W3C home > Mailing lists > Public > xml-names-editor@w3.org > November 2002

Re: last call comments, usage of IRI rather than URI

From: Chris Lilley <chris@w3.org>
Date: Fri, 29 Nov 2002 12:32:30 +0100
Message-ID: <1915274312.20021129123230@w3.org>
To: www-tag@w3.org, Richard Tobin <richard@cogsci.ed.ac.uk>
CC: julian.reschke@greenbytes.de, xml-names-editor@w3.org

On Friday, November 29, 2002, 1:37:47 AM, Richard wrote:

>> It has been demonstrated that using IRI (refs) as namespace names breaks
>> existing XML applications (such as XML Schema, schemaLocation attribute) and
>> APIs (JAXP). I'd like to understand why this isn't considered a problem.

RT> IRIs that contain spaces can't be used with the schemaLocation
RT> attribute, but IRIs in general can, as far as I can see.  It seems to
RT> me that IRIs with spaces have disadvantages in other contexts too (eg
RT> in plain text), and that we should either not allow spaces in IRIs or
RT> live with the problem, rather than not using IRIs at all.

To clarify - spaces that form part of the S production in XML. Other
spaces (ideographic space, non breaking space, etc) do not have an
effect on parsing of XML attribute values that use spaces as a list
item separator.

 Chris                            mailto:chris@w3.org
Received on Friday, 29 November 2002 06:32:34 UTC

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