<!-- This is the XML Bookmarks Exchange Language, version 1.0.  It

     should be used with the formal public identifier:

        +//IDN python.org//DTD XML Bookmark Exchange Language 1.0//EN//XML

     One valid system identifier at which this DTD will remain

     available is:

        http://pyxml.sourceforge.net/topics/dtds/xbel-1.0.dtd

     More information on the DTD, including reference

     documentation, is available at:

        http://www.python.org/topics/xml/xbel/

    Attributes which take date/time values should encode the value

    according to the W3C NOTE on date/time formats:

        http://www.w3.org/TR/NOTE-datetime

  -->

<!-- Customization entities.  Define these before "including" this DTD

     to create "subclassed" DTDs.

  -->

<!ENTITY % local.node.att  "">

<!ENTITY % local.url.att   "">

<!ENTITY % local.nodes.mix "">

<!ENTITY % node.att     "id       ID    #IMPLIED

                         added    CDATA #IMPLIED

                         %local.node.att;">

<!ENTITY % url.att      "href     CDATA #REQUIRED

                         visited  CDATA #IMPLIED

                         modified CDATA #IMPLIED

                         %local.url.att;">

<!ENTITY % nodes.mix    "bookmark|folder|alias|separator

                         %local.nodes.mix;">

<!ELEMENT xbel (title?, info?, desc?, (%nodes.mix;)*)>

<!ATTLIST xbel

            %node.att;

            version  CDATA      #FIXED "1.0"

>

<!ELEMENT title      (#PCDATA)>

<!--=================== Info ======================================-->

<!ELEMENT info (metadata+)>

<!ELEMENT metadata EMPTY>

<!ATTLIST metadata

            owner    CDATA      #REQUIRED

>

<!--=================== Folder ====================================-->

<!ELEMENT folder   (title?, info?, desc?, (%nodes.mix;)*)>

<!ATTLIST folder

            %node.att;

            folded   (yes|no)   'yes'   

>

<!--=================== Bookmark ==================================-->

<!ELEMENT bookmark (title?, info?, desc?)>

<!ATTLIST bookmark

            %node.att;

            %url.att;

>

<!ELEMENT desc       (#PCDATA)>

<!--=================== Separator =================================-->

<!ELEMENT separator EMPTY>

<!--=================== Alias =====================================-->

<!-- <alias> elements correspond to Netscape bookmark aliases.  The

     required "ref" attribute must refer to a <bookmark> or <folder>

     element.  Note that MSIE aliases can refer to folders, so that is

     supported in XBEL.  Applications must be careful about traversing

     aliases to folders to avoid improper recursion through circular

     data structures.

  -->

<!ELEMENT alias EMPTY>

<!ATTLIST alias

            ref       IDREF     #REQUIRED

>