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lukhnos :: Feb.25.2009 :: tekhnologia 技術或者藝術 :: 11 Comments »相信許多鐵道迷都聽過雪貂（Ferret）。雪貂是一套根據Lucene所開發的全文搜尋引擎。裝上了「化身為雪貂」（acts_as_ferret 輕量之人最愛的神秘一行 O’Reilly的Ferret
GENERIC_ANALYSIS_REGEX = /([a-zA-Z]|[\\xc0-\xdf][\\x80-\\xbf])+|[0-9]+|[\\xe0-\\xef][\\x80-\\xbf][\\x80-\\xbf]/ GENERIC_ANALYZER = Ferret::Analysis::RegExpAnalyzer.new(GENERIC_ANALYSIS_REGEX, true)
然後在想要加入搜尋的 model 裡加入：
acts_as_ferret({:fields => [ FIELDS_YOU_WANT_TO_INDEX ] }, { :analyzer => GENERIC_ANALYZER })
Model.find_by_contents("hola")
def test_token_stream(token_stream)
puts "Start | End | PosInc | Text"
while t = token_stream.next
puts "%5d |%4d |%5d | %s" % [t.start, t.end, t.pos_inc, t.text]
end
end
然後在irb中：
lukhnos :: May.17.2007 :: tekhnologia 技術或者藝術 :: 5 Comments »str = "Café Österreich 是一間開在仮想現実空間（サイバースペース）裡的咖啡店" test_token_stream(Ferret::Analysis::RegExpTokenizer.new(str, GENERIC_ANALYSIS_REGEX))
lukhnos :: Mar.09.2007 :: tekhnologia 技術或者藝術 :: 2 Comments »def disconnect! @connection.close rescue nil end
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<place id='1'>
<zh_name>漁人</zh_name>
<en_name>Yuren</en_name>
<lon>121˚ 32' 40"</lon>
<lat>22˚ 1' 5"</lat>
</place>
#!/usr/bin/perl -w use strict; use XML::Simple; my $filename=shift or die "Must specify a filename"; my $data=XMLin($filename);
sudo cpan install XML::SAX::Expat sudo cpan install XML::Simple
my $places=$data->{'place'};
for my $x (sort(keys(%$places))) {
my $d = $places->{$x};
print "INSERT INTO geoinfo (zh_name, en_name, lon, lat) VALUES (",
sqlquote($d->{zh_name}), ", ",
sqlquote($d->{en_name}), ", ",
sqlquote($d->{lon}), ", ",
sqlquote($d->{lat}), ");\\n";
}
sub sqlquote {
my $x=shift;
$x =~ s/\\'/\\'\\'/g;
return "'$x'";
}
print "CREATE TABLE geoinfo (zh_name, en_name, lon, lat);\\n"; print "CREATE INDEX idx_zh_name ON geoinfo (zh_name);\\n"; print "BEGIN;\\n";
並在最後加上
print "COMMIT;\\n";
./gendb.pl source.xml | sqlite3 geoinfo.db
lukhnos :: Jun.29.2006 :: tekhnologia 技術或者藝術 :: 11 Comments »