rfc2445.txt
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/ reltypeparam ; Relationship type / roleparam ; Participation role / rsvpparam ; RSVP expectation / sentbyparam ; Sent by / tzidparam ; Reference to time zone object / valuetypeparam ; Property value data type / ianaparam ; Some other IANA registered iCalendar parameter. / xparam ; A non-standard, experimental parameter. ianaparam = iana-token "=" param-value *("," param-value) xparam =x-name "=" param-value *("," param-value)4.2.1 Alternate Text Representation Parameter Name: ALTREP Purpose: To specify an alternate text representation for the property value. Format Definition: The property parameter is defined by the following notation:Dawson & Stenerson Standards Track [Page 18] RFC 2445 iCalendar November 1998 altrepparam = "ALTREP" "=" DQUOTE uri DQUOTE Description: The parameter specifies a URI that points to an alternate representation for a textual property value. A property specifying this parameter MUST also include a value that reflects the default representation of the text value. The individual URI parameter values MUST each be specified in a quoted-string. Example: DESCRIPTION;ALTREP="CID:<part3.msg.970415T083000@host.com>":Project XYZ Review Meeting will include the following agenda items: (a) Market Overview, (b) Finances, (c) Project Management The "ALTREP" property parameter value might point to a "text/html" content portion. Content-Type:text/html Content-Id:<part3.msg.970415T083000@host.com> <html><body> <p><b>Project XYZ Review Meeting</b> will include the following agenda items:<ol><li>Market Overview</li><li>Finances</li><li>Project Management</li></ol></p> </body></html>4.2.2 Common Name Parameter Name: CN Purpose: To specify the common name to be associated with the calendar user specified by the property. Format Definition: The property parameter is defined by the following notation: cnparam = "CN" "=" param-value Description: This parameter can be specified on properties with a CAL-ADDRESS value type. The parameter specifies the common name to be associated with the calendar user specified by the property. The parameter value is text. The parameter value can be used for display text to be associated with the calendar address specified by the property.Dawson & Stenerson Standards Track [Page 19] RFC 2445 iCalendar November 1998 Example: ORGANIZER;CN="John Smith":MAILTO:jsmith@host.com4.2.3 Calendar User Type Parameter Name: CUTYPE Purpose: To specify the type of calendar user specified by the property. Format Definition: The property parameter is defined by the following notation: cutypeparam = "CUTYPE" "=" ("INDIVIDUAL" ; An individual / "GROUP" ; A group of individuals / "RESOURCE" ; A physical resource / "ROOM" ; A room resource / "UNKNOWN" ; Otherwise not known / x-name ; Experimental type / iana-token) ; Other IANA registered ; type ; Default is INDIVIDUAL Description: This parameter can be specified on properties with a CAL-ADDRESS value type. The parameter identifies the type of calendar user specified by the property. If not specified on a property that allows this parameter, the default is INDIVIDUAL. Example: ATTENDEE;CUTYPE=GROUP:MAILTO:ietf-calsch@imc.org4.2.4 Delegators Parameter Name: DELEGATED-FROM Purpose: To specify the calendar users that have delegated their participation to the calendar user specified by the property. Format Definition: The property parameter is defined by the following notation: delfromparam = "DELEGATED-FROM" "=" DQUOTE cal-address DQUOTE *("," DQUOTE cal-address DQUOTE)Dawson & Stenerson Standards Track [Page 20] RFC 2445 iCalendar November 1998 Description: This parameter can be specified on properties with a CAL-ADDRESS value type. This parameter can be specified on a property that has a value type of calendar address. This parameter specifies those calendar uses that have delegated their participation in a group scheduled event or to-do to the calendar user specified by the property. The value MUST be a MAILTO URI as defined in [RFC 1738]. The individual calendar address parameter values MUST each be specified in a quoted-string. Example: ATTENDEE;DELEGATED-FROM="MAILTO:jsmith@host.com":MAILTO: jdoe@host.com4.2.5 Delegatees Parameter Name: DELEGATED-TO Purpose: To specify the calendar users to whom the calendar user specified by the property has delegated participation. Format Definition: The property parameter is defined by the following notation: deltoparam = "DELEGATED-TO" "=" DQUOTE cal-address DQUOTE *("," DQUOTE cal-address DQUOTE) Description: This parameter can be specified on properties with a CAL-ADDRESS value type. This parameter specifies those calendar users whom have been delegated participation in a group scheduled event or to-do by the calendar user specified by the property. The value MUST be a MAILTO URI as defined in [RFC 1738]. The individual calendar address parameter values MUST each be specified in a quoted-string. Example: ATTENDEE;DELEGATED-TO="MAILTO:jdoe@host.com","MAILTO:jqpublic@ host.com":MAILTO:jsmith@host.com4.2.6 Directory Entry Reference Parameter Name: DIR Purpose: To specify reference to a directory entry associated with the calendar user specified by the property. Format Definition: The property parameter is defined by the following notation:Dawson & Stenerson Standards Track [Page 21] RFC 2445 iCalendar November 1998 dirparam = "DIR" "=" DQUOTE uri DQUOTE Description: This parameter can be specified on properties with a CAL-ADDRESS value type. The parameter specifies a reference to the directory entry associated with the calendar user specified by the property. The parameter value is a URI. The individual URI parameter values MUST each be specified in a quoted-string. Example: ORGANIZER;DIR="ldap://host.com:6666/o=eDABC%20Industries,c=3DUS?? (cn=3DBJim%20Dolittle)":MAILTO:jimdo@host1.com4.2.7 Inline Encoding Parameter Name: ENCODING Purpose: To specify an alternate inline encoding for the property value. Format Definition: The property parameter is defined by the following notation: encodingparam = "ENCODING" "=" ("8BIT" ; "8bit" text encoding is defined in [RFC 2045] / "BASE64" ; "BASE64" binary encoding format is defined in [RFC 2045] / iana-token ; Some other IANA registered iCalendar encoding type / x-name) ; A non-standard, experimental encoding type Description: The property parameter identifies the inline encoding used in a property value. The default encoding is "8BIT", corresponding to a property value consisting of text. The "BASE64" encoding type corresponds to a property value encoded using the "BASE64" encoding defined in [RFC 2045]. If the value type parameter is ";VALUE=BINARY", then the inline encoding parameter MUST be specified with the value ";ENCODING=BASE64".Dawson & Stenerson Standards Track [Page 22] RFC 2445 iCalendar November 1998 Example: ATTACH;FMTYPE=IMAGE/JPEG;ENCODING=BASE64;VALUE=BINARY:MIICajC CAdOgAwIBAgICBEUwDQYJKoZIhvcNAQEEBQAwdzELMAkGA1UEBhMCVVMxLDA qBgNVBAoTI05ldHNjYXBlIENvbW11bmljYXRpb25zIENvcnBvcmF0aW9uMRw <...remainder of "BASE64" encoded binary data...>4.2.8 Format Type Parameter Name: FMTTYPE Purpose: To specify the content type of a referenced object. Format Definition: The property parameter is defined by the following notation: fmttypeparam = "FMTTYPE" "=" iana-token ; A IANA registered content type / x-name ; A non-standard content type Description: This parameter can be specified on properties that are used to reference an object. The parameter specifies the content type of the referenced object. For example, on the "ATTACH" property, a FTP type URI value does not, by itself, necessarily convey the type of content associated with the resource. The parameter value MUST be the TEXT for either an IANA registered content type or a non-standard content type. Example: ATTACH;FMTTYPE=application/binary:ftp://domain.com/pub/docs/ agenda.doc4.2.9 Free/Busy Time Type Parameter Name: FBTYPE Purpose: To specify the free or busy time type. Format Definition: The property parameter is defined by the following notation: fbtypeparam = "FBTYPE" "=" ("FREE" / "BUSY" / "BUSY-UNAVAILABLE" / "BUSY-TENTATIVE" / x-name ; Some experimental iCalendar data type. / iana-token)Dawson & Stenerson Standards Track [Page 23] RFC 2445 iCalendar November 1998 ; Some other IANA registered iCalendar data type. Description: The parameter specifies the free or busy time type. The value FREE indicates that the time interval is free for scheduling. The value BUSY indicates that the time interval is busy because one or more events have been scheduled for that interval. The value BUSY-UNAVAILABLE indicates that the time interval is busy and that the interval can not be scheduled. The value BUSY-TENTATIVE indicates that the time interval is busy because one or more events have been tentatively scheduled for that interval. If not specified on a property that allows this parameter, the default is BUSY. Example: The following is an example of this parameter on a FREEBUSY property.⌨️ 快捷键说明
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