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# RELAX NG Schema for iCalendar in XML
# Extract from RFC6321.
# Erratum 3042 applied.
# Erratum 3050 applied.
# Erratum 3314 applied.
default namespace = "urn:ietf:params:xml:ns:icalendar-2.0"
# 3.2 Property Parameters
# 3.2.1 Alternate Text Representation
altrepparam = element altrep {
value-uri
}
# 3.2.2 Common Name
cnparam = element cn {
value-text
}
# 3.2.3 Calendar User Type
cutypeparam = element cutype {
element text {
"INDIVIDUAL" |
"GROUP" |
"RESOURCE" |
"ROOM" |
"UNKNOWN"
}
}
# 3.2.4 Delegators
delfromparam = element delegated-from {
value-cal-address+
}
# 3.2.5 Delegatees
deltoparam = element delegated-to {
value-cal-address+
}
# 3.2.6 Directory Entry Reference
dirparam = element dir {
value-uri
}
# 3.2.7 Inline Encoding
encodingparam = element encoding {
element text {
"8BIT" |
"BASE64"
}
}
# 3.2.8 Format Type
fmttypeparam = element fmttype {
value-text
}
# 3.2.9 Free/Busy Time Type
fbtypeparam = element fbtype {
element text {
"FREE" |
"BUSY" |
"BUSY-UNAVAILABLE" |
"BUSY-TENTATIVE"
}
}
# 3.2.10 Language
languageparam = element language {
value-text
}
# 3.2.11 Group or List Membership
memberparam = element member {
value-cal-address+
}
# 3.2.12 Participation Status
partstatparam = element partstat {
type-partstat-event |
type-partstat-todo |
type-partstat-jour
}
type-partstat-event = (
element text {
"NEEDS-ACTION" |
"ACCEPTED" |
"DECLINED" |
"TENTATIVE" |
"DELEGATED"
}
)
type-partstat-todo = (
element text {
"NEEDS-ACTION" |
"ACCEPTED" |
"DECLINED" |
"TENTATIVE" |
"DELEGATED" |
"COMPLETED" |
"IN-PROCESS"
}
)
type-partstat-jour = (
element text {
"NEEDS-ACTION" |
"ACCEPTED" |
"DECLINED"
}
)
# 3.2.13 Recurrence Identifier Range
rangeparam = element range {
element text {
"THISANDFUTURE"
}
}
# 3.2.14 Alarm Trigger Relationship
trigrelparam = element related {
element text {
"START" |
"END"
}
}
# 3.2.15 Relationship Type
reltypeparam = element reltype {
element text {
"PARENT" |
"CHILD" |
"SIBLING"
}
}
# 3.2.16 Participation Role
roleparam = element role {
element text {
"CHAIR" |
"REQ-PARTICIPANT" |
"OPT-PARTICIPANT" |
"NON-PARTICIPANT"
}
}
# 3.2.17 RSVP Expectation
rsvpparam = element rsvp {
value-boolean
}
# 3.2.18 Sent By
sentbyparam = element sent-by {
value-cal-address
}
# 3.2.19 Time Zone Identifier
tzidparam = element tzid {
value-text
}
# 3.3 Property Value Data Types
# 3.3.1 BINARY
value-binary = element binary {
xsd:string
}
# 3.3.2 BOOLEAN
value-boolean = element boolean {
xsd:boolean
}
# 3.3.3 CAL-ADDRESS
value-cal-address = element cal-address {
xsd:anyURI
}
# 3.3.4 DATE
pattern-date = xsd:string {
pattern = "\d\d\d\d-\d\d-\d\d"
}
value-date = element date {
pattern-date
}
# 3.3.5 DATE-TIME
pattern-date-time = xsd:string {
pattern = "\d\d\d\d-\d\d-\d\dT\d\d:\d\d:\d\dZ?"
}
value-date-time = element date-time {
pattern-date-time
}
# 3.3.6 DURATION
pattern-duration = xsd:string {
pattern = "(+|-)?P(\d+W)|(\d+D)?"
~ "(T(\d+H(\d+M)?(\d+S)?)|"
~ "(\d+M(\d+S)?)|"
~ "(\d+S))?"
}
value-duration = element duration {
pattern-duration
}
# 3.3.7 FLOAT
value-float = element float {
xsd:float
}
# 3.3.8 INTEGER
value-integer = element integer {
xsd:integer
}
# 3.3.9 PERIOD
value-period = element period {
element start {
pattern-date-time
},
(
element end {
pattern-date-time
} |
element duration {
pattern-duration
}
)
}
# 3.3.10 RECUR
value-recur = element recur {
type-freq,
(type-until | type-count)?,
element interval {
xsd:positiveInteger
}?,
type-bysecond*,
type-byminute*,
type-byhour*,
type-byday*,
type-bymonthday*,
type-byyearday*,
type-byweekno*,
type-bymonth*,
type-bysetpos*,
element wkst { type-weekday }?
}
type-freq = element freq {
"SECONDLY" |
"MINUTELY" |
"HOURLY" |
"DAILY" |
"WEEKLY" |
"MONTHLY" |
"YEARLY"
}
type-until = element until {
type-date |
type-date-time
}
type-count = element count {
xsd:positiveInteger
}
type-bysecond = element bysecond {
xsd:nonNegativeInteger
}
type-byminute = element byminute {
xsd:nonNegativeInteger
}
type-byhour = element byhour {
xsd:nonNegativeInteger
}
type-weekday = (
"SU" |
"MO" |
"TU" |
"WE" |
"TH" |
"FR" |
"SA"
)
type-byday = element byday {
xsd:integer?,
type-weekday
}
type-bymonthday = element bymonthday {
xsd:integer
}
type-byyearday = element byyearday {
xsd:integer
}
type-byweekno = element byweekno {
xsd:integer
}
type-bymonth = element bymonth {
xsd:positiveInteger
}
type-bysetpos = element bysetpos {
xsd:integer
}
# 3.3.11 TEXT
value-text = element text {
xsd:string
}
# 3.3.12 TIME
pattern-time = xsd:string {
pattern = "\d\d:\d\d:\d\dZ?"
}
value-time = element time {
pattern-time
}
# 3.3.13 URI
value-uri = element uri {
xsd:anyURI
}
# 3.3.14 UTC-OFFSET
value-utc-offset = element utc-offset {
xsd:string { pattern = "(+|-)\d\d:\d\d(:\d\d)?" }
}
# UNKNOWN
value-unknown = element unknown {
xsd:string
}
# 3.4 iCalendar Stream
start = element icalendar {
vcalendar+
}
# 3.6 Calendar Components
vcalendar = element vcalendar {
type-calprops,
type-component
}
type-calprops = element properties {
property-prodid &
property-version &
property-calscale? &
property-method?
}
type-component = element components {
(
component-vevent |
component-vtodo |
component-vjournal |
component-vfreebusy |
component-vtimezone
)*
}
# 3.6.1 Event Component
component-vevent = element vevent {
type-eventprop,
element components {
component-valarm+
}?
}
type-eventprop = element properties {
property-dtstamp &
property-dtstart &
property-uid &
property-class? &
property-created? &
property-description? &
property-geo? &
property-last-mod? &
property-location? &
property-organizer? &
property-priority? &
property-seq? &
property-status-event? &
property-summary? &
property-transp? &
property-url? &
property-recurid? &
property-rrule? &
(property-dtend | property-duration)? &
property-attach* &
property-attendee* &
property-categories* &
property-comment* &
property-contact* &
property-exdate* &
property-rstatus* &
property-related* &
property-resources* &
property-rdate*
}
# 3.6.2 To-do Component
component-vtodo = element vtodo {
type-todoprop,
element components {
component-valarm+
}?
}
type-todoprop = element properties {
property-dtstamp &
property-uid &
property-class? &
property-completed? &
property-created? &
property-description? &
property-geo? &
property-last-mod? &
property-location? &
property-organizer? &
property-percent? &
property-priority? &
property-recurid? &
property-seq? &
property-status-todo? &
property-summary? &
property-url? &
property-rrule? &
(
(property-dtstart?, property-dtend? ) |
(property-dtstart, property-duration)?
) &
property-attach* &
property-attendee* &
property-categories* &
property-comment* &
property-contact* &
property-exdate* &
property-rstatus* &
property-related* &
property-resources* &
property-rdate*
}
# 3.6.3 Journal Component
component-vjournal = element vjournal {
type-jourprop
}
type-jourprop = element properties {
property-dtstamp &
property-uid &
property-class? &
property-created? &
property-dtstart? &
property-last-mod? &
property-organizer? &
property-recurid? &
property-seq? &
property-status-jour? &
property-summary? &
property-url? &
property-rrule? &
property-attach* &
property-attendee* &
property-categories* &
property-comment* &
property-contact* &
property-description? &
property-exdate* &
property-related* &
property-rdate* &
property-rstatus*
}
# 3.6.4 Free/Busy Component
component-vfreebusy = element vfreebusy {
type-fbprop
}
type-fbprop = element properties {
property-dtstamp &
property-uid &
property-contact? &
property-dtstart? &
property-dtend? &
property-duration? &
property-organizer? &
property-url? &
property-attendee* &
property-comment* &
property-freebusy* &
property-rstatus*
}
# 3.6.5 Time Zone Component
component-vtimezone = element vtimezone {
element properties {
property-tzid &
property-last-mod? &
property-tzurl?
},
element components {
(component-standard | component-daylight) &
component-standard* &
component-daylight*
}
}
component-standard = element standard {
type-tzprop
}
component-daylight = element daylight {
type-tzprop
}
type-tzprop = element properties {
property-dtstart &
property-tzoffsetto &
property-tzoffsetfrom &
property-rrule? &
property-comment* &
property-rdate* &
property-tzname*
}
# 3.6.6 Alarm Component
component-valarm = element valarm {
type-audioprop | type-dispprop | type-emailprop
}
type-audioprop = element properties {
property-action &
property-trigger &
(property-duration, property-repeat)? &
property-attach?
}
type-emailprop = element properties {
property-action &
property-description &
property-trigger &
property-summary &
property-attendee+ &
(property-duration, property-repeat)? &
property-attach*
}
type-dispprop = element properties {
property-action &
property-description &
property-trigger &
(property-duration, property-repeat)?
}
# 3.7 Calendar Properties
# 3.7.1 Calendar Scale
property-calscale = element calscale {
element parameters { empty }?,
element text { "GREGORIAN" }
}
# 3.7.2 Method
property-method = element method {
element parameters { empty }?,
value-text
}
# 3.7.3 Product Identifier
property-prodid = element prodid {
element parameters { empty }?,
value-text
}
# 3.7.4 Version
property-version = element version {
element parameters { empty }?,
element text { "2.0" }
}
# 3.8 Component Properties
# 3.8.1 Descriptive Component Properties
# 3.8.1.1 Attachment
property-attach = element attach {
element parameters {
fmttypeparam? &
encodingparam?
}?,
value-uri | value-binary
}
# 3.8.1.2 Categories
property-categories = element categories {
element parameters {
languageparam? &
}?,
value-text+
}
# 3.8.1.3 Classification
property-class = element class {
element parameters { empty }?,
element text {
"PUBLIC" |
"PRIVATE" |
"CONFIDENTIAL"
}
}
# 3.8.1.4 Comment
property-comment = element comment {
element parameters {
altrepparam? &
languageparam?
}?,
value-text
}
# 3.8.1.5 Description
property-description = element description {
element parameters {
altrepparam? &
languageparam?
}?,
value-text
}
# 3.8.1.6 Geographic Position
property-geo = element geo {
element parameters { empty }?,
element latitude { xsd:float },
element longitude { xsd:float }
}
# 3.8.1.7 Location
property-location = element location {
element parameters {
altrepparam? &
languageparam?
}?,
value-text
}
# 3.8.1.8 Percent Complete
property-percent = element percent-complete {
element parameters { empty }?,
value-integer
}
# 3.8.1.9 Priority
property-priority = element priority {
element parameters { empty }?,
value-integer
}
# 3.8.1.10 Resources
property-resources = element resources {
element parameters {
altrepparam? &
languageparam?
}?,
value-text+
}
# 3.8.1.11 Status
property-status-event = element status {
element parameters { empty }?,
element text {
"TENTATIVE" |
"CONFIRMED" |
"CANCELLED"
}
}
property-status-todo = element status {
element parameters { empty }?,
element text {
"NEEDS-ACTION" |
"COMPLETED" |
"IN-PROCESS" |
"CANCELLED"
}
}
property-status-jour = element status {
element parameters { empty }?,
element text {
"DRAFT" |
"FINAL" |
"CANCELLED"
}
}
# 3.8.1.12 Summary
property-summary = element summary {
element parameters {
altrepparam? &
languageparam?
}?,
value-text
}
# 3.8.2 Date and Time Component Properties
# 3.8.2.1 Date/Time Completed
property-completed = element completed {
element parameters { empty }?,
value-date-time
}
# 3.8.2.2 Date/Time End
property-dtend = element dtend {
element parameters {
tzidparam?
}?,
value-date-time |
value-date
}
# 3.8.2.3 Date/Time Due
property-due = element due {
element parameters {
tzidparam?
}?,
value-date-time |
value-date
}
# 3.8.2.4 Date/Time Start
property-dtstart = element dtstart {
element parameters {
tzidparam?
}?,
value-date-time |
value-date
}
# 3.8.2.5 Duration
property-duration = element duration {
element parameters { empty }?,
value-duration
}
# 3.8.2.6 Free/Busy Time
property-freebusy = element freebusy {
element parameters {
fbtypeparam?
}?,
value-period+
}
# 3.8.2.7 Time Transparency
property-transp = element transp {
element parameters { empty }?,
element text {
"OPAQUE" |
"TRANSPARENT"
}
}
# 3.8.3 Time Zone Component Properties
# 3.8.3.1 Time Zone Identifier
property-tzid = element tzid {
element parameters { empty }?,
value-text
}
# 3.8.3.2 Time Zone Name
property-tzname = element tzname {
element parameters {
languageparam?
}?,
value-text
}
# 3.8.3.3 Time Zone Offset From
property-tzoffsetfrom = element tzoffsetfrom {
element parameters { empty }?,
value-utc-offset
}
# 3.8.3.4 Time Zone Offset To
property-tzoffsetto = element tzoffsetto {
element parameters { empty }?,
value-utc-offset
}
# 3.8.3.5 Time Zone URL
property-tzurl = element tzurl {
element parameters { empty }?,
value-uri
}
# 3.8.4 Relationship Component Properties
# 3.8.4.1 Attendee
property-attendee = element attendee {
element parameters {
cutypeparam? &
memberparam? &
roleparam? &
partstatparam? &
rsvpparam? &
deltoparam? &
delfromparam? &
sentbyparam? &
cnparam? &
dirparam? &
languageparam?
}?,
value-cal-address
}
# 3.8.4.2 Contact
property-contact = element contact {
element parameters {
altrepparam? &
languageparam?
}?,
value-text
}
# 3.8.4.3 Organizer
property-organizer = element organizer {
element parameters {
cnparam? &
dirparam? &
sentbyparam? &
languageparam?
}?,
value-cal-address
}
# 3.8.4.4 Recurrence ID
property-recurid = element recurrence-id {
element parameters {
tzidparam? &
rangeparam?
}?,
value-date-time |
value-date
}
# 3.8.4.5 Related-To
property-related = element related-to {
element parameters {
reltypeparam?
}?,
value-text
}
# 3.8.4.6 Uniform Resource Locator
property-url = element url {
element parameters { empty }?,
value-uri
}
# 3.8.4.7 Unique Identifier
property-uid = element uid {
element parameters { empty }?,
value-text
}
# 3.8.5 Recurrence Component Properties
# 3.8.5.1 Exception Date/Times
property-exdate = element exdate {
element parameters {
tzidparam?
}?,
value-date-time+ |
value-date+
}
# 3.8.5.2 Recurrence Date/Times
property-rdate = element rdate {
element parameters {
tzidparam?
}?,
value-date-time+ |
value-date+ |
value-period+
}
# 3.8.5.3 Recurrence Rule
property-rrule = element rrule {
element parameters { empty }?,
value-recur
}
# 3.8.6 Alarm Component Properties
# 3.8.6.1 Action
property-action = element action {
element parameters { empty }?,
element text {
"AUDIO" |
"DISPLAY" |
"EMAIL"
}
}
# 3.8.6.2 Repeat Count
property-repeat = element repeat {
element parameters { empty }?,
value-integer
}
# 3.8.6.3 Trigger
property-trigger = element trigger {
(
element parameters {
trigrelparam?
}?,
value-duration
) |
(
element parameters { empty }?,
value-date-time
)
}
# 3.8.7 Change Management Component Properties
# 3.8.7.1 Date/Time Created
property-created = element created {
element parameters { empty }?,
value-date-time
}
# 3.8.7.2 Date/Time Stamp
property-dtstamp = element dtstamp {
element parameters { empty }?,
value-date-time
}
# 3.8.7.3 Last Modified
property-last-mod = element last-modified {
element parameters { empty }?,
value-date-time
}
# 3.8.7.4 Sequence Number
property-seq = element sequence {
element parameters { empty }?,
value-integer
}
# 3.8.8 Miscellaneous Component Properties
# 3.8.8.3 Request Status
property-rstatus = element request-status {
element parameters {
languageparam?
}?,
element code { xsd:string },
element description { xsd:string },
element data { xsd:string }?
}