XForms-nons-20.rnc

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xforms-nons-20.rnc

# -*- rnc -*-
# Copyright (C) 2009-2012 W3C (R); (MIT, ERCIM, Keio), All Rights Reserved.
# 
# Permission to use, copy, modify and distribute this RELAX NG schema
# for XForms 2.0 and its accompanying documentation for any purpose and
# without fee is hereby granted in perpetuity, provided that the above
# copyright notice and this paragraph appear in all copies. The copyright
# holders make no representation about the suitability of this RELAX NG
# schema for any purpose.
# 
# It is provided "as is" without expressed or implied warranty.
# For details, please refer to the W3C software license at:
# 
#   http://www.w3.org/Consortium/Legal/copyright-software

namespace xs = "http://www.w3.org/2001/XMLSchema"
namespace xsd = "http://www.w3.org/2001/XMLSchema-datatypes"
datatypes xsd = "http://www.w3.org/2001/XMLSchema-datatypes"

xforms.Common.attrib =
  # host language to add common attributes here
  attribute id { xsd:ID }?
xforms.Events.attrib =
  # host language to add XML Events attributes here
  empty
xforms.Linking.attrib =
  # host language to add src attribute here
  empty
xforms.Single.Node.Binding.attrib =
  attribute model { xsd:IDREF }?,
  attribute ref { XPathExpression }?,
  attribute bind { IDREF-avt }?
xforms.Nodeset.Binding.attrib =
  attribute model { xsd:IDREF }?,
  attribute ref { XPathExpression }?,
  attribute nodeset { XPathExpression }?, # nodeset is deprecated; use ref
  attribute bind { IDREF-avt }?

# To use external xmlschema.rnc such as http://www.jenitennison.com/schema/xmlschema.rng
# change its start pattern to be a pattern named "xsd.schema" and use the following lines.
# include "../xmlschema-component.rnc"
# xforms.schema = xsd.schema
# Placeholder for XML Schema RNG
xforms.schema = element xs:schema { attribute * { text }*, xforms.anyXSElement* }
xforms.model =
  element model { xforms.model.attrib, xforms.model.content }
xforms.model.attrib =
  xforms.Common.attrib,
  xforms.Events.attrib,
  attribute functions {
    list { xsd:QName+ }
  }?,
  attribute schema {
    list { xsd:anyURI+ }
  }?,
   attribute version { xforms.versionList }?,
   attribute xpath-version { "1.0" | "2.0" }
xforms.model.content =
  xforms.instance*
  & xforms.schema*
  & xforms.submission*
  & xforms.bind*
  & xforms.Actions*
  & xforms.Extension?
xforms.instance =
  element instance { xforms.instance.attrib, xforms.instance.content }
xforms.instance.attrib =
  xforms.Common.attrib,
  xforms.Linking.attrib?,
  # note: XForms 1.1 Recommendation defines this as a special attribute of instance, 
  # but XHTML integrations will add it in xforms.Linking.attrib
  # attribute src { anyURI-avt }?,
  # note: instance/@resource collides with rdf/a @resource
  attribute resource { anyURI-avt }?
xforms.instance.content = xforms.anyElement?
xforms.submission = element submission { xforms.submission.model }
xforms.submission.resource.attr = attribute resource { anyURI-avt }
xforms.submission.resource.element = element resource { xforms.ValueTemplate.anyURI }?
xforms.submission.action.attr = attribute action { anyURI-avt }
xforms.submission.model =
  # There should only be zero or one resource, zero or one method, and zero or more header
  xforms.Common.attrib
  & (# either the attribute method or the element method must be specified
   attribute method {
     QNameButNotNCName
     | "post"
     | "get"
     | "delete"
     | "put"
     | "multipart-post"
     | "form-data-post"
     | "urlencoded-post"
     | expr-avt.datatype
   }
   | element method { xforms.ValueTemplate })
   # note: resource attribute collides with rdf/a resource attribute
   & ((xforms.submission.action.attr & xforms.submission.resource.attr? & xforms.submission.resource.element) |
      (xforms.submission.action.attr? & xforms.submission.resource.attr & xforms.submission.resource.element?) |
      (xforms.submission.action.attr? & xforms.submission.resource.attr? & xforms.submission.resource.element))
   & element header {
     attribute nodeset { XPathExpression }?
     & attribute combine { "combine" | "append" | "prepend" | "replace" | expr-avt.datatype }?
     & (attribute name { expr-avt.datatype } | element name { xforms.ValueTemplate })
     & (attribute value { expr-avt.datatype } | element value { xforms.ValueTemplate }+)
  }*
  & attribute bind { IDREF-avt }?
  & attribute ref { XPathExpression }?
  & attribute includenamespaceprefixes {
    (list { (xsd:NMTOKEN | "#default")* }) | expr-avt.datatype
  }?
  # note: collides with xhtml common encoding attribute
  & attribute encoding { text-avt }?
  & attribute mode { "asynchronous" | "synchronous" | expr-avt.datatype }?
  & attribute omit-xml-declaration { boolean-avt }?
  & attribute indent { boolean-avt }?
  & attribute mediatype { text-avt }?
  & attribute standalone { boolean-avt}?
  & attribute cdata-section-elements {
    (list { xsd:QName+ | } | expr-avt.datatype)
  }?
  & attribute replace {
    QNameButNotNCName | "all" | "instance" | "text" | "none" | expr-avt.datatype
  }?
  & attribute instance { IDREF-avt }?
  & attribute relevant { boolean-avt }?
  & attribute separator { ";" | "&" | expr-avt.datatype}?
  & attribute serialization {
    "application/xml"
    | "application/x-www-form-urlencoded"
    | "multipart/related"
    | "multipart/form-data"
    | "none"
    | expr-avt.datatype
  }?
  & attribute validate { boolean-avt }?
  & attribute version { xforms.versionList }?
  & attribute targetref { XPathExpression }?
  & xforms.Actions
xforms.bind = element bind { xforms.bind.attrib, xforms.bind.content }
xforms.bind.attrib =
  xforms.Common.attrib,
  attribute nodeset { XPathExpression }?,
  attribute calculate { XPathExpression }?,
  attribute type { xsd:QName }?,
  attribute required { XPathExpression }?,
  attribute constraint { XPathExpression }?,
  attribute relevant { XPathExpression }?,
  attribute readonly { XPathExpression }?,
  attribute p3ptype { text }? # p3ptype is deprecated
xforms.bind.content = xforms.bind* & xforms.Extension?
# Form Controls
xforms.Core.Form.Controls =
  xforms.input
  | xforms.textarea
  | xforms.secret
  | xforms.output
  | xforms.upload
  | xforms.select1
  | xforms.select
  | xforms.range
  | xforms.submit
  | xforms.trigger
xforms.UI.Messages.attrib = empty
xforms.UI.Common.attrib =
  # host language to add accesskey and navindex here
  attribute appearance {
    xsd:QName { pattern = "[^:]+:[^:]+" }
    | "minimal"
    | "compact"
    | "full"
    | expr-avt.datatype
  }?
xforms.UI.Inline.class = xforms.output
xforms.UI.Inline.content = xforms.UI.Inline.class?
xforms.UI.Common.content =
  (xforms.help | xforms.hint | xforms.alert | xforms.Actions | xforms.Extension)*
xforms.List.UI.Common.content =
  (xforms.item | xforms.itemset | xforms.choices)+
# host language must override xforms.label.Text.content to be empty if xforms.UI.Inline.content also includes text
xforms.label.Text.content = text
xforms.label.attrib = xforms.Common.attrib, xforms.UI.Common.attrib, xforms.UI.Messages.attrib?
xforms.label.content = xforms.label.Text.content & xforms.UI.Inline.content
xforms.label =
  element label {
    xforms.label.attrib &
    (xforms.Linking.attrib | xforms.Single.Node.Binding.attrib) &
    xforms.label.content?
  }
xforms.help = element help { xforms.help.attrib, xforms.help.content,
  xforms.UI.Common.attrib, 
  attribute href { anyURI-avt }? }
xforms.help.attrib =
  xforms.Common.attrib,
  xforms.Linking.attrib?,
  xforms.Single.Node.Binding.attrib?,
  xforms.UI.Messages.attrib?
xforms.help.content = xforms.UI.Inline.content
xforms.hint = element hint { xforms.hint.attrib, xforms.hint.content }
xforms.hint.attrib =
  xforms.Common.attrib,
  xforms.Linking.attrib?,
  xforms.Single.Node.Binding.attrib?,
  xforms.UI.Common.attrib,
  xforms.UI.Messages.attrib?
xforms.hint.content = xforms.UI.Inline.content
xforms.alert =
  element alert { xforms.alert.attrib, xforms.alert.content }
xforms.alert.attrib =
  xforms.Common.attrib,
  xforms.Linking.attrib?,
  xforms.Single.Node.Binding.attrib,
  xforms.UI.Messages.attrib?
xforms.alert.content = xforms.UI.Inline.content
xforms.choices =
  element choices { xforms.choices.attrib, xforms.choices.content }
xforms.choices.attrib = xforms.Common.attrib
xforms.choices.content =
  xforms.label?, (xforms.choices | xforms.item | xforms.itemset)+
xforms.value =
  element value { xforms.value.attrib, xforms.value.content }
xforms.value.attrib =
  xforms.Common.attrib, xforms.Single.Node.Binding.attrib?
xforms.value.content = text
xforms.item = element item { xforms.item.attrib, xforms.item.content }
xforms.item.attrib = xforms.Common.attrib
xforms.item.content =
  xforms.label, xforms.value, xforms.UI.Common.content
xforms.itemset =
  element itemset { xforms.itemset.attrib, xforms.itemset.content }
xforms.itemset.attrib =
  xforms.Common.attrib, xforms.Nodeset.Binding.attrib
xforms.itemset.content =
  xforms.label, (xforms.value | xforms.copy), xforms.UI.Common.content
xforms.copy = element copy { xforms.copy.attrib, xforms.copy.content }
xforms.copy.attrib =
  xforms.Common.attrib, xforms.Single.Node.Binding.attrib
xforms.copy.content = empty
xforms.filename =
  element filename { xforms.filename.attrib, xforms.filename.content }
xforms.filename.attrib =
  xforms.Common.attrib, xforms.Single.Node.Binding.attrib
xforms.filename.content = empty
xforms.upload.mediatype =
  element mediatype {
    xforms.upload.mediatype.attrib, xforms.upload.mediatype.content
  }
xforms.upload.mediatype.attrib =
  xforms.Common.attrib, xforms.Single.Node.Binding.attrib
xforms.upload.mediatype.content = empty
xforms.output =
  element output { xforms.output.attrib & xforms.output.content }
xforms.output.attrib =
  xforms.Common.attrib,
  xforms.UI.Common.attrib,
  xforms.Single.Node.Binding.attrib?,
  attribute mediatype { text-avt }?,
  attribute value { XPathExpression }?
xforms.output.content = xforms.label?, (xforms.output.mediatype? & xforms.UI.Common.content)
xforms.output.mediatype =
  element mediatype {
    xforms.output.mediatype.attrib, xforms.output.mediatype.content
  }
xforms.output.mediatype.attrib =
  xforms.Common.attrib, (attribute value { XPathExpression } | xforms.Single.Node.Binding.attrib)
xforms.output.mediatype.content = empty # If erratum accepted, change xforms.output.mediatype to use xforms.ValueTemplate
xforms.UI.Interaction.attrib = 
  attribute incremental { boolean-avt }?, 
  attribute delay { nonNegativeInteger-avt }?
xforms.input =
  element input { xforms.input.attrib, xforms.input.content }
xforms.input.attrib =
  xforms.Common.attrib,
  xforms.Single.Node.Binding.attrib,
  attribute inputmode { text-avt }?,
  xforms.UI.Common.attrib,
  xforms.UI.interaction.attrib
xforms.input.content = xforms.label, xforms.UI.Common.content
xforms.textarea =
  element textarea { xforms.textarea.attrib, xforms.textarea.content }
xforms.textarea.attrib =
  xforms.Common.attrib,
  xforms.Single.Node.Binding.attrib,
  attribute inputmode { text-avt }?,
  xforms.UI.Common.attrib,
  xforms.UI.interaction.attrib
xforms.textarea.content = xforms.label, xforms.UI.Common.content
xforms.secret =
  element secret { xforms.secret.attrib, xforms.secret.content }
xforms.secret.attrib =
  xforms.Common.attrib,
  xforms.Single.Node.Binding.attrib,
  attribute inputmode { text-avt }?,
  xforms.UI.Common.attrib,
  xforms.UI.interaction.attrib
xforms.secret.content = xforms.label, xforms.UI.Common.content
xforms.upload =
  element upload { xforms.upload.attrib, xforms.upload.content }
xforms.upload.attrib =
  xforms.Common.attrib,
  xforms.Single.Node.Binding.attrib,
  attribute mediatype { text-avt }?,
  xforms.UI.Common.attrib,
  xforms.UI.interaction.attrib
xforms.upload.content =
  xforms.label,
  xforms.filename?,
  xforms.upload.mediatype?,
  xforms.UI.Common.content
xforms.select1 =
  element select1 { xforms.select1.attrib, xforms.select1.content }
xforms.select1.attrib =
  xforms.Common.attrib,
  xforms.Single.Node.Binding.attrib,
  xforms.UI.Common.attrib,
  attribute selection { "open" | "closed" | expr-avt.datatype }?,
  xforms.UI.interaction.attrib
xforms.select1.content =
  xforms.label, xforms.UI.Common.content, xforms.List.UI.Common.content, xforms.UI.Common.content
xforms.select =
  element select { xforms.select.attrib, xforms.select.content }
xforms.select.attrib =
  xforms.Common.attrib,
  xforms.Single.Node.Binding.attrib,
  xforms.UI.Common.attrib,
  attribute selection { "open" | "closed" | expr-avt.datatype }?,
  xforms.UI.interaction.attrib
xforms.select.content =
  xforms.label, xforms.UI.Common.content, xforms.List.UI.Common.content, xforms.UI.Common.content
xforms.range =
  element range { xforms.range.attrib, xforms.range.content }
xforms.range.attrib =
  xforms.Common.attrib,
  xforms.Single.Node.Binding.attrib,
  xforms.UI.Common.attrib,
  attribute start { text-avt }?,
  attribute end { text-avt }?,
  attribute step { text-avt }?,
  xforms.UI.interaction.attrib
xforms.range.content = xforms.label, xforms.UI.Common.content
xforms.trigger =
  element trigger { xforms.trigger.attrib, xforms.trigger.content }
xforms.trigger.attrib =
  xforms.Common.attrib,
  xforms.Single.Node.Binding.attrib?,
  xforms.UI.Common.attrib?
xforms.trigger.content = xforms.label, xforms.UI.Common.content
xforms.submit =
  element submit { xforms.submit.attrib, xforms.submit.content }
xforms.submit.attrib =
  xforms.Common.attrib,
  attribute submission { IDREF-avt },
  xforms.Single.Node.Binding.attrib?,
  xforms.UI.Common.attrib?
xforms.submit.content = xforms.label, xforms.UI.Common.content

# Actions
xforms.action =
  element action { xforms.action.attrib, xforms.action.content }
xforms.action.attrib = xforms.Common.attrib, xforms.actions.attrib
xforms.action.content = xforms.Actions
xforms.dispatch =
  element dispatch { xforms.dispatch.attrib, xforms.dispatch.content }
xforms.dispatch.attrib =
  xforms.Common.attrib,
  xforms.actions.attrib,
  attribute name { xforms.ActionName | expr-avt.datatype }?,
  attribute targetid { IDREF-avt }?,
  attribute target { xsd:IDREF }?,              # target is deprecated; use targetid
  attribute delay { nonNegativeInteger-avt }?,
  attribute bubbles { boolean-avt }?,
  attribute cancelable { boolean-avt }?
xforms.dispatch.content = element name { xforms.ValueTemplate.IDREF }?
   & element targetid { xforms.ValueTemplate.IDREF }?
   & element target { xforms.ValueTemplate.IDREF }?  # target is deprecated; use targetid
   & element delay { xforms.ValueTemplate }?
xforms.rebuild =
  element rebuild { xforms.rebuild.attrib, xforms.rebuild.content }
xforms.rebuild.attrib =
  xforms.Common.attrib,
  attribute model { IDREF-avt }?,
  xforms.actions.attrib
xforms.rebuild.content = empty
xforms.revalidate =
  element revalidate {
    xforms.revalidate.attrib, xforms.revalidate.content
  }
xforms.revalidate.attrib =
  xforms.Common.attrib,
  attribute model { IDREF-avt }?,
  xforms.actions.attrib
xforms.revalidate.content = empty
xforms.recalculate =
  element recalculate {
    xforms.recalculate.attrib, xforms.recalculate.content
  }
xforms.recalculate.attrib =
  xforms.Common.attrib,
  attribute model { IDREF-avt }?,
  xforms.actions.attrib
xforms.recalculate.content = empty
xforms.refresh =
  element refresh { xforms.refresh.attrib, xforms.refresh.content }
xforms.refresh.attrib =
  xforms.Common.attrib,
  attribute model { IDREF-avt }?,
  xforms.actions.attrib
xforms.refresh.content = empty
xforms.setfocus =
  element setfocus { xforms.setfocus.attrib, xforms.setfocus.content }
xforms.setfocus.attrib =
  xforms.Common.attrib,
  attribute control { IDREF-avt }?,
  element control { xforms.ValueTemplate.IDREF }?,
  xforms.actions.attrib
xforms.setfocus.content = empty
xforms.load = element load { xforms.load.attrib, xforms.load.content }
xforms.load.attrib =
  xforms.Common.attrib,
  attribute resource { anyURI-avt }?,    # note: collides with rdf/a resource attribute
  attribute show { "new" | "replace" | expr-avt.datatype }?,
  xforms.Single.Node.Binding.attrib,
  xforms.actions.attrib
xforms.load.content = element resource { xforms.ValueTemplate.anyURI }? 
xforms.setvalue =
  element setvalue { xforms.setvalue.attrib, xforms.ValueTemplate }
xforms.setvalue.attrib =
  xforms.Common.attrib,
  xforms.Single.Node.Binding.attrib?,
  xforms.actions.attrib
xforms.send = element send { xforms.send.attrib, xforms.send.content }
xforms.send.attrib =
  xforms.Common.attrib,
  attribute submission { IDREF-avt },
  xforms.actions.attrib
xforms.send.content = empty
xforms.reset =
  element reset { xforms.reset.attrib, xforms.reset.content }
xforms.reset.attrib =
  xforms.Common.attrib,
  attribute model { IDREF-avt }?,
  xforms.actions.attrib
xforms.reset.content = empty
xforms.insert =
  element insert { xforms.insert.attrib, xforms.insert.content }
xforms.insert.attrib =
  xforms.Common.attrib,
  attribute context { XPathExpression }?,
  attribute origin { XPathExpression }?,
  attribute at { XPathExpression }?,
  attribute position { "before" | "after" | expr-avt.datatype }?,
  xforms.Nodeset.Binding.attrib?,
  xforms.actions.attrib
xforms.insert.content = empty
xforms.delete =
  element delete { xforms.delete.attrib, xforms.delete.content }
xforms.delete.attrib =
  xforms.Common.attrib,
  attribute context { XPathExpression }?,
  attribute at { XPathExpression }?,
  xforms.Nodeset.Binding.attrib?,
  xforms.actions.attrib
xforms.delete.content = empty
xforms.setindex =
  element setindex { xforms.setindex.attrib, xforms.setindex.content }
xforms.setindex.attrib =
  xforms.Common.attrib,
  attribute repeat { IDREF-avt },
  attribute index { XPathExpression },
  xforms.actions.attrib
xforms.setindex.content = empty
xforms.toggle =
  element toggle { xforms.toggle.attrib, xforms.toggle.content }
xforms.toggle.attrib =
  xforms.Common.attrib,
  attribute case { IDREF-avt }?,
  xforms.actions.attrib
xforms.toggle.content = element case { xforms.ValueTemplate.IDREF }?
xforms.message =
  element message { xforms.message.attrib, xforms.message.content }
xforms.message.attrib =
  xforms.Common.attrib,
  attribute level { "ephemeral" | "modeless" | "modal" | expr-avt.datatype },
  xforms.Linking.attrib?,
  xforms.Single.Node.Binding.attrib?,
  xforms.actions.attrib

# host language must override xforms.message.Text.content to be mepty if xforms.UI.Inline.content also includes text
xforms.message.Text.content = text
xforms.message.content = xforms.message.Text.content & xforms.UI.Inline.content
xforms.Actions =
  (xforms.action
   | xforms.dispatch
   | xforms.rebuild
   | xforms.recalculate
   | xforms.refresh
   | xforms.setfocus
   | xforms.load
   | xforms.setvalue
   | xforms.send
   | xforms.reset
   | xforms.insert
   | xforms.delete
   | xforms.setindex
   | xforms.toggle
   | xforms.message)*
xforms.actions.attrib =
  xforms.Events.attrib,
  attribute if { XPathExpression }?,
  attribute while { XPathExpression }?

# Container Form Controls
xforms.Container.Form.Controls =
  xforms.group | xforms.repeat | xforms.switch
xforms.repeat =
  element repeat { xforms.repeat.attrib, xforms.repeat.content }
xforms.repeat.attrib =
  xforms.Common.attrib,
  xforms.Nodeset.Binding.attrib,
  xforms.UI.Common.attrib,
  attribute startindex { positiveInteger-avt }?,
  attribute number { nonNegativeInteger-avt }?
xforms.repeat.content =
  (xforms.Core.Form.Controls
   | xforms.Container.Form.Controls
   | xforms.UI.Inline.content)*
xforms.group =
  element group { xforms.group.attrib, xforms.group.content }
xforms.group.attrib =
  xforms.Common.attrib,
  xforms.Single.Node.Binding.attrib?,
  xforms.UI.Common.attrib
xforms.group.content =
  xforms.label?,
  (xforms.Core.Form.Controls
   | xforms.Container.Form.Controls
   | xforms.UI.Common.content
   | xforms.UI.Inline.content)*
xforms.switch =
  element switch { xforms.switch.attrib, xforms.switch.content }
xforms.switch.attrib =
  xforms.Common.attrib,
  xforms.Single.Node.Binding.attrib?,
  xforms.UI.Common.attrib,
  attribute caseref { XPathExpression }?
xforms.switch.content = xforms.switch.case+
xforms.switch.case =
  element case { xforms.switch.case.attrib, xforms.switch.case.content }
xforms.switch.case.attrib =
  xforms.Common.attrib,
  attribute selected { xsd:boolean }?
xforms.switch.case.content =
  xforms.label?,
  (xforms.Core.Form.Controls
   | xforms.Container.Form.Controls
   | xforms.action
   | xforms.UI.Inline.content)*
xforms.Extension =
   (xforms.extension.content &
    element extension { xforms.extension.attrib, xforms.extension.content })
xforms.extension.attrib =
  xforms.Common.attrib
xforms.extension.content =
  xforms.anyForeignElement*

# Simple Types
# Actions
xforms.ActionName =
  "xforms-model-construct"
  | "xforms-model-construct-done"
  | "xforms-ready"
  | "xforms-model-destruct"
  | "xforms-rebuild"
  | "xforms-recalculate"
  | "xforms-revalidate"
  | "xforms-refresh"
  | "xforms-reset"
  | "xforms-previous"
  | "xforms-next"
  | "xforms-focus"
  | "xforms-help"
  | "xforms-hint"
  | "xforms-submit"
  | "xforms-submit-serialize"
  | "xforms-insert"
  | "xforms-delete"
  | "xforms-value-changed"
  | "xforms-valid"
  | "xforms-invalid"
  | "xforms-readonly"
  | "xforms-readwrite"
  | "xforms-required"
  | "xforms-optional"
  | "xforms-enabled"
  | "xforms-disabled"
  | "xforms-select"
  | "xforms-deselect"
  | "xforms-in-range"
  | "xforms-out-of-range"
  | "xforms-scroll-first"
  | "xforms-scroll-last"
  | "xforms-submit-done"
  | "xforms-binding-exception"
  | "xforms-compute-exception"
  | "xforms-link-error"
  | "xforms-link-exception"
  | "xforms-output-error"
  | "xforms-submit-error"
  | "xforms-version-exception"
  | (xsd:NMTOKEN - (xsd:NMTOKEN { pattern = "xforms-.*" }))
  | expr-avt.datatype

QNameButNotNCName = xsd:QName { pattern = "[^:]+:[^:]+" }
XPathExpression = xsd:string
xforms.versionList = list { xforms.versionNumber+ }
xforms.versionNumber = xsd:string { pattern = "[1-9]\d*\.\d+" }

# Attribute or child element with @value attribute: most uses deprecated in favor of AVT
xforms.ValueTemplate = attribute value { XPathExpression }? & xsd:string
xforms.ValueTemplate.IDREF = attribute value { XPathExpression }? | (attribute value { XPathExpression }? & xsd:IDREF)
xforms.ValueTemplate.anyURI = attribute value { XPathExpression }? | (attribute value { XPathExpression }? & xsd:anyURI)

# AVT Simple Types, Taken from Jeni Tennison's XSLT 1.0 RNC Schema
# An AVT containing at least one expression.
expr-avt.datatype =
  xsd:string {
    pattern =
      "([^\{\}]|\{\{|\}\})*\{([^"'\{\}]|"[^"]*"|'[^']*')+\}([^\{\}]|\{\{|\}\}|\{([^"'\{\}]|"[^"]*"|'[^']*')+\})*"
  }
# An AVT containing at least one brace; ie where instantiated AVT
# is not the same as the literal AVT.
brace-avt.datatype =
  xsd:string {
    pattern =
      "[^\{\}]*(\{\{|\}\}|\{([^"'\{\}]|"[^"]*"|'[^']*')+\})([^\{\}]|\{\{|\}\}|\{([^"'\{\}]|"[^"]*"|'[^']*')+\})*"
  }
avt.datatype =
  xsd:string {
    pattern =
      "([^\{\}]|\{\{|\}\}|\{([^"'\{\}]|"[^"]*"|'[^']*')+\})*"
  }

# TODO: is expr-avt.datatype correct here?
IDREF-avt = xsd:IDREF | expr-avt.datatype
anyURI-avt = xsd:anyURI | expr-avt.datatype
text-avt = text | expr-avt.datatype
boolean-avt = xsd:boolean | expr-avt.datatype
nonNegativeInteger-avt = xsd:nonNegativeInteger | expr-avt.datatype
positiveInteger-avt = xsd:positiveInteger | expr-avt.datatype

xforms.anyElement =
  element * {
    (attribute * { text }
     | text
     | xforms.anyElement)*
  }
xforms.anyXSElement =
  element xs:* {
    (attribute * { text }
     | text
     | xforms.anyXSElement)*
  }
xforms.anyForeignElement = empty
# Portions Copyright 2004-2005 Brain Attic, L.L.C.
# Licensed under W3C Software License:
# http://lists.w3.org/Archives/Public/www-forms/2009Jun/0015.html
# For changes, see CHANGELOG.txt