Current Freeplane File Format

Original FreeMind File Format

The original FreeMind format was never described completely formally, but there is some documentation:

• Freeplane's file format is described in the Wiki.
• There is a schema validation in SVN (integration branch), with a latest revision.

Note 

the above documentation is outdated in regard to elements introduced by Freeplane, like connector labels, attributes, scripts, user icons and (scalable) images embedded in the map.

Freeplane's version of it

The following schema takes the schema pointed at in the previous chapter and completes it with Freeplane specific extensions (in bold for easy identification):

<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">

 <xs:element name='Parameters'>
  <xs:complexType>
	  <!--Is the time management plugin.-->
   <xs:attribute name='REMINDUSERAT' type='xs:integer' use='optional'/>
  </xs:complexType>
 </xs:element>

 <!--Used for node notes.-->
 <xs:element name='text'>
  <xs:complexType/>
 </xs:element>

 <!-- BEGIN ATTRIBUTES -->

 <xs:element name='attribute_value'>
  <xs:complexType>
   <xs:attribute name='VALUE' type='xs:string' use='required'/>
  </xs:complexType>
 </xs:element>

 <xs:element name='attribute_name'>
  <xs:complexType>
   <xs:choice minOccurs='0' maxOccurs='unbounded'>
    <xs:element ref='attribute_value'/>
   </xs:choice>
   <xs:attribute name='NAME' type='xs:string' use='required'/>
   <xs:attribute name='MANUAL' type='xs:boolean' use='optional' />
   <xs:attribute name='RESTRICTED' type='xs:boolean' use='optional' />
   <xs:attribute name='VISIBLE' type='xs:boolean' use='optional' />
  </xs:complexType>
 </xs:element>

 <xs:element name='attribute_registry'>
  <xs:complexType>
   <xs:choice minOccurs='0' maxOccurs='unbounded'>
    <xs:element ref='attribute_name'/>
   </xs:choice>
   <xs:attribute name='SHOW_ATTRIBUTES' use='optional'>
    <xs:simpleType>
     <xs:restriction base='xs:string'>
      <xs:enumeration value='selected'/>
      <xs:enumeration value='hide'/>
     </xs:restriction>
    </xs:simpleType>
   </xs:attribute>
  </xs:complexType>
 </xs:element>

 <xs:element name='attribute_layout'>
  <xs:complexType>
   <xs:attribute name='NAME_WIDTH'  type='xs:integer' use='optional'/>
   <xs:attribute name='VALUE_WIDTH' type='xs:integer' use='optional'/>
  </xs:complexType>
 </xs:element>

 <xs:element name='attribute'>
  <xs:complexType>
   <xs:attribute name='NAME'  type='xs:string' use='required'/>
   <xs:attribute name='VALUE' type='xs:string' use='required'/>
  </xs:complexType>
 </xs:element>

 <!-- END ATTRIBUTES -->

 <xs:element name='arrowlink'>
  <xs:complexType>
   <xs:attribute name='COLOR' type='xs:string' use='optional'/>
   <xs:attribute name='DESTINATION' type='xs:string' use='required'/>
   <xs:attribute name='ENDARROW' type='xs:string' use='optional'/>
   <xs:attribute name='ENDINCLINATION' type='xs:string' use='optional'/>
   <xs:attribute name='ID' type='xs:string' use='optional'/>
   <xs:attribute name='STARTARROW' type='xs:string' use='optional'/>
   <xs:attribute name='STARTINCLINATION' type='xs:string' use='optional'/>
   <xs:attribute name='SOURCE_LABEL' type='xs:string' use='optional'/>
   <xs:attribute name='MIDDLE_LABEL' type='xs:string' use='optional'/>
   <xs:attribute name='TARGET_LABEL' type='xs:string' use='optional'/>
   <xs:attribute name='EDGE_LIKE' type='xs:boolean' use='optional'/>
  </xs:complexType>
 </xs:element>

 <xs:element name='cloud'>
  <xs:complexType>
   <xs:attribute name='COLOR' type='xs:string' use='optional'/>
   <xs:attribute name='WIDTH' type='xs:integer' use='optional'/>
  </xs:complexType>
 </xs:element>

 <xs:element name='edge'>
  <xs:complexType>
   <xs:attribute name='COLOR' type='xs:string' use='optional'/>
   <xs:attribute name='STYLE' type='xs:string' use='optional'/>
   <xs:attribute name='WIDTH' type='xs:string' use='optional'/>
  </xs:complexType>
 </xs:element>

 <xs:element name='font'>
  <xs:complexType>
   <xs:attribute name='BOLD' use='optional'>
    <xs:simpleType>
     <xs:restriction base='xs:string'>
      <xs:enumeration value='true'/>
      <xs:enumeration value='false'/>
     </xs:restriction>
    </xs:simpleType>
   </xs:attribute>
   <xs:attribute name='ITALIC' use='optional'>
    <xs:simpleType>
     <xs:restriction base='xs:string'>
      <xs:enumeration value='true'/>
      <xs:enumeration value='false'/>
     </xs:restriction>
    </xs:simpleType>
   </xs:attribute>
   <xs:attribute name='NAME' type='xs:string' use='optional'/>
   <xs:attribute name='SIZE' type='xs:integer' use='optional'/>
  </xs:complexType>
 </xs:element>

 <xs:element name='hook'>
  <xs:complexType>
   <xs:sequence>
    <xs:element ref='Parameters' minOccurs='0' maxOccurs='1'/>
    <xs:element ref='text' minOccurs='0' maxOccurs='1'/>
   </xs:sequence>
   <xs:attribute name='NAME' type='xs:string' use='required'/>
   <!-- for embedded images NAME="ExternalObject" -->
   <xs:attribute name='URI'  type='xs:anyURI' use='optional'/>
   <xs:attribute name='SIZE' type='xs:decimal' use='optional'/>
   <!-- for map config info NAME="MapStyle" -->
   <xs:attribute name='max_node_width'  type='xs:integer' use='optional'/>
   <xs:attribute name='zoom' type='xs:decimal' use='optional'/>
   <!-- for equations NAME="plugins/latex/LatexNodeHook.properties" -->
   <xs:attribute name='EQUATION' type='xs:string' use='optional'/>
  </xs:complexType>
 </xs:element>

 <xs:element name='icon'>
  <xs:complexType>
   <xs:attribute name='BUILTIN' type='xs:string' use='required'/>
  </xs:complexType>
 </xs:element>

 <xs:element name='html'>
  <xs:complexType>
   <xs:sequence>
    <!--Anything that is valid XML, but should be http://www.w3.org/1999/xhtml -->
    <xs:any namespace="##any" minOccurs="0" maxOccurs="unbounded" processContents="skip"/>
   </xs:sequence>
  </xs:complexType>
 </xs:element>

 <xs:element name='richcontent'>
  <xs:complexType>
   <!-- And contains XHTML as unique child:-->
   <xs:sequence>
    <xs:element ref='html' minOccurs='1' maxOccurs='1'/>
   </xs:sequence>
   <!--Currently, only NODE or NOTE is allowed.-->
   <xs:attribute name='TYPE' use='required'>
    <xs:simpleType>
     <xs:restriction base='xs:string'>
      <xs:enumeration value='NODE'/>
      <xs:enumeration value='NOTE'/>
     </xs:restriction>
    </xs:simpleType>
   </xs:attribute>
  </xs:complexType>
 </xs:element>

 <xs:element name='map'>
  <xs:complexType>
   <xs:sequence>
    <xs:element ref='attribute_registry' minOccurs='0' maxOccurs='1'/>
    <xs:element ref='node' minOccurs='1' maxOccurs='1' />
   </xs:sequence>
   <xs:attribute name='version' type='xs:string' use='required'/>
  </xs:complexType>
 </xs:element>

 <xs:element name='node'>
  <xs:complexType>
   <xs:choice minOccurs='0' maxOccurs='unbounded'>
    <xs:element ref='arrowlink'/>
    <xs:element ref='cloud'/>
    <xs:element ref='edge'/>
    <xs:element ref='font'/>
    <xs:element ref='hook'/>
    <xs:element ref='icon'/>
    <xs:element ref='node'/>
    <!-- For nodes with extended formatting content or for notes to nodes. -->
    <xs:element ref='richcontent'/>
    <xs:element ref='attribute_layout'/>
    <xs:element ref='attribute'/>
   </xs:choice>
   <xs:attribute name='BACKGROUND_COLOR' type='xs:string' use='optional'/>
   <xs:attribute name='COLOR' type='xs:string' use='optional'/>
   <xs:attribute name='FOLDED' use='optional'>
    <xs:simpleType>
     <xs:restriction base='xs:string'>
      <xs:enumeration value='true'/>
      <xs:enumeration value='false'/>
     </xs:restriction>
    </xs:simpleType>
   </xs:attribute>
   <xs:attribute name='ID' type='xs:ID' use='optional'/>
   <xs:attribute name='LINK' type='xs:string' use='optional'/>
   <xs:attribute name='POSITION' use='optional'>
    <xs:simpleType>
     <xs:restriction base='xs:string'>
      <xs:enumeration value='left'/>
      <xs:enumeration value='right'/>
     </xs:restriction>
    </xs:simpleType>
   </xs:attribute>
   <xs:attribute name='STYLE' type='xs:string' use='optional'/>
   <xs:attribute name='TEXT' type='xs:string' use='optional'/>
   <xs:attribute name='CREATED' type='xs:integer' use='optional'/>
   <xs:attribute name='MODIFIED' type='xs:integer' use='optional'/>
   <xs:attribute name='HGAP' type='xs:integer' use='optional'/>
   <xs:attribute name='VGAP' type='xs:integer' use='optional'/>
   <xs:attribute name='VSHIFT' type='xs:integer' use='optional'/>
   <xs:attribute name='ENCRYPTED_CONTENT' type='xs:string' use='optional'/>
  </xs:complexType>
 </xs:element>
</xs:schema>

Mapping between old and new format

TBD