- ...Makefile 
 - This is the top-level Makefile in
the  harvest directory created by extracting the Harvest
distribution.
 
- ...tree 
 - A quick way to build and install 
the Harvest software into the top-level directory is: 
 make prefix=`pwd` all install.
 
- ...export 
 - The Gatherer leaves the  gatherd daemon running
in the background to export the database.
 
- ...enumerate. 
 - We do not support cross-method
enumeration from Gopher, because of the difficulty of ensuring that
Gopher pointers do not cross site boundaries.  For example, the Gopher
URL 
gopher://powell.cs.colorado.edu:7005/1ftp3aftp.cs.washington.edu40pub/
would get an FTP directory listing of ftp.cs.washington.edu:/pub, even though
the host part of the URL is powell.cs.colorado.edu.
 
- ...zero 
 - In general we set these defaults to be
conservative.  However, we set the default Depth to unlimited to be
backwards-compatible with the RootNode specification semantics defined in
Harvest Version 1.0.
 
- ...HTML) 
 - While
HTTP provides MIME types, other access methods (like FTP) do not.
Essence can use either explicit information or heuristic ``rules'' to
determine types.
 
- ...(DTD). 
 - A good reference for learning how to write DTDs is
 [18].
 
- ...binhex 
 - At present we have bundled software for decoding the
binhex format, but not integrated it into Essence
 
- ...attempts 
 - The Gatherer uses its own cache rather than
the Harvest Cache (see Section 6.7) because
gathering isn't likely to exhibit much locality, and would hence affect
the Cache's performance.
 
- ...limits. 
 - We are
currently working on adding Harvest support for some of the more
powerful features in the commercial WAIS engine.
 
- ...[#Nebula94##1#] 
 - While Nebula was built by one of the Harvest
investigators' research groups, we do not presently distribute the Nebula
system with Harvest.  We will do so in a future release of Harvest.
 
- ...support 
 - WAIS indexes use fine-grained blocks and a sorted index to
minimize search-time I/O, while Glimpse allows regular expressions and other
features by searching the index sequentially, and allows indexing granularity
to be adjusted to trade index size for search time.
 
- ...features. 
 - We are currently
working on adding Harvest support for some of the more powerful features
in the commercial WAIS engine.
 
- ...Verity 
 -  http://www.verity.com/
 
- ...site 
 -  ftp://ftp.cs.colorado.edu/distribs/harvest/components/Verity/
 
- ...package 
 - The
Geographic Resources Analysis Support System package is from the US Army
Corps of Engineers.  See 
http://www.cecer.army.mil/grass/GRASS.main.html.
 
- ...site 
 -  http://www.nwi.fws.gov/maps_ftp.html
 
- ...distribution) 
 - You should edit one of your  /etc/rc* files so the
Cache is automatically started when your machine boots up.
 
- ...clients 
 - Netscape
Communications Corp. is promoting active documents, which is the needed
standard.
 
- ...code 
 - The 
harvest/src/gatherer/essence/unnest.c file contains the
definitions of nested types.  To specify that a type is nested, follow the
directions at the top of the  unnest.c file.
 
 
Duane Wessels 
Wed Jan 31 23:46:21 PST 1996