read-entity/sgml-parse and file access?

Subject: read-entity/sgml-parse and file access?
From: Norman Walsh <ndw@xxxxxxxxxx>
Date: Sat, 31 Oct 1998 12:55:02 -0500
Good morning,

I'm experimenting with read-entity and sgml-parse and I have a
small problem. If I attempt either of these functions on a file
that doesn't exist, I get an error.  Is it possible to test for
the existance of the file first?  The document I'd like to read
might not exist (which for this application would be fine).

Norman Walsh <ndw@xxxxxxxxxx>      | A successful tool is one that was                 | used to do something undreamed of
                                   | by its author.--S. C. Johnson

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