+#!/bin/zsh
+
+# Copyright 2014, 2015 Paul Hänsch
+#
+# This file is part of Confetti.
+#
+# Confetti 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.
+#
+# Confetti 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 Confetti. If not, see <http://www.gnu.org/licenses/>.
+
+[ -z "${_GET[order]}" ] && _GET[order]="firstname"
+
+listcourses() {
+ ls -1 ${_DATA}/ical/*ics |while read file; do
+ icstime="$(sed -rn 's:^DTSTART\:(TZID=.*\:)?([0-9]{4})([0-9]{2})([0-9]{2})T([0-9]{2})([0-9]{2})([0-9]{2})Z?\r$:\2-\3-\4 \5\:\6\:\7:p' "$file")"
+ echo "$(date -d "$icstime" "+%u %H%M%S")\t$file"
+ done |sort |sed -r 's:^.*\t(.*/)([^/]+)$:\2:'
+}