<!--

  XML Document Type Definition for GNUstep Documentation Markup
  Language (gsdoc).

  Written by Richard Frith-Macdonald
  Based on GDML by 1997 Yoo C. Chung

  This is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2 of the License, or (at your option) any later version.

  This document is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  Library General Public License for more details.

  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, write to the Free
  Software Foundation, Inc., 31 Milk Street #960789 Boston, MA 02196 USA.

-->


<!--
  gsdoc is an XML language - Typical usage:
  <?xml version="1.0"?>
  <!DOCTYPE gsdoc PUBLIC "-//GNUstep//DTD gsdoc 1.0.3//EN"
	"http://www.gnustep.org/gsdoc.xml">
  <gsdoc base="myDocName">
  </gsdoc>
-->


<!--***** Character entities. *****-->

<!-- General purpose characters for gsdoc. -->
<!ENTITY copy "&#169;">		<!-- copyright symbol -->
<!ENTITY tm   "&#174;">		<!-- trademark symbol -->
<!ENTITY reg  "&#174;">
<!ENTITY dots "&#8230;">	<!-- ellipsis (...) -->
<!ENTITY nbsp "&#160;">		<!-- non breakable space -->
<!ENTITY amp  "&#38;#38;">	<!-- ampersand -->
<!ENTITY apos "&#39;">		<!-- apos -->
<!ENTITY quot "&#34;">		<!-- quotation mark (") -->
<!ENTITY lt   "&#38;#60;">	<!-- lesser than symbol -->
<!ENTITY gt   "&#62;">		<!-- greater than symbol -->

<!--***** Entity declarations. *****-->

<!-- Boolean values for attributes -->
<!ENTITY % boolean "(yes|no)">

<!-- Entity for phrase elements. -->
<!ENTITY % phrase "var | ivar | em | code | strong | file | site">

<!-- Entity for cross references. -->
<!ENTITY % xref "ref | uref | url | email | prjref">

<!-- Entity for anchors. -->
<!ENTITY % anchor "label | entry">

<!-- Entity for simple text level elements. -->
<!ENTITY % text "#PCDATA | %xref; | %anchor; | %phrase; | footnote | br">

<!-- Entity for list elements. -->
<!ENTITY % list "list | enum | deflist | qalist | dictionary">

<!-- Entity for block level elements. -->
<!ENTITY % block "%text; | %list; | p | example | embed | index">

<!-- Entity for definition elements and blocks. -->
<!ENTITY % defblock "%text; | %list; | heading | p | example | embed | index | class | category | protocol | function | macro | type | variable | constant | EOModel | EOEntity">

<!--**********-->


<!-- Used for describing something. -->
<!ELEMENT desc (%block;)*>

<!-- A footnote. -->
<!ELEMENT footnote (%text;)*>


<!--***** Phrase elements. *****-->

<!-- The content is a metasyntactic variable or argument name. -->
<!ELEMENT var (%text;)*>

<!-- The content is a metasyntactic ivariable name. -->
<!ELEMENT ivar (%text;)*>

<!-- Emphasize the content. -->
<!ELEMENT em (%text;)*>

<!-- The content is too important that simple emphasizing isn't
     enough. -->
<!ELEMENT strong (%text;)*>

<!-- The content is either a name for code (e.g. class names), or a
     relatively short code fragment. -->
<!ELEMENT code (%text;)*>

<!-- The content is a file name. -->
<!ELEMENT file (#PCDATA)*>

<!-- The content is a fully qualified domain name on the Internet. -->
<!ELEMENT site (#PCDATA)*>

<!--***** List elements. *****-->

<!-- An item in a list. -->
<!ELEMENT item (%block;)*>

<!-- An enumerated list. -->
<!ELEMENT enum (item+)>

<!-- A ordinary, unnumbered list. -->
<!ELEMENT list (item+)>

<!-- A term to defined in a definition list. -->
<!ELEMENT term (%text;)*>

<!-- A definition list. -->
<!ELEMENT deflist (term, desc)+>

<!-- A question for a question and answer list. -->
<!ELEMENT question (%text;)*>

<!-- An answer for a question and answer list. -->
<!ELEMENT answer (%block;)*>

<!-- A question and answer list. -->
<!ELEMENT qalist (question, answer)+>

<!--**********-->


<!--***** Cross references. *****-->

<!-- A reference.
 ID of the reference.
 TYPE of reference, if implied, a reference to a label.
 CLASS specific class for a method, may be one of the following formats -
   classname, classname(categoryname), (protocolname)
-->
<!ELEMENT ref (%text;)*>
<!ATTLIST ref
  id CDATA #REQUIRED
  type (class|category|protocol|method|ivariable|function|type|macro|variable|constant|label|EOModel|EOEntity|tool) "label"
  class CDATA #IMPLIED
>

<!-- An e-mail address. -->
<!ELEMENT email (%text;)*>
<!ATTLIST email
  address CDATA #IMPLIED
>

<!-- A URL. -->
<!ELEMENT url EMPTY>
<!ATTLIST url
  url CDATA #IMPLIED
>

<!-- A reference to a URL.
  The text contained appears in the output.
-->
<!ELEMENT uref (%text;)*>
<!ATTLIST uref
  url CDATA #REQUIRED
>

<!-- A reference to a project.
  The text contained appears in the output.
-->
<!ELEMENT prjref (%text;)*>
<!ATTLIST prjref
  prjname CDATA #IMPLIED
  file CDATA #IMPLIED
>

<!--***** Anchors. *****-->

<!-- An anchor for a general reference.
 The text contained appears in the output.
 If the id attribute is omitted, the text is used in its place.
-->
<!ELEMENT label (%text;)*>
<!ATTLIST label
  id CDATA #IMPLIED
>

<!-- An entry for the general index. 
  The text that is contained appears in the index, and never in
  the text itself.
 If the id attribute is omitted, the text is used in its place.
-->
<!ELEMENT entry (%text;)*>
<!ATTLIST entry
  id CDATA #IMPLIED
>

<!-- Entity for standard elements. -->
<!ELEMENT GNUstep EMPTY>
<!ELEMENT OpenStep EMPTY>
<!ELEMENT NotOpenStep EMPTY>
<!ELEMENT MacOS-X EMPTY>
<!ELEMENT NotMacOS-X EMPTY>

<!-- A standard that something is or isn't  compliant with. -->
<!ENTITY % standard "GNUstep | OpenStep | NotOpenStep | MacOS-X | NotMacOS-X">

<!ELEMENT standards (%standard;)*>

<!--***** Argument elements. *****-->

<!-- An argument. -->
<!ELEMENT arg (#PCDATA)*>
<!ATTLIST arg
  type CDATA #IMPLIED
>

<!-- Denotes that the rest of the arguments is a variable list,
  like in printf().
-->
<!ELEMENT vararg EMPTY>


<!--***** Method elements. *****-->

<!-- A component for a method selector. -->
<!ELEMENT sel (#PCDATA)*>

<!-- A method.  If there is no DESC, it is understood that the element
     is used to override some information from the same method in the
     superclass.
  If factory not set, instance method
-->
<!ELEMENT method (((sel, arg?), (sel, arg)*, vararg?), desc?, standards?)>
<!ATTLIST method
  type CDATA #IMPLIED
  factory %boolean; "no"
  init %boolean; "no"
  override (subclass|never) #IMPLIED
>

<!--***** Elements for definitions of classes, functions, etc. *****-->

<!-- Show what header file something lives in. -->
<!ELEMENT declared (#PCDATA)*>

<!-- A macro definition. -->
<!ELEMENT macro ((arg*, vararg?), declared?, desc?, standards?)>
<!ATTLIST macro
  name CDATA #REQUIRED
>

<!-- A type definition. -->
<!ELEMENT type (declared?, desc?, standards?)>
<!ATTLIST type
  name CDATA #REQUIRED
  type CDATA #REQUIRED
>

<!-- Variable definition.
  VALUE may be set for a constant or a default value
-->
<!ELEMENT variable (declared?, desc?, standards?)>
<!ATTLIST variable
  name CDATA #REQUIRED
  type CDATA #REQUIRED
  value CDATA #IMPLIED
>

<!-- Ivariable definition.
-->
<!ELEMENT ivariable (desc?, standards?)>
<!ATTLIST ivariable
  name CDATA #REQUIRED
  type CDATA #REQUIRED
  validity (public|protected|private) "public"
>

<!-- Constant definition.
  VALUE may be set for a constant or a default value
-->
<!ELEMENT constant (declared?, desc?, standards?)>
<!ATTLIST constant
  name CDATA #REQUIRED
  type CDATA #REQUIRED
  value CDATA #IMPLIED
  role (except|defaults|notify|key) #IMPLIED
>

<!-- A function definition. -->
<!ELEMENT function ((arg*, vararg?), declared?, desc?, standards?)>
<!ATTLIST function
  name CDATA #REQUIRED
  type CDATA #REQUIRED
>

<!-- Protocol definition. -->
<!ELEMENT protocol (declared?, conform*, desc?, method*, standards?)>
<!ATTLIST protocol
  name CDATA #REQUIRED
>

<!-- Category definition. -->
<!ELEMENT category (declared?, conform*, desc?, method*, standards?)>
<!ATTLIST category
  name CDATA #REQUIRED
  class CDATA #REQUIRED
>

<!-- Show a protocol a class conforms to. -->
<!ELEMENT conform (#PCDATA)*>

<!ELEMENT class (declared?, conform*, desc?, ivariable*, method*, standards?)>
<!ATTLIST class
  name CDATA #REQUIRED
  super CDATA #IMPLIED
>

<!--***** Elements for definitions of EOModels, etc. *****-->

<!-- a dictionary Item. -->
<!ELEMENT dictionaryItem (%block;)*>
<!ATTLIST dictionaryItem
  key CDATA #REQUIRED
  value CDATA #IMPLIED
>

<!-- a dictionary -->
<!ELEMENT dictionary (dictionaryItem+)>

<!ELEMENT EOConnectionDictionary (dictionaryItem+)>

<!ELEMENT EOUserDictionary (dictionaryItem+)>

<!--***** Elements for definitions of EOModels, etc. *****-->

<!-- EORelationshipComponent -->
<!ELEMENT EORelationshipComponent (EORelationshipComponent*)>
<!ATTLIST EORelationshipComponent
  definition CDATA #REQUIRED
>

<!-- EOJoin -->
<!ELEMENT EOJoin (desc?)>
<!ATTLIST EOJoin
  relationshipName CDATA #IMPLIED
  joinOperator CDATA #REQUIRED
  joinSemantic CDATA #REQUIRED
  sourceAttribute CDATA #REQUIRED
  destinationAttribute CDATA #REQUIRED
>

<!-- EORelationship -->
<!ELEMENT EORelationship ((EORelationshipComponent | (EOJoin*)), EOUserDictionary?, desc?)>
<!ATTLIST EORelationship
  entityName CDATA #REQUIRED
  destinationEntityName CDATA #REQUIRED
  name CDATA #REQUIRED
  isToMany CDATA #IMPLIED
>

<!-- EOAttributeRef -->
<!ELEMENT EOAttributeRef EMPTY>
<!ATTLIST EOAttributeRef
  name CDATA #REQUIRED
>

<!-- EOPrimaryKeyAttributes -->
<!ELEMENT EOPrimaryKeyAttributes (EOAttributeRef+)>

<!-- EOClassProperties -->
<!ELEMENT EOClassProperties ((EOAttributeRef)+)>

<!-- EOAttributesUsedForLocking -->
<!ELEMENT EOAttributesUsedForLocking (EOAttributeRef+)>

<!-- EOAttribute -->
<!ELEMENT EOAttribute (EOUserDictionary?, desc?)>
<!ATTLIST EOAttribute
  columnName CDATA #IMPLIED
  definition CDATA #IMPLIED
  externalType CDATA #IMPLIED
  name CDATA #REQUIRED
  valueClassName CDATA #IMPLIED
  valueType CDATA #IMPLIED
  entityName CDATA #IMPLIED
  isReadOnly CDATA #IMPLIED
  isDerived CDATA #IMPLIED
  isFlattened CDATA #IMPLIED
>

<!-- EOEntity -->
<!ELEMENT EOEntity (EOAttribute*, EOAttributesUsedForLocking?, EOClassProperties?, EOPrimaryKeyAttributes?, EORelationship*, EOUserDictionary?, desc?)>
<!ATTLIST EOEntity
  name CDATA #REQUIRED
  externalName CDATA #IMPLIED
  className CDATA #IMPLIED
  modelName CDATA #IMPLIED
  isReadOnly CDATA #IMPLIED
>

<!-- EOModel -->
<!ELEMENT EOModel (EOConnectionDictionary?, (EOEntity+ | list), EOUserDictionary?, desc?)>
<!ATTLIST EOModel
  name CDATA #REQUIRED
  version CDATA #IMPLIED
  adaptorName CDATA #REQUIRED
  adaptorClassName CDATA #REQUIRED
>

<!--***** Elements for ordinary block level elements. *****-->

<!-- A line break. -->
<!ELEMENT br EMPTY>

<!-- A paragraph. -->
<!ELEMENT p (%text;)*>

<!-- An example. -->
<!ELEMENT example (#PCDATA)*>
<!ATTLIST example
  caption CDATA #IMPLIED
>

<!-- An embedded object.  If it is of a type that the SGML processor
  cannot handle, then use the content, which is ignored otherwise.
  refer - method of referring to object (default is file)
  src - the reference to the object
  type - Internet media type of the objec
  title - optional title describing object
-->
<!ELEMENT embed (%block;)*>
<!ATTLIST embed
  refer (file|url) #IMPLIED
  src CDATA #REQUIRED
  type CDATA #IMPLIED
  title CDATA #IMPLIED
>

<!--***** Elements for document structure such as chapters. *****-->

<!-- A heading for chapters, sections, ... -->
<!ELEMENT heading (%text;)*>

<!-- A subsubsection. -->
<!ELEMENT subsubsect (%defblock;)*>
<!ATTLIST subsubsect
  id CDATA #IMPLIED
>

<!-- A subsection. -->
<!ELEMENT subsect (%defblock; | subsubsect)*>
<!ATTLIST subsect
  id CDATA #IMPLIED
>

<!-- A section. -->
<!ELEMENT section (%defblock; | subsect)*>
<!ATTLIST section
  id CDATA #IMPLIED
>

<!-- A chapter. -->
<!ELEMENT chapter (%defblock; | section)*>
<!ATTLIST chapter
  id CDATA #IMPLIED
>


<!--***** Elements that make searching for things easier. *****-->

<!-- Table of contents. -->
<!ELEMENT contents EMPTY>

<!-- Index  ... generates an index of the specified type of elements.
  'scope' determines whether the index is generated for the current file
  or for the whole of the current project, or for everything the software
  can find (global) ... if the document is processed in a standalone manner,
  the scope if always file.  For method or ivariable indexing, if the index
  is inside a class, protocol, or category, only  indexes for that unit
  should be generated.
  'type' determines the type of entry listed in the index.  The 'title'
  type really only makes sense for a project scope index as it produces
  a list of the files in the project (by title).
-->
<!ELEMENT index EMPTY>
<!ATTLIST index
  type (class | category | protocol | method | ivariable | function | type | macro | variable | constant | EOModel | EOEntity | label | title | tool) "label"
  scope (file | project | global) "file"
  style ( normal | bare ) "normal"
  target CDATA #IMPLIED
>


<!--***** Elements that describe the document itself. *****-->

<!-- Copyright of the document. -->
<!ELEMENT copy (%text;)*>

<!-- An abstract. -->
<!ELEMENT abstract (%text;)*>

<!-- The version of the document. -->
<!ELEMENT version (%text;)*>

<!-- The date the document was written. -->
<!ELEMENT date (%text;)*>

<!-- An author. -->
<!ELEMENT author (email?, url?, desc?)>
<!ATTLIST author
  name CDATA #REQUIRED
>

<!-- The title of the document. -->
<!ELEMENT title (%text;)*>


<!--***** The topmost structures for the document body. *****-->

<!-- Unnumbered parts appearing in the front, such as a preface. -->
<!ELEMENT front (contents?, chapter*)>

<!-- Unnumbered parts appearing in the back, such as an afterword and/or
 indices.
-->
<!ELEMENT back (chapter*, index*)>


<!--***** The topmost structures for the document. *****-->

<!-- The head containing general information about the document. -->
<!ELEMENT head (title, author*, version?, date?, abstract?, copy?)>

<!-- The main part of the document. -->
<!ELEMENT body (front?, chapter+, back?)>

<!--**********-->


<!-- The entire document. -->
<!ELEMENT gsdoc (head, body)>
<!ATTLIST gsdoc
  base CDATA #IMPLIED
  next CDATA #IMPLIED
  prev CDATA #IMPLIED
  up CDATA #IMPLIED
  stylesheeturl CDATA #IMPLIED
>

