namespace a = "http://relaxng.org/ns/compatibility/annotations/1.0"
namespace local = ""
namespace wadl = "http://research.sun.com/wadl/2006/07"

start =
  element wadl:application {
    doc*,
    grammars?,
    resources?,
    (resource | method | representation | fault)*,
    foreign-attribute,
    foreign-element
  }
languageTag = xsd:string {
   pattern = "[A-Za-z]{1,8}(-[A-Za-z0-9]{1,8})*"
}
doc = 
  element wadl:doc {
    attribute xml:lang { languageTag }?,
    attribute title { text }?,
    (text | foreign-element)*,
    foreign-attribute
  }
grammars = 
  element wadl:grammars { 
    doc*,
    incl*,
    foreign-element 
  }
incl =
  element wadl:include {
    doc*, 
    attribute href { xsd:anyURI },
    foreign-attribute
  }
resources =
  element wadl:resources {
    doc*,
    resource+,
    attribute base { xsd:anyURI },
    foreign-attribute,
    foreign-element
  }
resource =
  element wadl:resource {
    (
      (
        attribute href { xsd:anyURI },
        param*
      ) |
      (
        doc*,
        param*,
        (method | resource)*,
        attribute path { text }?,
        attribute id { xsd:token }?
       )
    ),
    foreign-element,
    foreign-attribute
  }
method =
  element wadl:method {
    (attribute href { xsd:anyURI }
     | (doc*,
        request?,
        response?,
        attribute id { xsd:token }?,
        attribute name {
          "DELETE" | "GET" | "HEAD" | "POST" | "PUT" | xsd:token
        })),
    foreign-element,
    foreign-attribute
  }
request =
  element wadl:request {
    doc*,
    representation*,
    param*,
    foreign-attribute,
    foreign-element
  }
response =
  element wadl:response {
    doc*, 
    (representation | fault)*, 
    foreign-attribute, 
    foreign-element
  }
representation =
  element wadl:representation {
    (attribute href { xsd:anyURI }
     | (doc*, 
        param*,
        attribute id { xsd:token }?,
        attribute element { xsd:QName }?,
        attribute mediaType { text }?,
        attribute profile { list { xsd:anyURI} }?)),
    foreign-attribute,
    foreign-element
  }
fault =
  element wadl:fault {
    (attribute href { xsd:anyURI }
     | (doc*, 
        param*,
        attribute id { xsd:token }?,
        attribute element { xsd:QName }?,
        attribute mediaType { text }?,
        attribute status {
          list { xsd:int+ }
        }?)),
    foreign-attribute,
    foreign-element
  }
param =
  element wadl:param {
    doc*,
    option*,
    link?,
    attribute name {xsd:token },
    attribute type { text }?,
    attribute default { text }?,
    attribute path { text }?,
    attribute style { "plain" | "form" | "matrix" }?,
    attribute required { xsd:boolean }?,
    attribute repeating { xsd:boolean }?,
    attribute fixed { text }?,
    foreign-element,
    foreign-attribute
  }
option = 
  element wadl:option {
    doc*,
    attribute value { xsd:string },
    foreign-element,
    foreign-attribute
  }
link = 
  element wadl:link {
    doc*,
    attribute href { xsd:anyURI }?,
    attribute rel { xsd:token }?,
    attribute rev { xsd:token }?,
    foreign-element,
    foreign-attribute
  }
foreign-attribute = attribute * - (wadl:* | local:* | xml:*) { text }*
foreign-element =
  element * - (wadl:* | local:*) {
    (attribute * { text }
     | text
     | any-element)*
  }*
any-element =
  element * {
    (attribute * { text }
     | text
     | any-element)*
  }*