- ...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