http://qs321.pair.com?node_id=230048
Category: Web Stuff
Author/Contact Info John J Reiser http://www.newrisedesigns.com
Description: This code (used in conjunction with Apache SSI) will display a link within a page to the most recently updated topic in your YaBB forum. See http://www.yabbforum.com for information and source to the YaBB message board. 
#!/usr/bin/perl -w

use strict;
use HTTP::Date;

print "Content-type: text/html\n\n";

my %ref;

my $boarddir = './yabb/Boards';
my $boardurl = '/cgi-bin/yabb/YaBB.pl';

opendir(my $dir, $boarddir) or die("Cannot open Boards directory $!");
my @files = grep(/\.txt\Z/, readdir($dir));
closedir($dir);

my @months = qw( Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec );

my $file;
my $time;
foreach $file (@files){
    open(my $fh, "$boarddir/$file") or die("Cannot open File $!");
    flock($fh, 4);
    
    while(<$fh>){
        my ($id, $name, $user, $email, $datetime) = split(/\|/, $_);
        if($datetime =~ m#(\d+)/(\d+)/(\d+) at (\d\d:\d\d:\d\d)#){
            my $num = $1;
            $num--;
            my $month = $months[$num];
            $time = "$2 $month $3 $4 GMT";
            $datetime = str2time($time);
            my $board;
            if($file =~ /(\w+)\./){
                $board = $1;
            }
            $ref{$datetime} = ({
                'time' => $time,
                'num' => $id,
                'board' => $board,
                'description' => $name,
                });
        }
    }
    close($fh);
}

foreach(sort {$b <=> $a} keys %ref){
    my %link = %{ $ref{$_} };

    print qq[<div id="lastmbpost"><a href="$boardurl?board=$link{board
+};action=display;num=$link{num};start=1">$link{description}</a><br />
+was updated on $link{time}</div>];

    last;
}
Replies are listed 'Best First'.
Re: Display most recent post to a YaBB forum
by Aristotle (Chancellor) on Jan 26, 2003 at 23:10 UTC 
    #!/usr/bin/perl -w
use strict;
use Fcntl qw(:flock);

use constant MONTHS => qw(
    Jan Feb Mar Apr May Jun
    Jul Aug Sep Oct Nov Dec
);

use constant DATE_RX => qr#(\d+)/(\d+)/(\d+) at (\d\d:\d\d:\d\d)#;

print "Content-type: text/html\n\n";

my $boarddir = './yabb/Boards';
my $boardurl = '/cgi-bin/yabb/YaBB.pl';

chdir $boarddir
    or die "Cannot chdir to $boarddir: $!";

my @files = do {
    opendir my $dir, "."
        or die ("Cannot open Boards directory $!");
    grep /\.txt\z/, readdir $dir;
};

sub parse_time {
    require HTTP::Date;
    return unless @_ == 4;
    my $time = "$_[1] ".(MONTHS)[$_[0]-1]." $_[2] $_[3] GMT";
    return ($time, HTTP::Date::str2time($time));
}

my @data;

for my $file (@files) {
    open my $fh, "<", $file
        or die "Cannot open file $file: $!";

    flock $fh, LOCK_SH;

    my ($board) = $file =~ /(\w+)\./;

    while (<$fh>) {
        my ($id, $name, $user, $email, $datetime) = split /\|/;
        my ($time, $utime) = parse_date($datetime =~ DATE_RX);
        push @data, [ $utime, $board, $id, $name, $time ]
            if defined $utime;
    }
}

my @link = @{ sort { $a->[0] <=> $b->[0] } @data)[0] || [] };

printf
    qq{<div id="lastmbpost"><a href="%s?board=%d;action=display;num=%d
+;start=1">%s</a><br />was updated on %s</div>},
    $boardurl, @link[1..4];

    [download]
    Untested.

    Makeshifts last the longest.

[reply]
[d/l]

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