Source files for examples in Chapter 6 of the LaTeX Graphics Companion
catalog catalog file for nsgmls
xml.dcl SGML declaration for XML spec
invitation.xml XML source introduced in Section 6.4.2.2
invitation.dtd DTD source introduced in Section 6.4.3
emptyexample.xml XML source introduced in Section 6.5.5
wrong.xml XML source introduced in Section 6.6.5.5
Important remark:
To run the examples with nsgmls, you should first set the
environment variable SGML_CATALOG_FILES to the value catalog,
for instance in the Bourne shell
