Terminology police on the prowl ... :-)
> <DOCTYPE paper PUBLIC "-//IETF//DTD HTML//3.0" [
> <!ENTITY ch1 SYSTEM "ch1.html">
> <!ENTITY ch2 SYSTEM "ch2.html">
I believe the entity declarations should be:
<!ENTITY ch1 SYSTEM "ch1.html" SUBDOC>
<!ENTITY ch2 SYSTEM "ch2.html" SUBDOC>
The SUBDOC keyword is important, because it tells the SGML validator (or
in this example, the Web client), that the entity defines a reference
to a complete document (i.e. contains its own DOCTYPE declaration). This
distinction is important because the SUBDOC feature insures protection
from name spacing conflicts between the main document and the subdocument.
--ewh