I've got a gateway to a Z39.50 server which returns characters which I
can't serialize to XML and/or successfully deserialize, for example the
ascii escape character.  (Why this is in the index I have no idea, as it
makes the term impossible to search with, but that's not my problem or my
fault)

As we don't have term surrogate diagnostics, what do I do?

* Simply omit the term?
   This seems wrong, but I'm tending towards it as the best of a bad lot.

* Return a term with a null value?
   Wrong, as a search for the null value may or may not produce results.

* Strip out the unserializable characters and return the resulting term?
   Seems wrong as the numberOfRecords will probably be wrong, barring good
   fortune.

* Other?

Rob


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