Semantics question?

["Pawson, David" <DPawson@xxxxxxxxxxx>]

Need: To output an address as a single paragraph, each element comma
seperated.
        Address is made up of addressline1 to addressline 3 etc.
<!ELEMENT address - -
	(adsline1,
	adsline2?,
	adsline3?,
	town,
	county?,
        country?,
	post-code?) >
 Caveats. any part of the address may be empty
.
E.g. 38 Gleneagles,Edenfield,Lancashire, PE3 7EJ   is OK
so is the above with any single addressline missing.

In order to get the surrounding paragraph I am using
(element address
	(make paragraph
	use: para-style
	(make sequence
		(process-matching-children "adsline1")
		(process-matching-children "adsline2")
		(process-matching-children "adsline3")
		(process-matching-children "town")
		(process-matching-children "county")
		(process-matching-children "country")
		(process-matching-children "post-code")
	)))


Since all processing apart from the last is identical,
I started to write a function to take current-node as a parameter


(define (commasepls nd)
(make sequence
   (process-children) ???
   (if (not(string=? (data nd) ""))
     (literal ","))))

then for each comma seperated element -

 (element adsline1
   (commasepls (current-node)))


Except! I don't have any 'children' at the time
the function is called (I think).

when I tried to put in (process-node-list nd)
I started to get warnings from jade about loops

I understand that current-node is a singleton node list,
which can be processed, but the semantics of what I
am dealing with I find confusing.



Any help appreciated,
TIA, DaveP





timeo gaecos dona ferentes


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