3 # search_packages.pl -- CGI interface to the Packages files on packages.debian.org
5 # Copyright (C) 1998 James Treacy
6 # Copyright (C) 2000, 2001 Josip Rodin
7 # Copyright (C) 2001 Adam Heath
8 # Copyright (C) 2004 Martin Schulze
9 # Copyright (C) 2004-2006 Frank Lichtenheld
11 # use is allowed under the terms of the GNU Public License (GPL)
12 # see http://www.fsf.org/copyleft/gpl.html for a copy of the license
19 print "Extremely blunt ends-with search results:<br><pre>";
20 # only thing implemented yet: ends-with search
21 my $kw = lc $cgi->param("keywords");
22 # full filename search is tricky
23 my $ffn = $cgi->param("fullfilename");
27 my $suite = 'stable'; #fixme
29 # fixme: I should open $reverses only once per search
30 my $reverses = tie my %reverses, 'DB_File', "$DBDIR/contents/reverse_$suite.db",
31 O_RDONLY, 0666, $DB_BTREE
32 or die "Failed opening reverse DB: $!";
35 open FILENAMES, "$DBDIR/contents/filenames_$suite.txt"
36 or die "Failed opening filename table";
38 next if index($_, $kw)<0;
40 last unless &dosearch(reverse($_)."/", \$nres, $reverses);
47 # exact filename searching follows trivially:
48 my $exact = $cgi->param("exact");
49 $kw = "$kw/" if $exact;
51 print "ERROR: Exact and fullfilenamesearch don't go along" if $ffn and $exact;
53 &dosearch($kw, \$nres, $reverses);
55 print "</pre>$nres results displayed";
63 my ($kw, $nres, $reverses) = @_;
65 my ($key, $rest) = ($kw, "");
66 for (my $status = $reverses->seq($key, $value, R_CURSOR);
68 $status = $reverses->seq( $key, $value, R_NEXT)) {
70 # FIXME: what's the most efficient "is prefix of" thingy? We only want to know
71 # whether $kw is or is not a prefix of $key
72 last unless index($key, $kw) == 0;
74 @hits = split /\0/o, $value;
75 print reverse($key)." is found in @hits\n";
76 last if ($$nres)++ > 100;