<!-- XML BOOK DTD
           DTD for The XML Companion
           AUTHOR: N.Bradley ([email protected])
           VERSION: 1.4 (9/3/2001) -->


<!-- ENTITY DECLARATIONS -->

<!-- specify names and locations of external entities -->
<!ENTITY % CALStable SYSTEM "TABLE.DTD">
<!ENTITY % ISOnum
       PUBLIC "ISO 8879:1986//ENTITIES Numeric and Special
               Graphic//EN" SYSTEM "ISOnum.ent">
<!ENTITY % ISOlat1
       PUBLIC "ISO 8879:1986//ENTITIES Added Latin 1//EN"
       SYSTEM "ISOlat1.ent">
<!ENTITY % ISOgrk1
       PUBLIC "ISO 8879:1986//ENTITIES Greek Letters//EN"
       SYSTEM "ISOgrk.ent">
<!ENTITY % ISOpub
       PUBLIC "ISO 8879:1986//ENTITIES Publishing//EN"
       SYSTEM "ISOpub.ent">

<!-- merge-in the external entities -->

%CALStable;
%ISOnum;
%ISOlat1;
%ISOgrk1;
%ISOpub;

<!-- define internal entities -->
<!ENTITY % Blocks    "(para | markupPara | graphic |
                       list | table | roadMap)*" >

<!ENTITY % SuperSub  "sup | sub" >
<!ENTITY % Hilite    "markup | emphStrong | emphWeak" >

<!-- MAIN STRUCTURE -->


<!-- Book document element -->
<!ELEMENT book        (front, body, back)>
<!ATTLIST book        id     ID     #REQUIRED>

<!-- Title -->
<!ELEMENT title       (#PCDATA | %SuperSub;)*>

<!-- FRONT SECTION -->

<!-- front matter -->
<!ELEMENT front        (title, edition, author, publisher)>

<!-- edition of book -->
<!ELEMENT edition      (#PCDATA)>

<!-- author of book -->
<!ELEMENT author       (first, second, eMail?)>
<!ELEMENT first        (#PCDATA)>
<!ELEMENT second       (#PCDATA)>
<!ELEMENT eMail        (#PCDATA)>

<!-- publisher of book -->
<!ELEMENT publisher    (pubName, address)
<!ELEMENT pubName      (#PCDATA)>
<!ELEMENT address      (#PCDATA)>


<!-- BODY SECTION -->

<!ELEMENT body         (part+ | chapter+)>

<!-- part (in body) -->
<!ELEMENT part         (title, chapter+)>

<!-- chapter (in body or part) -->
<!ELEMENT chapter      (title, %Blocks;, section*)>
<!ATTLIST chapter      id     ID     #REQUIRED>

<!-- section (in chapter) -->
<!ELEMENT section      (title, %Blocks;, subSection*)>
<!ATTLIST section      id     ID     #REQUIRED>

<!-- subsection (in section) -->
<!ELEMENT subSection   (title, %Blocks;)
<!ATTLIST subSection   id     ID     #REQUIRED>

<!-- roadmap charts have different pagination and
     font size rules -->
<!ELEMENT roadMap      (para | markupPara)*>


<!-- BACK SECTION -->

<!-- back matter -->
<!ELEMENT back         (glossary)>

<!-- glossary (special form of chapter) -->
<!ELEMENT glossary     (para*, section*)>

<!-- BLOCK STRUCTURES -->

<!-- paragraph -->
<!ELEMENT para         (#PCDATA | %Hilite; | %SuperSub; |
                        xRef)*>

<!-- graphic image - placeholder -->
<!ELEMENT graphic      EMPTY>
<!ATTLIST graphic      id     ID       #IMPLIED
                       ident  ENTITY   #REQUIRED>

<!-- list -->
<!ELEMENT list         (item+)>

<!-- list item -->
<!ELEMENT item         (#PCDATA | %Hilite; |
                        %SuperSub; | xRef)*>
<!ATTLIST item          type     (number|random)  "random"

<!-- text block dislayed in mono-space -->
<!ELEMENT markupPara   (markupLine*)>
<!ATTLIST markupPara   splitable (loose | together)
                                               "loose">

<!-- markup line - one line of text in markup fragment-->
<!ELEMENT markupLine   (#PCDATA | %Hilite; | %SuperSub; |
                        presented)*>


<!-- IN-LINE STRUCTURES -->

<!-- example of rendered output -->
<!ELEMENT presented (#PCDATA | %Hilite; | %SuperSub;)*)>

<!-- XML example fragments in text -->
<!ELEMENT markup       (#PCDATA | %SuperSub; |
                        emphStrong | emphWeak)*>

<!-- emphasized text - shown in bold -->
<!ELEMENT emphStrong  (#PCDATA | markup | emphWeak |
                        %SuperSub; | xRef)*>

<!-- stressed (names) - shown in italic -->
<!ELEMENT emphWeak    (#PCDATA | markup |
                       emphStrong | %SuperSub; | xRef)*>

<!-- superscript -->
<!ELEMENT sup         (#PCDATA)>

<!-- subscript -->
<!ELEMENT sub         (#PCDATA)>

<!-- cross-references to other text in the book -->
<!ELEMENT xRef        (#PCDATA)>
<!ATTLIST xRef        source  IDREF   #REQUIRED>

<!-- END END END -->