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> ...and what does the "public" indicate?
SGML handbook says..
A public identifier is a name that is intended to be meaningful across
systems and different user environments.....
In other words, as opposed to SYSTEM identifiers which traditionally
are file system references on your local system, PUBLIC identifiers are
globally unique names for things. Of course in XML where the SYSTEM
identifier is a URI so possibly globally known, and the PUBLIC
identifier isn't forced to be in Formal Public Identifier syntax
things are slightly murky, but still, given
PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" "docbook/docbookx.dtd"
The public identifier "-//OASIS//DTD DocBook XML V4.1.2//EN"
is the globally unique name for that version of the docbook DTD,
as known to the "public", whereas the sytem identifier
"docbook/docbookx.dtd" is just where it happens to be on my system
(relative to the file from which I copied this
David
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