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fixed installer, on newer perls NOTEDB/* is being ignored
This commit is contained in:
Thomas von Dein
269
lib/NOTEDB/dbm.pm
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269
lib/NOTEDB/dbm.pm
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@@ -0,0 +1,269 @@
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#!/usr/bin/perl
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# $Id: dbm.pm,v 1.3 2000/08/11 00:05:58 zarahg Exp $
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# Perl module for note
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# DBM database backend. see docu: perldoc NOTEDB::dbm
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#
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package NOTEDB::dbm;
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$NOTEDB::dbm::VERSION = "1.41";
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use DB_File;
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use NOTEDB;
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use strict;
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use Exporter ();
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use vars qw(@ISA @EXPORT %note %date);
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@ISA = qw(NOTEDB Exporter);
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sub new
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{
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my($this, %param) = @_;
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my $class = ref($this) || $this;
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my $self = {};
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bless($self,$class);
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my $notefile = "note.dbm";
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my $timefile = "date.dbm";
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my $dbm_dir = $self->{dbname} = $param{dbname} || File::Spec->catfile($ENV{HOME}, ".note_dbm");
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if (! -d $dbm_dir) {
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# try to make it
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mkdir $dbm_dir || die "Could not create $dbm_dir: $!\n";
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}
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tie %note, "DB_File", "$dbm_dir/$notefile" || die "Could not tie $dbm_dir/$notefile: $!\n";
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tie %date, "DB_File", "$dbm_dir/$timefile" || die "Could not tie $dbm_dir/$timefile: $!\n";
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$self->{LOCKFILE} = $param{dbname} . "~LOCK";
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return $self;
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}
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sub DESTROY
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{
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# clean the desk!
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untie %note, %date;
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}
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sub version {
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my $this = shift;
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return $this->{version};
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}
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sub get_single
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{
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my($this, $num) = @_;
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my($note, $date);
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return $this->ude ($note{$num}), $this->ude($date{$num});
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}
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sub get_all
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{
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my $this = shift;
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my($num, $note, $date, %res, $real);
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foreach $num (sort {$a <=> $b} keys %date) {
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$res{$num}->{'note'} = $this->ude($note{$num});
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$res{$num}->{'date'} = $this->ude($date{$num});
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}
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return %res;
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}
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sub import_data {
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my ($this, $data) = @_;
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foreach my $num (keys %{$data}) {
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my $pos = $this->get_nextnum();
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$note{$pos} = $this->ude($note{$num}->{note});
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$date{$pos} = $this->ude($date{$num}->{date});
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}
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}
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sub get_nextnum
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{
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my($this, $num);
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foreach (sort {$a <=> $b} keys %date) {
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$num = $_;
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}
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$num++;
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return $num;
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}
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sub get_search
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{
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my($this, $searchstring) = @_;
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my($num, $note, $date, %res, $match);
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my $regex = $this->generate_search($searchstring);
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eval $regex;
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if ($@) {
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print "invalid expression: \"$searchstring\"!\n";
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return;
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}
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$match = 0;
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foreach $num (sort {$a <=> $b} keys %date) {
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$_ = $this->ude($note{$num});
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eval $regex;
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if ($match) {
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$res{$num}->{'note'} = $this->ude($note{$num});
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$res{$num}->{'date'} = $this->ude($date{$num});
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}
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$match = 0;
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}
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return %res;
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}
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sub set_recountnums
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{
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my $this = shift;
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my(%Note, %Date, $num, $setnum);
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$setnum = 1;
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foreach $num (sort {$a <=> $b} keys %note) {
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$Note{$setnum} = $note{$num};
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$Date{$setnum} = $date{$num};
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$setnum++;
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}
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%note = %Note;
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%date = %Date;
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}
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sub set_edit
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{
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my($this, $num, $note, $date) = @_;
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$note{$num} = $this->uen($note);
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$date{$num} = $this->uen($date);
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}
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sub set_new
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{
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my($this, $num, $note, $date) = @_;
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$this->set_edit($num, $note, $date); # just the same thing
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}
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sub set_del
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{
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my($this, $num) = @_;
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my($note, $date, $T);
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($note, $date) = $this->get_single($num);
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return "ERROR" if ($date !~ /^\d/);
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delete $note{$num};
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delete $date{$num};
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}
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sub set_del_all
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{
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my($this) = @_;
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%note = ();
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%date = ();
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return;
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}
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sub uen
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{
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my $this = shift;
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my($T);
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if($NOTEDB::crypt_supported == 1) {
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eval {
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$T = pack("u", $this->{cipher}->encrypt($_[0]));
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};
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}
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else {
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$T = $_[0];
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}
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chomp $T;
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return $T;
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}
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sub ude
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{
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my $this = shift;
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my($T);
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if($NOTEDB::crypt_supported == 1) {
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eval {
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$T = $this->{cipher}->decrypt(unpack("u",$_[0]))
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};
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return $T;
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}
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else {
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return $_[0];
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}
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}
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1; # keep this!
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__END__
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=head1 NAME
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NOTEDB::dbm - module lib for accessing a notedb from perl
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=head1 SYNOPSIS
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# include the module
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use NOTEDB;
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# create a new NOTEDB object (the last 4 params are db table/field names)
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$db = new NOTEDB("mysql","note","/home/user/.notedb/");
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# get a single note
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($note, $date) = $db->get_single(1);
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# search for a certain note
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%matching_notes = $db->get_search("somewhat");
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# format of returned hash:
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#$matching_notes{$numberofnote}->{'note' => 'something', 'date' => '23.12.2000 10:33:02'}
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# get all existing notes
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%all_notes = $db->get_all();
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# format of returnes hash like the one from get_search above
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# get the next noteid available
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$next_num = $db->get_nextnum();
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# recount all noteids starting by 1 (usefull after deleting one!)
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$db->set_recountnums();
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# modify a certain note
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$db->set_edit(1, "any text", "23.12.2000 10:33:02");
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# create a new note
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$db->set_new(5, "any new text", "23.12.2000 10:33:02");
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# delete a certain note
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$db->set_del(5);
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=head1 DESCRIPTION
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You can use this module for accessing a note database. This is the dbm module.
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It uses the DB_FILE module to store it's data and it uses DBM files for tis purpose.
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Currently, NOTEDB module is only used by note itself. But feel free to use it
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within your own project! Perhaps someone want to implement a webinterface to
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note...
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=head1 USAGE
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please see the section SYNOPSIS, it says it all.
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=head1 AUTHOR
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Thomas Linden <tom@daemon.de>.
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=cut
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