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#!/usr/bin/perl
# vcalendar-filter is a simple filter to give plain text representations of vcards
# Copyright (C) 2008 Martyn Smith
#
# 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/>.
# This script takes a simple VCALENDAR file as input on STDIN and produces a
# human readable text/plain representation of it on STDOUT
#
# It has been designed for use with mutt's auto_view config option, see the
# README file for more details
use strict;
use warnings;
use Data::ICal;
use Text::Autoformat;
my $body = eval { local $/ = undef; <> };
my $calendar = Data::ICal->new(data => $body);
# If parsing failed, try parsing as version 1.0
$calendar = Data::ICal->new(data => $body, vcal10 => 1) unless $calendar;
# If parsing failed, give up :-(
unless ( $calendar ) {
print "Unable to parse vcalendar: ", $calendar->error_message, "\n";
print $body;
exit 1;
}
foreach my $entry ( @{$calendar->{entries}} ) {
my $properties;
foreach my $property ( keys %{$entry->properties} ) {
next unless defined $entry->property($property);
$properties->{$property} = join(', ', map { $_->decoded_value } @{$entry->property($property)});
if ( $property eq 'description' ) {
$properties->{$property} = "$properties->{$property}";
$properties->{$property} = autoformat $properties->{$property}, {
all => 1,
left => 15,
};
$properties->{$property} =~ s/^\s*// if defined $properties->{$property};
}
elsif ( $property =~ m{ \A dt (?: start | end ) \z }xms ) {
if ( $properties->{$property} =~ m{ (\d\d\d\d)(\d\d)(\d\d)T(\d\d)(\d\d)(\d\d) }xms ) {
$properties->{$property} = "$1-$2-$3 $4:$5";
}
}
}
if ( $entry->ical_entry_type eq 'VTIMEZONE' ) {
unless ( defined $properties->{tzid} and $properties->{tzid} =~ m{Pacific/Auckland} ) {
print "Timezone : ", $properties->{tzid}, "\n";
print "\n";
}
}
elsif ( $entry->ical_entry_type eq 'VEVENT' ) {
print '-' x 72, "\n";
foreach my $key ( qw(summary BR description BR location organizer dtstart dtend) ) {
if ( $key eq 'BR' ) {
print "\n";
next;
}
next unless defined $properties->{$key};
printf "%-12s: %s\n", ucfirst $key, $properties->{$key};
}
}
else {
print "WARNING: Unknown entry type: ", $entry->ical_entry_type, "\n";
}
}
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