W3C home > Mailing lists > Public > xmlschema-dev@w3.org > April 2009

RE: different whitespace-collapse behaviour of parsers

From: Dave Peterson <davep@iit.edu>
Date: Mon, 20 Apr 2009 11:47:47 -0400
Message-Id: <a06240800c6124713c20d@[]>
To: Dieter Guthmann <mailing-deg@bup-nbg.de>
Cc: xmlschema-dev@w3.org, Michael Kay <mike@saxonica.com>
On Fri, 13 Mar 2009 08:29:16 -0000, Michael Kay wrote (to xmlschema-dev):
>The specification is a little bit less formal than one might like:

>and I guess one could argue for an interpretation that says a character
>can't be a "leading #x20" unless it is followed by something - but it seems
>a bit far-fetched to me. I think Liquid XML Studio is out on a limb here.
>But I've raised bug 6695 to propose a clarification.

The XSD WG has eliminated the words 'leading' and 'trailing'; the revised
text is:

>   After the processing implied by replace, contiguous sequences of #x20's are
>collapsed to a single #x20, and any #x20 at the start or end of the string is
>then removed.

The result of collapsing a string consisting solely of whitespace is
the empty string, and this wording is intended to make that more obvious.
Dave Peterson

Received on Monday, 20 April 2009 15:53:22 UTC

This archive was generated by hypermail 2.3.1 : Wednesday, 7 January 2015 14:56:16 UTC