Actually commit the capacity string parser

diff --git a/yarrg/web/check_capacitystring b/yarrg/web/check_capacitystring
new file mode 100644 (file)
index 0000000..088c6c5
--- /dev/null
+++ b/yarrg/web/check_capacitystring
@@ -0,0 +1,88 @@
+<%doc>
+
+ This is part of the YARRG website.  YARRG is a tool and website
+ for assisting players of Yohoho Puzzle Pirates.
+
+ Copyright (C) 2009 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ Copyright (C) 2009 Clare Boothby
+
+  YARRG's client code etc. is covered by the ordinary GNU GPL (v3 or later).
+  The YARRG website is covered by the GNU Affero GPL v3 or later, which
+   basically means that every installation of the website will let you
+   download the source.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Affero 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 Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+ Yohoho and Puzzle Pirates are probably trademarks of Three Rings and
+ are used without permission.  This program is not endorsed or
+ sponsored by Three Rings.
+
+
+ This Mason component simply defines how to interpret capacities.
+
+</%doc>
+
+<%attr>
+</%attr>
+
+<%method preparse>
+<%args>
+$h
+</%args>
+<%perl>
+
+my $def= sub {
+       my ($what,$val) = @_;
+       if (defined $h->{$what}) {
+               $h->{Emsg}= "Multiple definitions of maximum $what.";
+       }
+       print STDERR "SET $what $val\n";
+       $h->{$what}= $val;
+};
+
+foreach $_ (split /\s+/, ${ $h->{String} }) {
+       print STDERR "ITEM \`$_'\n";
+       next unless length;
+       if (m/^([1-9]\d{0,8})l$/) {
+               $def->('volume', $1);
+       } elsif (m/^([1-9]\d{0,8})kg$/) {
+               $def->('mass', $1);
+       } elsif (m/^([1-9]\d{0,5}(?:\.\d{0,3})?)kl/) {
+               $def->('volume', $1 * 1000);
+       } elsif (m/^([1-9]\d{0,5}(?:\.\d{0,3})?)t/) {
+               $def->('mass', $1 * 1000);
+       } else {
+               $h->{Emsg}= "Cannot understand capacity \`$_'.";
+               last;
+       }
+}
+</%perl>
+</%method>
+
+<%method postquery>
+<%args>
+$h
+</%args>
+<%perl>
+
+if (defined $h->{'mass'} or defined $h->{'volume'}) {
+       @{ $h->{Results} } = [ $h->{'mass'}, $h->{'volume'} ];
+
+       ${ $h->{Canon} }=
+ 'mass limit: '.(defined $h->{'mass'} ? $h->{'mass'} .'kg' : 'none').'; '.
+ 'volume limit: '.(defined $h->{'volume'} ? $h->{'volume'} .'l' : 'none').'.';
+}
+
+</%perl>
+</%method>