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Re: draft-duerst-mailto-bis-05: Detailed review of '@' and '+'

From: Bjoern Hoehrmann <derhoermi@gmx.net>
Date: Wed, 11 Mar 2009 04:21:24 +0100
To: "Michael A. Puls II" <shadow2531@gmail.com>
Cc: uri@w3.org
Message-ID: <unaer4p79hd5575hpla9rhpe09tc61bu67@hive.bjoern.hoehrmann.de>
* Michael A. Puls II wrote:
>In an http URI, if I want to put '@' and '+' in an hfvalue,
>I need to percent-encode them like this:
>http://example.com/test.php?hfname=%40%2B

The characters are reserved meaning that you risk changing the semantics
by replacing them by the corresponding escape sequence and vice versa if
you do not have additional information. Beyond that applications may use
them in any way they desire. So, whether you have to escape them depends
on whoever controls that particular resource. Some schemes draw no dis-
tinction here, e.g., data:,@ and data:,%40 refer to the same text.
-- 
Björn Höhrmann · mailto:bjoern@hoehrmann.de · http://bjoern.hoehrmann.de
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Received on Wednesday, 11 March 2009 03:22:09 UTC

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