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WWW::Search::WebCrawler - class for searching WebCrawler |
- NAME
- SUPPORTED PLATFORMS
- SYNOPSIS
- DESCRIPTION
- SEE ALSO
- HOW DOES IT WORK?
- BUGS
- TESTING
- AUTHOR
- LEGALESE
- VERSION HISTORY
NAME
WWW::Search::WebCrawler - class for searching WebCrawler
SUPPORTED PLATFORMS
- Windows
SYNOPSIS
use WWW::Search;
my $oSearch = new WWW::Search('WebCrawler');
my $sQuery = WWW::Search::escape_query("+sushi restaurant +Columbus Ohio");
$oSearch->native_query($sQuery);
while (my $oResult = $oSearch->next_result())
print $oResult->url, "\n";
DESCRIPTION
This class is a WebCrawler specialization of WWW::Search. It handles making and interpreting WebCrawler searches http://www.WebCrawler.com.
This class exports no public interface; all interaction should be done through the WWW::Search manpage objects.
SEE ALSO
To make new back-ends, see the WWW::Search manpage.
HOW DOES IT WORK?
native_setup_search is called (from WWW::Search::setup_search)
before we do anything. It initializes our private variables (which
all begin with underscore) and sets up a URL to the first results
page in {_next_url}.
native_retrieve_some is called (from WWW::Search::retrieve_some)
whenever more hits are needed. It calls WWW::Search::http_request
to fetch the page specified by {_next_url}.
It then parses this page, appending any search hits it finds to
{cache}. If it finds a ``next'' button in the text,
it sets {_next_url} to point to the page for the next
set of results, otherwise it sets it to undef to indicate we''re done.
BUGS
Please tell the author if you find any!
TESTING
This module adheres to the WWW::Search test suite mechanism.
See $TEST_CASES below.
AUTHOR
As of 1998-03-16, WWW::Search::WebCrawler is maintained by Martin Thurn
(MartinThurn@iname.com)
WWW::Search::WebCrawler was originally written by Martin Thurn
based on WWW::Search::HotBot.
LEGALESE
THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
VERSION HISTORY
If it's not listed here, then it wasn't a meaningful or released version.
2.02, 1999-10-05
now uses hash_to_cgi_string()
2.01, 1999-07-13
1.13, 1999-03-29
Remove extraneous HTML from description (thanks to Jim Smyser jsmyser@bigfoot.com)
1.11, 1998-10-09
Now uses split_lines function
1.9
1998-08-20: New format of www.webcrawler.com output.
1.7
\n changed to \012 for MacPerl compatibility
1.5
1998-05-29: New format of www.webcrawler.com output.
1.3
First publicly-released version.
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WWW::Search::WebCrawler - class for searching WebCrawler |