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

[John Cowan <cowan@x>]

Alex Shinn scripsit:

> > The procedure
> >
> >   (string-append string ...)
> >
> > exists to concatenate strings, like append concatenates lists.
> > However there is no vector-append and bytevector-append which
> > concatenate vectors and bytevectors.

Ballot ticket #444 filed for vector-append (sorry about the noise due to
submitting when I meant to preview).

> > The procedures
> >
> >   (string-map proc string1 string2 ...)
> >   (vector-map proc vector1 vector2 ...)
> >
> >   (string-for-each proc string1 string2 ...)
> >   (vector-for-each proc vector1 vector2 ...)
> >
> > are for strings and vectors what map and for-each are for lists.
> > There is no such procedures for bytevectors.

As noted in an earlier message, bytevectors are intentionally second-class
in the small language, as they are intended to be the foundation of
other numeric vectors in the large language.  Therefore I am not filing
a ticket for new bytevector procedures.

-- 
John Cowan    http://ccil.org/~cowan    cowan@x
Mr. Henry James writes fiction as if it were a painful duty.  --Oscar Wilde
The work of Henry James has always seemed divisible by a simple dynastic
arrangement into three reigns: James I, James II, and the Old Pretender.
                --Philip Guedalla

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