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Re: Impact of xml:space="preserve" on line break normalizing?

• To: "Roger L. Costello" <costello@m...>
• Subject: Re: Impact of xml:space="preserve" on line break normalizing?
• From: Daniel Veillard <veillard@r...>
• Date: Mon, 8 Sep 2003 09:27:42 -0400
• Cc: xml-dev@l...
• In-reply-to: <3F5C8139.C37F7152@m...>; from costello@m... on Mon, Sep 08, 2003 at 09:16:41AM -0400
• References: <3F5C8139.C37F7152@m...>
• Reply-to: veillard@r...
• User-agent: Mutt/1.2.5.1i

On Mon, Sep 08, 2003 at 09:16:41AM -0400, Roger L. Costello wrote:
> Hi Folks,
> 
> Thanks for clarifying that all line breaks in a document are normalized.
> 
> Here's a twist on this issue.  Suppose that an element has an
> xml:space="preserve" attribute.  Do the line breaks in its content get
> normalized?

  The line breaks normalization and xml:space features are othogonal
as far as I understand. The line breaks normalization applies everywhere.
The xml:space="preserve" is about character data made of white space
and used for indentation (mostly), like 
<a xml:space="preserve">
<b/>
</a>
basically means that the text nodes surrounding element b must not be modified
by an editor even if it usually indents output. It forces to report that those
chars are character data and not ignorable whitespace (in a SAX terminology)
to the application. It does not modify the parsing behaviour.

> For example, consider this XML document: (line break characters are
> explicitly shown)
> 
> <?xml version="1.0"?> \n\r
> <Test> \n\r
>      <para xml:space="preserve">This is a \n\r
>      simple paragraph. What \n\r
>      do you think of it?</para> \n\r
> </Test> \n\r
> 
> Note that the <para> element has an xml:space="preserve" attribute.
> 
> After normalizing the line breaks do we end up with this:
> 
> <?xml version="1.0"?> \n\r
> <Test> \n
>      <para xml:space="preserve">This is a \n
>      simple paragraph. What \n
>      do you think of it?</para> \n
> </Test> \n
> 
> Observe that ** all ** line breaks have been normalized.

   yes, I think it's the correct behaviour.

Daniel

-- 
Daniel Veillard      | Red Hat Network https://rhn.redhat.com/
veillard@r...  | libxml GNOME XML XSLT toolkit  http://xmlsoft.org/
http://veillard.com/ | Rpmfind RPM search engine http://rpmfind.net/

• References:
  • Impact of xml:space="preserve" on line break normalizing?
    • From: "Roger L. Costello" <costello@m...>

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