VI.d.1 GREP searching
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Traditional GREP searching is a brute-force search of a directory for one or
more character strings.  Files in which one or more hits on the specified
character strings are found are returned in a menu to the client for possible
retreival.  The OpenVMS Gopher Server implements this using DCL Search at
present. As a result, regular expressions are not permissable as search terms. 
To define a GREP search, the path must specify a directory, as in:

	Path=7gopher_root1:[gopher.vms.server]

A side effect of the OpenVMS implementation allows specification of wildcarded
files to restrict the search to only a subset of the directory, as in:

	Path=7[source]*.c, *.h

Hunter Goatley (formerly of Western Kentucky University, Bowling Green, KY,
USA) has ported GNU grep v1.6 to OpenVMS; this is used for EGREP.  Thanks to
Foteos Macrides  (Worcester Foundation for Experimental Biology) for enhancing
EGREP for use  with the OpenVMS Gopher Server (GGREP) and to Hunter, both for
porting GREP and  for incorporating Foteos' enhancements into the general
distribution as part  of the official OpenVMS version of EGREP.  Note the
standard OpenVMS distribution also includes this port of EGREP.

A file, [.DOC]ABOUT.REGULAR_EXPRESSIONS, is supplied to provide a basis for a
document you might want to include a link to whenever you provide a link to a
GREP search.  Regular expressions are the heart of a GREP search, but it is
not a given that your users will understand what they are and how to use them. 

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