WWW::Search::SFgate - class for searching SFgate/Wais search engine

    require WWW::Search;
    $search = new WWW::Search('SFgate');

This class is a SFgate specialization of WWW::Search. It queries and interprets searches based on SFgate, which is available at http://ls6-www.informatik.uni-dortmund.de/SFgate/welcome.html

This class exports no public interface; all interaction should be done through WWW::Search objects.

This object rewrites URLs to use the preformatted, verbose output format of SFgate. This allows it to get the 'score' and 'size' information easily. The url portions it rewrites are 'verbose=1' and 'listenv=pre'.

This search supports standard WWW::Search arguments

search_url

The SFgate URL to search. This usually looks like http://somehost/cgi-bin/SFgate

search_args

The arguments used for the search engine, separate them by &.

To make new back-ends, see WWW::Search,

WWW::Search::SFgate is written by Paul Lindner, <lindner@itu.int>

Things not supported: $result->raw()

Copyright (c) 1997,98 by the United Nations Administrative Committee on Coordination (ACC)

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