Last Update: Thu Aug 14 22:54:08 -0700 2008

0.657 - 2008-08-14

  • Date#to_time renamed to Date#vpim_to_time. Apparently Rails also patches the core.
  • Debian doesn‘t like RFCs. I think there is a problem with the DFG, not the IETF. The value of a standard is that it can‘t be modified (if anybody could publish a modified version of an RFC without restriction chaos would ensue). Still, we lost that argument, and I‘ll try and help packagers out.
  • View, gives various views of calendars. Experimental.
  • Fixed doc comment refs to common Property module.
  • Vtodo#duration and due now work correctly (the missing one will be calculated from the other).
  • Vevent::Maker#add_rrule, set_rrule are new, using Rrule::Maker.
  • There is now (half-of) an Rrule::Maker class to help construct RRULE values.
  • Vjournal can be encoded now (it was broken).
  • Better code coverage by the tests.
  • Recurrence#occurrences now returns an Enumerator instead of an Rrule. Both have each, and both yield the same thing, so that isn‘t an API change. However, Rrule had an each_until, and the Enumerator doesn‘t. Use the dountil argument to occurrences to get the same effect. The asymetry of this API caused me (non-aesthetic) trouble, now Rrule is an internal implementation detail. Also, this would have had to change eventually, because occurrences need to be the union of multiple RRULE and RDATE fields.
  • Recurrence#rrule, returns an Rrule for the first RRULE field. Can be used as transition.
  • Icalendar#calscale was broken, and is now unit tested, along with version and protocol?.
  • Icalendar#{each,events,todos,journals} all yield components, or return an enumerator.
  • Icalendar is enumerable.
  • Repo and Repo::Calendar are enumerable.
  • occurrences will call Rrule#each if a block is provided
  • Recurrence rules with DTSTART in UTC will now sortof work (thanks to Max Werner for providing the patch).
  • Added convenience methods for setting and getting title and org fiels (thanks to Jade Meskill for providing the patch).
  • Modified Icalendar#create2 so only prodid can be supplied and cal is yielded so events/etc. can be pushed.
  • Support‘s broken google talk field (see test_vcard.rb for examples, thanks to Terry Tong for reporting).

0.619 - 2008-03-30

  • Fixed some problems with rescue statements not being specific enough.
  • Vcard#birthday may now return a DateTime.
  • Added Vcard#urls
  • Fixed a mispelled Uri in Vcard#url
  • Global fix of misspellings of "occurrence"
  • KAddressBook compatibility fix - allow / in field names, even though it is illegal in vCard 3.0.

0.604 - 2008-03-13

  • Fixed a bug with lower-case UTF-16 encoded cards not being detected properly.
  • Skip over invalidly encoded vCard fields when enumerating them.

0.602 - 2008-03-12

  • Updated reminder utility to work with iCal 3.
  • Reworked gem to include tests, samples, and binaries.

0.597 - 2008-03-01

  • Support for BYSETPOS in recurrence rules (development supported by
  • Support for FREQ=weekly in recurrence rules (development supported by
  • Fixed an encode_text() bug (patch supplied by Jan Becvar)
  • Fixed problem with interaction between BYMONTH and BYDAY (patch supplied by Sam Stephenson of
  • Vevent::Maker - Started adding high-level iCalendar encoding APIs
  • Vpim::Vcard::Maker - the vCard maker is moved here
  • Vpim::Maker - deprecated
  • Vcard::make, Maker::Vcard#delete_if - new
  • Vcard::Maker#add_name - deprecate, see Vcard::Maker#name
  • Vcard::Maker#fullname= - deprecate, see Vcard::Maker#name
  • Added high-level vCard decoding API.
  • Beginning to depend on ruby1.8. I‘m willing to try for backwards compat if I get feedback that this causes difficulties.
  • Icalendar#components - new
  • Icalendar#vevents - deprecated, see Icalendar#components
  • split Vtodo and Vjournal into own files
  • Added Recurrence module to Vtodo and Vjournal
  • Property::Common#sequence - new
  • Property::Common#attachments - new
  • Icalendar::Attachment - new
  • Maker::Vcard#add_url - new
  • ex_mkyourown.rb - new example
  • Modularized the component property accessor methods, and added lots of Icalendar property support for Vevent, Vtodo, and Vjournal.
  • Fixed support for TEXT decoding.
  • Use Subversion revision as release sub-version.
  • It appears that a top-level vpim.rb that requires everything else is needed for ruby-gems, gemspec seems to work now.
  • Don‘t package backup files (…/*.rb~).
  • Icalendar decoding optimizations. Icalendar.decode is about twice as fast now, and more optimizations are scheduled.
  • Continue the move to using uppercase for all syntactic elements that can be mixed case. The API might eventually allow only uppercase, it appears case-insensitive comparisons still have a noticeable effect on performance.

0.17 - 2006-03-08

  • DirectoryInfo#delete - new
  • Maker::Vcard#fullname - new
  • Provide an example of how to create, copy, and modify version 2.1 vCards.
  • Maker::Vcard.make2 - new
  • Maker::Vcard.make - deprecated
  • Profiled decoding of a huge iCalendar file. Performance appears to be dominated by overhead of String#downcase (20% of time spent in Field#name?). Keeping the field group, field name, and field‘s parameter‘s names internally in uppercase and using ruby 1.8‘s String#casecmp? is a first attempt at optimization. This is a change in the default case returned, but it aligns with the RFC and common usage.
  • Maker::Vcard.make - full_name is now optional, it will be derived from name/N:
  • Maker::Vcard#add_field - better argument checking
  • Maker::Vcard#copy - new
  • Vcard#[] - now limits return to fields with values
  • Vcard#name - new
  • Vcard::Name - new
  • Vcard#nicknames - new
  • Field#params and Field#param - deprecated and undocumented, I could never remember the difference
  • Field#pnames - new
  • Field#pvalues - new
  • Methods.casecmp? - new
  • Field#pref= - new
  • Field#pvalue_idel - new
  • Field#pvalue_iadd - new

0.16 - 2006-02-19

  • Packaged in gem format, experimental.
  • Read vCards in UTF-8 or UTF-16, big or little endian, with or without a byte order mark (BOM).
  • Fixed bug with rrule occurences containing the end of the interval. Reported with patch by Brad Ediger.

0.15 - 2005-07-29

  • Fixed bug with param values with quoted strings, particularly a quoted string containing a : character, like

    Thanks to Tamiji Homma for reporting this and sending me an example calendar.

  • Vtodo.create - new
  • Icalendar#push - allow Vtodos to be added

    Thanks to Maximillian Dornseif for contributing the above two Vtodo patches.

  • Vevent.duration - bug fixes so duration can be calculated from begin/end, and end can be calculated from begin/duration
  • Vcard#nickname that strips whitespace to see if there really is a nickname
  • Vcard#birthday - returns birthday as a date
  • Vevent#create_yearly - easy, cheesy way to create yearly recurring events
  • vcf-to-ics.rb: example of how to create calendars of bdays from vcards
  • Icalendar.create() like Vevent.create(), it will take arrays of Fields, or Hashes of String => value.
  • maker/vcard.rb: Added support for X-AIM, an Apple extension.

0.14 - 2005-02-01

  • Fix: if an RRULE didn‘t ever yield an event (a bug in the rule) dountil was never tested.
  • Change: don‘t throw an ArgumentError with infinite events, just stop when the Time is no longer representable

0.13 - 2005-01-20

  • Was calling to_time with an arg, fixed.

0.12 - 2005-01-17

  • Removed require of pp from the library and utilities where it wasn‘t needed, it was causing problems because it doesn‘t exist on ruby 1.6 systems.
  • Added Field#to_date, returns field value as an array of Date objects
  • Changed Field#to_time - it now auto-detects format of values (DATE/DATE-TIME), and doesn‘t take/require a default_kind argument.
  • Added IMPP support to Vpim::Maker::Vcard.
  • Makefile wasn‘t copying the Maker classes into the release.
  • Duration value not returned unless it was negative, fixed.
  • An RRULE‘s UNTIL was always being assumed to be a DATE-TIME, but it can be a DATE. I fixed this, but is something of a hack, see comments and TODO.
  • Use String#scan instead of String#gsub, when appropriate (I didn‘t know it existed when I stated the project).
  • Run tests on 3 ruby versions.
  • Don‘t include docs in release package, it makes it way too large.
  • Change: use String.unpack instead of iconv to convert UCS-2 to UTF-8, removing dependency on iconv (it wasn‘t standard in ruby 1.6).
  • Change: simplified mutt_ab_query.rb, and renamed to vcf-to-mutt.
  • Change: reminder.rb sorts todo items by priority.
  • New: Vtodo#priority - the priority of the vTodo component.

0.11 - 2004-11-17

  • Added a Vpim::Maker::Vcard class to simplify the creation of vCards, modelled after the RSS maker from ruby‘s RSS library.

0.10 - 2004-11-07

  • If events don‘t have a recurrence rule, they occur once, but they were being returned even if they occurred after "dountil". Fixed.
  • New sample of converting tab-delimited files to a vcard file, from Dane G. Avilla. Thanks!

0.9a - 2004-10-31

  • Made sure all events occur once in rrules.
  • New sample of encoding: mutt-aliases-vcard.rb
  • Added ToDo support to reminder.rb.

0.9 - 2004-06-17

  • Field now is mutable, you can change the group, value, params, etc.
  • Using the Enumerator object for DirectoryInfo now, instead of all the

each_by_X, and field_by_X() APIs.

  • Moved homepage and docs to Ruby Forge.
  • DirectoryInfo.create: added a profile argument
  • DirectoryInfo#push: now pushes to 1 before the end
  • DirectoryInfo#push_end: pushes onto end, in case you really want to
  • Field.create: a Date or Time object value will now be encoded as date or time
  • Vpim.encode_date(): encodes an RFC2425 date
  • Vpim.encode_time(): encodes an RFC2425 time
  • Vpim.encode_date_time(): encodes an RFC2425 date-time
  • Icalendar#encode(): encodes an Icalendar
  • Icalendar#push(): pushes a calendar component onto a calendar
  • Vevent#accept(): accepts an event invitation
  • Vevent#create(): creates a new event
  • Address#copy(): create a copy of Address. If the original Address was frozen,

this one won‘t be.

  • Address#partstat=(): set or change the PARTSTAT.
  • Field#copy(): create a copy of Field. If the original Field was frozen, this

one won‘t be.

0.8 - 2004-04-01

  • Moved DirectoryInfo::Field into it‘s own file, vpim/field.rb.
  • New: Vpim::Duration - crude way of getting days/hours/mins/secs from a

duration in seconds.

  • New: Icalendar#create() and Icalendar#create_reply()
  • New: Icalendar#encode(), to_s is an alias to encode.
  • New: Icalendar#protocol?()
  • Change: Icalendar#version() raises an error if there is no VERSION
  • Change: made all the DirectoryInfo, Vcard, and Field .new() class methods

private, and replaced with the 2 class methods:

 - decode() decodes a string, returning a ruby object
 - create() creates a new object

and all objects now get encoded using:

 - encode() takes a ruby object, and encodes it as a string

They become more symetrical, and the overloaded meanings of .new() dissappear - with .new() are you decoding, encoding, creating…?

  • Change: Icalendar::Vevent#attendees() can return only attendees

with a particular URI.

  • New: Icalendar::Address#==()
  • New: Icalendar::Vevent#attendee?()
  • Fixed bug: Field#encode() was adding an unexpecte NL to the line.
  • Change: Field#name?() can accept a symbol.
  • New: DirectoryInfo has an each(), so I included Enumerable. Because of this

to_a() now returns all the Fields in a DirectoryInfo.

  • New: DirectoryInfo#push() and DirectoryInfo@push_uniq().
  • Change: DirectoryInfo#<<() is now an alias for DirectoryInfo#push()
  • Change: DirectoryInfo#each() and DirectoryInfo#each_by() now return self

instead of nil, I think this is more rubyish.

  • New: Date#to_time() - converts a Date, and maybe a DateTime, to a Time
  • New: Icalendar#protocol()
  • New: Icalendar::Address
  • New: Icalendar::Vevent#organizer()/attendees(), which return an


  • New: An array of all the values of fields named name, converted to text,

using Field.to_text().

0.7 - 2004-03-21

  • Bug fixes, not all files were requiring vpim.rb, which had the definition of

the invalid encoding error.

  • Implemented much requested feature: ignore empty lines in input. This is an

invalid encoding, but I‘m tired of fighting it.

0.6 - 2004-03-20

WARNING: major API renamings!

  • Replaced the Vpim::Errors::*Error exception classes with a single exception

class: Vpim::InvalidEncodingError. That, and a message, is all I really need. I don‘t think people need different classes for different types of encoding errors, either the library can decode it for them, or it can‘t.

  • Renamed project to "vpim" (to reflect vCard and vCalendar/iCalendar support),

renamed top-level Rfc2425 module to Vpim, split vard.rb into multiple files.

  • Add support for iCalendar (RFC2445), see vpim/icalendar.rb. Currently only

supports VEVENT, no VTODO or VALARM yet, but is useable to print my upcoming iCal events.

  • Implemented the iCalendar recurrence rules mini-language, which is possibly

of more general use than just for iCalendar.

  • Fixed bug in time decoding where usec would be nil instead of zero when no

usec were present in the time value.

  • Field#to_time now assumes that time is in local time, unless the timezone is

"Z", meaning UTC.

  • Field#to_text - new method, unescapes newlines, commas, and escape


  • Field#field(name) - new method, returns the first field named name.

0.5 - 3003-11-23

  • ab-query.rb - short option for —me was mistyped as -v, instead of -m.
  • mutt_ab_query.rb - added a —pipe option, so that the output of an other

script can be directly queried.

  • New method: Rfc2425.version
  • Decode vCard 2.1 abbreviated parameters (ones where the name of the parameter

is missing, only the value is present, which only works for type and encoding).

  • Vcard.decode() now support UCS-2 encoded vCards, by translating anything that

looks like UCS-2 to UTF-8 before decoding.

0.4 - 2003-04-14

  • More support for decoding date, time, and date-time values.
  • New method Field#to_time().
  • Can pass an IO object to decode APIs, its entire contents is read as a


  • Field#group?() now considers nil as equivalent to no group, so you can use

each_group(nil) to iterate through all fields without a group.

0.3 -

  • Added description of how to use mutt_ab_query.rb
  • Added support for querying the kind of a value, and began support for

decoding date and time values.

0.2 -

  • Supports encoding.
  • Supports accessing values using [].
  • No longer have methods return an Array, or nil if the array is zero length, I

just return an Array.

  • mutt_ab_query.rb - an example of using vcard.rb to do lookups in the OS X

Address Book from Mutt

0.1 -

  • First release.