Re: [ACTION 177] Preserve Space

Hi Shaun,

2012/8/2 Shaun McCance <shaunm@gnome.org>

> I posted a call for consensus about Preserve Space a couple week
> ago. This is a more fleshed out text for the spec, with examples.
>
> I didn't get feedback on the data category itself, but I think
> it's non-controversial. If nobody objects, I'll add this text
> to the draft after a few days.
>
> ================
>
> = Definition
>
> The Preserve Space data category indicates how whitespace should be
> handled in content. The possible values for the Preserve Space data
> category are "default" and "preserve" and carry the same meaning as
> the corresponding values of the xml:space attribute. The default value
> is "default".
>
> = Implementation
>
> The Preserve Space data category can be expressed with global rules,
> or locally using the xml:space attribute.
>
> GLOBAL: The preserveSpaceRule element contains the following:
>
> * A required selector attribute. It contains an XPath expression
> which selects the nodes to which this rule applies.
>
> * A required space attribute with the value "default" or "preserve".
>
>   Example ##: The Preserve Space data category expressed globally
>
>   The preserveSpaceRule element specifies that whitespace in all
>   verse elements must be treated literally.
>

In the example below, isn't the information of the global rule and the
local xml:space attribute redundant? That is, wouldn't the global rule work
without the xml:space attribute at the "verse" element?

Best,

Felix


>
>   <book>
>    <info>
>     <its:rules xmlns:its="http://www.w3.org/2005/11/its"
>       its:version="2.0">
>      <its:preserveSpaceRule selector="//verse" space="preserve"/>
>     </its:rules>
>    </info>
>    <verse xml:space="preserve">
> 'Twas brillig, and the slithy toves
>  Did gyre and gimble in the wabe;
> All mimsy were the borogoves,
>  And the mome raths outgrabe.
> </verse>
>   </book>
>
> LOCAL: The xml:space attribute, as defined in section 2.10 of [XML 1.0],
> maps exactly to the Preserve Space data category.
>
>   Example ##: The Preserve Space data category expressed locally
>
>   The standard xml:space attribute specifies that the whitespace
>   in the verse element must be treated literally.
>
>   <book
>     xmlns:its="http://www.w3.org/2005/11/its"
>     its:version="2.0">
>    <verse xml:space="preserve">
> 'Twas brillig, and the slithy toves
>  Did gyre and gimble in the wabe;
> All mimsy were the borogoves,
>  And the mome raths outgrabe.
> </verse>
>   </book>
>
>
>
>
>


-- 
Felix Sasaki
DFKI / W3C Fellow