Mark,
maybe I am just misunderstanding you, however my tip using CSS
selector groups (comma separated) is:
for the direct descendants
descendant-or-self = "self > *, self"
for all the descendants
descendants-or-self = "self *, self"
Both will get you a collection of descendant including the element
itself. For ancestors there isn't an equivalent CSS syntax that I am
aware of.
Hope you are missing one less now....
--
Diego
On 28 Nov, 15:34, Mark Gibson <[EMAIL PROTECTED]> wrote:
> For people who are familiar with XPath, I think it would be useful to
> list
> the similarities between XPath axes and jQuery selection/traversal
> methods,
> and also add any useful discrepancies into jQuery, or describe how to
> emulate
> them.
>
> This is my interpretation, additions would be most welcome, ideally
> I'd like
> to cover all the appropriate axes (not marked n/a).
>
> XPath Axis jQuery
>
> ancestor context.parents(...)
> ancestor-or-self ?
> attribute n/a
> child context.children(...) or "context > ..." or $
> ("> ...", context)
> descendant context.find(...) or "context ..." or $(...,
> context)
> descendant-or-self ?
> following ?
> following-sibling context.nextAll(...) or "context ~ ..."?
> namespace n/a
> parent context.parent(...)
> preceding ?
> preceding-sibling context.prevAll(...) or "... + context"?
> self context.filter(...) ???
>
> I've found a few situations where I've needed 'ancestor-or-self',
> 'following', and
> 'preceding' style selection, but not found any easy way to do it.
>
> For example, keyboard navigation of a tree (key up & down) would
> benefit
> greatly from the following and preceding axes.
>
> Finding descendants and including all the elements specified in an
> aria-owns
> attribute in the search would benefit from the descendant-or-self
> axis.
> (ie. find in the context element, and find-inc-self for all elements
> specified
> by the attribute)
>
> I know there is a .andSelf(), but I don't think it really cover these
> situations.
> Previously I've suggested a .selfOrParents() method, but I think a
> general
> 'include self' switch before a traversal method would be better:
>
> context.incSelf().find(...)
> context.incSelf().parents(...)
>
> Can the jQuery team see this as being generally useful, and accepted
> into the core?
> Or any alternative suggestions?
>
> Also, any suggestions on how to do following or preceding style
> selection?
>
> Cheers
> -Mark
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