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Re: what should the charset be in the response to the server

From: Jungshik Shin <jshin@i18nl10n.com>
Date: Fri, 25 Jul 2003 16:11:17 -0400 (EDT)
To: Shigemichi Yazawa <yazawa@globalsight.com>
cc: <www-international@w3.org>
Message-ID: <Pine.BSO.4.33.0307251535090.19869-100000@callisto.jtan.com>

On Fri, 25 Jul 2003, Shigemichi Yazawa wrote:

> At Wed, 23 Jul 2003 08:49:41 +0200,
> Michael Jansson wrote:
> >
>
> The web page above suggests that content-type param in HTTP request
> header contains character encoding information of escaped characters
> (i.e. %HH). But as far as I know, a value of content-type param of a
> submitted form is always application/x-www-form-urlencoded without
> character encoding information. I confirmed this with Mozilla 1.0 and

  For a while (before 1.0), Mozilla added 'charset' parameter to
Content-Type header  with application/x-www-form-urlencoded, but
it broke a lot of CGI programs and was removed later.
(see http://bugzilla.mozilla.org/show_bug.cgi?id=18643)

> My understanding is that the character encoding in POST request is,
> unfortunately, as ambiguous as in GET request.

  If you specify ENCTYPE="multipart/form-data" in FORM, you'll
get charset parameter specified in each part of 'multipart/form-data'
if necessary.
See http://www.w3.org/TR/html401/interact/forms.html#h-17.13.4.2

None of examples in HTML 4.01 has 'charset' parameter, but it's clear
that the following is possible:

 Content-Type: multipart/form-data; boundary=AaB03x

 --AaB03x
 Content-Disposition: form-data; name="submit-name"
 Content-Type: text/plain; charset=EUC-JP
 Content-Transfer-Encoding: 8bit

 Japanese name  in EUC-JP
 --AaB03x
 Content-Disposition: form-data; name="files"; filename="file1.txt"
 Content-Type: text/plain; charset=EUC-JP
 Content-Transfer-Encoding: 8bit

  ... contents of file1.txt in EUC-JP
 --AaB03x--




 Jungshik
Received on Friday, 25 July 2003 16:11:28 GMT

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