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Re: UUIDGEN in lisp

From: Stefan Monnier
Subject: Re: UUIDGEN in lisp
Date: Thu, 19 Feb 2004 16:57:21 GMT
User-agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.3.50

> I suggest to use raw-text-unix when doing I/O of random bytes that you
> don't want to be mangled.  no-conversion (binary is just its alias)
> once meant that the internal Mule representation was read and written
> to produce multibyte characters, so I suggest to avoid that to prevent
> confusion.

AFAIK, binary, no-conversion, and raw-text-unix are completely equivalent.
There might have been an earlier version of Emacs where `binary' was not
handled as binary, but that was clearly a bug because `binary' says very
clearly what it means.
So I recommend to use `binary' when reading a binary file because it's
obviously the right thing and if things go wrong it's clear that it's
a problem with Emacs rather than with the elisp code.  The bytes read from
/dev/urandom have nothing to do with text, so `raw-text-unix' is just
a bad choice.


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