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Re: [Nmh-workers] repl*comps and and non-ascii characters

From: Valdis . Kletnieks
Subject: Re: [Nmh-workers] repl*comps and and non-ascii characters
Date: Fri, 25 Jul 2008 16:00:28 -0400

On Thu, 24 Jul 2008 23:34:57 PDT, Eric Gillespie said:

> Um, you're looking at the quoted-unreadable format I transmitted
> the files in.  You want to save these with mhstore, and then
> you'll see.

You missed the point.  The problem is that even *after* you handle
the Q-P encoding, the line looks like this:

% hexdump -C /tmp/work9
00000000  54 6f 3a 20 54 c3 b6 6d  20 c3 98 72 6c 65 79 20  |To: T..m ..rley |
00000010  3c 74 65 73 74 64 65 63  6f 64 65 40 65 78 61 6d  |<address@hidden|
00000020  70 6c 65 2e 63 6f 6d 3e  0a                       |ple.com>.|

Broken out byte by byte we have x'54' T, x'c3' (iso8859-1 cap-A-tilde or the
first half of a UTF-8, something else entirely for koi-8), x'b6' (iso8859-1
para-sign or second half of an UTF-8 O-umlaut).  A few bytes later, we have
x'20 c3 98'.  A blank, and then two *more* bytes that are encoding-dependent,
but with no way to tell what encoding was used.  After undoing the Q-P,
you now have the same *bytecodes* - but by the same toke, the mhstore
has *LOST* the charset="UTF-8" that the text/plain had attached to it.

The line doesn't contain any rfc2047 encoding tags, or any other way to
determine what non-ascii characters are in use. They're not in the mail as I
received it, they're not in the file produced after I mhsave it, they're simply

If you *do* have an rfc2047 tag in that line that I'm managing to not see,
please point it out to me.  Not all the world is UTF-8, and it is *NOT*,
repeat *NOT* acceptable to just proclaim that it is.

To: T=C3=B6m =C3=98rley <address@hidden>

Also Wrong, but produces the same bytes:
To: =iso8859-1?Q?T=C3=B6m =C3=98rley? <address@hidden>

Right, and produces the same bytes:
To: =?utf-8?Q?T=C3=B6m=20=C3=98rley? <address@hidden>

Ponder until you understand why all 3 produce the same decoded bytes,
but only one is actually correct.

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