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James Cummings wrote:

> Peter Boot wrote:
> 
>>
>> (2) write some kind of comparison program for the old and new XML 
>> files and have this program produce some kind of delta file describing 
>> the changes; this delta file should then be the input for another 
>> program that updates the pointers in the annotation file.
>>
>> I suppose we'll do (2). I'm not happy with it, but I can't really 
>> think of another solution.
> 
> There are a number of xml diff  and patch programs out there, might 
> these serve as a useful starting point?  A quick google shows things 
> such as http://diffxml.sourceforge.net/ amongst many others.  Or is this 
> kind of approach *too* generalistic for the very specific situation?
> 

We'd certainy have to investigate what others have done in this respect. 
At first sight the diffxml output looks very promising. But it is only a 
first step towards updating the xpath expressions.

Peter