Any attribute, including any attribute in any namespace. Any element from almost any namespace
Designates the computer or chip architecture to which the element applies Designates the intended audience to which the element applies, for example, system administrators, programmers, or new users. provides a standard place for application-specific effectivity Indicates standards conformance characteristics of the element Indicates the operating system to which the element is applicable Indicates the editorial revision to which the element belongs Indicates something about the security level associated with the element to which it applies Indicates the level of user experience for which the element applies Indicates the computer vendor to which the element applies. Indicates the word size (width in bits) of the computer architecture to which the element applies Indicates the output format (for example, print or epub) to which the element applies Points to the element whose content is to be used as the text of the link Points to an internal link target by identifying the value of its xml:id attribute Points to one or more internal link targets by identifying the value of their xml:id attributes Identifies a link target with a URI Identifies the XLink link type simple An XLink simple link type Identifies the XLink role of the link Identifies the XLink arcrole of the link Identifies the XLink title of the link new An application traversing to the ending resource should load it in a new window, frame, pane, or other relevant presentation context. replace An application traversing to the ending resource should load the resource in the same window, frame, pane, or other relevant presentation context in which the starting resource was loaded. embed An application traversing to the ending resource should load its presentation in place of the presentation of the starting resource. other The behavior of an application traversing to the ending resource is unconstrained by XLink. The application should look for other markup present in the link to determine the appropriate behavior. none The behavior of an application traversing to the ending resource is unconstrained by this specification. No other markup is present to help the application determine the appropriate behavior. Identifies the XLink show behavior of the link onLoad An application should traverse to the ending resource immediately on loading the starting resource. onRequest An application should traverse from the starting resource to the ending resource only on a post-loading event triggered for the purpose of traversal. other The behavior of an application traversing to the ending resource is unconstrained by this specification. The application should look for other markup present in the link to determine the appropriate behavior. none The behavior of an application traversing to the ending resource is unconstrained by this specification. No other markup is present to help the application determine the appropriate behavior. Identifies the XLink actuate behavior of the link Identifies the unique ID value of the element Specifies the DocBook version of the element and its descendants Specifies the natural language of the element and its descendants Specifies the base URI of the element and its descendants Provides the name or similar semantic identifier assigned to the content in some previous markup scheme Provides the text that is to be generated for a cross reference to the element Specifies a keyword or keywords identifying additional style information changed The element has been changed. added The element is new (has been added to the document). deleted The element has been deleted. off Explicitly turns off revision markup for this element. Identifies the revision status of the element ltr Left-to-right text rtl Right-to-left text lro Left-to-right override rlo Right-to-left override Identifies the direction of text in an element Specifies the format of the data Indentifies the location of the data by URI Identifies the location of the data by external identifier (entity name) continues Line numbering continues from the immediately preceding element with the same name. restarts Line numbering restarts (begins at 1, usually). Determines whether line numbering continues from the previous element or restarts. numbered Lines are numbered. unnumbered Lines are not numbered. Determines whether lines are numbered. Specifies the initial line number. Identifies the language (i.e. programming language) of the verbatim content. Can be used to indicate explicitly that whitespace in the verbatim environment is preserved. Whitespace must always be preserved in verbatim environments whether this attribute is specified or not. preserve Whitespace must be preserved. Specifies an identifying string for presentation purposes Specifies the width (in characters) of the element compact The spacing should be "compact". normal The spacing should be "normal". Specifies (a hint about) the spacing of the content 0 The element should be rendered in the current text flow (with the flow column width). 1 The element should be rendered across the full text page. Indicates if the element is rendered across the column or the page Identifies the language (i.e. programming language) of the content. optional The content describes an optional step or steps. required The content describes a required step or steps. Specifies if the content is required or optional. Specifies style information to be used when rendering the float Specifies the width of the element Specifies the depth of the element Specifies the width of the content rectangle Specifies the depth of the content rectangle 0 False (do not scale-to-fit; anamorphic scaling may occur) 1 True (scale-to-fit; anamorphic scaling is forbidden) Specifies the scaling factor Specifies a classid for a media object player Specifies the autoplay setting for a media object player center Centered horizontally char Aligned horizontally on the specified character justify Fully justified (left and right margins or edges) left Left aligned right Right aligned bottom Aligned on the bottom of the region middle Centered vertically top Aligned on the top of the region doi A digital object identifier. isbn An international standard book number. isrn An international standard technical report number (ISO 10444). issn An international standard serial number. istc An international standard text code. libraryofcongress A Library of Congress reference number. pubsnumber A publication number (an internal number or possibly organizational standard). uri A Uniform Resource Identifier Identifies the kind of bibliographic identifier Identifies the nature of the non-standard bibliographic identifier Identifies the kind of bibliographic identifier other Indicates that the identifier is some 'other' kind.
The text of the title of a section of a document or of a formal block-level element
The abbreviation of a title
The subtitle of a document
A wrapper for information about a component or other block
A wrapper for information about a component or other block with a required title
A wrapper for information about a component or other block with only a title
A wrapper for information about a component or other block with only a required title
A wrapper for information about a component or other block without a title
Identifies the controlled vocabulary used by this set's terms A set of terms describing the subject matter of a document
Specifies a ranking for this subject relative to other subjects in the same set One of a group of terms describing the subject matter of a document
A term in a group of terms describing the subject matter of a document
A set of keywords describing the content of a document
One of a set of keywords describing the content of a document
A list of operations to be performed in a well-defined sequence If this element is the root element, it must have a version attribute.
A unit of action in a procedure If this element is the root element, it must have a version attribute.
Alternative steps in a procedure If this element is the root element, it must have a version attribute.
A wrapper for steps that occur within steps in a procedure
A wrapper for identifying the results of a procedure or step
A portion of a document that is isolated from the main narrative flow sidebar must not occur among the children or descendants of sidebar If this element is the root element, it must have a version attribute.
A summary If this element is the root element, it must have a version attribute.
A short description or note about a person If this element is the root element, it must have a version attribute.
A quotation set off from the main text If this element is the root element, it must have a version attribute.
The source of a block quote or epigraph
sect1 Render as a first-level section sect2 Render as a second-level section sect3 Render as a third-level section sect4 Render as a fourth-level section sect5 Render as a fifth-level section Indicates how the bridge head should be rendered Identifies the nature of the non-standard rendering Indicates how the bridge head should be rendered other Identifies a non-standard rendering A free-floating heading
A remark (or comment) intended for presentation in a draft manuscript
A short inscription at the beginning of a document or component If this element is the root element, it must have a version attribute.
Identifies the desired footnote mark A footnote footnote must not occur among the children or descendants of footnote example must not occur among the children or descendants of footnote figure must not occur among the children or descendants of footnote table must not occur among the children or descendants of footnote equation must not occur among the children or descendants of footnote sidebar must not occur among the children or descendants of footnote task must not occur among the children or descendants of footnote epigraph must not occur among the children or descendants of footnote caution must not occur among the children or descendants of footnote important must not occur among the children or descendants of footnote note must not occur among the children or descendants of footnote tip must not occur among the children or descendants of footnote warning must not occur among the children or descendants of footnote
A paragraph with a title If this element is the root element, it must have a version attribute.
A paragraph If this element is the root element, it must have a version attribute.
A paragraph that contains only text and inline markup, no block elements If this element is the root element, it must have a version attribute.
Identifies the type of mark to be used on items in this list A list in which each entry is marked with a bullet or other dingbat If this element is the root element, it must have a version attribute.
continues Specifies that numbering should begin where the preceding list left off restarts Specifies that numbering should begin again at 1 Indicates how list numbering should begin relative to the immediately preceding list Specifies the initial line number. ignore Specifies that numbering should ignore list nesting inherit Specifies that numbering should inherit from outer-level lists Indicates whether or not item numbering should be influenced by list nesting arabic Specifies Arabic numeration (1, 2, 3, …) upperalpha Specifies upper-case alphabetic numeration (A, B, C, …) loweralpha Specifies lower-case alphabetic numeration (a, b, c, …) upperroman Specifies upper-case Roman numeration (I, II, III, …) lowerroman Specifies lower-case Roman numeration (i, ii, iii …) Indicates the desired numeration A list in which each entry is marked with a sequentially incremented label If this element is the root element, it must have a version attribute.
Specifies the keyword for the type of mark that should be used on this item, instead of the mark that would be used by default A wrapper for the elements of a list item
A segmented list, a list of sets of elements If this element is the root element, it must have a version attribute.
The title of an element of a list item in a segmented list
A list item in a segmented list The number of seg elements must be the same as the number of segtitle elements in the parent segmentedlist
An element of a list item in a segmented list
horiz A tabular presentation in row-major order. vert A tabular presentation in column-major order. inline An inline presentation, usually a comma-delimited list. Specifies the type of list presentation. Specifies the number of columns for horizontal or vertical presentation An undecorated list of single words or short phrases If this element is the root element, it must have a version attribute.
An element of a simple list
Indicates a length beyond which the presentation system may consider a term too long and select an alternate presentation for that term, item, or list A list in which each entry is composed of a set of one or more terms and an associated description If this element is the root element, it must have a version attribute.
A wrapper for a set of terms and the associated description in a variable list
The word or phrase being defined or described in a variable list
A formal example, with a title example must not occur among the children or descendants of example figure must not occur among the children or descendants of example table must not occur among the children or descendants of example equation must not occur among the children or descendants of example If this element is the root element, it must have a version attribute.
A displayed example without a title If this element is the root element, it must have a version attribute.
monospaced The literal layout should be formatted with a monospaced font normal The literal layout should be formatted with the current font Specifies the class of literal layout A block of text in which line breaks and white space are to be reproduced faithfully If this element is the root element, it must have a version attribute.
Text that a user sees or might see on a computer screen If this element is the root element, it must have a version attribute.
A representation of what the user sees or might see on a computer screen If this element is the root element, it must have a version attribute.
A formal figure, generally an illustration, with a title example must not occur among the children or descendants of figure figure must not occur among the children or descendants of figure table must not occur among the children or descendants of figure equation must not occur among the children or descendants of figure If this element is the root element, it must have a version attribute.
A untitled figure If this element is the root element, it must have a version attribute.
A displayed media object (video, audio, image, etc.) If this element is the root element, it must have a version attribute.
An inline media object (video, audio, image, and so on) If this element is the root element, it must have a version attribute.
A wrapper for video data and its associated meta-information If this element is the root element, it must have a version attribute.
A wrapper for audio data and its associated meta-information If this element is the root element, it must have a version attribute.
A wrapper for image data and its associated meta-information If this element is the root element, it must have a version attribute.
A wrapper for a text description of an object and its associated meta-information If this element is the root element, it must have a version attribute.
Specifies the (horizontal) alignment of the video data Specifies the vertical alignment of the video data Determines if anamorphic scaling is forbidden Pointer to external video data If this element is the root element, it must have a version attribute.
Specifies the (horizontal) alignment of the video data Determines if anamorphic scaling is forbidden Specifies the vertical alignment of the video data Pointer to external audio data If this element is the root element, it must have a version attribute.
Specifies the (horizontal) alignment of the image data Specifies the vertical alignment of the image data Determines if anamorphic scaling is forbidden Pointer to external image data If this element is the root element, it must have a version attribute.
Identifies the encoding of the text in the external file Pointer to external text data If this element is the root element, it must have a version attribute.
Specifies the name of the parameter Specifies the value of the parameter Specifies the type of the value of the parameter Application specific parameters for a media player
A caption example must not occur among the children or descendants of caption figure must not occur among the children or descendants of caption table must not occur among the children or descendants of caption equation must not occur among the children or descendants of caption sidebar must not occur among the children or descendants of caption task must not occur among the children or descendants of caption caution must not occur among the children or descendants of caption important must not occur among the children or descendants of caption note must not occur among the children or descendants of caption tip must not occur among the children or descendants of caption warning must not occur among the children or descendants of caption If this element is the root element, it must have a version attribute.
A real-world address, generally a postal address If this element is the root element, it must have a version attribute.
A street address in an address
A post office box in an address
A postal code in an address
The name of a city in an address
A state or province in an address
The name of a country
A telephone number
A fax number
Uncategorized information in address
The institutional affiliation of an individual
A brief description of an affiliation
The title of an individual in an organization
consortium A consortium corporation A corporation informal An informal organization nonprofit A non-profit organization Specifies the nature of the organization Specifies the nature of the organization other Indicates a non-standard organization class Identifies the non-standard nature of the organization The name of an organization
A division of an organization
The page numbers of an article as published
The personal name of an individual
The name of an individual author
Wrapper for author information when a document has multiple authors or collaborators
Identifies a collaborator
The initials or other short identifier for an author
A person and associated metadata
An organization and associated metadata
A wrapper for document meta-information about a conference
The dates of a conference for which a document was written
The title of a conference for which a document was written
An identifier, frequently numerical, associated with a conference for which a document was written
The sponsor of a conference for which a document was written
The contract number of a document
The sponsor of a contract
Copyright information about a document
The year of publication of a document
The name of the individual or organization that holds a copyright
Additional content for the cover of a publication
The date of publication or revision of a document
The name or number of an edition of a document
The name of the editor of a document
An identifier for a document
A citation of a bibliographic identifier
The source of a document
hasformat The described resource pre-existed the referenced resource, which is essentially the same intellectual content presented in another format haspart The described resource includes the referenced resource either physically or logically hasversion The described resource has a version, edition, or adaptation, namely, the referenced resource isformatof The described resource is the same intellectual content of the referenced resource, but presented in another format ispartof The described resource is a physical or logical part of the referenced resource isreferencedby The described resource is referenced, cited, or otherwise pointed to by the referenced resource isreplacedby The described resource is supplanted, displaced, or superceded by the referenced resource isrequiredby The described resource is required by the referenced resource, either physically or logically isversionof The described resource is a version, edition, or adaptation of the referenced resource; changes in version imply substantive changes in content rather than differences in format references The described resource references, cites, or otherwise points to the referenced resource replaces The described resource supplants, displaces, or supersedes the referenced resource requires The described resource requires the referenced resource to support its function, delivery, or coherence of content Identifies the type of relationship Identifies the type of relationship othertype The described resource has a non-standard relationship with the referenced resource A keyword that identififes the type of the non-standard relationship The relationship of a document to another
dcmipoint The DCMI Point identifies a point in space using its geographic coordinates iso3166 ISO 3166 Codes for the representation of names of countries dcmibox The DCMI Box identifies a region of space using its geographic limits tgn The Getty Thesaurus of Geographic Names Specifies the type of spatial coverage Specifies the type of spatial coverage otherspatial Identifies a non-standard type of coverage A keyword that identifies the type of non-standard coverage dcmiperiod A specification of the limits of a time interval w3c-dtf W3C Encoding rules for dates and times—a profile based on ISO 8601 Specifies the type of temporal coverage Specifies the type of temporal coverage othertemporal Specifies a non-standard type of coverage A keyword that identifies the type of non-standard coverage The spatial or temporal coverage of a document
A statement of legal obligations or requirements If this element is the root element, it must have a version attribute.
copyeditor A copy editor graphicdesigner A graphic designer productioneditor A production editor technicaleditor A technical editor translator A translator indexer An indexer proofreader A proof-reader coverdesigner A cover designer interiordesigner An interior designer illustrator An illustrator reviewer A reviewer typesetter A typesetter conversion A converter (a persons responsible for conversion, not an application) Identifies the nature of the contributor Identifies the nature of the non-standard contribution Identifies the nature of the contributor other Identifies a non-standard contribution A person or entity, other than an author or editor, credited in a document
The numbers of the pages in a book, for use in a bibliographic entry
A summary of the contributions made to a document by a credited source
The title of a person
A given name of a person
The given name of a person
An inherited or family name; in western cultures the last name
The portion of a person's name indicating a relationship to ancestors
A component of a person's name that is not a first name, surname, or lineage
The printing history of a document
The date of publication of a document
The publisher of a document
The name of the publisher of a document
Information about a particular release of a document
A history of the revisions to a document If this element is the root element, it must have a version attribute.
An entry describing a single revision in the history of the revisions to a document
A document revision number
A description of a revision to a document
A extended description of a revision to a document
Numbers of the volumes in a series of books
The volume number of a document in a set (as of books in a set or articles in a journal)
The number of an issue of a journal
A software or application package
An email address
A comment on a line in a verbatim listing
command A command function A function option An option Identifies the class of parameter A value or a symbolic reference to a value
command A command function A function option An option parameter A parameter Identifies the nature of the replaceable text Content that may or must be replaced by the user
Identifies the type of URI specified A Uniform Resource Identifier
An abbreviation, especially one followed by a period
An often pronounceable word made from the initial (or selected) letters of a name or phrase
An inline bibliographic reference to another published work
A citation to a reference page
The title of a reference page
A reference volume number
article An article bbs A bulletin board system book A book cdrom A CD-ROM chapter A chapter (as of a book) dvd A DVD emailmessage An email message gopher A gopher page journal A journal manuscript A manuscript newsposting A posting to a newsgroup part A part (as of a book) refentry A reference entry section A section (as of a book or article) series A series set A set (as of books) webpage A web page wiki A wiki page Identifies the nature of the publication being cited The title of a cited work
Emphasized text
A limited span of emphasized text
A word or phrase in a language other than the primary language of the document
A limited word or phrase in a language other than the primary language of the document
A span of text
A limited span of text
An inline quotation
A limited inline quotation
A subscript (as in H2 O, the molecular formula for water)
A superscript (as in x2 , the mathematical notation for x multiplied by itself)
copyright A copyright registered A registered copyright service A service trade A trademark Identifies the class of trade mark A trademark
A word meant specifically as a word and not representing anything else
A cross reference to a footnote (a footnote mark) @linkend on footnoteref must point to a footnote.
A cross reference to another part of the document
A hypertext link
Holds additional information that may be used by the application when resolving the link Specifies the URI of the document in which the link target appears Specifies the location of the link target in the document Identifies application-specific customization of the link behavior A link that addresses its target indirectly
A spot in the document
A text-only annotation, often used for accessibility
Identifies the editorial or publication status of the element on which it occurs
A collection of books If this element is the root element, it must have a version attribute.
A book If this element is the root element, it must have a version attribute.
The dedication of a book or other component If this element is the root element, it must have a version attribute.
Acknowledgements of a book or other component If this element is the root element, it must have a version attribute.
Text at the back of a book describing facts about its production If this element is the root element, it must have a version attribute.
An appendix in a book or article If this element is the root element, it must have a version attribute.
A chapter, as of a book If this element is the root element, it must have a version attribute.
A division in a book If this element is the root element, it must have a version attribute.
Introductory matter preceding the first chapter of a book If this element is the root element, it must have a version attribute.
An introduction to the contents of a part If this element is the root element, it must have a version attribute.
A recursive section If this element is the root element, it must have a version attribute.
A section of a document with no subdivisions If this element is the root element, it must have a version attribute.
faq A collection of frequently asked questions. journalarticle An article in a journal or other periodical. productsheet A description of a product. specification A specification. techreport A technical report. whitepaper A white paper. Identifies the nature of the article An article If this element is the root element, it must have a version attribute.
Identifies one or more annotations that apply to this element
Identifies one ore more elements to which this annotation applies An annotation annotation must not occur among the children or descendants of annotation If this element is the root element, it must have a version attribute.
Identifies the XLink extended link type An XLink extended type element may not occur as the direct child of an XLink extended type element. extended An XLink extended link type Identifies the XLink locator link type An XLink locator type element must occur as the direct child of an XLink extended type element. locator An XLink locator link type Identifies the XLink arc link type An XLink arc type element must occur as the direct child of an XLink extended type element. arc An XLink arc link type Identifies the XLink resource link type An XLink resource type element must occur as the direct child of an XLink extended type element. resource An XLink resource link type Identifies the XLink title link type An XLink title type element must occur as the direct child of an XLink extended, locator, or arc type element. title An XLink title link type Specifies the XLink traversal-from Specifies the XLink label Specifies the XLink traversal-to
Identifies the XLink link type extended An XLink extended link An XLink extended link
Identifies the XLink link type locator An XLink locator link An XLink locator in an extendedlink
Identifies the XLink link type arc An XLink arc link An XLink arc in an extendedlink
A top-level section of document If this element is the root element, it must have a version attribute.
A subsection within a sect1 If this element is the root element, it must have a version attribute.
A subsection within a sect2 If this element is the root element, it must have a version attribute.
A subsection within a sect3 If this element is the root element, it must have a version attribute.
A subsection within a sect4 If this element is the root element, it must have a version attribute.
A collection of reference entries If this element is the root element, it must have a version attribute.
A reference page (originally a UNIX man-style reference page) If this element is the root element, it must have a version attribute.
Meta-information for a reference entry
source The name of the software product or component to which this topic applies version The version of the software product or component to which this topic applies manual The section title of the reference page (e.g., User Commands) sectdesc The section title of the reference page (believed synonymous with "manual" but in wide use) software The name of the software product or component to which this topic applies (e.g., SunOS x.y; believed synonymous with "source" but in wide use) Identifies the kind of miscellaneous information Identifies the nature of non-standard miscellaneous information Identifies the kind of miscellaneious information other Indicates that the information is some 'other' kind.
Meta-information for a reference entry other than the title and volume number
The name, purpose, and classification of a reference page
A description of the topic of a reference page
The name of (one of) the subject(s) of a reference page
A short (one sentence) synopsis of the topic of a reference page
The scope or other indication of applicability of a reference entry
A syntactic synopsis of the subject of the reference page If this element is the root element, it must have a version attribute.
A recursive section in a refentry If this element is the root element, it must have a version attribute.
A major subsection of a reference entry If this element is the root element, it must have a version attribute.
A subsection of a refsect1 If this element is the root element, it must have a version attribute.
A subsection of a refsect2 If this element is the root element, it must have a version attribute.
Specifies the base form of the term, the one that appears in the glossary. This allows adjectival, plural, and other variations of the term to appear in the element. The element content is the default base form.
A wrapper for a list of glossary entries If this element is the root element, it must have a version attribute.
Specifies the string by which the element's content is to be sorted; if unspecified, the content is used An entry in a glossary or glosslist
Specifies a list of keywords for the definition A definition in a glossentry
Identifies the other term A cross-reference from one glossentry to another @otherterm on glosssee must point to a glossentry.
Identifies the other term A cross-reference from one glossentry to another @otherterm on glossseealso must point to a glossentry.
The first occurrence of a term @linkend on firstterm must point to a glossentry.
The first occurrence of a term, with limited content @linkend on firstterm must point to a glossentry.
A glossary term @linkend on glossterm must point to a glossentry.
A glossary term @linkend on glossterm must point to a glossentry.
A glossary If this element is the root element, it must have a version attribute.
A division in a glossary If this element is the root element, it must have a version attribute.
An inline definition of a term A termdef must contain exactly one firstterm
Identifies the relationship between the bibliographic elemnts
A raw entry in a bibliography
A cooked entry in a bibliography
A raw container for related bibliographic information
A cooked container for related bibliographic information
Untyped bibliographic information
A bibliography If this element is the root element, it must have a version attribute.
A section of a bibliography If this element is the root element, it must have a version attribute.
A wrapper for a list of bibliography entries If this element is the root element, it must have a version attribute.
The units (for example, pages) used to identify the beginning and ending of a reference. Identifies the beginning of a reference; the location within the work that is being referenced. Identifies the end of a reference. A cross-reference to a bibliographic entry
normal Normal preferred Preferred Specifies the significance of the term Specifies the IDs of the elements to which this term applies Indicates the page on which this index term occurs in some version of the printed document all All indexes global The global index (as for a combined index of a set of books) local The local index (the index for this document only) Specifies the scope of the index term Specifies the string by which the term is to be sorted; if unspecified, the term content is used Specifies the target index for this term
A set of index terms in the meta-information of a document
Identifies the class of index term singular A singular index term A wrapper for an indexed term
Identifies the class of index term startofrange The start of a range A wrapper for an indexed term that covers a range
Identifies the class of index term endofrange The end of a range Points to the start of the range Identifies the end of a range associated with an indexed term
The primary word or phrase under which an index term should be sorted
A secondary word or phrase in an index term
A tertiary word or phrase in an index term
normal under Part of an index term directing the reader instead to another entry in the index
normal under Part of an index term directing the reader also to another entry in the index
An index to a book or part of a book If this element is the root element, it must have a version attribute.
An index to a set of books If this element is the root element, it must have a version attribute.
A division in an index If this element is the root element, it must have a version attribute.
An entry in an index
A primary term in an index entry, not in the text
A secondary term in an index entry, rather than in the text
A tertiary term in an index entry, rather than in the text
A See entry in an index, rather than in the text
A See also entry in an index, rather than in the text
Indicates the page on which this element occurs in some version of the printed document
A table of contents If this element is the root element, it must have a version attribute.
A division in a table of contents If this element is the root element, it must have a version attribute.
A component title in a table of contents
A task to be completed If this element is the root element, it must have a version attribute.
A summary of a task If this element is the root element, it must have a version attribute.
The prerequisites for a task If this element is the root element, it must have a version attribute.
Information related to a task If this element is the root element, it must have a version attribute.
calspair Coordinates expressed as a pair of CALS graphic coordinates. linecolumn Coordinates expressed as a line and column. linecolumnpair Coordinates expressed as a pair of lines and columns. linerange Coordinates expressed as a line range. Identifies the units used in the coords attribute. The default units vary according to the type of callout specified: calspair for graphics and linecolumn for line-oriented elements. Indicates that non-standard units are used for this area . In this case otherunits must be specified. other Coordinates expressed in some non-standard units. Identifies the units used in the coords attribute when the units attribute is other . This attribute is forbidden otherwise.
A list of callout s If this element is the root element, it must have a version attribute.
Identifies the areas described by this callout. A called out description of a marked area
A program listing with associated areas used in callouts If this element is the root element, it must have a version attribute.
A collection of regions in a graphic or code example
Point to the callout s which refer to this area. (This provides bidirectional linking which may be useful in online presentation.) Specifies an identifying number or string that may be used in presentation. The area label might be drawn on top of the figure, for example, at the position indicated by the coords attribute. Provides the coordinates of the area. The coordinates must be interpreted using the units specified. A region defined for a callout in a graphic or code example
A region defined for a callout in a graphic or code example
A set of related areas in a graphic or code example
A screen with associated areas used in callouts If this element is the root element, it must have a version attribute.
A wrapper for an image object with callouts If this element is the root element, it must have a version attribute.
The location of a callout embedded in text
A cross reference to a co
A set of EBNF productions If this element is the root element, it must have a version attribute.
A production in a set of EBNF productions
The left-hand side of an EBNF production
The right-hand side of an EBNF production
Specifies a URI that points to a production where the nonterminal is defined A non-terminal in an EBNF production
A constraint in an EBNF production
A cross-reference to an EBNF production
The definition of a constraint in an EBNF production If this element is the root element, it must have a version attribute.
Specifies the alignment character when align is set to char . Specifies the percentage of the column's total width that should appear to the left of the first occurance of the character identified in char when align is set to char . 0 100 Specifies how the table is to be framed. Note that there is no way to obtain a border on only the starting edge (left, in left-to-right writing systems) of the table. all Frame all four sides of the table. In some environments with limited control over table border formatting, such as HTML, this may imply additional borders. bottom Frame only the bottom of the table. none Place no border on the table. In some environments with limited control over table border formatting, such as HTML, this may disable other borders as well. sides Frame the left and right sides of the table. top Frame the top of the table. topbot Frame the top and bottom of the table. Specifies the presence or absence of the column separator 0 No column separator rule. 1 Provide a column separator rule on the right Specifies the presence or absence of the row separator 0 No row separator rule. 1 Provide a row separator rule below Specifies the orientation of the table land 90 degrees counter-clockwise from the rest of the text flow. port The same orientation as the rest of the text flow. Specifies the table style Indicates whether or not the entries in the first column should be considered row headers firstcol Indicates that entries in the first column of the table are functionally row headers (analogous to the way that a thead provides column headers). headers Indicates that row headers are identified by use of the headers attribute on entries in the table. norowheader Indicates that entries in the first column have no special significance with respect to column headers. Specifies the horizontal alignment of text in an entry. center Centered. char Aligned on a particular character. justify Left and right justified. left Left justified. right Right justified. Specifies the vertical alignment of text in an entry. bottom Aligned on the bottom of the entry. middle Aligned in the middle. top Aligned at the top of the entry. Specifies a column specification by name. Specifies a starting column by name. Specifies a span by name. Specifies a starting column by name. Specifies an ending column by name. Provides a name for a column specification. Provides a name for a span specification.
Additional style information for downstream processing; typically the name of a style. The number of columns in the table. Must be an integer greater than zero. A wrapper for the main content of a table, or part of a table
The number of the column to which this specification applies. Must be greater than any preceding column number. Defaults to one more than the number of the preceding column, if there is one, or one. Specifies the width of the column. Specifications for a column in a table
Specifies a starting column by name. Specifies an ending column by name. Formatting information for a spanned column in a table
A table header consisting of one or more rows
A table footer consisting of one or more rows
A wrapper for the rows of a table or informal table
A row in a table
Specifies the number of additional rows which this entry occupies. Defaults to zero. Specifies the rotation of this entry. A value of 1 (true) rotates the cell 90 degrees counter-clockwise. A value of 0 (false) leaves the cell unrotated. 0 Do not rotate the cell. 1 Rotate the cell 90 degrees counter-clockwise. Specifies the scope of a header. row Applies to the row col Applies to the column rowgroup Applies to the row group colgroup Applies to the column group Specifies the entry or entries which serve as headers for this element. A cell in a table table must not occur among the children or descendants of entry informaltable must not occur among the children or descendants of entry
Additional style information for downstream processing; typically the name of a style. The number of columns in the entry table. Must be an integer greater than zero. A subtable appearing in place of an entry in a table
A table header consisting of one or more rows
A wrapper for the rows of a table or informal table
A row in a table
Indicates if the short or long title should be used in a List of Tables 0 Indicates that the full title should be used. 1 Indicates that the short short title (titleabbrev) should be used. Indicates if the table should appear in a List of Tables 0 Indicates that the table should not occur in the List of Tables. 1 Indicates that the table should appear in the List of Tables. A formal table in a document example must not occur among the children or descendants of table figure must not occur among the children or descendants of table equation must not occur among the children or descendants of table If this element is the root element, it must have a version attribute.
A table without a title If this element is the root element, it must have a version attribute.
This attribute assigns a class name or set of class names to an element. Any number of elements may be assigned the same class name or names. Multiple class names must be separated by white space characters. This attribute specifies style information for the current element. This attribute offers advisory information about the element for which it is set. This attribute specifies the base language of an element's attribute values and text content. The default value of this attribute is unknown. Occurs when the pointing device button is clicked over an element. Occurs when the pointing device button is double clicked over an element. Occurs when the pointing device button is pressed over an element. Occurs when the pointing device button is released over an element. Occurs when the pointing device is moved onto an element. Occurs when the pointing device is moved while it is over an element. Occurs when the pointing device is moved away from an element. Occurs when a key is pressed and released over an element. Occurs when a key is pressed down over an element. Occurs when a key is released over an element. Specifies the alignment of data and the justification of text in a cell. left Left-flush data/Left-justify text. This is the default value for table data. center Center data/Center-justify text. This is the default value for table headers. right Right-flush data/Right-justify text. justify Double-justify text. char Align text around a specific character. If a user agent doesn't support character alignment, behavior in the presence of this value is unspecified. This attribute specifies a single character within a text fragment to act as an axis for alignment. The default value for this attribute is the decimal point character for the current language as set by the lang attribute (e.g., the period in English and the comma in French). User agents are not required to support this attribute. When present, this attribute specifies the offset to the first occurrence of the alignment character on each line. If a line doesn't include the alignment character, it should be horizontally shifted to end at the alignment position. When charoff is used to set the offset of an alignment character, the direction of offset is determined by the current text direction (set by the dir attribute). In left-to-right texts (the default), offset is from the left margin. In right-to-left texts, offset is from the right margin. User agents are not required to support this attribute. An explicit offset. [0-9]+% A percentage offset. Specifies the vertical position of data within a cell. top Cell data is flush with the top of the cell. middle Cell data is centered vertically within the cell. This is the default value. bottom Cell data is flush with the bottom of the cell. baseline All cells in the same row as a cell whose valign attribute has this value should have their textual data positioned so that the first text line occurs on a baseline common to all cells in the row. This constraint does not apply to subsequent text lines in these cells. Provides a summary of the table's purpose and structure for user agents rendering to non-visual media such as speech and Braille. Specifies the desired width of the entire table and is intended for visual user agents. When the value is a percentage value, the value is relative to the user agent's available horizontal space. In the absence of any width specification, table width is determined by the user agent. An explicit width. [0-9]+% A percentage width. Specifies the width (in pixels only) of the frame around a table. Specifies which sides of the frame surrounding a table will be visible. void No sides. This is the default value. above The top side only. below The bottom side only. hsides The top and bottom sides only. lhs The left-hand side only. rhs The right-hand side only. vsides The right and left sides only. box All four sides. border All four sides. Specifies which rules will appear between cells within a table. The rendering of rules is user agent dependent. none No rules. This is the default value. groups Rules will appear between row groups (see thead, tfoot, and tbody) and column groups (see colgroup and col) only. rows Rules will appear between rows only. cols Rules will appear between columns only. all Rules will appear between all rows and columns. Specifies how much space the user agent should leave between the left side of the table and the left-hand side of the leftmost column, the top of the table and the top side of the topmost row, and so on for the right and bottom of the table. The attribute also specifies the amount of space to leave between cells. An explicit spacing. [0-9]+% A percentage spacing. Specifies the amount of space between the border of the cell and its contents. If the value of this attribute is a pixel length, all four margins should be this distance from the contents. If the value of the attribute is a percentage length, the top and bottom margins should be equally separated from the content based on a percentage of the available vertical space, and the left and right margins should be equally separated from the content based on a percentage of the available horizontal space. An explicit padding. [0-9]+% A percentage padding. Provides an abbreviated form of the cell's content and may be rendered by user agents when appropriate in place of the cell's content. Abbreviated names should be short since user agents may render them repeatedly. For instance, speech synthesizers may render the abbreviated headers relating to a particular cell before rendering that cell's content. This attribute may be used to place a cell into conceptual categories that can be considered to form axes in an n-dimensional space. User agents may give users access to these categories (e.g., the user may query the user agent for all cells that belong to certain categories, the user agent may present a table in the form of a table of contents, etc.). Please consult an HTML reference for more details. Specifies the list of header cells that provide header information for the current data cell. The value of this attribute is a space-separated list of cell names; those cells must be named by setting their id attribute. Authors generally use the headers attribute to help non-visual user agents render header information about data cells (e.g., header information is spoken prior to the cell data), but the attribute may also be used in conjunction with style sheets. Specifies the set of data cells for which the current header cell provides header information. This attribute may be used in place of the headers attribute, particularly for simple tables. row The current cell provides header information for the rest of the row that contains it col The current cell provides header information for the rest of the column that contains it. rowgroup The header cell provides header information for the rest of the row group that contains it. colgroup The header cell provides header information for the rest of the column group that contains it. Specifies the number of rows spanned by the current cell. The default value of this attribute is one (1 ). The value zero (0 ) means that the cell spans all rows from the current row to the last row of the table section (thead , tbody , or tfoot ) in which the cell is defined. Specifies the number of columns spanned by the current cell. The default value of this attribute is one (1 ). The value zero (0 ) means that the cell spans all columns from the current column to the last column of the column group (colgroup ) in which the cell is defined.
A formal (captioned) HTML table in a document example must not occur among the children or descendants of table figure must not occur among the children or descendants of table equation must not occur among the children or descendants of table If this element is the root element, it must have a version attribute.
An HTML table without a title If this element is the root element, it must have a version attribute.
An HTML table caption example must not occur among the children or descendants of caption figure must not occur among the children or descendants of caption table must not occur among the children or descendants of caption equation must not occur among the children or descendants of caption sidebar must not occur among the children or descendants of caption task must not occur among the children or descendants of caption caution must not occur among the children or descendants of caption important must not occur among the children or descendants of caption note must not occur among the children or descendants of caption tip must not occur among the children or descendants of caption warning must not occur among the children or descendants of caption If this element is the root element, it must have a version attribute.
This attribute, whose value must be an integer > 0, specifies the number of columns spanned by the col element; the col element shares its attributes with all the columns it spans. The default value for this attribute is 1 (i.e., a single column). If the span attribute is set to N > 1, the current col element shares its attributes with the next N-1 columns. Specifies a default width for each column spanned by the current col element. It has the same meaning as the width attribute for the colgroup element and overrides it. Specifications for a column in an HTML table
This attribute, which must be an integer > 0, specifies the number of columns in a column group. In the absence of a span attribute, each colgroup defines a column group containing one column. If the span attribute is set to N > 0, the current colgroup element defines a column group containing N columns. User agents must ignore this attribute if the colgroup element contains one or more col elements. This attribute specifies a default width for each column in the current column group. In addition to the standard pixel, percentage, and relative values, this attribute allows the special form 0* (zero asterisk) which means that the width of the each column in the group should be the minimum width necessary to hold the column's contents. This implies that a column's entire contents must be known before its width may be correctly computed. Authors should be aware that specifying 0* will prevent visual user agents from rendering a table incrementally. This attribute is overridden for any column in the column group whose width is specified via a col element. A group of columns in an HTML table
A table header consisting of one or more rows in an HTML table
A table footer consisting of one or more rows in an HTML table
A wrapper for the rows of an HTML table or informal HTML table
A row in an HTML table
A table header entry in an HTML table
A table entry in an HTML table
A detailed set of messages, usually error messages If this element is the root element, it must have a version attribute.
A wrapper for an entry in a message set
The audience to which the message relevant The origin of the message The level of importance or severity of a message A wrapper for a simpler entry in a message set
A message in a message set If this element is the root element, it must have a version attribute.
The primary component of a message in a message set If this element is the root element, it must have a version attribute.
A subcomponent of a message in a message set If this element is the root element, it must have a version attribute.
A related component of a message in a message set If this element is the root element, it must have a version attribute.
The actual text of a message component in a message set
Information about a message in a message set
The level of importance or severity of a message in a message set
The origin of a message in a message set
The audience to which a message in a message set is relevant
Explanatory material relating to a message in a message set If this element is the root element, it must have a version attribute.
none No labels number Numeric labels qanda "Q:" and "A:" labels Specifies the default labelling A question-and-answer set If this element is the root element, it must have a version attribute.
A titled division in a qandaset If this element is the root element, it must have a version attribute.
A question/answer set within a qandaset If this element is the root element, it must have a version attribute.
A question in a qandaset
An answer to a question posed in a qandaset
A label on a question or answer
A displayed mathematical equation example must not occur among the children or descendants of equation figure must not occur among the children or descendants of equation table must not occur among the children or descendants of equation equation must not occur among the children or descendants of equation If this element is the root element, it must have a version attribute.
A displayed mathematical equation without a title If this element is the root element, it must have a version attribute.
A mathematical equation or expression occurring inline
A mathematical phrase that can be represented with ordinary text and a small amount of markup
Specifies that the format of the data is MathML mathml Specifies MathML. A MathML expression in a media object If this element is the root element, it must have a version attribute.
Any element from the MathML namespace
Specifies that the format of the data is SVG svg Specifies SVG. An SVG drawing in a media object If this element is the root element, it must have a version attribute.
Any element from the SVG namespace
A string of formatting markup in text that is to be represented literally
attribute An attribute attvalue An attribute value element An element emptytag An empty element tag endtag An end tag genentity A general entity localname The local name part of a qualified name namespace A namespace numcharref A numeric character reference paramentity A parameter entity pi A processing instruction prefix The prefix part of a qualified name comment An SGML comment starttag A start tag xmlpi An XML processing instruction Identifies the nature of the tag content Identifies the namespace of the tag content A component of XML (or SGML) markup
Identifies the class of symbol limit The value is a limit of some kind A name that is replaced by a value before processing
A unit of information
Inline text that is some literal value
Identifies the (computer) language of the code fragment An inline code fragment
Identifies the class of constant limit The value is a limit of some kind A programming or system constant
copyright A name with a copyright registered A name with a registered copyright service A name of a service trade A name which is trademarked Specifies the class of product name The formal name of a product
A number assigned to a product
altkey An alternate or secondary key constraint A constraint datatype A data type field A field foreignkey A foreign key group A group index An index key1 The first or primary key key2 An alternate or secondary key name A name primarykey The primary key procedure A (stored) procedure record A record rule A rule secondarykey The secondary key table A table user A user view A view Identifies the class of database artifact The name of a database, or part of a database
hardware A hardware application software A software application Identifies the class of application The name of a software program
A physical part of a computer system
The text on a button in a GUI
Graphic and/or text appearing as a icon in a GUI
The text of a label in a GUI
The name of a menu in a GUI
The name of a terminal menu item in a GUI
The name of a submenu in a GUI
A selection or series of selections from a menu
The conventional name of a mouse button
alt The "Alt" key altgr The "Alt Graph" key backspace The "Backspace" key command The "Command" key control The "Control" key delete The "Delete" key down The down arrow end The "End" key enter The "Enter" key escape The "Escape" key home The "Home" key insert The "Insert" key left The left arrow meta The "Meta" key option The "Option" key pagedown The page down key pageup The page up key right The right arrow return The "Return" key shift The "Shift" key space The spacebar tab The "Tab" key up The up arrow Identifies the function key Identifies the function key other Indicates a non-standard function key Specifies a keyword that identifies the non-standard key The text printed on a key on a keyboard
The internal, frequently numeric, identifier for a key on a keyboard
click A (single) mouse click. double-click A double mouse click. press A mouse or key press. seq Sequential clicks or presses. simul Simultaneous clicks or presses. Identifies the nature of the action taken. If keycombo contains more than one element, simul is the default, otherwise there is no default. Identifies the nature of the action taken other Indicates a non-standard action Identifies the non-standard action in some unspecified way. A combination of input actions
The symbolic name of a key on a keyboard
A graphical user interface (GUI) keyboard shortcut
A key combination for an action that is also accessible through a menu
A character or string indicating the start of an input field in a computer display
A software environment variable
devicefile A device directory A directory extension A filename extension headerfile A header file (as for a programming language) libraryfile A library file partition A partition (as of a hard disk) symlink A symbolic link Identifies the class of filename Specifies the path of the filename The name of a file
The name of an executable program or other software command
Data, generally text, displayed or presented by a computer
Data entered by the user
Specifies the character that should separate the command and its top-level arguments Indicates the displayed length of the command; this information may be used to intelligently indent command synopses which extend beyond one line A syntax summary for a software command If this element is the root element, it must have a version attribute.
norepeat Can not be repeated. repeat Can be repeated. Indicates whether or not repetition is possible. opt Formatted to indicate that it is optional. plain Formatted without indication. req Formatted to indicate that it is required. Indicates optionality. Indicates optionality.
An argument in a cmdsynopsis
A group of elements in a cmdsynopsis
An explicit line break in a command synopsis
A portion of a cmdsynopsis broken out from the main body of the synopsis
A reference to a fragment of a command synopsis @linkend on synopfragmentref must point to a synopfragment.
A general-purpose element for representing the syntax of commands or functions If this element is the root element, it must have a version attribute.
The syntax summary for a function definition If this element is the root element, it must have a version attribute.
Information supplementing the funcdefs of a funcsynopsis If this element is the root element, it must have a version attribute.
The prototype of a function
A function (subroutine) name and its return type
The name of a function or subroutine, as in a programming language
An empty element in a function synopsis indicating that the function in question takes no arguments
An empty element in a function synopsis indicating a variable number of arguments
A group of parameters
opt Formatted to indicate that it is optional. req Formatted to indicate that it is required. Indicates optionality. Information about a function parameter in a programming language
Parameters for a function referenced through a function pointer in a synopsis
class This is the synopsis of a class interface This is the synopsis of an interface Specifies the nature of the synopsis The syntax summary for a class definition If this element is the root element, it must have a version attribute.
Information supplementing the contents of a classsynopsis If this element is the root element, it must have a version attribute.
A class in an object-oriented programming language
An interface in an object-oriented programming language
An exception in an object-oriented programming language
Can be used to indicate that whitespace in the modifier should be preserved (for multi-line annotations, for example). preserve Extra whitespace and line breaks must be preserved.
Modifiers in a synopsis
The name of an interface
The name of an exception
The name of a field in a class definition If this element is the root element, it must have a version attribute.
The initializer for a fieldsynopsis
A syntax summary for a constructor If this element is the root element, it must have a version attribute.
A syntax summary for a destructor If this element is the root element, it must have a version attribute.
A syntax summary for a method If this element is the root element, it must have a version attribute.
The name of a method
Parameters to a method
A group of method parameters
The name of a variable
The value returned by a function
The classification of a value
The name of a class, in the object-oriented programming sense
A literal listing of all or part of a program If this element is the root element, it must have a version attribute.
A note of caution caution must not occur among the children or descendants of caution important must not occur among the children or descendants of caution note must not occur among the children or descendants of caution tip must not occur among the children or descendants of caution warning must not occur among the children or descendants of caution If this element is the root element, it must have a version attribute.
An admonition set off from the text caution must not occur among the children or descendants of important important must not occur among the children or descendants of important note must not occur among the children or descendants of important tip must not occur among the children or descendants of important warning must not occur among the children or descendants of important If this element is the root element, it must have a version attribute.
A message set off from the text caution must not occur among the children or descendants of note important must not occur among the children or descendants of note note must not occur among the children or descendants of note tip must not occur among the children or descendants of note warning must not occur among the children or descendants of note If this element is the root element, it must have a version attribute.
A suggestion to the user, set off from the text caution must not occur among the children or descendants of tip important must not occur among the children or descendants of tip note must not occur among the children or descendants of tip tip must not occur among the children or descendants of tip warning must not occur among the children or descendants of tip If this element is the root element, it must have a version attribute.
An admonition set off from the text caution must not occur among the children or descendants of warning important must not occur among the children or descendants of warning note must not occur among the children or descendants of warning tip must not occur among the children or descendants of warning warning must not occur among the children or descendants of warning If this element is the root element, it must have a version attribute.
An error code
An error name
An error message.
The classification of an error message
daemon A daemon or other system process (syslogd) domainname A domain name (example.com) etheraddress An ethernet address (00:05:4E:49:FD:8E) event An event of some sort (SIGHUP) eventhandler An event handler of some sort (hangup) filesystem A filesystem (ext3) fqdomainname A fully qualified domain name (my.example.com) groupname A group name (wheel) ipaddress An IP address (127.0.0.1) library A library (libncurses) macro A macro netmask A netmask (255.255.255.192) newsgroup A newsgroup (comp.text.xml) osname An operating system name (Hurd) process A process (gnome-cups-icon) protocol A protocol (ftp) resource A resource securitycontext A security context (a role, permission, or security token, for example) server A server (mail.example.com) service A service (ppp) systemname A system name (hephaistos) username A user name (ndw) Identifies the nature of the system item Identifies the nature of the non-standard system item Identifies the kind of systemitemgraphic identifier other Indicates that the system item is some 'other' kind. A system-related item or term
An option for a software command
Optional information
A unit of data associated with some part of a computer system
Identifies the topic type A modular unit of documentation not part of any particular narrative flow If this element is the root element, it must have a version attribute.
[^#]+ xml text An XInclude
An XInclude fallback