About Element attribute name

[pierre feuilloley]

Hello,   I have a trouble about an XML file and two Xerces examples (Sax2count, and Domcount). I'm testing on PC with NT4 sp5, I'm using xerces 1.40 binary and examples, and visual c++ 6.0 sp4.   XML file:   <?xml version='1.0' encoding="UTF-8" ?> <!DOCTYPE Dictionnary [ <!ELEMENT Dictionnary (category)+> <!ELEMENT category (action)+> <!ATTLIST category id ID #REQUIRED> <!ATTLIST action what (add|delete) #REQUIRED> <!ELEMENT action (content)+> <!ELEMENT content (#PCDATA)> ]>   <Dictionnary>   <category id="0">     <action what="add">       <content>JOURX.DET.CUM.</content>     </action>     <action what="add">       <content>JOURX.DET.CUM.</content>     </action>   </category>   <category id="1">     <action what="add">       <content>000001</content>       <content>000002</content>       <content>000003</content>       <content>000004</content>     </action>   </category> </Dictionnary> when I'm executing Sax2count or Domcount (F:\xerces\xerces-c1_4_0-win32\bin>sax2count f:\temp\test.xml), I have this message:   Error at file f:\temp\test.xml, line 12, char 20   Message: The values for attribute 'id' must be names or name tokens   Can tell me why I can't use "0" for Id attribute of category.   When I'm testing successfully this file with Internet explorer 5 and Notepad Xml.   Best Regard.   Pierre FEUILLOLEY   Docubase Systems 116, rue d'Aguesseau - BP 405 92103 BOULOGNE BILLANCOURT - France *(33) 01 49 09 22 85 [EMAIL PROTECTED]