 support
- Bug fixes