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case-sensitivity of weakness indicator

From: Julian Reschke <julian.reschke@gmx.de>
Date: Tue, 31 Mar 2009 13:47:19 +0200
Message-ID: <49D202C7.6070803@gmx.de>
To: HTTP Working Group <ietf-http-wg@w3.org>
Hi,

looking at 
<http://greenbytes.de/tech/webdav/draft-ietf-httpbis-p4-conditional-06.html#rfc.section.2>:

--- snip ---
   entity-tag = [ weak ] opaque-tag
   weak       = "W/"
   opaque-tag = quoted-string

...

A "weak entity tag," indicated by the "W/" prefix, MAY be shared by two 
entities of a resource only if the entities are equivalent and could be 
substituted for each other with no significant change in semantics. A 
weak entity tag can only be used for weak comparison.
--- snip ---


According to the ABNF, "w/" would be allowed as well. However, the prose 
doesn't mention this.

It seems this was just an oversight, and the spec should state the 
weakness indicator *is* case-sensitive, by saying:

   entity-tag = [ weak ] opaque-tag
   weak       = %x57.2F ; "W/", case-sensitive
   opaque-tag = quoted-string


Feedback appreciated,

Julian
Received on Tuesday, 31 March 2009 11:48:04 GMT

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