Hi,
I am a newer to docbook, and I am using the parameter entity to control my output contents. As I see from the document for sgml I can do below: <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0//EN" [ <!ENTITY % electronic.copy "INCLUDE"> ]]> ... <![ %electronic.copy [ This content should only appear in the electronic version of the document. ]]> But when I use them in xml as below is does not work, and reports "parser error : StartTag: invalid element name" <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V5.0//EN" "http://docbook.org/xml/5.0/dtd/docbook.dtd";[ <!ENTITY Intro SYSTEM "Intro.xml"> <!ENTITY Setup SYSTEM "Setup.xml"> <!ENTITY % SRS.output "INCLUDE"> ]> <book> <bookinfo> <copyright> <year>2010</year> </copyright> </bookinfo> <title> manual</title> <![ %SRS.output [ <para>help me</para> ]]> </book> Anyone can advise how to do it in xml rather than sgml? Thanks in advance. Regards, Hake
