Imported upstream version 0.52.7upstream/0.52.7sisu_0.52.7

15 files changed, 2873 insertions, 0 deletions

diff --git a/data/doc/sisu/model/xml/input/rnc/dom.rnc b/data/doc/sisu/model/xml/input/rnc/dom.rnc
new file mode 100644
index 00000000..7391eca4
--- /dev/null
+++ b/data/doc/sisu/model/xml/input/rnc/dom.rnc
@@ -0,0 +1,69 @@
+#% dom input model, part of SiSU and under the same license
+default namespace = ""
+start =
+  element document {
+    element head {
+      element header {
+        attribute class { xsd:NCName },
+        (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 italicize { text }
+         | element language { xsd:NCName }
+         | element links { text }
+         | element markup { text }
+         | element rights { text }
+         | element skin { xsd:NCName }
+         | element subject { text }
+         | element title { text }
+         | element type { xsd:NCName }
+         | element vocabulary { xsd:NCName })
+      }+
+    },
+    element body {
+      element heading1 {
+        heading,
+        element heading2 {
+          heading,
+          contents1+,
+          element heading3 { heading, contents1+ }+
+        }
+      }
+    }
+  }
+heading = element heading { object }
+contents1 =
+  element contents1 {
+    heading,
+    content,
+    element contents2 {
+      heading,
+      content,
+      element contents3 { heading, content }*
+    }*
+  }
+object =
+  element object {
+    element text {
+      (text
+       | italic
+       | element bold { xsd:NMTOKEN }
+       | element endnote {
+           element symbol { text }?,
+           element note {
+             (text
+              | italic
+              | element br { empty })+
+           }
+         }
+       | element underscore { italic }
+       | element image.path { text }
+       | element italic { text })+
+    }
+  }
+italic = element italic { text }
+content = element content { object+ }
diff --git a/data/doc/sisu/model/xml/input/rnc/node.rnc b/data/doc/sisu/model/xml/input/rnc/node.rnc
new file mode 100644
index 00000000..5116f629
--- /dev/null
+++ b/data/doc/sisu/model/xml/input/rnc/node.rnc
@@ -0,0 +1,67 @@
+#% node input model, part of SiSU and under the same license
+default namespace = ""
+start =
+  element document {
+    element head {
+      element header {
+        attribute class { xsd:NCName },
+        (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 italicize { (text | i)+ }
+         | element language { xsd:NCName }
+         | element links { text }
+         | element markup { text }
+         | element rights { text }
+         | element skin { xsd:NCName }
+         | element subject { text }
+         | element title { text }
+         | element type { xsd:NCName }
+         | element vocabulary { xsd:NCName })
+      }+
+    },
+    element body {
+      element object {
+        (element text {
+           attribute class { xsd:NCName },
+           (text
+            | b
+            | i
+            | element br { empty }
+            | element endnote {
+                attribute symbol { xsd:NCName },
+                (text | i)+
+              }
+            | element image.path { text }
+            | element sub { text })+
+         }
+         | (element ocn { empty },
+            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)+
+                }+
+              }+
+            })),
+        element node {
+          element id { xsd:integer },
+          element parent { xsd:integer },
+          element offspring { text }?
+        }
+      }+
+    }
+  }
+b = element b { text }
+i = element i { text }
diff --git a/data/doc/sisu/model/xml/input/rnc/sax.rnc b/data/doc/sisu/model/xml/input/rnc/sax.rnc
new file mode 100644
index 00000000..891a18f8
--- /dev/null
+++ b/data/doc/sisu/model/xml/input/rnc/sax.rnc
@@ -0,0 +1,47 @@
+#% sax input model, part of SiSU and under the same license
+default namespace = ""
+start =
+  element document {
+    element head {
+      element header {
+        attribute class { xsd:NCName },
+        (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 italicize { text }
+         | element language { xsd:NCName }
+         | element links { text }
+         | element markup { text }
+         | element rights { text }
+         | element skin { xsd:NCName }
+         | element subject { text }
+         | element title { text }
+         | element type { xsd:NCName }
+         | element vocabulary { xsd:NCName })
+      }+
+    },
+    element body {
+      element object {
+        element text {
+          attribute class { xsd:NCName },
+          (text
+           | b
+           | i
+           | element endnote {
+               attribute symbol { xsd:NCName },
+               (text
+                | i
+                | element br { empty })+
+             }
+           | element u { i }
+           | element image.path { text })+
+        }?
+      }+
+    }
+  }
+i = element i { text }
+b = element b { text }
diff --git a/data/doc/sisu/model/xml/input/rng/dom.rng b/data/doc/sisu/model/xml/input/rng/dom.rng
new file mode 100644
index 00000000..746421c8
--- /dev/null
+++ b/data/doc/sisu/model/xml/input/rng/dom.rng
@@ -0,0 +1,166 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- dom rng input model, part of SiSU and under the same license -->
+<grammar ns="" xmlns="http://relaxng.org/ns/structure/1.0" datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes">
+  <start>
+    <element name="document">
+      <element name="head">
+        <oneOrMore>
+          <element name="header">
+            <attribute name="class">
+              <data type="NCName"/>
+            </attribute>
+            <choice>
+              <element name="creator">
+                <text/>
+              </element>
+              <element name="date">
+                <data type="NMTOKEN"/>
+              </element>
+              <element name="date.available">
+                <data type="NMTOKEN"/>
+              </element>
+              <element name="date.created">
+                <data type="NMTOKEN"/>
+              </element>
+              <element name="date.issued">
+                <data type="NMTOKEN"/>
+              </element>
+              <element name="date.modified">
+                <data type="NMTOKEN"/>
+              </element>
+              <element name="date.valid">
+                <data type="NMTOKEN"/>
+              </element>
+              <element name="italicize">
+                <text/>
+              </element>
+              <element name="language">
+                <data type="NCName"/>
+              </element>
+              <element name="links">
+                <text/>
+              </element>
+              <element name="markup">
+                <text/>
+              </element>
+              <element name="rights">
+                <text/>
+              </element>
+              <element name="skin">
+                <data type="NCName"/>
+              </element>
+              <element name="subject">
+                <text/>
+              </element>
+              <element name="title">
+                <text/>
+              </element>
+              <element name="type">
+                <data type="NCName"/>
+              </element>
+              <element name="vocabulary">
+                <data type="NCName"/>
+              </element>
+            </choice>
+          </element>
+        </oneOrMore>
+      </element>
+      <element name="body">
+        <element name="heading1">
+          <ref name="heading"/>
+          <element name="heading2">
+            <ref name="heading"/>
+            <oneOrMore>
+              <ref name="contents1"/>
+            </oneOrMore>
+            <oneOrMore>
+              <element name="heading3">
+                <ref name="heading"/>
+                <oneOrMore>
+                  <ref name="contents1"/>
+                </oneOrMore>
+              </element>
+            </oneOrMore>
+          </element>
+        </element>
+      </element>
+    </element>
+  </start>
+  <define name="heading">
+    <element name="heading">
+      <ref name="object"/>
+    </element>
+  </define>
+  <define name="contents1">
+    <element name="contents1">
+      <ref name="heading"/>
+      <ref name="content"/>
+      <zeroOrMore>
+        <element name="contents2">
+          <ref name="heading"/>
+          <ref name="content"/>
+          <zeroOrMore>
+            <element name="contents3">
+              <ref name="heading"/>
+              <ref name="content"/>
+            </element>
+          </zeroOrMore>
+        </element>
+      </zeroOrMore>
+    </element>
+  </define>
+  <define name="object">
+    <element name="object">
+      <element name="text">
+        <oneOrMore>
+          <choice>
+            <text/>
+            <ref name="italic"/>
+            <element name="bold">
+              <data type="NMTOKEN"/>
+            </element>
+            <element name="endnote">
+              <optional>
+                <element name="symbol">
+                  <text/>
+                </element>
+              </optional>
+              <element name="note">
+                <oneOrMore>
+                  <choice>
+                    <text/>
+                    <ref name="italic"/>
+                    <element name="br">
+                      <empty/>
+                    </element>
+                  </choice>
+                </oneOrMore>
+              </element>
+            </element>
+            <element name="underscore">
+              <ref name="italic"/>
+            </element>
+            <element name="image.path">
+              <text/>
+            </element>
+            <element name="italic">
+              <text/>
+            </element>
+          </choice>
+        </oneOrMore>
+      </element>
+    </element>
+  </define>
+  <define name="italic">
+    <element name="italic">
+      <text/>
+    </element>
+  </define>
+  <define name="content">
+    <element name="content">
+      <oneOrMore>
+        <ref name="object"/>
+      </oneOrMore>
+    </element>
+  </define>
+</grammar>
diff --git a/data/doc/sisu/model/xml/input/rng/node.rng b/data/doc/sisu/model/xml/input/rng/node.rng
new file mode 100644
index 00000000..8b60cce8
--- /dev/null
+++ b/data/doc/sisu/model/xml/input/rng/node.rng
@@ -0,0 +1,177 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- node rng input model, part of SiSU and under the same license -->
+<grammar ns="" xmlns="http://relaxng.org/ns/structure/1.0" datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes">
+  <start>
+    <element name="document">
+      <element name="head">
+        <oneOrMore>
+          <element name="header">
+            <attribute name="class">
+              <data type="NCName"/>
+            </attribute>
+            <choice>
+              <element name="creator">
+                <text/>
+              </element>
+              <element name="date">
+                <data type="NMTOKEN"/>
+              </element>
+              <element name="date.available">
+                <data type="NMTOKEN"/>
+              </element>
+              <element name="date.created">
+                <data type="NMTOKEN"/>
+              </element>
+              <element name="date.issued">
+                <data type="NMTOKEN"/>
+              </element>
+              <element name="date.modified">
+                <data type="NMTOKEN"/>
+              </element>
+              <element name="date.valid">
+                <data type="NMTOKEN"/>
+              </element>
+              <element name="italicize">
+                <oneOrMore>
+                  <choice>
+                    <text/>
+                    <ref name="i"/>
+                  </choice>
+                </oneOrMore>
+              </element>
+              <element name="language">
+                <data type="NCName"/>
+              </element>
+              <element name="links">
+                <text/>
+              </element>
+              <element name="markup">
+                <text/>
+              </element>
+              <element name="rights">
+                <text/>
+              </element>
+              <element name="skin">
+                <data type="NCName"/>
+              </element>
+              <element name="subject">
+                <text/>
+              </element>
+              <element name="title">
+                <text/>
+              </element>
+              <element name="type">
+                <data type="NCName"/>
+              </element>
+              <element name="vocabulary">
+                <data type="NCName"/>
+              </element>
+            </choice>
+          </element>
+        </oneOrMore>
+      </element>
+      <element name="body">
+        <oneOrMore>
+          <element name="object">
+            <choice>
+              <element name="text">
+                <attribute name="class">
+                  <data type="NCName"/>
+                </attribute>
+                <oneOrMore>
+                  <choice>
+                    <text/>
+                    <ref name="b"/>
+                    <ref name="i"/>
+                    <element name="br">
+                      <empty/>
+                    </element>
+                    <element name="endnote">
+                      <attribute name="symbol">
+                        <data type="NCName"/>
+                      </attribute>
+                      <oneOrMore>
+                        <choice>
+                          <text/>
+                          <ref name="i"/>
+                        </choice>
+                      </oneOrMore>
+                    </element>
+                    <element name="image.path">
+                      <text/>
+                    </element>
+                    <element name="sub">
+                      <text/>
+                    </element>
+                  </choice>
+                </oneOrMore>
+              </element>
+              <group>
+                <element name="ocn">
+                  <empty/>
+                </element>
+                <element name="table">
+                  <attribute name="align">
+                    <data type="NCName"/>
+                  </attribute>
+                  <attribute name="bgcolor">
+                    <data type="NCName"/>
+                  </attribute>
+                  <attribute name="border">
+                    <data type="integer"/>
+                  </attribute>
+                  <attribute name="cellpadding">
+                    <data type="integer"/>
+                  </attribute>
+                  <attribute name="summary"/>
+                  <attribute name="width"/>
+                  <oneOrMore>
+                    <element name="tr">
+                      <oneOrMore>
+                        <element name="td">
+                          <attribute name="valign">
+                            <data type="NCName"/>
+                          </attribute>
+                          <attribute name="width"/>
+                          <oneOrMore>
+                            <choice>
+                              <text/>
+                              <ref name="b"/>
+                            </choice>
+                          </oneOrMore>
+                        </element>
+                      </oneOrMore>
+                    </element>
+                  </oneOrMore>
+                </element>
+              </group>
+            </choice>
+            <element name="node">
+              <element name="id">
+                <data type="integer"/>
+              </element>
+              <element name="parent">
+                <data type="integer"/>
+              </element>
+              <optional>
+                <element name="offspring">
+                  <text/>
+                </element>
+              </optional>
+            </element>
+          </element>
+        </oneOrMore>
+      </element>
+    </element>
+  </start>
+  <define name="b">
+    <element name="b">
+      <text/>
+    </element>
+  </define>
+  <define name="i">
+    <element name="i">
+      <text/>
+    </element>
+  </define>
+</grammar>
diff --git a/data/doc/sisu/model/xml/input/rng/sax.rng b/data/doc/sisu/model/xml/input/rng/sax.rng
new file mode 100644
index 00000000..14412938
--- /dev/null
+++ b/data/doc/sisu/model/xml/input/rng/sax.rng
@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- sax rng input model, part of SiSU and under the same license -->
+<grammar ns="" xmlns="http://relaxng.org/ns/structure/1.0" datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes">
+  <start>
+    <element name="document">
+      <element name="head">
+        <oneOrMore>
+          <element name="header">
+            <attribute name="class">
+              <data type="NCName"/>
+            </attribute>
+            <choice>
+              <element name="creator">
+                <text/>
+              </element>
+              <element name="date">
+                <data type="NMTOKEN"/>
+              </element>
+              <element name="date.available">
+                <data type="NMTOKEN"/>
+              </element>
+              <element name="date.created">
+                <data type="NMTOKEN"/>
+              </element>
+              <element name="date.issued">
+                <data type="NMTOKEN"/>
+              </element>
+              <element name="date.modified">
+                <data type="NMTOKEN"/>
+              </element>
+              <element name="date.valid">
+                <data type="NMTOKEN"/>
+              </element>
+              <element name="italicize">
+                <text/>
+              </element>
+              <element name="language">
+                <data type="NCName"/>
+              </element>
+              <element name="links">
+                <text/>
+              </element>
+              <element name="markup">
+                <text/>
+              </element>
+              <element name="rights">
+                <text/>
+              </element>
+              <element name="skin">
+                <data type="NCName"/>
+              </element>
+              <element name="subject">
+                <text/>
+              </element>
+              <element name="title">
+                <text/>
+              </element>
+              <element name="type">
+                <data type="NCName"/>
+              </element>
+              <element name="vocabulary">
+                <data type="NCName"/>
+              </element>
+            </choice>
+          </element>
+        </oneOrMore>
+      </element>
+      <element name="body">
+        <oneOrMore>
+          <element name="object">
+            <optional>
+              <element name="text">
+                <attribute name="class">
+                  <data type="NCName"/>
+                </attribute>
+                <oneOrMore>
+                  <choice>
+                    <text/>
+                    <ref name="b"/>
+                    <ref name="i"/>
+                    <element name="endnote">
+                      <attribute name="symbol">
+                        <data type="NCName"/>
+                      </attribute>
+                      <oneOrMore>
+                        <choice>
+                          <text/>
+                          <ref name="i"/>
+                          <element name="br">
+                            <empty/>
+                          </element>
+                        </choice>
+                      </oneOrMore>
+                    </element>
+                    <element name="u">
+                      <ref name="i"/>
+                    </element>
+                    <element name="image.path">
+                      <text/>
+                    </element>
+                  </choice>
+                </oneOrMore>
+              </element>
+            </optional>
+          </element>
+        </oneOrMore>
+      </element>
+    </element>
+  </start>
+  <define name="i">
+    <element name="i">
+      <text/>
+    </element>
+  </define>
+  <define name="b">
+    <element name="b">
+      <text/>
+    </element>
+  </define>
+</grammar>
diff --git a/data/doc/sisu/model/xml/input/xsd/dom.xsd b/data/doc/sisu/model/xml/input/xsd/dom.xsd
new file mode 100644
index 00000000..8de8999a
--- /dev/null
+++ b/data/doc/sisu/model/xml/input/xsd/dom.xsd
@@ -0,0 +1,181 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- dom input model, part of SiSU and under the same license -->
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">
+  <xs:element name="document">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="head"/>
+        <xs:element ref="body"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="head">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element maxOccurs="unbounded" ref="header"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="header">
+    <xs:complexType>
+      <xs:choice>
+        <xs:element ref="creator"/>
+        <xs:element ref="date"/>
+        <xs:element ref="date.available"/>
+        <xs:element ref="date.created"/>
+        <xs:element ref="date.issued"/>
+        <xs:element ref="date.modified"/>
+        <xs:element ref="date.valid"/>
+        <xs:element ref="italicize"/>
+        <xs:element ref="language"/>
+        <xs:element ref="links"/>
+        <xs:element ref="markup"/>
+        <xs:element ref="rights"/>
+        <xs:element ref="skin"/>
+        <xs:element ref="subject"/>
+        <xs:element ref="title"/>
+        <xs:element ref="type"/>
+        <xs:element ref="vocabulary"/>
+      </xs:choice>
+      <xs:attribute name="class" use="required" type="xs:NCName"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="creator" type="xs:string"/>
+  <xs:element name="date" type="xs:NMTOKEN"/>
+  <xs:element name="date.available" type="xs:NMTOKEN"/>
+  <xs:element name="date.created" type="xs:NMTOKEN"/>
+  <xs:element name="date.issued" type="xs:NMTOKEN"/>
+  <xs:element name="date.modified" type="xs:NMTOKEN"/>
+  <xs:element name="date.valid" type="xs:NMTOKEN"/>
+  <xs:element name="italicize" type="xs:string"/>
+  <xs:element name="language" type="xs:NCName"/>
+  <xs:element name="links" type="xs:string"/>
+  <xs:element name="markup" type="xs:string"/>
+  <xs:element name="rights" type="xs:string"/>
+  <xs:element name="skin" type="xs:NCName"/>
+  <xs:element name="subject" type="xs:string"/>
+  <xs:element name="title" type="xs:string"/>
+  <xs:element name="type" type="xs:NCName"/>
+  <xs:element name="vocabulary" type="xs:NCName"/>
+  <xs:element name="body">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="heading1"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="heading1">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="heading"/>
+        <xs:element ref="heading2"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="heading2">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="heading"/>
+        <xs:element maxOccurs="unbounded" ref="contents1"/>
+        <xs:element maxOccurs="unbounded" ref="heading3"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="heading3">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="heading"/>
+        <xs:element maxOccurs="unbounded" ref="contents1"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="heading">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="object"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="contents1">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="heading"/>
+        <xs:element ref="content"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="contents2"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="contents2">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="heading"/>
+        <xs:element ref="content"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="contents3"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="contents3">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="heading"/>
+        <xs:element ref="content"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="object">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="text"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="text">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:element ref="italic"/>
+        <xs:element ref="bold"/>
+        <xs:element ref="endnote"/>
+        <xs:element ref="underscore"/>
+        <xs:element ref="image.path"/>
+        <xs:element ref="italic"/>
+      </xs:choice>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="bold" type="xs:NMTOKEN"/>
+  <xs:element name="endnote">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="symbol"/>
+        <xs:element ref="note"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="symbol" type="xs:string"/>
+  <xs:element name="note">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:element ref="italic"/>
+        <xs:element ref="br"/>
+      </xs:choice>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="br">
+    <xs:complexType/>
+  </xs:element>
+  <xs:element name="underscore">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="italic"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="image.path" type="xs:string"/>
+  <xs:element name="italic" type="xs:string"/>
+  <xs:element name="content">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element maxOccurs="unbounded" ref="object"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+</xs:schema>
diff --git a/data/doc/sisu/model/xml/input/xsd/node.xsd b/data/doc/sisu/model/xml/input/xsd/node.xsd
new file mode 100644
index 00000000..f0fc9614
--- /dev/null
+++ b/data/doc/sisu/model/xml/input/xsd/node.xsd
@@ -0,0 +1,159 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- node input model, part of SiSU and under the same license -->
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">
+  <xs:element name="document">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="head"/>
+        <xs:element ref="body"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="head">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element maxOccurs="unbounded" ref="header"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="header">
+    <xs:complexType>
+      <xs:choice>
+        <xs:element ref="creator"/>
+        <xs:element ref="date"/>
+        <xs:element ref="date.available"/>
+        <xs:element ref="date.created"/>
+        <xs:element ref="date.issued"/>
+        <xs:element ref="date.modified"/>
+        <xs:element ref="date.valid"/>
+        <xs:element ref="italicize"/>
+        <xs:element ref="language"/>
+        <xs:element ref="links"/>
+        <xs:element ref="markup"/>
+        <xs:element ref="rights"/>
+        <xs:element ref="skin"/>
+        <xs:element ref="subject"/>
+        <xs:element ref="title"/>
+        <xs:element ref="type"/>
+        <xs:element ref="vocabulary"/>
+      </xs:choice>
+      <xs:attribute name="class" use="required" type="xs:NCName"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="creator" type="xs:string"/>
+  <xs:element name="date" type="xs:NMTOKEN"/>
+  <xs:element name="date.available" type="xs:NMTOKEN"/>
+  <xs:element name="date.created" type="xs:NMTOKEN"/>
+  <xs:element name="date.issued" type="xs:NMTOKEN"/>
+  <xs:element name="date.modified" type="xs:NMTOKEN"/>
+  <xs:element name="date.valid" type="xs:NMTOKEN"/>
+  <xs:element name="italicize">
+    <xs:complexType mixed="true">
+      <xs:sequence>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="i"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="language" type="xs:NCName"/>
+  <xs:element name="links" type="xs:string"/>
+  <xs:element name="markup" type="xs:string"/>
+  <xs:element name="rights" type="xs:string"/>
+  <xs:element name="skin" type="xs:NCName"/>
+  <xs:element name="subject" type="xs:string"/>
+  <xs:element name="title" type="xs:string"/>
+  <xs:element name="type" type="xs:NCName"/>
+  <xs:element name="vocabulary" type="xs:NCName"/>
+  <xs:element name="body">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element maxOccurs="unbounded" ref="object"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="object">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:choice>
+          <xs:element ref="text"/>
+          <xs:sequence>
+            <xs:element ref="ocn"/>
+            <xs:element ref="table"/>
+          </xs:sequence>
+        </xs:choice>
+        <xs:element ref="node"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="text">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:element ref="b"/>
+        <xs:element ref="i"/>
+        <xs:element ref="br"/>
+        <xs:element ref="endnote"/>
+        <xs:element ref="image.path"/>
+        <xs:element ref="sub"/>
+      </xs:choice>
+      <xs:attribute name="class" use="required" type="xs:NCName"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="br">
+    <xs:complexType/>
+  </xs:element>
+  <xs:element name="endnote">
+    <xs:complexType mixed="true">
+      <xs:sequence>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="i"/>
+      </xs:sequence>
+      <xs:attribute name="symbol" use="required" type="xs:NCName"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="image.path" type="xs:string"/>
+  <xs:element name="sub" type="xs:string"/>
+  <xs:element name="ocn">
+    <xs:complexType/>
+  </xs:element>
+  <xs:element name="table">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element maxOccurs="unbounded" ref="tr"/>
+      </xs:sequence>
+      <xs:attribute name="align" use="required" type="xs:NCName"/>
+      <xs:attribute name="bgcolor" use="required" type="xs:NCName"/>
+      <xs:attribute name="border" use="required" type="xs:integer"/>
+      <xs:attribute name="cellpadding" use="required" type="xs:integer"/>
+      <xs:attribute name="summary" use="required"/>
+      <xs:attribute name="width" use="required"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="tr">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element maxOccurs="unbounded" ref="td"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="td">
+    <xs:complexType mixed="true">
+      <xs:sequence>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="b"/>
+      </xs:sequence>
+      <xs:attribute name="valign" use="required" type="xs:NCName"/>
+      <xs:attribute name="width" use="required"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="node">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="id"/>
+        <xs:element ref="parent"/>
+        <xs:element minOccurs="0" ref="offspring"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="id" type="xs:integer"/>
+  <xs:element name="parent" type="xs:integer"/>
+  <xs:element name="offspring" type="xs:string"/>
+  <xs:element name="b" type="xs:string"/>
+  <xs:element name="i" type="xs:string"/>
+</xs:schema>
diff --git a/data/doc/sisu/model/xml/input/xsd/sax.xsd b/data/doc/sisu/model/xml/input/xsd/sax.xsd
new file mode 100644
index 00000000..450bfce5
--- /dev/null
+++ b/data/doc/sisu/model/xml/input/xsd/sax.xsd
@@ -0,0 +1,108 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- sax input model, part of SiSU and under the same license -->
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">
+  <xs:element name="document">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="head"/>
+        <xs:element ref="body"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="head">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element maxOccurs="unbounded" ref="header"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="header">
+    <xs:complexType>
+      <xs:choice>
+        <xs:element ref="creator"/>
+        <xs:element ref="date"/>
+        <xs:element ref="date.available"/>
+        <xs:element ref="date.created"/>
+        <xs:element ref="date.issued"/>
+        <xs:element ref="date.modified"/>
+        <xs:element ref="date.valid"/>
+        <xs:element ref="italicize"/>
+        <xs:element ref="language"/>
+        <xs:element ref="links"/>
+        <xs:element ref="markup"/>
+        <xs:element ref="rights"/>
+        <xs:element ref="skin"/>
+        <xs:element ref="subject"/>
+        <xs:element ref="title"/>
+        <xs:element ref="type"/>
+        <xs:element ref="vocabulary"/>
+      </xs:choice>
+      <xs:attribute name="class" use="required" type="xs:NCName"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="creator" type="xs:string"/>
+  <xs:element name="date" type="xs:NMTOKEN"/>
+  <xs:element name="date.available" type="xs:NMTOKEN"/>
+  <xs:element name="date.created" type="xs:NMTOKEN"/>
+  <xs:element name="date.issued" type="xs:NMTOKEN"/>
+  <xs:element name="date.modified" type="xs:NMTOKEN"/>
+  <xs:element name="date.valid" type="xs:NMTOKEN"/>
+  <xs:element name="italicize" type="xs:string"/>
+  <xs:element name="language" type="xs:NCName"/>
+  <xs:element name="links" type="xs:string"/>
+  <xs:element name="markup" type="xs:string"/>
+  <xs:element name="rights" type="xs:string"/>
+  <xs:element name="skin" type="xs:NCName"/>
+  <xs:element name="subject" type="xs:string"/>
+  <xs:element name="title" type="xs:string"/>
+  <xs:element name="type" type="xs:NCName"/>
+  <xs:element name="vocabulary" type="xs:NCName"/>
+  <xs:element name="body">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element maxOccurs="unbounded" ref="object"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="object">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" ref="text"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="text">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:element ref="b"/>
+        <xs:element ref="i"/>
+        <xs:element ref="endnote"/>
+        <xs:element ref="u"/>
+        <xs:element ref="image.path"/>
+      </xs:choice>
+      <xs:attribute name="class" use="required" type="xs:NCName"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="endnote">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:element ref="i"/>
+        <xs:element ref="br"/>
+      </xs:choice>
+      <xs:attribute name="symbol" use="required" type="xs:NCName"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="br">
+    <xs:complexType/>
+  </xs:element>
+  <xs:element name="u">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="i"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="image.path" type="xs:string"/>
+  <xs:element name="i" type="xs:string"/>
+  <xs:element name="b" type="xs:string"/>
+</xs:schema>
diff --git a/data/doc/sisu/model/xml/output/rnc/dom.rnc b/data/doc/sisu/model/xml/output/rnc/dom.rnc
new file mode 100644
index 00000000..e8a3ed42
--- /dev/null
+++ b/data/doc/sisu/model/xml/output/rnc/dom.rnc
@@ -0,0 +1,144 @@
+#% 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 })+
+    }
+  }
diff --git a/data/doc/sisu/model/xml/output/rnc/sax.rnc b/data/doc/sisu/model/xml/output/rnc/sax.rnc
new file mode 100644
index 00000000..b242afb3
--- /dev/null
+++ b/data/doc/sisu/model/xml/output/rnc/sax.rnc
@@ -0,0 +1,164 @@
+# % sax output model, part of SiSU and distributed under the same license
+
+default namespace = ""
+namespace xlink = "http://www.w3.org/1999/xlink"
+
+start =
+  element document {
+    element head {
+      (br
+       | meta
+       | element creator {
+           attribute class { xsd:NCName },
+           (text
+            | element link {
+                attribute xlink:href { xsd:anyURI },
+                attribute xlink:type { xsd:NCName },
+                xsd:anyURI
+              })+
+         }
+       | element date {
+           attribute class { xsd:NCName },
+           xsd:NMTOKEN
+         }
+       | element date_available {
+           attribute class { xsd:NCName },
+           xsd:NMTOKEN
+         }
+       | element date_created {
+           attribute class { xsd:NCName },
+           xsd:NMTOKEN
+         }
+       | element date_issued {
+           attribute class { xsd:NCName },
+           xsd:NMTOKEN
+         }
+       | element date_modified {
+           attribute class { xsd:NCName },
+           xsd:NMTOKEN
+         }
+       | element date_valid {
+           attribute class { xsd:NCName },
+           xsd:NMTOKEN
+         }
+       | element keywords {
+           attribute class { xsd:NCName },
+           text
+         }
+       | element language {
+           attribute class { xsd:NCName },
+           xsd:NCName
+         }
+       | element meta { xsd:NMTOKEN }
+       | element rights {
+           attribute class { xsd:NCName },
+           (text | link)+
+         }
+       | element source {
+           attribute class { xsd:NCName },
+           text
+         }
+       | element structure {
+           attribute class { xsd:NCName },
+           text
+         }
+       | element subject {
+           attribute class { xsd:NCName },
+           text
+         }
+       | element title {
+           attribute class { xsd:NCName },
+           text
+         }
+       | element type {
+           attribute class { xsd:NCName },
+           text
+         }
+       | element source_control {
+           (br
+            | meta
+            | element sc {
+                attribute class { xsd:NCName },
+                text
+              })+
+         })+
+    },
+    element body {
+      element object {
+        attribute id { text },
+        element ocn {
+          text
+        },
+        element text {
+          attribute class { xsd:NCName },
+          (text
+           | b
+           | br
+           | del
+           | en
+           | i
+           | link
+           | sub
+           | sup
+           | u
+           | element image {
+               attribute alt { text }?,
+               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 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 endnote {
+          attribute notenumber { xsd:integer }?,
+          attribute symbol { text }?,
+          (element number { xsd:integer }
+           | element symbol { text }),
+          element note {
+            (text
+             | b
+             | br
+             | del
+             | i
+             | link
+             | sup
+             | u
+             | element em { xsd:NCName }
+             | element sub { xsd:NCName })+
+          }
+        }*
+      }+
+    }
+  }
+meta = element meta { text }
+br = element br { empty }
+b = element b { (text | en | i | link | sup)+ }
+i = element i { (text | b | br | sup)+ }
+en = element en { text }
+sub = element sub { xsd:NCName }
+sup = element sup { xsd:NCName }
+link =
+  element link {
+    attribute xlink:href { xsd:anyURI },
+    attribute xlink:type { xsd:NCName },
+    (xsd:anyURI | text | b | i | sup)+
+  }
+u = element u { (text | b | i)+ }
+del = element del { (text | b | i | link)+ }
diff --git a/data/doc/sisu/model/xml/output/rng/dom.rng b/data/doc/sisu/model/xml/output/rng/dom.rng
new file mode 100644
index 00000000..eea891ec
--- /dev/null
+++ b/data/doc/sisu/model/xml/output/rng/dom.rng
@@ -0,0 +1,438 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- dom output model, part of SiSU and under the same license -->
+<grammar xmlns:xlink="http://www.w3.org/1999/xlink" ns="" xmlns="http://relaxng.org/ns/structure/1.0" datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes">
+  <start>
+    <element name="document">
+      <element name="head">
+        <oneOrMore>
+          <element name="header">
+            <ref name="meta"/>
+            <choice>
+              <element name="creator">
+                <text/>
+              </element>
+              <element name="date">
+                <data type="NMTOKEN"/>
+              </element>
+              <element name="date_available">
+                <data type="NMTOKEN"/>
+              </element>
+              <element name="date_created">
+                <data type="NMTOKEN"/>
+              </element>
+              <element name="date_issued">
+                <data type="NMTOKEN"/>
+              </element>
+              <element name="date_modified">
+                <data type="NMTOKEN"/>
+              </element>
+              <element name="date_valid">
+                <data type="NMTOKEN"/>
+              </element>
+              <element name="keywords">
+                <text/>
+              </element>
+              <element name="language">
+                <data type="NCName"/>
+              </element>
+              <element name="rights">
+                <oneOrMore>
+                  <choice>
+                    <text/>
+                    <ref name="link"/>
+                  </choice>
+                </oneOrMore>
+              </element>
+              <element name="source">
+                <text/>
+              </element>
+              <element name="structure">
+                <text/>
+              </element>
+              <element name="subject">
+                <text/>
+              </element>
+              <element name="title">
+                <text/>
+              </element>
+              <element name="type">
+                <text/>
+              </element>
+              <element name="source_control">
+                <oneOrMore>
+                  <choice>
+                    <ref name="br"/>
+                    <ref name="meta"/>
+                    <element name="sc">
+                      <attribute name="class">
+                        <data type="NCName"/>
+                      </attribute>
+                      <text/>
+                    </element>
+                  </choice>
+                </oneOrMore>
+              </element>
+            </choice>
+          </element>
+        </oneOrMore>
+      </element>
+      <element name="body">
+        <oneOrMore>
+          <element name="heading1">
+            <ref name="heading"/>
+            <zeroOrMore>
+              <ref name="contents1"/>
+            </zeroOrMore>
+            <zeroOrMore>
+              <element name="heading2">
+                <ref name="heading"/>
+                <zeroOrMore>
+                  <ref name="contents1"/>
+                </zeroOrMore>
+                <zeroOrMore>
+                  <element name="heading3">
+                    <ref name="heading"/>
+                    <oneOrMore>
+                      <element name="contents1">
+                        <ref name="heading"/>
+                        <ref name="content"/>
+                        <zeroOrMore>
+                          <element name="contents2">
+                            <ref name="heading"/>
+                            <ref name="content"/>
+                            <zeroOrMore>
+                              <element name="contents3">
+                                <ref name="heading"/>
+                                <ref name="content"/>
+                              </element>
+                            </zeroOrMore>
+                          </element>
+                        </zeroOrMore>
+                      </element>
+                    </oneOrMore>
+                  </element>
+                </zeroOrMore>
+              </element>
+            </zeroOrMore>
+          </element>
+        </oneOrMore>
+      </element>
+    </element>
+  </start>
+  <define name="meta">
+    <element name="meta">
+      <text/>
+    </element>
+  </define>
+  <define name="br">
+    <element name="br">
+      <empty/>
+    </element>
+  </define>
+  <define name="heading">
+    <element name="heading">
+      <ref name="object"/>
+    </element>
+  </define>
+  <define name="contents1">
+    <element name="contents1">
+      <ref name="heading"/>
+      <ref name="content"/>
+      <zeroOrMore>
+        <element name="contents2">
+          <ref name="heading"/>
+          <ref name="content"/>
+          <zeroOrMore>
+            <element name="contents3">
+              <ref name="heading"/>
+              <ref name="content"/>
+            </element>
+          </zeroOrMore>
+        </element>
+      </zeroOrMore>
+    </element>
+  </define>
+  <define name="content">
+    <element name="content">
+      <zeroOrMore>
+        <ref name="object"/>
+      </zeroOrMore>
+    </element>
+  </define>
+<!--
+  <define name="contents1">
+    <element name="contents1">
+      <ref name="heading"/>
+      <element name="content">
+        <oneOrMore>
+          <ref name="object"/>
+        </oneOrMore>
+      </element>
+    </element>
+  </define>
+-->
+  <define name="object">
+    <element name="object">
+      <attribute name="id">
+        <data type="integer"/>
+      </attribute>
+      <element name="ocn">
+        <text/>
+      </element>
+      <optional>
+        <element name="nametag">
+          <text/>
+        </element>
+      </optional>
+      <choice>
+        <element name="table">
+          <attribute name="align">
+            <data type="NCName"/>
+          </attribute>
+          <attribute name="bgcolor">
+            <data type="NCName"/>
+          </attribute>
+          <attribute name="border">
+            <data type="integer"/>
+          </attribute>
+          <attribute name="cellpadding">
+            <data type="integer"/>
+          </attribute>
+          <attribute name="summary"/>
+          <attribute name="width"/>
+          <oneOrMore>
+            <element name="tr">
+              <oneOrMore>
+                <element name="td">
+                  <attribute name="valign">
+                    <data type="NCName"/>
+                  </attribute>
+                  <attribute name="width"/>
+                  <oneOrMore>
+                    <choice>
+                      <text/>
+                      <ref name="b"/>
+                      <ref name="i"/>
+                    </choice>
+                  </oneOrMore>
+                </element>
+              </oneOrMore>
+            </element>
+          </oneOrMore>
+        </element>
+        <element name="text">
+          <optional>
+            <attribute name="class">
+              <data type="NCName"/>
+            </attribute>
+          </optional>
+          <oneOrMore>
+            <choice>
+              <text/>
+              <ref name="b"/>
+              <ref name="del"/>
+              <ref name="endnote"/>
+              <ref name="i"/>
+              <ref name="link"/>
+              <element name="br">
+                <empty/>
+              </element>
+              <element name="endnote">
+                <element name="number">
+                  <data type="integer"/>
+                </element>
+                <element name="note">
+                  <oneOrMore>
+                    <choice>
+                      <text/>
+                      <ref name="i"/>
+                      <ref name="link"/>
+                    </choice>
+                  </oneOrMore>
+                </element>
+              </element>
+              <element name="image">
+                <attribute name="height">
+                  <data type="integer"/>
+                </attribute>
+                <attribute name="width">
+                  <data type="integer"/>
+                </attribute>
+                <attribute name="xlink:actuate">
+                  <data type="NCName"/>
+                </attribute>
+                <attribute name="xlink:href"/>
+                <attribute name="xlink:show">
+                  <data type="NCName"/>
+                </attribute>
+                <attribute name="xlink:type">
+                  <data type="NCName"/>
+                </attribute>
+              </element>
+              <element name="sub">
+                <text/>
+              </element>
+            </choice>
+          </oneOrMore>
+        </element>
+      </choice>
+<!--
+        <element name="text">
+          <optional>
+            <attribute name="class">
+              <data type="NCName"/>
+            </attribute>
+          </optional>
+          <oneOrMore>
+            <choice>
+              <text/>
+              <ref name="i"/>
+              <element name="b">
+                <oneOrMore>
+                  <choice>
+                    <text/>
+                    <ref name="i"/>
+                  </choice>
+                </oneOrMore>
+              </element>
+              <element name="endnote">
+                <choice>
+                  <element name="number">
+                    <data type="integer"/>
+                  </element>
+                  <element name="symbol">
+                    <text/>
+                  </element>
+                </choice>
+                <element name="note">
+                  <oneOrMore>
+                    <choice>
+                      <text/>
+                      <ref name="i"/>
+                      <element name="br">
+                        <empty/>
+                      </element>
+                      <element name="link">
+                        <attribute name="xlink:href">
+                          <data type="anyURI"/>
+                        </attribute>
+                        <attribute name="xlink:type">
+                          <data type="NCName"/>
+                        </attribute>
+                        <data type="anyURI"/>
+                      </element>
+                    </choice>
+                  </oneOrMore>
+                </element>
+              </element>
+              <element name="u">
+                <ref name="i"/>
+              </element>
+            </choice>
+          </oneOrMore>
+        </element>
+-->
+    </element>
+  </define>
+<!--
+  <define name="content">
+    <element name="content">
+      <zeroOrMore>
+        <ref name="object"/>
+      </zeroOrMore>
+    </element>
+  </define>
+  <define name="b">
+    <element name="b">
+      <text/>
+    </element>
+  </define>
+-->
+  <define name="i">
+    <element name="i">
+      <text/>
+    </element>
+  </define>
+  <define name="b">
+    <element name="i">
+      <text/>
+    </element>
+  </define>
+  <define name="u">
+    <element name="u">
+      <oneOrMore>
+        <choice>
+          <text/>
+          <ref name="b"/>
+          <ref name="i"/>
+        </choice>
+      </oneOrMore>
+    </element>
+  </define>
+  <define name="sub">
+    <element name="sub">
+      <data type="NCName"/>
+    </element>
+  </define>
+  <define name="sup">
+    <element name="sup">
+      <data type="NCName"/>
+    </element>
+  </define>
+  <define name="del">
+    <element name="del">
+      <oneOrMore>
+        <choice>
+          <text/>
+          <ref name="b"/>
+          <ref name="i"/>
+          <ref name="link"/>
+        </choice>
+      </oneOrMore>
+    </element>
+  </define>
+  <define name="link">
+    <element name="link">
+      <attribute name="xlink:href">
+        <data type="anyURI"/>
+      </attribute>
+      <attribute name="xlink:type">
+        <data type="NCName"/>
+      </attribute>
+      <data type="anyURI"/>
+    </element>
+  </define>
+  <define name="endnote">
+    <element name="endnote">
+      <choice>
+        <element name="number">
+          <data type="integer"/>
+        </element>
+        <element name="symbol">
+          <text/>
+        </element>
+      </choice>
+      <element name="note">
+        <oneOrMore>
+          <choice>
+            <text/>
+            <ref name="b"/>
+            <ref name="br"/>
+            <ref name="del"/>
+            <ref name="i"/>
+            <ref name="link"/>
+            <ref name="sub"/>
+            <ref name="sup"/>
+            <ref name="u"/>
+            <element name="em">
+              <data type="NCName"/>
+            </element>
+            <element name="sub">
+              <data type="NCName"/>
+            </element>
+          </choice>
+        </oneOrMore>
+      </element>
+    </element>
+  </define>
+</grammar>
diff --git a/data/doc/sisu/model/xml/output/rng/sax.rng b/data/doc/sisu/model/xml/output/rng/sax.rng
new file mode 100644
index 00000000..a2df4fed
--- /dev/null
+++ b/data/doc/sisu/model/xml/output/rng/sax.rng
@@ -0,0 +1,374 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- % sax output model, part of SiSU and distributed under the same license -->
+<grammar xmlns:xlink="http://www.w3.org/1999/xlink" ns="" xmlns="http://relaxng.org/ns/structure/1.0" datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes">
+  <start>
+    <element name="document">
+      <element name="head">
+        <oneOrMore>
+          <choice>
+            <ref name="br"/>
+            <ref name="meta"/>
+            <element name="creator">
+              <attribute name="class">
+                <data type="NCName"/>
+              </attribute>
+              <oneOrMore>
+                <choice>
+                  <text/>
+                  <element name="link">
+                    <attribute name="xlink:href">
+                      <data type="anyURI"/>
+                    </attribute>
+                    <attribute name="xlink:type">
+                      <data type="NCName"/>
+                    </attribute>
+                    <data type="anyURI"/>
+                  </element>
+                </choice>
+              </oneOrMore>
+            </element>
+            <element name="date">
+              <attribute name="class">
+                <data type="NCName"/>
+              </attribute>
+              <data type="NMTOKEN"/>
+            </element>
+            <element name="date_available">
+              <attribute name="class">
+                <data type="NCName"/>
+              </attribute>
+              <data type="NMTOKEN"/>
+            </element>
+            <element name="date_created">
+              <attribute name="class">
+                <data type="NCName"/>
+              </attribute>
+              <data type="NMTOKEN"/>
+            </element>
+            <element name="date_issued">
+              <attribute name="class">
+                <data type="NCName"/>
+              </attribute>
+              <data type="NMTOKEN"/>
+            </element>
+            <element name="date_modified">
+              <attribute name="class">
+                <data type="NCName"/>
+              </attribute>
+              <data type="NMTOKEN"/>
+            </element>
+            <element name="date_valid">
+              <attribute name="class">
+                <data type="NCName"/>
+              </attribute>
+              <data type="NMTOKEN"/>
+            </element>
+            <element name="keywords">
+              <attribute name="class">
+                <data type="NCName"/>
+              </attribute>
+              <text/>
+            </element>
+            <element name="language">
+              <attribute name="class">
+                <data type="NCName"/>
+              </attribute>
+              <data type="NCName"/>
+            </element>
+            <element name="meta">
+              <data type="NMTOKEN"/>
+            </element>
+            <element name="rights">
+              <attribute name="class">
+                <data type="NCName"/>
+              </attribute>
+              <oneOrMore>
+                <choice>
+                  <text/>
+                  <ref name="link"/>
+                </choice>
+              </oneOrMore>
+            </element>
+            <element name="source">
+              <attribute name="class">
+                <data type="NCName"/>
+              </attribute>
+              <text/>
+            </element>
+            <element name="structure">
+              <attribute name="class">
+                <data type="NCName"/>
+              </attribute>
+              <text/>
+            </element>
+            <element name="subject">
+              <attribute name="class">
+                <data type="NCName"/>
+              </attribute>
+              <text/>
+            </element>
+            <element name="title">
+              <attribute name="class">
+                <data type="NCName"/>
+              </attribute>
+              <text/>
+            </element>
+            <element name="type">
+              <attribute name="class">
+                <data type="NCName"/>
+              </attribute>
+              <text/>
+            </element>
+            <element name="source_control">
+              <oneOrMore>
+                <choice>
+                  <ref name="br"/>
+                  <ref name="meta"/>
+                  <element name="sc">
+                    <attribute name="class">
+                      <data type="NCName"/>
+                    </attribute>
+                    <text/>
+                  </element>
+                </choice>
+              </oneOrMore>
+            </element>
+          </choice>
+        </oneOrMore>
+      </element>
+      <element name="body">
+        <oneOrMore>
+          <element name="object">
+            <attribute name="id"/>
+            <!--
+              <attribute name="id">
+                <data type="integer"/>
+              </attribute>
+            -->
+            <element name="ocn">
+              <text/>
+              <!--
+                <data type="integer"/>
+              -->
+            </element>
+            <optional>
+              <element name="text">
+                <attribute name="class">
+                  <data type="NCName"/>
+                </attribute>
+                <oneOrMore>
+                  <choice>
+                    <text/>
+                    <ref name="b"/>
+                    <ref name="br"/>
+                    <ref name="del"/>
+                    <ref name="en"/>
+                    <ref name="i"/>
+                    <ref name="link"/>
+                    <ref name="sub"/>
+                    <ref name="sup"/>
+                    <ref name="u"/>
+                    <element name="image">
+                      <optional>
+                        <attribute name="alt"/>
+                      </optional>
+                      <optional>
+                        <attribute name="height">
+                          <data type="integer"/>
+                        </attribute>
+                      </optional>
+                      <optional>
+                        <attribute name="width">
+                          <data type="integer"/>
+                        </attribute>
+                      </optional>
+                      <attribute name="xlink:actuate">
+                        <data type="NCName"/>
+                      </attribute>
+                      <attribute name="xlink:href"/>
+                      <attribute name="xlink:show">
+                        <data type="NCName"/>
+                      </attribute>
+                      <attribute name="xlink:type">
+                        <data type="NCName"/>
+                      </attribute>
+                    </element>
+                  </choice>
+                </oneOrMore>
+              </element>
+            </optional>
+            <optional>
+              <element name="table">
+                <attribute name="align">
+                  <data type="NCName"/>
+                </attribute>
+                <attribute name="bgcolor">
+                  <data type="NCName"/>
+                </attribute>
+                <attribute name="border">
+                  <data type="integer"/>
+                </attribute>
+                <attribute name="cellpadding">
+                  <data type="integer"/>
+                </attribute>
+                <attribute name="summary"/>
+                <attribute name="width"/>
+                <oneOrMore>
+                  <element name="tr">
+                    <oneOrMore>
+                      <element name="td">
+                        <attribute name="valign">
+                          <data type="NCName"/>
+                        </attribute>
+                        <attribute name="width"/>
+                        <oneOrMore>
+                          <choice>
+                            <text/>
+                            <ref name="b"/>
+                            <ref name="i"/>
+                          </choice>
+                        </oneOrMore>
+                      </element>
+                    </oneOrMore>
+                  </element>
+                </oneOrMore>
+              </element>
+            </optional>
+            <zeroOrMore>
+              <element name="endnote">
+                <optional>
+                  <attribute name="notenumber">
+                    <data type="integer"/>
+                  </attribute>
+                </optional>
+                <optional>
+                  <attribute name="symbol"/>
+                </optional>
+                <choice>
+                  <element name="number">
+                    <data type="integer"/>
+                  </element>
+                  <element name="symbol">
+                    <text/>
+                  </element>
+                </choice>
+                <element name="note">
+                  <oneOrMore>
+                    <choice>
+                      <text/>
+                      <ref name="b"/>
+                      <ref name="br"/>
+                      <ref name="del"/>
+                      <ref name="i"/>
+                      <ref name="link"/>
+                      <ref name="sup"/>
+                      <ref name="u"/>
+                      <element name="em">
+                        <data type="NCName"/>
+                      </element>
+                      <element name="sub">
+                        <data type="NCName"/>
+                      </element>
+                    </choice>
+                  </oneOrMore>
+                </element>
+              </element>
+            </zeroOrMore>
+          </element>
+        </oneOrMore>
+      </element>
+    </element>
+  </start>
+  <define name="meta">
+    <element name="meta">
+      <text/>
+    </element>
+  </define>
+  <define name="br">
+    <element name="br">
+      <empty/>
+    </element>
+  </define>
+  <define name="b">
+    <element name="b">
+      <oneOrMore>
+        <choice>
+          <text/>
+          <ref name="en"/>
+          <ref name="i"/>
+          <ref name="link"/>
+          <ref name="sup"/>
+        </choice>
+      </oneOrMore>
+    </element>
+  </define>
+  <define name="i">
+    <element name="i">
+      <oneOrMore>
+        <choice>
+          <text/>
+          <ref name="b"/>
+          <ref name="br"/>
+          <ref name="sup"/>
+        </choice>
+      </oneOrMore>
+    </element>
+  </define>
+  <define name="en">
+    <element name="en">
+      <text/>
+    </element>
+  </define>
+  <define name="sub">
+    <element name="sub">
+      <data type="NCName"/>
+    </element>
+  </define>
+  <define name="sup">
+    <element name="sup">
+      <data type="NCName"/>
+    </element>
+  </define>
+  <define name="link">
+    <element name="link">
+      <attribute name="xlink:href">
+        <data type="anyURI"/>
+      </attribute>
+      <attribute name="xlink:type">
+        <data type="NCName"/>
+      </attribute>
+      <oneOrMore>
+        <choice>
+          <data type="anyURI"/>
+          <text/>
+          <ref name="b"/>
+          <ref name="i"/>
+          <ref name="sup"/>
+        </choice>
+      </oneOrMore>
+    </element>
+  </define>
+  <define name="u">
+    <element name="u">
+      <oneOrMore>
+        <choice>
+          <text/>
+          <ref name="b"/>
+          <ref name="i"/>
+        </choice>
+      </oneOrMore>
+    </element>
+  </define>
+  <define name="del">
+    <element name="del">
+      <oneOrMore>
+        <choice>
+          <text/>
+          <ref name="b"/>
+          <ref name="i"/>
+          <ref name="link"/>
+        </choice>
+      </oneOrMore>
+    </element>
+  </define>
+</grammar>
diff --git a/data/doc/sisu/model/xml/output/xsd/dom.xsd b/data/doc/sisu/model/xml/output/xsd/dom.xsd
new file mode 100644
index 00000000..3132338a
--- /dev/null
+++ b/data/doc/sisu/model/xml/output/xsd/dom.xsd
@@ -0,0 +1,327 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- dom output model, part of SiSU and under the same license -->
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" xmlns:xlink="http://www.w3.org/1999/xlink">
+  <xs:import namespace="http://www.w3.org/1999/xlink" schemaLocation="xlink.xsd"/>
+  <xs:element name="document">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="head"/>
+        <xs:element ref="body"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="head">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element maxOccurs="unbounded" ref="header"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="header">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="meta"/>
+        <xs:choice>
+          <xs:element ref="creator"/>
+          <xs:element ref="date"/>
+          <xs:element ref="date_available"/>
+          <xs:element ref="date_created"/>
+          <xs:element ref="date_issued"/>
+          <xs:element ref="date_modified"/>
+          <xs:element ref="date_valid"/>
+          <xs:element ref="keywords"/>
+          <xs:element ref="language"/>
+          <xs:element ref="rights"/>
+          <xs:element ref="source"/>
+          <xs:element ref="structure"/>
+          <xs:element ref="subject"/>
+          <xs:element ref="title"/>
+          <xs:element ref="type"/>
+          <xs:element ref="source_control"/>
+        </xs:choice>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="creator" type="xs:string"/>
+  <xs:element name="date" type="xs:NMTOKEN"/>
+  <xs:element name="date_available" type="xs:NMTOKEN"/>
+  <xs:element name="date_created" type="xs:NMTOKEN"/>
+  <xs:element name="date_issued" type="xs:NMTOKEN"/>
+  <xs:element name="date_modified" type="xs:NMTOKEN"/>
+  <xs:element name="date_valid" type="xs:NMTOKEN"/>
+  <xs:element name="keywords" type="xs:string"/>
+  <xs:element name="language" type="xs:NCName"/>
+  <xs:element name="rights">
+    <xs:complexType mixed="true">
+      <xs:sequence>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="link"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="source" type="xs:string"/>
+  <xs:element name="structure" type="xs:string"/>
+  <xs:element name="subject" type="xs:string"/>
+  <xs:element name="title" type="xs:string"/>
+  <xs:element name="type" type="xs:string"/>
+  <xs:element name="source_control">
+    <xs:complexType>
+      <xs:choice maxOccurs="unbounded">
+        <xs:element ref="br"/>
+        <xs:element ref="meta"/>
+        <xs:element ref="sc"/>
+      </xs:choice>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="sc">
+    <xs:complexType mixed="true">
+      <xs:attribute name="class" use="required" type="xs:NCName"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="body">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element maxOccurs="unbounded" ref="heading1"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="heading1">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="heading"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="contents1"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="heading2"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="heading2">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="heading"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="contents1"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="heading3"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="heading3">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="heading"/>
+        <xs:element maxOccurs="unbounded" ref="contents1"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="contents1">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="heading"/>
+        <xs:element ref="content"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="contents2"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="contents2">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="heading"/>
+        <xs:element ref="content"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="contents3"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="contents3">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="heading"/>
+        <xs:element ref="content"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="meta" type="xs:string"/>
+  <xs:element name="br">
+    <xs:complexType/>
+  </xs:element>
+  <xs:element name="heading">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="object"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="content">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="object"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <!--
+    <define name="contents1">
+      <element name="contents1">
+        <ref name="heading"/>
+        <element name="content">
+          <oneOrMore>
+            <ref name="object"/>
+          </oneOrMore>
+        </element>
+      </element>
+    </define>
+  -->
+  <xs:element name="object">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="ocn"/>
+        <xs:element minOccurs="0" ref="nametag"/>
+        <xs:choice>
+          <xs:element ref="table"/>
+          <xs:element ref="text"/>
+        </xs:choice>
+      </xs:sequence>
+      <xs:attribute name="id" use="required" type="xs:integer"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="ocn" type="xs:string"/>
+  <xs:element name="nametag" type="xs:string"/>
+  <xs:element name="table">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element maxOccurs="unbounded" ref="tr"/>
+      </xs:sequence>
+      <xs:attribute name="align" use="required" type="xs:NCName"/>
+      <xs:attribute name="bgcolor" use="required" type="xs:NCName"/>
+      <xs:attribute name="border" use="required" type="xs:integer"/>
+      <xs:attribute name="cellpadding" use="required" type="xs:integer"/>
+      <xs:attribute name="summary" use="required"/>
+      <xs:attribute name="width" use="required"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="tr">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element maxOccurs="unbounded" ref="td"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="td">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:element ref="i"/>
+        <xs:element ref="i"/>
+      </xs:choice>
+      <xs:attribute name="valign" use="required" type="xs:NCName"/>
+      <xs:attribute name="width" use="required"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="text">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:element ref="i"/>
+        <xs:element ref="del"/>
+        <xs:element ref="endnote"/>
+        <xs:element ref="i"/>
+        <xs:element ref="link"/>
+        <xs:element ref="br"/>
+        <xs:element name="endnote">
+          <xs:complexType>
+            <xs:sequence>
+              <xs:element ref="number"/>
+              <xs:element name="note">
+                <xs:complexType mixed="true">
+                  <xs:choice minOccurs="0" maxOccurs="unbounded">
+                    <xs:element ref="i"/>
+                    <xs:element ref="link"/>
+                  </xs:choice>
+                </xs:complexType>
+              </xs:element>
+            </xs:sequence>
+          </xs:complexType>
+        </xs:element>
+        <xs:element ref="image"/>
+        <xs:element name="sub" type="xs:string"/>
+      </xs:choice>
+      <xs:attribute name="class" type="xs:NCName"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="number" type="xs:integer"/>
+  <xs:element name="image">
+    <xs:complexType>
+      <xs:attribute name="height" use="required" type="xs:integer"/>
+      <xs:attribute name="width" use="required" type="xs:integer"/>
+      <xs:attribute ref="xlink:actuate" use="required"/>
+      <xs:attributeGroup ref="xlink:href"/>
+      <xs:attribute ref="xlink:show" use="required"/>
+      <xs:attribute ref="xlink:type" use="required"/>
+    </xs:complexType>
+  </xs:element>
+  <!--
+    <define name="content">
+      <element name="content">
+        <zeroOrMore>
+          <ref name="object"/>
+        </zeroOrMore>
+      </element>
+    </define>
+    <define name="b">
+      <element name="b">
+        <text/>
+      </element>
+    </define>
+  -->
+  <xs:element name="i" type="xs:string"/>
+  <xs:element name="u">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:element ref="i"/>
+        <xs:element ref="i"/>
+      </xs:choice>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="sub" type="xs:NCName"/>
+  <xs:element name="sup" type="xs:NCName"/>
+  <xs:element name="del">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:element ref="i"/>
+        <xs:element ref="i"/>
+        <xs:element ref="link"/>
+      </xs:choice>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="link">
+    <xs:complexType>
+      <xs:simpleContent>
+        <xs:extension base="xs:anyURI">
+          <xs:attributeGroup ref="xlink:href1"/>
+          <xs:attribute ref="xlink:type" use="required"/>
+        </xs:extension>
+      </xs:simpleContent>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="endnote">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:choice>
+          <xs:element ref="number"/>
+          <xs:element ref="symbol"/>
+        </xs:choice>
+        <xs:element name="note">
+          <xs:complexType mixed="true">
+            <xs:choice minOccurs="0" maxOccurs="unbounded">
+              <xs:element ref="i"/>
+              <xs:element ref="br"/>
+              <xs:element ref="del"/>
+              <xs:element ref="i"/>
+              <xs:element ref="link"/>
+              <xs:element ref="sub"/>
+              <xs:element ref="sup"/>
+              <xs:element ref="u"/>
+              <xs:element ref="em"/>
+              <xs:element ref="sub"/>
+            </xs:choice>
+          </xs:complexType>
+        </xs:element>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="symbol" type="xs:string"/>
+  <xs:element name="em" type="xs:NCName"/>
+</xs:schema>
diff --git a/data/doc/sisu/model/xml/output/xsd/sax.xsd b/data/doc/sisu/model/xml/output/xsd/sax.xsd
new file mode 100644
index 00000000..db6eb147
--- /dev/null
+++ b/data/doc/sisu/model/xml/output/xsd/sax.xsd
@@ -0,0 +1,332 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- % sax output model, part of SiSU and distributed under the same license -->
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" xmlns:xlink="http://www.w3.org/1999/xlink">
+  <xs:import namespace="http://www.w3.org/1999/xlink" schemaLocation="xlink.xsd"/>
+  <xs:element name="document">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="head"/>
+        <xs:element ref="body"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="head">
+    <xs:complexType>
+      <xs:choice maxOccurs="unbounded">
+        <xs:element ref="br"/>
+        <xs:element ref="meta"/>
+        <xs:element ref="creator"/>
+        <xs:element ref="date"/>
+        <xs:element ref="date_available"/>
+        <xs:element ref="date_created"/>
+        <xs:element ref="date_issued"/>
+        <xs:element ref="date_modified"/>
+        <xs:element ref="date_valid"/>
+        <xs:element ref="keywords"/>
+        <xs:element ref="language"/>
+        <xs:element name="meta" type="xs:NMTOKEN"/>
+        <xs:element ref="rights"/>
+        <xs:element ref="source"/>
+        <xs:element ref="structure"/>
+        <xs:element ref="subject"/>
+        <xs:element ref="title"/>
+        <xs:element ref="type"/>
+        <xs:element ref="source_control"/>
+      </xs:choice>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="creator">
+    <xs:complexType mixed="true">
+      <xs:sequence>
+        <xs:element minOccurs="0" maxOccurs="unbounded" name="link">
+          <xs:complexType>
+            <xs:simpleContent>
+              <xs:extension base="xs:anyURI">
+                <xs:attributeGroup ref="xlink:href"/>
+                <xs:attribute ref="xlink:type" use="required"/>
+              </xs:extension>
+            </xs:simpleContent>
+          </xs:complexType>
+        </xs:element>
+      </xs:sequence>
+      <xs:attribute name="class" use="required" type="xs:NCName"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="date">
+    <xs:complexType>
+      <xs:simpleContent>
+        <xs:extension base="xs:NMTOKEN">
+          <xs:attribute name="class" use="required" type="xs:NCName"/>
+        </xs:extension>
+      </xs:simpleContent>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="date_available">
+    <xs:complexType>
+      <xs:simpleContent>
+        <xs:extension base="xs:NMTOKEN">
+          <xs:attribute name="class" use="required" type="xs:NCName"/>
+        </xs:extension>
+      </xs:simpleContent>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="date_created">
+    <xs:complexType>
+      <xs:simpleContent>
+        <xs:extension base="xs:NMTOKEN">
+          <xs:attribute name="class" use="required" type="xs:NCName"/>
+        </xs:extension>
+      </xs:simpleContent>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="date_issued">
+    <xs:complexType>
+      <xs:simpleContent>
+        <xs:extension base="xs:NMTOKEN">
+          <xs:attribute name="class" use="required" type="xs:NCName"/>
+        </xs:extension>
+      </xs:simpleContent>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="date_modified">
+    <xs:complexType>
+      <xs:simpleContent>
+        <xs:extension base="xs:NMTOKEN">
+          <xs:attribute name="class" use="required" type="xs:NCName"/>
+        </xs:extension>
+      </xs:simpleContent>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="date_valid">
+    <xs:complexType>
+      <xs:simpleContent>
+        <xs:extension base="xs:NMTOKEN">
+          <xs:attribute name="class" use="required" type="xs:NCName"/>
+        </xs:extension>
+      </xs:simpleContent>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="keywords">
+    <xs:complexType mixed="true">
+      <xs:attribute name="class" use="required" type="xs:NCName"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="language">
+    <xs:complexType>
+      <xs:simpleContent>
+        <xs:extension base="xs:NCName">
+          <xs:attribute name="class" use="required" type="xs:NCName"/>
+        </xs:extension>
+      </xs:simpleContent>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="rights">
+    <xs:complexType mixed="true">
+      <xs:sequence>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="link"/>
+      </xs:sequence>
+      <xs:attribute name="class" use="required" type="xs:NCName"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="source">
+    <xs:complexType mixed="true">
+      <xs:attribute name="class" use="required" type="xs:NCName"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="structure">
+    <xs:complexType mixed="true">
+      <xs:attribute name="class" use="required" type="xs:NCName"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="subject">
+    <xs:complexType mixed="true">
+      <xs:attribute name="class" use="required" type="xs:NCName"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="title">
+    <xs:complexType mixed="true">
+      <xs:attribute name="class" use="required" type="xs:NCName"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="type">
+    <xs:complexType mixed="true">
+      <xs:attribute name="class" use="required" type="xs:NCName"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="source_control">
+    <xs:complexType>
+      <xs:choice maxOccurs="unbounded">
+        <xs:element ref="br"/>
+        <xs:element ref="meta"/>
+        <xs:element ref="sc"/>
+      </xs:choice>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="sc">
+    <xs:complexType mixed="true">
+      <xs:attribute name="class" use="required" type="xs:NCName"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="body">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element maxOccurs="unbounded" ref="object"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="object">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="ocn"/>
+        <xs:element minOccurs="0" ref="text"/>
+        <xs:element minOccurs="0" ref="table"/>
+        <xs:element minOccurs="0" maxOccurs="unbounded" ref="endnote"/>
+      </xs:sequence>
+      <xs:attribute name="id" use="required"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="ocn" type="xs:string"/>
+  <xs:element name="text">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:element ref="b"/>
+        <xs:element ref="br"/>
+        <xs:element ref="del"/>
+        <xs:element ref="en"/>
+        <xs:element ref="i"/>
+        <xs:element ref="link"/>
+        <xs:element ref="sub"/>
+        <xs:element ref="sup"/>
+        <xs:element ref="u"/>
+        <xs:element ref="image"/>
+      </xs:choice>
+      <xs:attribute name="class" use="required" type="xs:NCName"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="image">
+    <xs:complexType>
+      <xs:attribute name="alt"/>
+      <xs:attribute name="height" type="xs:integer"/>
+      <xs:attribute name="width" type="xs:integer"/>
+      <xs:attribute ref="xlink:actuate" use="required"/>
+      <xs:attributeGroup ref="xlink:href1"/>
+      <xs:attribute ref="xlink:show" use="required"/>
+      <xs:attribute ref="xlink:type" use="required"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="table">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element maxOccurs="unbounded" ref="tr"/>
+      </xs:sequence>
+      <xs:attribute name="align" use="required" type="xs:NCName"/>
+      <xs:attribute name="bgcolor" use="required" type="xs:NCName"/>
+      <xs:attribute name="border" use="required" type="xs:integer"/>
+      <xs:attribute name="cellpadding" use="required" type="xs:integer"/>
+      <xs:attribute name="summary" use="required"/>
+      <xs:attribute name="width" use="required"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="tr">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element maxOccurs="unbounded" ref="td"/>
+      </xs:sequence>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="td">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:element ref="b"/>
+        <xs:element ref="i"/>
+      </xs:choice>
+      <xs:attribute name="valign" use="required" type="xs:NCName"/>
+      <xs:attribute name="width" use="required"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="endnote">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:choice>
+          <xs:element ref="number"/>
+          <xs:element ref="symbol"/>
+        </xs:choice>
+        <xs:element ref="note"/>
+      </xs:sequence>
+      <xs:attribute name="notenumber" type="xs:integer"/>
+      <xs:attribute name="symbol"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="number" type="xs:integer"/>
+  <xs:element name="symbol" type="xs:string"/>
+  <xs:element name="note">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:element ref="b"/>
+        <xs:element ref="br"/>
+        <xs:element ref="del"/>
+        <xs:element ref="i"/>
+        <xs:element ref="link"/>
+        <xs:element ref="sup"/>
+        <xs:element ref="u"/>
+        <xs:element ref="em"/>
+        <xs:element ref="sub"/>
+      </xs:choice>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="em" type="xs:NCName"/>
+  <xs:element name="sub" type="xs:NCName"/>
+  <xs:element name="meta" type="xs:string"/>
+  <xs:element name="br">
+    <xs:complexType/>
+  </xs:element>
+  <xs:element name="b">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:element ref="en"/>
+        <xs:element ref="i"/>
+        <xs:element ref="link"/>
+        <xs:element ref="sup"/>
+      </xs:choice>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="i">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:element ref="b"/>
+        <xs:element ref="br"/>
+        <xs:element ref="sup"/>
+      </xs:choice>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="en" type="xs:string"/>
+  <xs:element name="sup" type="xs:NCName"/>
+  <xs:element name="link">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:element ref="b"/>
+        <xs:element ref="i"/>
+        <xs:element ref="sup"/>
+      </xs:choice>
+      <xs:attributeGroup ref="xlink:href"/>
+      <xs:attribute ref="xlink:type" use="required"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="u">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:element ref="b"/>
+        <xs:element ref="i"/>
+      </xs:choice>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="del">
+    <xs:complexType mixed="true">
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:element ref="b"/>
+        <xs:element ref="i"/>
+        <xs:element ref="link"/>
+      </xs:choice>
+    </xs:complexType>
+  </xs:element>
+</xs:schema>