Jirka, This is amazingly useful and nonobvious information. I never would have thought of this mistake. Thank you. I looked at the spec for xml:id and I cannot seem to find a reference to this requirement. Perhaps I am not understanding a concept or terminology used on the spec page. http://www.w3.org/TR/xml-id/ For future reference, how would I know about a requirement on an attribute value like this one? Robert Ngle 2009/6/28 Jirka Kosek <jirka@kosek.cz>:
Robert Nagle wrote:
SystemID: I:\My Documents\xml\rj3\er1.xml Engine name: oNVDL Severity: error Description: bad value for attribute "id" from namespace "http://www.w3.org/XML/1998/namespace" Start location: 2:80
******************************* here is what I have in the er1.xml file:
<?xml version="1.0" encoding="UTF-8"?> <chapter xmlns="http://docbook.org/ns/docbook" version="5.0" xml:id="99er1">
IDs must start with letter (or underscore and few other characters) but not with number. This is cause of your error.
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