At 2014-01-05 16:50 +0000, Ihe Onwuka wrote:
If x is the document element of a document in a collection, is it
the sibling of y that is the document element of another document in
the same collection?
If not why not?
It doesn't, because the specification says it doesn't:
http://www.w3.org/TR/2007/REC-xpath-functions-20070123/#func-collection
"returns a sequence of nodes"
A sequence of nodes has no sibling inter-relationships.
For my students there is a helpful diagram regarding memory
organization on page 223 of my XSLT book that is available for free
download on a "try and buy" basis at
http://www.CraneSoftwrights.com/training/#ptux ... if you decide not
to pay for the book, please delete the copy that you download for free.
The memory organization in XQuery is the same, and I use a similar
diagram in my XQuery hands-on class that shows the different
declaration syntaxes. But the handouts for that class are not
available publicly, so I can only share with you the XSLT pages.
A tree of nodes is different than a sequence of nodes. In a tree
nodes can have a sibling relationship, but in a sequence, there is no
connection between the nodes.
I hope this helps.
. . . . . . . . . Ken
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