Fri, 10 Apr 2026 17:02:34 +0000 https://bugs.horde.org/ticket/7758 iCalendar does not quote/parse parameters correctly Currently iCalendar.php fails to deal with parameter values which contain a ";" when importing data. As per RFC 2445 certain parameter values need to be quoted. Quoted parameters values are not recognized by iCalendar.php. When exporting data the parameters may not contain all possible characters (e.g. control characters would be invalid). In addition parameter values that contain a ";", ":", or "," need to be quoted. Another problem are two byte UTF-8 characters in parameter values: As far as I can tell RFC 2445 allows these in an unquoted form. Nevertheless Outlook seems to be unable to deal which unquoted parameter values when they contain such characters. See also https://www.intevation.de/roundup/kolab/issue3284 Our suggested solution is to also quote parameter values once there are two-byte characters in the string. Suggested patch attached. Fri, 05 Dec 2008 15:58:17 +0000 https://bugs.horde.org/ticket/7758#t51086 The parsing part sounds like a duplicate of bug #7031. Fri, 12 Dec 2008 17:35:46 +0000 https://bugs.horde.org/ticket/7758#t51212 I would say it is similar to bug #7031 but not a duplicate. Parsing colons is okay (probably as that bug got fixed) but the parsing problem reported here is about semicolons. Fri, 12 Dec 2008 21:27:14 +0000 https://bugs.horde.org/ticket/7758#t51220 Changes have been made in CVS for this ticket: http://cvs.horde.org/diff.php/framework/iCalendar/iCalendar.php?rt=horde&r1=1.158&r2=1.159&ty=u http://cvs.horde.org/co.php/framework/iCalendar/tests/quoted-params.phpt?rt=horde&r=1.1 http://cvs.horde.org/diff.php/horde/docs/CHANGES?rt=horde&r1=1.1223&r2=1.1224&ty=u Sun, 05 Apr 2009 21:14:21 +0000 https://bugs.horde.org/ticket/7758#t53525 Committed, thanks. Sun, 05 Apr 2009 21:14:31 +0000 https://bugs.horde.org/ticket/7758#t53526 Changes have been made in CVS for this ticket: http://cvs.horde.org/diff.php/framework/iCalendar/iCalendar.php?rt=horde&r1=1.57.4.74&r2=1.57.4.75&ty=u http://cvs.horde.org/co.php/framework/iCalendar/tests/quoted-params.phpt?rt=horde&r=1.1.2.1 http://cvs.horde.org/diff.php/horde/docs/CHANGES?rt=horde&r1=1.515.2.523&r2=1.515.2.524&ty=u Sun, 05 Apr 2009 21:37:36 +0000 https://bugs.horde.org/ticket/7758#t53530