From 0b02a6d123b2014705998c94ddf3d460948d3eac Mon Sep 17 00:00:00 2001
From: redmatrix <git@macgirvin.com>
Date: Tue, 10 May 2016 17:26:44 -0700
Subject: initial sabre upgrade (needs lots of work - to wit: authentication,
 redo the browser interface, and rework event export/import)

---
 vendor/sabre/vobject/resources/schema/xcal.rng  | 1192 +++++++++++++++++++++++
 vendor/sabre/vobject/resources/schema/xcard.rng |  388 ++++++++
 2 files changed, 1580 insertions(+)
 create mode 100644 vendor/sabre/vobject/resources/schema/xcal.rng
 create mode 100644 vendor/sabre/vobject/resources/schema/xcard.rng

(limited to 'vendor/sabre/vobject/resources/schema')

diff --git a/vendor/sabre/vobject/resources/schema/xcal.rng b/vendor/sabre/vobject/resources/schema/xcal.rng
new file mode 100644
index 000000000..4a51460e7
--- /dev/null
+++ b/vendor/sabre/vobject/resources/schema/xcal.rng
@@ -0,0 +1,1192 @@
+# 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 }?
+}
diff --git a/vendor/sabre/vobject/resources/schema/xcard.rng b/vendor/sabre/vobject/resources/schema/xcard.rng
new file mode 100644
index 000000000..c0b7cfb35
--- /dev/null
+++ b/vendor/sabre/vobject/resources/schema/xcard.rng
@@ -0,0 +1,388 @@
+# RELAX NG Schema for vCard in XML
+# Extract from RFC6351.
+# Erratum 2994 applied.
+# Erratum 3047 applied.
+# Erratum 3008 applied.
+# Erratum 4247 applied.
+
+default namespace = "urn:ietf:params:xml:ns:vcard-4.0"
+
+### Section 3.3: vCard Format Specification
+#
+# 3.3
+iana-token = xsd:string { pattern = "[a-zA-Z0-9\-]+" }
+x-name = xsd:string { pattern = "x-[a-zA-Z0-9\-]+" }
+
+### Section 4: Value types
+#
+# 4.1
+value-text = element text { text }
+value-text-list = value-text+
+
+# 4.2
+value-uri = element uri { xsd:anyURI }
+
+# 4.3.1
+value-date = element date {
+    xsd:string { pattern = "\d{8}|\d{4}-\d\d|--\d\d(\d\d)?|---\d\d" }
+  }
+
+# 4.3.2
+value-time = element time {
+    xsd:string { pattern = "(\d\d(\d\d(\d\d)?)?|-\d\d(\d\d)?|--\d\d)"
+                         ~ "(Z|[+\-]\d\d(\d\d)?)?" }
+  }
+
+# 4.3.3
+value-date-time = element date-time {
+    xsd:string { pattern = "(\d{8}|--\d{4}|---\d\d)T\d\d(\d\d(\d\d)?)?"
+                         ~ "(Z|[+\-]\d\d(\d\d)?)?" }
+  }
+
+# 4.3.4
+value-date-and-or-time = value-date | value-date-time | value-time
+
+# 4.3.5
+value-timestamp = element timestamp {
+    xsd:string { pattern = "\d{8}T\d{6}(Z|[+\-]\d\d(\d\d)?)?" }
+  }
+
+# 4.4
+value-boolean = element boolean { xsd:boolean }
+
+# 4.5
+value-integer = element integer { xsd:integer }
+
+# 4.6
+value-float = element float { xsd:float }
+
+# 4.7
+value-utc-offset = element utc-offset {
+    xsd:string { pattern = "[+\-]\d\d(\d\d)?" }
+  }
+
+# 4.8
+value-language-tag = element language-tag {
+    xsd:string { pattern = "([a-z]{2,3}((-[a-z]{3}){0,3})?|[a-z]{4,8})"
+                         ~ "(-[a-z]{4})?(-([a-z]{2}|\d{3}))?"
+                         ~ "(-([0-9a-z]{5,8}|\d[0-9a-z]{3}))*"
+                         ~ "(-[0-9a-wyz](-[0-9a-z]{2,8})+)*"
+                         ~ "(-x(-[0-9a-z]{1,8})+)?|x(-[0-9a-z]{1,8})+|"
+                         ~ "[a-z]{1,3}(-[0-9a-z]{2,8}){1,2}" }
+  }
+
+### Section 5: Parameters
+#
+# 5.1
+param-language = element language { value-language-tag }?
+
+# 5.2
+param-pref = element pref {
+    element integer {
+      xsd:integer { minInclusive = "1" maxInclusive = "100" }
+    }
+  }?
+
+# 5.4
+param-altid = element altid { value-text }?
+
+# 5.5
+param-pid = element pid {
+    element text { xsd:string { pattern = "\d+(\.\d+)?" } }+
+  }?
+
+# 5.6
+param-type = element type { element text { "work" | "home" }+ }?
+
+# 5.7
+param-mediatype = element mediatype { value-text }?
+
+# 5.8
+param-calscale = element calscale { element text { "gregorian" } }?
+
+# 5.9
+param-sort-as = element sort-as { value-text+ }?
+
+# 5.10
+param-geo = element geo { value-uri }?
+
+# 5.11
+param-tz = element tz { value-text | value-uri }?
+
+### Section 6: Properties
+#
+# 6.1.3
+property-source = element source {
+    element parameters { param-altid, param-pid, param-pref,
+                         param-mediatype }?,
+    value-uri
+  }
+
+# 6.1.4
+property-kind = element kind {
+    element text { "individual" | "group" | "org" | "location" |
+                   x-name | iana-token }*
+  }
+
+# 6.2.1
+property-fn = element fn {
+    element parameters { param-language, param-altid, param-pid,
+                         param-pref, param-type }?,
+    value-text
+  }
+
+# 6.2.2
+property-n = element n {
+    element parameters { param-language, param-sort-as, param-altid }?,
+    element surname { text }+,
+    element given { text }+,
+    element additional { text }+,
+    element prefix { text }+,
+    element suffix { text }+
+  }
+
+# 6.2.3
+property-nickname = element nickname {
+    element parameters { param-language, param-altid, param-pid,
+                         param-pref, param-type }?,
+    value-text-list
+  }
+
+# 6.2.4
+property-photo = element photo {
+    element parameters { param-altid, param-pid, param-pref, param-type,
+                         param-mediatype }?,
+    value-uri
+  }
+
+# 6.2.5
+property-bday = element bday {
+    element parameters { param-altid, param-calscale }?,
+    (value-date-and-or-time | value-text)
+  }
+
+# 6.2.6
+property-anniversary = element anniversary {
+    element parameters { param-altid, param-calscale }?,
+    (value-date-and-or-time | value-text)
+  }
+
+# 6.2.7
+property-gender = element gender {
+    element sex { "" | "M" | "F" | "O" | "N" | "U" },
+    element identity { text }?
+  }
+
+# 6.3.1
+param-label = element label { value-text }?
+property-adr = element adr {
+    element parameters { param-language, param-altid, param-pid,
+                         param-pref, param-type, param-geo, param-tz,
+                         param-label }?,
+    element pobox { text }+,
+    element ext { text }+,
+    element street { text }+,
+    element locality { text }+,
+    element region { text }+,
+    element code { text }+,
+    element country { text }+
+  }
+
+# 6.4.1
+property-tel = element tel {
+    element parameters {
+      param-altid,
+      param-pid,
+      param-pref,
+      element type {
+        element text { "work" | "home" | "text" | "voice"
+                     | "fax" | "cell" | "video" | "pager"
+                     | "textphone" | x-name | iana-token }+
+      }?,
+      param-mediatype
+    }?,
+    (value-text | value-uri)
+  }
+
+# 6.4.2
+property-email = element email {
+    element parameters { param-altid, param-pid, param-pref,
+                         param-type }?,
+    value-text
+  }
+
+# 6.4.3
+property-impp = element impp {
+    element parameters { param-altid, param-pid, param-pref,
+                         param-type, param-mediatype }?,
+    value-uri
+  }
+
+# 6.4.4
+property-lang = element lang {
+    element parameters { param-altid, param-pid, param-pref,
+                         param-type }?,
+    value-language-tag
+  }
+
+# 6.5.1
+property-tz = element tz {
+    element parameters { param-altid, param-pid, param-pref,
+                         param-type, param-mediatype }?,
+    (value-text | value-uri | value-utc-offset)
+  }
+
+# 6.5.2
+property-geo = element geo {
+    element parameters { param-altid, param-pid, param-pref,
+                         param-type, param-mediatype }?,
+    value-uri
+  }
+
+# 6.6.1
+property-title = element title {
+    element parameters { param-language, param-altid, param-pid,
+                         param-pref, param-type }?,
+    value-text
+  }
+
+# 6.6.2
+property-role = element role {
+    element parameters { param-language, param-altid, param-pid,
+                         param-pref, param-type }?,
+    value-text
+  }
+
+# 6.6.3
+property-logo = element logo {
+    element parameters { param-language, param-altid, param-pid,
+                         param-pref, param-type, param-mediatype }?,
+    value-uri
+  }
+
+# 6.6.4
+property-org = element org {
+    element parameters { param-language, param-altid, param-pid,
+                         param-pref, param-type, param-sort-as }?,
+    value-text-list
+  }
+
+# 6.6.5
+property-member = element member {
+    element parameters { param-altid, param-pid, param-pref,
+                         param-mediatype }?,
+    value-uri
+  }
+
+# 6.6.6
+property-related = element related {
+    element parameters {
+      param-altid,
+      param-pid,
+      param-pref,
+      element type {
+        element text {
+          "work" | "home" | "contact" | "acquaintance" |
+          "friend" | "met" | "co-worker" | "colleague" | "co-resident" |
+          "neighbor" | "child" | "parent" | "sibling" | "spouse" |
+          "kin" | "muse" | "crush" | "date" | "sweetheart" | "me" |
+          "agent" | "emergency"
+        }+
+      }?,
+      param-mediatype
+    }?,
+    (value-uri | value-text)
+  }
+
+# 6.7.1
+property-categories = element categories {
+    element parameters { param-altid, param-pid, param-pref,
+                         param-type }?,
+    value-text-list
+  }
+
+# 6.7.2
+property-note = element note {
+    element parameters { param-language, param-altid, param-pid,
+                         param-pref, param-type }?,
+    value-text
+  }
+
+# 6.7.3
+property-prodid = element prodid { value-text }
+
+# 6.7.4
+property-rev = element rev { value-timestamp }
+
+# 6.7.5
+property-sound = element sound {
+    element parameters { param-language, param-altid, param-pid,
+                         param-pref, param-type, param-mediatype }?,
+    value-uri
+  }
+
+# 6.7.6
+property-uid = element uid { value-uri }
+
+# 6.7.7
+property-clientpidmap = element clientpidmap {
+    element sourceid { xsd:positiveInteger },
+    value-uri
+  }
+
+# 6.7.8
+property-url = element url {
+    element parameters { param-altid, param-pid, param-pref,
+                         param-type, param-mediatype }?,
+    value-uri
+  }
+
+# 6.8.1
+property-key = element key {
+    element parameters { param-altid, param-pid, param-pref,
+                         param-type, param-mediatype }?,
+    (value-uri | value-text)
+  }
+
+# 6.9.1
+property-fburl = element fburl {
+    element parameters { param-altid, param-pid, param-pref,
+                         param-type, param-mediatype }?,
+    value-uri
+  }
+
+# 6.9.2
+property-caladruri = element caladruri {
+    element parameters { param-altid, param-pid, param-pref,
+                         param-type, param-mediatype }?,
+    value-uri
+  }
+
+# 6.9.3
+property-caluri = element caluri {
+    element parameters { param-altid, param-pid, param-pref,
+                         param-type, param-mediatype }?,
+    value-uri
+  }
+
+# Top-level grammar
+property = property-adr | property-anniversary | property-bday
+         | property-caladruri | property-caluri | property-categories
+         | property-clientpidmap | property-email | property-fburl
+         | property-fn | property-geo | property-impp | property-key
+         | property-kind | property-lang | property-logo
+         | property-member | property-n | property-nickname
+         | property-note | property-org | property-photo
+         | property-prodid | property-related | property-rev
+         | property-role | property-gender | property-sound
+         | property-source | property-tel | property-title
+         | property-tz | property-uid | property-url
+start = element vcards {
+    element vcard {
+      (property
+       | element group {
+           attribute name { text },
+           property*
+         })+
+    }+
+  }
-- 
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