# Copyright (C) 2006 Brock Wilcox <awwaiid@thelackthereof.org>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

use strict;
use v5.10;

AddModuleDescription('searchtags.pl', 'SearchTags Extension');

our (@MyRules);

push(@MyRules, \&SearchTagRule);

sub SearchTagRule {
  if (m/\GTags:\s*(.+)/cg) {
    my $tag_text = $1;
    my @tags = split /,\s*/, $tag_text;
    @tags = map {
      my $name = $_;
      my $encoded = $name;
      $encoded =~ s/ +/\\s+/g;
      $encoded = UrlEncode($encoded);
      ScriptLink("search=Tags:\\s*($encoded|.*,\\s*$encoded)(,|\\n)", $name);
    } @tags;
    my $tags = join ', ', @tags;
    return CloseHtmlEnvironments()
      . "<div class=\"taglist\">Tags: $tags</div>"
      . AddHtmlEnvironment('p');
  }
  return;
}