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Re: hash-table-{to, from}-alist

From: Ted Zlatanov
Subject: Re: hash-table-{to, from}-alist
Date: Mon, 24 Nov 2008 11:21:24 -0600
User-agent: Gnus/5.110011 (No Gnus v0.11) Emacs/23.0.60 (gnu/linux)

On Mon, 24 Nov 2008 10:44:44 -0500 Richard M Stallman <address@hidden> wrote: 

RMS>     BTW, it turns out that in XEmacs and its descendants prin1 uses the CL
RMS>     structure syntax when `print-readably' is bound to t:

RMS>    #s(hash-table size 1 data (x x-value))

RMS> Being compatible with that seems like a good idea,
RMS> if there is no obstacle.

The equality test is necessary if it was given originally (meaning, if
it's not 'eql).  I don't think we should ever omit it, even if it's the
default value, for readability.

The :weakness, :rehash-size, and :rehash-threshold options to
make-hash-table, can probably be omitted when they are the defaults.

Would this work?

#s(hash-table size 2 test equal data (k1 v1) (k2 v2))

Finally, the size is just a hint with make-hash-table; should the (read)
allow wrong sizes or throw an error?


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