#% dom output model, part of SiSU and under the same license
default namespace = ""
namespace xlink = "http://www.w3.org/1999/xlink"
start =
  element document {
    element head {
      element header {
        meta,
        (element creator { text }
         | element date { xsd:NMTOKEN }
         | element date_available { xsd:NMTOKEN }
         | element date_created { xsd:NMTOKEN }
         | element date_issued { xsd:NMTOKEN }
         | element date_modified { xsd:NMTOKEN }
         | element date_valid { xsd:NMTOKEN }
         | element keywords { text }
         | element language { xsd:NCName }
         | element rights { (text | link)+ }
         | element source { text }
         | element structure { text }
         | element subject { text }
         | element title { text }
         | element type { text }
         | element source_control {
             (br
              | meta
              | element sc {
                  attribute class { xsd:NCName },
                  text
                })+
           })
      }+
    },
    element body {
      element heading1 {
        heading,
        contents1*,
        element heading2 {
          heading,
          contents1*,
          element heading3 {
            heading,
            element contents1 {
              heading,
              content,
              element contents2 {
                heading,
                content,
                element contents3 { heading, content }*
              }*
            }+
          }*
        }*
      }+
    }
  }
meta = element meta { text }
br = element br { empty }
heading = element heading { object }
contents1 =
  element contents1 {
    heading,
    content,
    element contents2 {
      heading,
      content,
      element contents3 { heading, content }*
    }*
  }
content = element content { object* }
object =
  element object {
    attribute id { xsd:integer },
    element ocn { text },
    element nametag { text }?,
    (element table {
       attribute align { xsd:NCName },
       attribute bgcolor { xsd:NCName },
       attribute border { xsd:integer },
       attribute cellpadding { xsd:integer },
       attribute summary { text },
       attribute width { text },
       element tr {
         element td {
           attribute valign { xsd:NCName },
           attribute width { text },
           (text | b | i)+
         }+
       }+
     }
     | element text {
         attribute class { xsd:NCName }?,
         (text
          | b
          | del
          | endnote
          | i
          | link
          | element br { empty }
          | element endnote {
              element number { xsd:integer },
              element note { (text | i | link)+ }
            }
          | element image {
              attribute height { xsd:integer },
              attribute width { xsd:integer },
              attribute xlink:actuate { xsd:NCName },
              attribute xlink:href { text },
              attribute xlink:show { xsd:NCName },
              attribute xlink:type { xsd:NCName }
            }
          | element sub { text })+
       })
  }
i = element i { text }
b = element i { text }
u = element u { (text | b | i)+ }
sub = element sub { xsd:NCName }
sup = element sup { xsd:NCName }
del = element del { (text | b | i | link)+ }
link =
  element link {
    attribute xlink:href { xsd:anyURI },
    attribute xlink:type { xsd:NCName },
    xsd:anyURI
  }
endnote =
  element endnote {
    (element number { xsd:integer }
     | element symbol { text }),
    element note {
      (text
       | b
       | br
       | del
       | i
       | link
       | sub
       | sup
       | u
       | element em { xsd:NCName }
       | element sub { xsd:NCName })+
    }
  }