| Element | Brief Description | 
|---|---|
| Abbrev | An abbreviation, especially one followed by a period | 
| Abstract | A summary | 
| Accel | A graphical user interface (GUI) keyboard shortcut | 
| Ackno | Acknowledgements in an Article | 
| Acronym | An often pronounceable word made from the initial (or selected) letters of a name or phrase | 
| Action | A response to a user event | 
| Address | A real-world address, generally a postal address | 
| Affiliation | The institutional affiliation of an individual | 
| Alt | Text representation for a graphical element | 
| Anchor | A spot in the document | 
| Answer | An answer to a question posed in a QandASet | 
| Appendix | An appendix in a Book or Article | 
| Application | The name of a software program | 
| Area | A region defined for a Callout in a graphic or code example | 
| AreaSet | A set of related areas in a graphic or code example | 
| AreaSpec | A collection of regions in a graphic or code example | 
| Arg | An argument in a CmdSynopsis | 
| ArtHeader | Meta-information for an Article | 
| ArtPageNums | The page numbers of an article as published | 
| Article | An article | 
| Attribution | The source of a block quote or epigraph | 
| AudioData | Pointer to external audio data | 
| AudioObject | A wrapper for audio data and its associated meta-information | 
| Author | The name of an individual author | 
| AuthorBlurb | A short description or note about an author | 
| AuthorGroup | Wrapper for author information when a document has multiple authors or collabarators | 
| AuthorInitials | The initials or other short identifier for an author | 
| BeginPage | The location of a page break in a print version of the document | 
| BiblioDiv | A section of a Bibliography | 
| BiblioEntry | An entry in a Bibliography | 
| BiblioMSet | A "cooked" container for related bibliographic information | 
| BiblioMisc | Untyped bibliographic information | 
| BiblioMixed | An entry in a Bibliography | 
| BiblioSet | A "raw" container for related bibliographic information | 
| Bibliography | A bibliography | 
| BlockQuote | A quotation set off from the main text | 
| Book | A book | 
| BookBiblio | Meta-information about a book used in a bibliographical citation | 
| BookInfo | Meta-information for a Book | 
| BridgeHead | A free-floating heading | 
| CO | The location of a callout embedded in text | 
| Callout | A "called out" description of a marked Area | 
| CalloutList | A list of Callouts | 
| Caption | A caption | 
| Caution | A note of caution | 
| Chapter | A chapter, as of a book | 
| Citation | An inline bibliographic reference to another published work | 
| CiteRefEntry | A citation to a reference page | 
| CiteTitle | The title of a cited work | 
| City | The name of a city in an address | 
| ClassName | The name of a class, in the object-oriented programming sense | 
| CmdSynopsis | A syntax summary for a software command | 
| ColSpec | Specifications for a column in a table | 
| Collab | Identifies a collaborator | 
| CollabName | The name of a collaborator | 
| Colophon | Text at the back of a book describing facts about its production | 
| Command | The name of an executable program or other software command | 
| Comment | A comment intended for presentation in a draft manuscript | 
| ComputerOutput | Data, generally text, displayed or presented by a computer | 
| ConfDates | The dates of a conference for which a document was written | 
| ConfGroup | A wrapper for document meta-information about a conference | 
| ConfNum | An identifier, frequently numerical, associated with a conference for which a document was written | 
| ConfSponsor | The sponsor of a conference for which a document was written | 
| ConfTitle | The title of a conference for which a document was written | 
| Constant | A programming or system constant | 
| ContractNum | The contract number of a document | 
| ContractSponsor | The sponsor of a contract | 
| Contrib | A summary of the contributions made to a document by a credited source | 
| Copyright | Copyright information about a document | 
| CorpAuthor | A corporate author, as opposed to an individual | 
| CorpName | The name of a corporation | 
| Country | The name of a country | 
| Database | The name of a database, or part of a database | 
| Date | The date of publication or revision of a document | 
| Dedication | A wrapper for the dedication section of a book | 
| DocInfo | Meta-data for a book component | 
| Edition | The name or number of an edition of a document | 
| Editor | The name of the editor of a document | 
| An email address | |
| Emphasis | Emphasized text | 
| EnVar | A software environment variable | 
| Entry | A cell in a table | 
| EntryTbl | A subtable appearing in place of an Entry in a table | 
| Epigraph | A short inscription at the beginning of a document or component | 
| Equation | A displayed mathematical equation | 
| ErrorCode | An error code | 
| ErrorName | An error message | 
| ErrorType | The classification of an error message | 
| Example | A formal example, with a title | 
| Fax | A fax number | 
| Figure | A formal figure, generally an illustration, with a title | 
| Filename | The name of a file | 
| FirstName | The first name of a person | 
| FirstTerm | The first occurrence of a term | 
| Footnote | A footnote | 
| FootnoteRef | A cross reference to a footnote (a footnote mark) | 
| ForeignPhrase | A word or phrase in a language other than the primary language of the document | 
| FormalPara | A paragraph with a title | 
| FuncDef | A function (subroutine) name and its return type | 
| FuncParams | Parameters for a function referenced through a function pointer in a synopsis | 
| FuncPrototype | The prototype of a function | 
| FuncSynopsis | The syntax summary for a function definition | 
| FuncSynopsisInfo | Information supplementing the FuncDefs of a FuncSynopsis | 
| Function | The name of a function or subroutine, as in a programming language | 
| GUIButton | The text on a button in a GUI | 
| GUIIcon | Graphic and/or text appearing as a icon in a GUI | 
| GUILabel | The text of a label in a GUI | 
| GUIMenu | The name of a menu in a GUI | 
| GUIMenuItem | The name of a terminal menu item in a GUI | 
| GUISubmenu | The name of a submenu in a GUI | 
| GlossDef | A definition in a GlossEntry | 
| GlossDiv | A division in a Glossary | 
| GlossEntry | An entry in a Glossary or GlossList | 
| GlossList | A wrapper for a set of GlossEntrys | 
| GlossSee | A cross-reference from one GlossEntry to another | 
| GlossSeeAlso | A cross-reference from one GlossEntry to another | 
| GlossTerm | A glossary term | 
| Glossary | A glossary | 
| Graphic | A displayed graphical object (not an inline) | 
| GraphicCO | A graphic that contains callout areas | 
| Group | A group of elements in a CmdSynopsis | 
| Hardware | A physical part of a computer system | 
| Highlights | A summary of the main points of the discussed component | 
| Holder | The name of the individual or organization that holds a copyright | 
| Honorific | The title of a person | 
| ISBN | The International Standard Book Number of a document | 
| ISSN | The International Standard Serial Number of a periodical | 
| ITermSet | A set of index terms in the meta-information of a document | 
| ImageData | Pointer to external image data | 
| ImageObject | A wrapper for image data and its associated meta-information | 
| ImageObjectCO | A wrapper for an image object with callouts | 
| Important | An admonition set off from the text | 
| Index | An index | 
| IndexDiv | A division in an index | 
| IndexEntry | An entry in an index | 
| IndexTerm | A wrapper for terms to be indexed | 
| InformalEquation | A displayed mathematical equation without a title | 
| InformalExample | A displayed example without a title | 
| InformalFigure | A untitled figure | 
| InformalTable | A table without a title | 
| InlineEquation | A mathematical equation or expression occurring inline | 
| InlineGraphic | An object containing or pointing to graphical data that will be rendered inline | 
| InlineMediaObject | An inline media object (video, audio, image, and so on) | 
| Interface | An element of a GUI | 
| InterfaceDefinition | The name of a formal specification of a GUI | 
| InvPartNumber | An inventory part number | 
| IssueNum | The number of an issue of a journal | 
| ItemizedList | A list in which each entry is marked with a bullet or other dingbat | 
| JobTitle | The title of an individual in an organization | 
| KeyCap | The text printed on a key on a keyboard | 
| KeyCode | The internal, frequently numeric, identifier for a key on a keyboard | 
| KeyCombo | A combination of input actions | 
| KeySym | The symbolic name of a key on a keyboard | 
| Keyword | One of a set of keywords describing the content of a document | 
| KeywordSet | A set of keywords describing the content of a document | 
| LegalNotice | A statement of legal obligations or requirements | 
| LineAnnotation | A comment on a line in a verbatim listing | 
| Lineage | The portion of a person's name indicating a relationship to ancestors | 
| Link | A hypertext link | 
| ListItem | A wrapper for the elements of a list item | 
| Literal | Inline text that is some literal value | 
| LiteralLayout | A block of text in which line breaks and white space are to be reproduced faithfully | 
| LoT | A list of the titles of formal objects (as tables or figures) in a document | 
| LoTentry | An entry in a list of titles | 
| ManVolNum | A reference volume number | 
| Markup | A string of formatting markup in text that is to be represented literally | 
| MediaLabel | A name that identifies the physical medium on which some information resides | 
| MediaObject | A displayed media object (video, audio, image, etc.) | 
| MediaObjectCO | A media object that contains callouts | 
| Member | An element of a simple list | 
| MenuChoice | A selection or series of selections from a menu | 
| ModeSpec | Application-specific information necessary for the completion of an OLink | 
| MouseButton | The conventional name of a mouse button | 
| Msg | A message in a message set | 
| MsgAud | The audience to which a message in a message set is relevant | 
| MsgEntry | A wrapper for an entry in a message set | 
| MsgExplan | Explanatory material relating to a message in a message set | 
| MsgInfo | Information about a message in a message set | 
| MsgLevel | The level of importance or severity of a message in a message set | 
| MsgMain | The primary component of a message in a message set | 
| MsgOrig | The origin of a message in a message set | 
| MsgRel | A related component of a message in a message set | 
| MsgSet | A detailed set of messages, usually error messages | 
| MsgSub | A subcomponent of a message in a message set | 
| MsgText | The actual text of a message component in a message set | 
| Note | A message set off from the text | 
| OLink | A link that addresses its target indirectly, through an entity | 
| ObjectInfo | Meta-information for an object | 
| Option | An option for a software command | 
| Optional | Optional information | 
| OrderedList | A list in which each entry is marked with a sequentially incremented label | 
| OrgDiv | A division of an organization | 
| OrgName | The name of an organization other than a corporation | 
| OtherAddr | Uncategorized information in address | 
| OtherCredit | A person or entity, other than an author or editor, credited in a document | 
| OtherName | A component of a persons name that is not a first name, surname, or lineage | 
| POB | A post office box in an address | 
| PageNums | The numbers of the pages in a book, for use in a bibliographic entry | 
| Para | A paragraph | 
| ParamDef | Information about a function parameter in a programming language | 
| Parameter | A value or a symbolic reference to a value | 
| Part | A division in a book | 
| PartIntro | An introduction to the contents of a part | 
| Phone | A telephone number | 
| Phrase | A span of text | 
| Postcode | A postal code in an address | 
| Preface | Introductory matter preceding the first chapter of a book | 
| Primary | The primary word or phrase under which an index term should be sorted | 
| PrimaryIE | A primary term in an index entry, not in the text | 
| PrintHistory | The printing history of a document | 
| Procedure | A list of operations to be performed in a well-defined sequence | 
| ProductName | The formal name of a product | 
| ProductNumber | A number assigned to a product | 
| ProgramListing | A literal listing of all or part of a program | 
| ProgramListingCO | A program listing with associated areas used in callouts | 
| Prompt | A character or string indicating the start of an input field in a computer display | 
| Property | A unit of data associated with some part of a computer system | 
| PubDate | The date of publication of a document | 
| Publisher | The publisher of a document | 
| PublisherName | The name of the publisher of a document | 
| PubsNumber | A number assigned to a publication other than an ISBN or ISSN or inventory part number | 
| QandADiv | A titled division in a QandASet | 
| QandAEntry | A question/answer set within a QandASet | 
| QandASet | A question-and-answer set | 
| Question | A question in a QandASet | 
| Quote | An inline quotation | 
| RefClass | The scope or other indication of applicability of a reference entry | 
| RefDescriptor | A description of the topic of a reference page | 
| RefEntry | A reference page (originally a UNIX man-style reference page) | 
| RefEntryTitle | The title of a reference page | 
| RefMeta | Meta-information for a reference entry | 
| RefMiscInfo | Meta-information for a reference entry other than the title and volume number | 
| RefName | The name of (one of) the subject(s) of a reference page | 
| RefNameDiv | The name, purpose, and classification of a reference page | 
| RefPurpose | A short (one sentence) synopsis of the topic of a reference page | 
| RefSect1 | A major subsection of a reference entry | 
| RefSect1Info | Meta-information for a RefSect1 | 
| RefSect2 | A subsection of a RefSect1 | 
| RefSect2Info | Meta-information for a RefSect2 | 
| RefSect3 | A subsection of a RefSect2 | 
| RefSect3Info | Meta-information for a RefSect3 | 
| RefSynopsisDiv | A syntactic synopsis of the subject of the reference page | 
| RefSynopsisDivInfo | Meta-information for a RefSynopsisDiv | 
| Reference | A collection of reference entries | 
| ReleaseInfo | Information about a particular release of a document | 
| Replaceable | Content that may or must be replaced by the user | 
| ReturnValue | The value returned by a function | 
| RevHistory | A history of the revisions to a document | 
| RevNumber | A document revision number | 
| RevRemark | A description of a revision to a document | 
| Revision | An entry describing a single revision in the history of the revisions to a document | 
| Row | A row in a table | 
| SBR | An explicit line break in a command synopsis | 
| SGMLTag | A component of SGML markup | 
| Screen | Text that a user sees or might see on a computer screen | 
| ScreenCO | A screen with associated areas used in callouts | 
| ScreenInfo | Information about how a screen shot was produced | 
| ScreenShot | A representation of what the user sees or might see on a computer screen | 
| Secondary | A secondary word or phrase in an index term | 
| SecondaryIE | A secondary term in an index entry, rather than in the text | 
| Sect1 | A top-level section of document | 
| Sect1Info | Meta-information for a Sect1 | 
| Sect2 | A subsection within a Sect1 | 
| Sect2Info | Meta-information for a Sect2 | 
| Sect3 | A subsection within a Sect2 | 
| Sect3Info | Meta-information for a Sect3 | 
| Sect4 | A subsection within a Sect3 | 
| Sect4Info | Meta-information for a Sect4 | 
| Sect5 | A subsection within a Sect4 | 
| Sect5Info | Meta-information for a Sect5 | 
| Section | A recursive section | 
| SectionInfo | Meta-information for a recursive section | 
| See | Part of an index term directing the reader instead to another entry in the index | 
| SeeAlso | Part of an index term directing the reader also to another entry in the index | 
| SeeAlsoIE | A "See also" entry in an index, rather than in the text | 
| SeeIE | A "See" entry in an index, rather than in the text | 
| Seg | An element of a list item in a segmented list | 
| SegListItem | A list item in a segmented list | 
| SegTitle | The title of an element of a list item in a segmented list | 
| SegmentedList | A segmented list, a list of sets of elements | 
| SeriesInfo | Information about the publication series of which a book is a part | 
| SeriesVolNums | Numbers of the volumes in a series of books | 
| Set | A collection of books | 
| SetIndex | An index to a set of books | 
| SetInfo | Meta-information for a Set | 
| ShortAffil | A brief description of an affiliation | 
| Shortcut | A key combination for an action that is also accessible through a menu | 
| Sidebar | A portion of a document that is isolated from the main narrative flow | 
| SimPara | A paragraph that contains only text and inline markup, no block elements | 
| SimpleList | An undecorated list of single words or short phrases | 
| SimpleSect | A section of a document with no subdivisions | 
| SpanSpec | Formatting information for a spanned column in a table | 
| State | A state or province in an address | 
| Step | A unit of action in a procedure | 
| Street | A street address in an address | 
| StructField | A field in a structure (in the programming language sense) | 
| StructName | The name of a structure (in the programming language sense) | 
| SubSteps | A wrapper for steps that occur within steps in a procedure | 
| Subject | One of a group of terms describing the subject matter of a document | 
| SubjectSet | A set of terms describing the subject matter of a document | 
| SubjectTerm | A term in a group of terms describing the subject matter of a document | 
| Subscript | A subscript (as in H2O, the molecular formula for water) | 
| Subtitle | The subtitle of a document | 
| Superscript | A superscript (as in x2, the mathematical notation for x multiplied by itself) | 
| Surname | A family name; in western cultures the "last name" | 
| Symbol | A name that is replaced by a value before processing | 
| SynopFragment | A portion of a CmdSynopsis broken out from the main body of the synopsis | 
| SynopFragmentRef | A reference to a fragment of a command synopsis | 
| Synopsis | A general-purpose element for representing the syntax of commands or functions | 
| SystemItem | A system-related item or term | 
| TBody | A wrapper for the rows of a table or informal table | 
| TFoot | A table footer consisting of one or more rows | 
| TGroup | A wrapper for the main content of a table, or part of a table | 
| THead | A table header consisting of one or more rows | 
| Table | A formal table in a document | 
| Term | The word or phrase being defined or described in a variable list | 
| Tertiary | A tertiary word or phrase in an index term | 
| TertiaryIE | A tertiary term in an index entry, rather than in the text | 
| TextObject | A wrapper for a text description of an object and its associated meta-information | 
| Tip | A suggestion to the user, set off from the text | 
| Title | The text of the title of a section of a document or of a formal block-level element | 
| TitleAbbrev | The abbreviation of a Title | 
| ToC | A table of contents | 
| ToCback | An entry in a table of contents for a back matter component | 
| ToCchap | An entry in a table of contents for a component in the body of a document | 
| ToCentry | A component title in a table of contents | 
| ToCfront | An entry in a table of contents for a front matter component | 
| ToClevel1 | A top-level entry within a table of contents entry for a chapter-like component | 
| ToClevel2 | A second-level entry within a table of contents entry for a chapter-like component | 
| ToClevel3 | A third-level entry within a table of contents entry for a chapter-like component | 
| ToClevel4 | A fourth-level entry within a table of contents entry for a chapter-like component | 
| ToClevel5 | A fifth-level entry within a table of contents entry for a chapter-like component | 
| ToCpart | An entry in a table of contents for a part of a book | 
| Token | A unit of information | 
| Trademark | A trademark | 
| Type | The classification of a value | 
| ULink | A link that addresses its target by means of a URL (Uniform Resource Locator) | 
| UserInput | Data entered by the user | 
| VarArgs | An empty element in a function synopsis indicating a variable number of arguments | 
| VarListEntry | A wrapper for a set of terms and the associated description in a variable list | 
| VarName | The name of a variable | 
| VariableList | A list in which each entry is composed of a set of one or more terms and an associated description | 
| VideoData | Pointer to external video data | 
| VideoObject | A wrapper for video data and its associated meta-information | 
| Void | An empty element in a function synopsis indicating that the function in question takes no arguments | 
| VolumeNum | The volume number of a document in a set (as of books in a set or articles in a journal) | 
| Warning | An admonition set off from the text | 
| WordAsWord | A word meant specifically as a word and not representing anything else | 
| XRef | A cross reference to another part of the document | 
| Year | The year of publication of a document | 
Copyright © 1999 O'Reilly & Associates, Inc. All rights reserved.