Re: [Scheme-reports] Generalization of append, map, and for-each to other sequences

[John Cowan <cowan@x>]

Kun Liang scripsit:

> These programmers are acctually using racket, guile, chicken...
> not standard scheme. The codes is not portable even acrossing different
> implementations.

I expect people will continue to write applications in particular Scheme
implementations, using the portability of the implementation itself
(most implementations work on most CPUs/OSes in current use) to achieve
general portability.  But Scheme has always suffered from a lack of
portable libraries.  A major purpose of R7RS is to make rich portable
libraries possible to write.  It won't get all the way there, but if it
is widely adopted by implementations (as R6RS has not been), it may help.

-- 
John Cowan  http://ccil.org/~cowan    cowan@x
There are books that are at once excellent and boring.  Those that at
once leap to the mind are Thoreau's Walden, Emerson's Essays, George
Eliot's Adam Bede, and Landor's Dialogues.  --Somerset Maugham

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