I wonder ...
DuCharmR at moodys.com
Tue Mar 2 19:39:08 GMT 1999
>I'd like to reuse book.dtd inside library.dtd without rewriting
(First, this is really a question for the xml-l list or comp.text.xml.
xml-dev is for people developing XML software.)
This is what external parameter entities are for. Parameter entities
store pieces of a DTD, and "external" means "stored in a separate file"
(or the equivalent construct in your operation system). For example, if
book.dtd is the following:
<!ELEMENT book (chapter+)>
<!ELEMENT chapter (par+)>
<!ELEMENT par (#PCDATA)>
your library.dtd file could look like this:
<!ELEMENT library (shelf+)>
<!ELEMENT shelf (book+)>
<!ENTITY % bookdtd "book.dtd">
Bob DuCharme www.snee.com/bob <bob@
snee.com> see www.snee.com/bob/xmlann for "XML:
The Annotated Specification" from Prentice Hall.
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