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24 lines
1.2 KiB
Plaintext
24 lines
1.2 KiB
Plaintext
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Scheme 48 is an implementation of the Scheme programming language as
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described in the Revised^4 Report on the Algorithmic Language Scheme.
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It is based on a compiler and interpreter for a virtual Scheme
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machine. The name derives from our desire to have an implementation
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that is simple and lucid enough that it looks as if it were written in
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just 48 hours. We don't claim to have reached that stage yet; much
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more simplification is necessary.
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Scheme 48 tries to be faithful to the upcoming Revised^5 Scheme
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Report, providing neither more nor less in the initial user
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environment. (This is not to say that more isn't available in other
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environments; see below.) Support for numbers is weak: bignums are
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slow and floating point is almost nonexistent (see description of
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floatnums, below). DEFINE-SYNTAX, LET-SYNTAX, LETREC-SYNTAX, and
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SYNTAX-RULES are supported, but not the rest of the Revised^4 Scheme
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macro proposal.
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Notes for FreeBSD port: The external dynamic loading doesn't work
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properly due in part to non-portable code and limited support by
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FreeBSD for SUN dlfcn routines. Unless you need to load external
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C code, this is a fine interpreter.
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Ported to FreeBSD by Josh MacDonald, <jmacd@uclink.berkeley.edu>
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