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Home Page: http://metacpan.org/release/FEAR
License: Other
Read-only release history for FEAR
Home Page: http://metacpan.org/release/FEAR
License: Other
NAME FEAR::API - There's no fear with this elegant site scraper DESCRIPTION FEAR::API is a tool that helps reduce your time creating site scraping scripts and help you do it in an much more elegant way. FEAR::API combines many strong and powerful features from various CPAN modules, such as LWP::UserAgent, WWW::Mechanize, Template::Extract, Encode, HTML::Parser, etc. and digests them into a deeper Zen. More documentation will come sooooooner or later. EXAMPLES use FEAR::API -base; Fetch a page and print to STDOUT print fetch("google.com")->document->as_string; fetch("google.com"); print $$_; fetch("google.com") | _print; Fetch a page and save it to a file url("google.com")->() | _save_as("google.html"); Recursive get web pages from Google url("google.com")->() >> _feedback; &$_ while $_; Recursive get web pages from Google url("google.com")->() >> _feedback; $_ | _save_as_tree("./root"); $_->() | _save_as_tree("./root") while $_; Follow the second link of Google url("google.com")->()->follow_link(n => 2); Return links from Google's homepage print Dumper fetch("google.com")->links; Submit a query to Google url("google.com")->(); submit_form( form_number => 1, fields => { q => "Kill Bush" } ); Get links of some pattern url("[% FOREACH i = [a..z] %] http://some.site/[% i %] [% END %]"); &$_ while $_; Deal with links in a web page (I) Minimal url("google.com")->() >> [ qr(^http:) => _feedback, qr(google) => \my @l, qr(google) => sub { print ">>>".$_->[0],$/ } ]; $_->() while $_; print Dumper \@l; Verbose fetch("http://google.com") ->report_links( qr(^http:) => _feedback, qr(google) => \my @l, qr(google) => sub { print ">>>".$_->[0],$/ } ); fetch while has_more_urls; print Dumper \@l; Deal with links in a web page (II) Minimal url("google.com")->() >> { qr(^http:) => _feedback, qr(google) => \my @l, qr(google) => sub { print ">>>".$_->[0],$/ } }; $_->() while $_; print Dumper \@l; Verbose fetch("http://google.com") ->fallthrough_report(1) ->report_links( qr(^http:) => _feedback, qr(google) => \my @l, qr(google) => sub { print ">>>".$_->[0],$/ } ); fetch while has_more_urls; print Dumper \@l; Extraction Extract data from CPAN url("http://search.cpan.org/recent")->(); submit_form( form_name => "f", fields => { query => "perl" }); template("<!--item-->[% p %]<!--end item-->"); extract; print Dumper extresult; Extract data from CPAN after some HTML cleanup url("http://search.cpan.org/recent")->(); submit_form( form_name => "f", fields => { query => "perl" }); preproc(q(s/\A.+<!--results-->(.+)<!--end results-->.+\Z/$1/s)); print document->as_string; # print content to STDOUT template("<!--item-->[% p %]<!--end item-->"); extract; print Dumper extresult; HTML cleanup, extract data, and refine results url("http://search.cpan.org/recent")->(); submit_form( form_name => "f", fields => { query => "perl" }); preproc(q(s/\A.+<!--results-->(.+)<!--end results-->.+\Z/$1/s)); print $$_; # print content to STDOUT template("<!--item-->[% rec %]<!--end item-->"); extract; postproc(q($_->{rec} =~ s/<.+?>//g)); # Strip HTML tags print Dumper extresult; Use filtering syntax fetch("http://search.cpan.org/recent"); submit_form( form_name => "f", fields => { query => "perl" }); $_ | _doc_filter(q(s/\A.+<!--results-->(.+)<!--end results-->.+\Z/$1/s)) | _template("<!--item-->[% rec %]<!--end item-->") | _result_filter(q($_->{rec} =~ s/<.+?>//g)); print Dumper \@$_; Preprocess document url("google.com")->() | _preproc(use => "html_to_null") | _preproc(use => "decode_entities") | _print; Postprocess extraction results fetch("http://search.cpan.org/recent"); submit_form( form_name => "f", fields => { query => "perl" }); $_ | _doc_filter(q(s/\A.+<!--results-->(.+)<!--end results-->.+\Z/$1/s)) | _template("<!--item-->[% rec %]<!--end item-->") | _result_filter(use => "html_to_null", qw(rec)); | _result_filter(use => "decode_entities", qw(rec)) print Dumper \@$_; AUTHOR & COPYRIGHT Copyright (C) 2006 by Yung-chung Lin (a.k.a. xern) <[email protected]> This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself
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