remmy.pl - A script to convert reminder type files into iCalendar format
remmy.pl < reminderfile > icsfile
This single Perl script convert reminders as used by Dianne Skoll's powerful command line program remind to the iCalendar format (.ics). iCalendar is a widely accepted standard for calendar entries and can be read by popular application like Microsoft's Outlook, Apple's iCal or Google Calendar. remmy.pl parses reminds input file and tries to adopt many of the sophisticated rules for reminders as implemented in remind.
remmy.pl solely relies on Perl, an installation of remind is not necessary.
Note that this script is neither a replacement nor an improvement of remind, in fact, it handles only a very limited subset of remind specification for parsing reminder-type input files.
While remmy is build with reference to RFC2445, full compliance cannot be ensured.
not in use
- Perl UUID::Tiny
- Perl DateTime
The man page of remind lists several examples using the REM command. Currently, remmy supports examples 1 to 18 as given in subsection INTERPRETATION OF DATE SPECIFICATIONS. The output of remmy has been successfully tested with MS Outlook 2003 and Apple iCal 4.0.
remmy supports the local time. It is planned to switch to UTC calendar specification in a future version.
The rule "weekday and day" present is limited in a way that there are no "jumps" to the following month if the next weekday is in the next month. This leads to the functionality that the specified day clusters the rule into the 4 weeks of a month, meaning the rule will always be the 1st, 2nd, 3rd or 4th weekday of every month.
Inspired from remind's man page, some test cases have been defined in
the file testreminders. The output from remmy is in
okreminders.ics. Each calender event should work as specified and
expected. It was not tested with all calender application.
A quick test for the output:
diff -I ORGANIZER -I UID -I DTSTAMP okreminders.ics <(cat testreminders|./remmy.pl)
Please report bugs to the author or improve the code by yourself and share the changes. You are encouraged to test remmys output with your preferred calendar application.
https://github.com/smartmic/remmy.git
Copyright (c) 2012 by Martin Michel
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
The remind manual.
The RFC2445 specification.
Mark Atwood has written a similar programm which uses the output of the remind -s command. See rem2ics.