Re: more profile confusion

Sure, that wouldn't hurt. As for deleting them, perhaps in the specified
profiles, but not as feature designators. They are not redundant in their
definition, just in their potential usage.

On Thu, Mar 15, 2012 at 2:59 AM, Andreas Tai <tai@irt.de> wrote:

>  It would be good to make this more explicit in the spec. As well it maybe
> worth considering to delete redundant features from the DFXP Profiles.
>
> - Andreas
> Am 15.03.2012 07:45, schrieb Glenn Adams:
>
>
>
> On Mon, Mar 12, 2012 at 4:47 PM, Michael A Dolan <mdolan@newtbt.com>wrote:
>
>>  Either way, I am also confused about the practice of including various
>> features concurrently – both in the Recommendation and as used by 3rdparties. I don’t know what it means to include:
>>
>>
>>
>> 1.            Both (for example): #backgroundColor and
>> #backgroundColor-block; or
>>
>> 2.            All of (for example): #backgroundColor,
>> #backgroundColor-block, #backgroundColor-inline, and
>> #backgroundColor-region; or
>>
>> 3.            Both (for example):  #presentation and #core.
>>
>>
>>
>> In #1, doesn’t #backgroundColor sweep in all semantics and placement?  If
>> so, what does it mean to add the more restricted one? And if
>> #backgroundColor does not include all semantics and placement, what is
>> excluded? (This is just an example and the same question can be asked of
>> all the #[feature]-[subset] constructions.)
>>
>
>  specifying that #backgroundColor is required is equivalent to specifying
> that #backgroundColor-{block,inline,region} are required;
>
>  the reason for having the subset features is that one may not require
> all, e.g., may not require inline background color, but only require block
> and region, in which case one would specify that
> #backgroundColor-{block,region} are required; or if one is lazy (and
> willing to risk running on a presentation processor that happens to support
> block and region background color but not inline background color), then
> one could merely specify #backgroundColor as required
>
>  so in this case, specifying #backgroundColor-block is redundant
>
>
>>   In #2, all the subset constructions are specified. How is this
>> different from simply #backgroundColor?
>>
>
>  no difference, specifying the subset constructions is redundant
>
>
>>   In #3, #core is included in #presentation, so isn’t #presentation
>> adequate?
>>
>
>  #core is a subset of #presentation, so in specifying both the former is
> redundant
>
>  ¿claro?
>
>
>
> --
> ------------------------------------------------
> Andreas Tai
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