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1.2. Notational Conventions

The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in [RFC2119].

The Augmented BNF (ABNF) syntax used by this document to specify the format definition of new iCalendar elements is defined in [RFC5234].

The ABNF syntax used by this document to specify the format definition of new message header fields to be used with the HTTP/1.1 protocol is described in Section 2.1 of [RFC2616]. Since this Augmented BNF uses the basic production rules provided in Section 2.2 of [RFC2616], these rules apply to this document as well.

The term "protected" is used in the Conformance field of WebDAV property definitions as defined in Section 15 of [RFC4918].

Calendaring and scheduling roles are referred to in quoted-strings of text with the first character of each word in uppercase. For example, "Organizer" refers to a role of a calendar user within the scheduling protocol defined by [RFC5546].

This document was automatically converted to XHTML using an RFC to HTML converter with the original text document at the Internet Engineering Task Force web site at ietf.org .  The original text document should be referred to if there are any errors or discrepancies found in this document.

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