RE: Processing fot

["Reynolds, Gregg" <greynolds@xxxxxxxxxxxxxx>]

> When I process a flow-object-tree 
> 
	I think you mean source grove.  About the only think you can to
with flobs is specify them and their concatenation.

> process the "a" elements that are referenced by "page-number" elements
> 
> (with the ref attribute) within the fot. Currently I do this by
> selecting
> all the "page-number" elements in the document and check if their
> "ref"
> attribute matches my current "a" element.
> 
	Are you using "select-elements" to do this?  It should be
reasonably fast since its a builtin, but I don't think there is any way
to avoid searching the tree each time you process an "a" element.  An
implementation might cache the results behind the scenes but I don't
know if jade does this.  You might be able to speed things up by using
an ID attribute; the sgml property set specifies an "elements" property
of the SGMLDOC node (ie the root note), which is a list of "all the
elements in the document which have unique identifiers", where the
distinquishing property is "id".  I think that this means all elements
with the "ID" attribute.  This is part of the "instabs" module, and I'm
not sure Jade implements it.  But if it does I would bet that the list
of such elements is cached internally, so "select-elements" using the id
property should be pretty fast.


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