Schluessel - 機能

Schluessel - A Scheme Implementation on Java -

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Features

Supports R5RS features
Supports R5RS macro and traditional macro
Supports arbitrary precision integers, flonum, and complex numbers
Supports SRFIs (Scheme Request for Implementation) as follows

SRFI-0 (Feature-based conditional expansion construct)
SRFI-1 (List libraries)
SRFI-2 (AND-LET*)
SRFI-4 (Homogenious vectors)
SRFI-6 (String ports)
SRFI-8 (receive)
SRFI-9 (records)
SRFI-10 (Sharp-comma external forms)
SRFI-13 (String libraries)
SRFI-14 (Character sets)
SRFI-16 (Syntax for procedures of variable arity)
SRFI-17 (Generazied set!)
SRFI-18 (Multithreading)
SRFI-19 (Time Data Types and Procedures)
SRFI-22 (Running Scheme Scripts on Unix)
SRFI-23 (Error reports)
SRFI-25 (Multi-dimensional Array Primitives)
SRFI-28 (Basic Format Strings)
SRFI-30 (Nested Multi-line Comments)
SRFI-34 (Exception Handling for Programs)
SRFI-38 (External Representation for Data With Shared Structure)
SRFI-39 (Parameter objects)
SRFI-41 (Streams)
SRFI-44 (Collections)
SRFI-47 (Array)
SRFI-58 (Array Notation)
SRFI-60 (Integers as Bits)
SRFI-62 (S-expression comments)
SRFI-63 (Homogeneous and Heterogeneous Arrays)
SRFI-66 (Octet Vectors)
SRFI-67 (Compare Procedures)
SRFI-69 (Basic hash tables)
SRFI-94 (Type-Restricted Numerical Functions)
SRFI-98 (An interface to access environment variables)

Supports multi-byte characters and strings
Supports Decimal32 and Decimal64
Supports Java library reflection, which has Clojure-like syntax.
Java classes can be used as records
Scheme codes manipulation by Java
User-defined #-syntax
Building parsers with formal language; LALR(1) language class supported
Building lexical analyser (tokenizer) with regular expression
Schluessel plugin
Sound libraries
Supports generic functions and tiny ObjectSystem
Supports syntax-case macro partially. Supported features are listed as follows
- syntax-case
- syntax(#'), quasisyntax(#`), unsyntax(#,), unsyntax-splicing(#,@)
- make-variable-transformer
- identifier?
- syntax->datum, datum->syntax
- generate-tempolaries
Supports graphics language. Supported features are listed as follows
- inputs from image file
- draws line, rectangle, ellipsis, characters
- outputs to image file (JPEG, GIF and PNG are supported)
Computing special functions. Supported functions are listed as follows
- Bessel functions(complex domain)
- Gamma functions(complex domain)
Supports accessing RDBs used by JDBC
Web applications using Java Servlet technology
Supports XML Parsing
Applet by Scheme
Supports Swing applications
Supports file manipulation
Supports regular expressions
Supports linear algebra library(elementary arithmetics of matrices, LU decomposition, solving linear equations)
Supports exact complex numbers
Supports quaternions and octionions
Supports 1-variable polynomials
Supports ranges of real number
Supports networking
HTTP, FTP, SMTP, SNMP, LDAP are avaliable
JNDI is avaliable
Supports reading zip files and reading and writing gzip files
Supports desktop's tray icons
R6RS I/O is available
Statistics procedures are available
Exact pi and Nepier's number are available
An iterator framework is available
Processes are available
Supports turtle graphics

Restrictions

restriction of syntax-case

with-syntax is not supported

(define-syntax with-syntax
  (lambda (x)
    (syntax-case x ()
      ((_ ((p e0) ...) e1 e2 ...)
       (syntax (syntax-case (list e0 ...) ()
                 ((p ...) (let () e1 e2 ...))))))))

Yuichiro Moriguchi