diff --git a/modules/ROOT/pages/syntax-quick-reference.adoc b/modules/ROOT/pages/syntax-quick-reference.adoc
index 6e44e75bd891cd427a7b7096034f1f1df5deacde..d7b2300c03e1c0b41cf82a628e452f9efc63358a 100644
--- a/modules/ROOT/pages/syntax-quick-reference.adoc
+++ b/modules/ROOT/pages/syntax-quick-reference.adoc
@@ -1101,7 +1101,6 @@ To learn more about the available attributes and substitution groups see:
* xref:attributes:document-attributes-reference.adoc[]
* xref:attributes:character-replacement-reference.adoc[]
-* xref:attributes:intrinsic-attributes-reference.adoc[]
* xref:subs:apply-subs-to-blocks.adoc#subs-groups[Substitution Groups]
.Counter attributes
diff --git a/modules/attributes/nav-ref.adoc b/modules/attributes/nav-ref.adoc
index 49c4bb1054964a4cd362869b8790380b327160e4..f184902759b55710ee1913476a04cf9db2685b25 100644
--- a/modules/attributes/nav-ref.adoc
+++ b/modules/attributes/nav-ref.adoc
@@ -1,6 +1,5 @@
* Reference
** xref:ROOT:syntax-quick-reference.adoc[]
-** xref:intrinsic-attributes-reference.adoc[]
** xref:document-attributes-reference.adoc[]
** xref:character-replacement-reference.adoc[]
** xref:ROOT:glossary.adoc[]
diff --git a/modules/attributes/pages/document-attributes-reference.adoc b/modules/attributes/pages/document-attributes-reference.adoc
index d2b73bf53f614170c04e2e9a303bb0106ff9523f..d1e4c035f730f345d0834bea6b52df4880f8c880 100644
--- a/modules/attributes/pages/document-attributes-reference.adoc
+++ b/modules/attributes/pages/document-attributes-reference.adoc
@@ -3,6 +3,7 @@
:y: Yes
:n: No
:endash: –
+:url-epoch: https://reproducible-builds.org/specs/source-date-epoch/
Document attributes are used either to configure behavior in the processor or to relay information about the document and its environment.
This page catalogs all the built-in (i.e., reserved) document attributes in AsciiDoc.
@@ -23,10 +24,10 @@ Numeric values and values shown in _italic_ are instructional and indicate a val
The attribute is simply turned on by being set.
* _empty_[=`effective`] -- In some cases, an empty value is interpreted by the processor as one of the allowable non-empty values.
This effective value is prefixed with an equals sign and enclosed in square brackets (e.g., [=`auto`]).
-The effective value will not be visible to an attribute reference.
+An attribute reference will resolve to an empty value rather than the effective value.
* (`implied`) -- Built-in attributes that are not set may have an implied value.
The implied value is enclosed in parentheses (e.g., (`attributes`)).
-An implied value cannot be resolved using an attribute reference.
+An implied value can't be resolved using an attribute reference.
+
If the attribute doesn't accept _any_ or _empty_, than you must only assign one of the allowable values or specified value type.
@@ -36,6 +37,229 @@ Otherwise, the assignment won't have any effect on the document.
If an attribute is not marked as _Header Only_, it can be set anywhere in the document, assuming the attribute is not locked by the API or CLI.
However, changing an attribute only affects behavior for content that follows the assignment (in document order).
+== Intrinsic attributes
+
+Intrinsic attributes are set automatically by the processor.
+These attributes provide information about the document being processed (e.g., `docfile`), the security mode under which the processor is running (e.g., `safe-mode-name`), and information about the user's environment (e.g., `user-home`).
+
+Many of these attributes are read only, which means they can't be modified (with some exceptions).
+Attributes which are not are marked as modifiable.
+Attributes marked as both modifiable and API/CLI Only can only be set from the API or CLI.
+All other attributes marked as modifiable must be set by the end of the header (i.e., Header Only).
+
+[cols="30m,20,^10,^10,30"]
+|===
+.>|Name .>|Allowable Values .>|Modifiable .>|API/CLI Only .>|Notes
+
+|backend
+|_any_ +
+_ex._ html5
+|{y}
+|{n}
+|The backend used to select and activate the converter that creates the output file.
+Usually named according to the output format (e.g., `html5`)
+
+|basebackend
+|_any_ +
+_ex._ html
+|{n}
+|n/a
+|The generic backend on which the backend is based.
+Typically derived from the backend value minus trailing numbers (e.g., the basebackend for `docbook5` is `docbook`).
+May also indicate the internal backend employed by the converter (e.g., the basebackend for `pdf` is `html`).
+
+|docdate
+|_date (ISO)_ +
+_ex._ 2019-01-04
+|{y}
+|{n}
+|Last modified date of the source document.^[<<note-docdatetime,1>>,<<note-sourcedateepoch,2>>]^
+
+|docdatetime
+|_datetime (ISO)_ +
+_ex._ 2019-01-04 19:26:06 UTC
+|{y}
+|{n}
+|Last modified date and time of the source document.^[<<note-docdatetime,1>>,<<note-sourcedateepoch,2>>]^
+
+|docdir
+|_directory path_ +
+_ex._ /home/user/docs
+|If input is a string
+|{y}
+|Full path of the directory that contains the source document.
+Empty if the safe mode is SERVER or SECURE (to conceal the file's location).
+
+|docfile
+|_file path_ +
+_ex._ /home/user/docs/userguide.adoc
+|If input is a string
+|{y}
+|Full path of the source document.
+Truncated to the basename if the safe mode is SERVER or SECURE (to conceal the file's location).
+
+|docfilesuffix
+|_file extension_ +
+_ex._ .adoc
+|If input is a string
+|{y}
+|File extension of the source document, including the leading period.
+
+|docname
+|_file stem basename_ +
+_ex._ userguide
+|If input is a string
+|{y}
+|Root name of the source document (no leading path or file extension).
+
+|doctime
+|_time (ISO)_ +
+_ex._ 19:26:06 UTC
+|{y}
+|{n}
+|Last modified time of the source document.^[<<note-docdatetime,1>>,<<note-sourcedateepoch,2>>]^
+
+|docyear
+|_integer_ +
+_ex._ {docyear}
+|{y}
+|{n}
+|Year that the document was last modified.^[<<note-docdatetime,1>>,<<note-sourcedateepoch,2>>]^
+
+|embedded
+|_empty_
+|{n}
+|n/a
+|Only set if content is being converted to an embedded document (i.e., body of document only).
+
+|filetype
+|_any_ +
+_ex._ html
+|If input is a string
+|{y}
+|File extension of the output file name (without leading period).
+
+|htmlsyntax
+|`html` +
+`xml`
+|{n}
+|n/a
+|Syntax used when generating the HTML output.
+Controlled by and derived from the backend name (html=html or xhtml=html).
+
+|localdate
+|_date (ISO)_ +
+_ex._ 2019-02-17
+|{y}
+|{n}
+|Date when the document was converted.^[<<note-sourcedateepoch,2>>]^
+
+|localdatetime
+|_datetime (ISO)_ +
+_ex._ 2019-02-17 19:31:05 UTC
+|{y}
+|{n}
+|Date and time when the document was converted.^[<<note-sourcedateepoch,2>>]^
+
+|localtime
+|_time (ISO)_ +
+_ex._ 19:31:05 UTC
+|{y}
+|{n}
+|Time when the document was converted.^[<<note-sourcedateepoch,2>>]^
+
+|localyear
+|_integer_ +
+_ex._ {localyear}
+|{y}
+|{n}
+|Year when the document was converted.^[<<note-sourcedateepoch,2>>]^
+
+|outdir
+|_directory path_ +
+_ex._ /home/user/docs/dist
+|{n}
+|n/a
+|Full path of the output directory.
+(Cannot be referenced in the content.
+Only available to the API once the document is converted).
+
+|outfile
+|_file path_ +
+_ex._ /home/user/docs/dist/userguide.html
+|{n}
+|n/a
+|Full path of the output file.
+(Cannot be referenced in the content.
+Only available to the API once the document is converted).
+
+|outfilesuffix
+|_file extension_ +
+_ex._ .html
+|{y}
+|{n}
+|File extension of the output file (starting with a period) as determined by the backend (`.html` for `html`, `.xml` for `docbook`, etc.).
+
+|safe-mode-level
+|`0` +
+`1` +
+`10` +
+`20`
+|{n}
+|n/a
+|Numeric value of the safe mode setting.
+(0=UNSAFE, 1=SAFE, 10=SERVER, 20=SECURE).
+
+|safe-mode-name
+|`UNSAFE` +
+`SAFE` +
+`SERVER` +
+`SECURE`
+|{n}
+|n/a
+|Textual value of the safe mode setting.
+
+|safe-mode-unsafe
+|_empty_
+|{n}
+|n/a
+|Set if the safe mode is UNSAFE.
+
+|safe-mode-safe
+|_empty_
+|{n}
+|n/a
+|Set if the safe mode is SAFE.
+
+|safe-mode-server
+|_empty_
+|{n}
+|n/a
+|Set if the safe mode is SERVER.
+
+|safe-mode-secure
+|_empty_
+|{n}
+|n/a
+|Set if the safe mode is SECURE.
+
+|user-home
+|_directory path_ +
+_ex._ /home/user
+|{n}
+|n/a
+|Full path of the home directory for the current user.
+Masked as `.` if the safe mode is SERVER or SECURE.
+|===
+[[note-docdatetime]]^[1]^ Only reflects the last modified time of the source document file.
+It does not consider the last modified time of files which are included.
+
+[[note-sourcedateepoch]]^[2]^ If the SOURCE_DATE_EPOCH environment variable is set, the value assigned to this attribute is built from a UTC date object that corresponds to the timestamp (as an integer) stored in that environment variable.
+This override offers one way to make the conversion reproducible.
+See the {url-epoch}[source date epoch specification] for more information about the SOURCE_DATE_EPOCH environment variable.
+Otherwise, the date is expressed in the local time zone, which is reported as a time zone offset (e.g., `-0600`) or UTC if the time zone offset is 0).
+To force the use of UTC, set the `TZ=UTC` environment variable when invoking Asciidoctor.
+
== Compliance attributes
[cols="30m,20,^10,^10,30"]
@@ -105,7 +329,7 @@ Useful for storing the output in a source code control system as it prevents spu
(`@`)
|{n}
|{n}
-|Sets the seed value for the appendix number sequence.^[<<fn-number,1>>]^
+|Sets the seed value for the appendix number sequence.^[<<note-number,1>>]^
|appendix-refsig
|_any_ +
@@ -123,10 +347,10 @@ Useful for storing the output in a source code control system as it prevents spu
|chapter-number
|_number_ +
-(0)
+(`0`)
|{n}
|{n}
-|Sets the seed value for the chapter number sequence.^[<<fn-number,1>>]^
+|Sets the seed value for the chapter number sequence.^[<<note-number,1>>]^
_Book doctype only_.
|chapter-refsig
@@ -153,10 +377,10 @@ _Book doctype only_.
|example-number
|_number_ +
-(0)
+(`0`)
|{n}
|{n}
-|Sets the seed value for the example number sequence.^[<<fn-number,1>>]^
+|Sets the seed value for the example number sequence.^[<<note-number,1>>]^
|figure-caption
|_any_ +
@@ -167,10 +391,10 @@ _Book doctype only_.
|figure-number
|_number_ +
-(0)
+(`0`)
|{n}
|{n}
-|Sets the seed value for the figure number sequence.^[<<fn-number,1>>]^
+|Sets the seed value for the figure number sequence.^[<<note-number,1>>]^
|important-caption
|_any_ +
@@ -201,10 +425,10 @@ _Book doctype only_.
|listing-number
|_number_ +
-(0)
+(`0`)
|{n}
|{n}
-|Sets the seed value for the listing number sequence.^[<<fn-number,1>>]^
+|Sets the seed value for the listing number sequence.^[<<note-number,1>>]^
|manname-title
|_any_ +
@@ -263,10 +487,10 @@ _Book doctype only_.
|table-number
|_number_ +
-(0)
+(`0`)
|{n}
|{n}
-|Sets the seed value for the table number sequence.^[<<fn-number,1>>]^
+|Sets the seed value for the table number sequence.^[<<note-number,1>>]^
|tip-caption
|_any_ +
@@ -451,7 +675,7 @@ See xref:sections:id-prefix-and-separator.adoc#separator[Change the ID word sepa
|{startsb}+-{endsb}0{endash}5
|{n}
|{n}
-|Increases or decreases level of headings in include files.
+|Increases or decreases level of headings below assignment.
A leading + or - makes the value relative.
//<<include-partitioning>>
@@ -459,7 +683,8 @@ A leading + or - makes the value relative.
|_empty_
|{n}
|{n}
-|See xref:sections:part-numbers-and-labels.adoc#partnums[Part numbers].
+|Enables numbering of parts.
+See xref:sections:part-numbers-and-labels.adoc#partnums[Number book parts].
_Book doctype only_.
|sectanchors
@@ -490,7 +715,7 @@ See xref:sections:ids.adoc#disable[Disable ID generation].
|sectnumlevels
|0{endash}5 +
-(3)
+(`3`)
|{n}
|{n}
|xref:sections:numbers.adoc#numlevels[Controls depth of section numbering].
@@ -514,7 +739,7 @@ See xref:sections:ids.adoc#disable[Disable ID generation].
|toclevels
|1{endash}5 +
-(2)
+(`2`)
|{n}
|{y}
|xref:toc:section-depth.adoc[Maximum section level to display].
@@ -568,11 +793,11 @@ See xref:sections:ids.adoc#disable[Disable ID generation].
//<<naming-docinfo-files>>
|docinfodir
-|_directory_ +
-(base directory)
+|_directory path_
|{n}
|{y}
|Location of docinfo files.
+Defaults to directory of source file if not specified.
//<<locating-docinfo-files>>
|docinfosubs
@@ -655,7 +880,8 @@ _PDF converter only_.
Mutually exclusive with the `showtitle` attribute.
|outfilesuffix
-|*_file extension_*
+|*_file extension_* +
+_ex._ .html
|{y}
|{y}
|File extension of output file, including dot (`.`), such as `.html`.
@@ -663,7 +889,7 @@ Mutually exclusive with the `showtitle` attribute.
|pagewidth
|_integer_ +
-(425)
+(`425`)
|{n}
|{y}
|Page width used to calculate the absolute width of tables in the DocBook output.
@@ -678,7 +904,8 @@ _path segment_
|relfilesuffix
|*_file extension_* +
-_path segment_
+_path segment_ +
+_ex._ .html
|{y}
|{n}
|The path suffix (e.g., file extension) to add to relative xrefs.
@@ -718,7 +945,7 @@ Mutually exclusive with the `notitle` attribute.
|*_empty_*
|{y}
|{y}
-|Control whether webfonts are loaded, and which ones, when using the default stylesheet.
+|Control whether webfonts are loaded when using the default stylesheet.
When set to empty, uses the default font collection from Google Fonts.
A non-empty value replaces the `family` query string parameter in the Google Fonts URL.
//<<applying-a-theme>> and {url-org}/asciidoctor.org/issues/410[issue #410^]
@@ -772,12 +999,13 @@ Only relevant used when value of `icons` attribute is `font`.
Any other value is assumed to be an icontype and sets the value to empty (image-based icons).
|iconsdir
-|_directory_ +
-_url_
+|_directory path_ +
+_url_ +
+_ex._ ./images/icons
|{y}
|{n}
|Location of non-font-based image icons.
-Points to the _icons_ folder under `imagesdir` by default.
+Defaults to the _icons_ folder under `imagesdir` if `imagesdir` is specified and `iconsdir` is not specified.
|icontype
|`jpg` +
@@ -790,9 +1018,9 @@ Points to the _icons_ folder under `imagesdir` by default.
Only relevant when using image-based icons.
|imagesdir
-|_directory_ +
-_url_ +
-*_empty_*
+|*_empty_* +
+_directory path_ +
+_url_
|{y}
|{n}
|Location of image files.
@@ -825,7 +1053,7 @@ _url_ +
|Tells processor not to load CodeRay.
|highlightjsdir
-|_directory_ +
+|_directory path_ +
_url_ +
(default CDN URL)
|{n}
@@ -840,7 +1068,7 @@ _url_ +
|Name of theme used by highlight.js.
|prettifydir
-|_directory_ +
+|_directory path_ +
_url_ +
(default CDN URL)
|{n}
@@ -905,7 +1133,7 @@ Any other value is permitted, but must be supported by a custom syntax highlight
//<<normalize-block-indentation>>
|source-language
-|_Source code language name_
+|_source code language name_
|{n}
|{n}
|xref:verbatim:source-highlighter.adoc[Default language for source code blocks].
@@ -926,7 +1154,7 @@ Any other value is permitted, but must be supported by a custom syntax highlight
|copycss
|*_empty_* +
-_path_
+_file path_
|{y}
|{y}
|Copy CSS files to output.
@@ -957,9 +1185,9 @@ Can't be unset in SECURE mode.
Use CSS stylesheet instead.*
|stylesdir
-|`*.*` +
-_directory_ +
-_url_
+|_directory path_ +
+_url_ +
+`*.*`
|{y}
|{y}
|Location of CSS stylesheets.
@@ -1059,7 +1287,7 @@ Since these attributes deal with security, they can only be set from the API or
|max-attribute-value-size
|_integer_ (≥ 0) +
-*4096*
+`*4096*`
|If safe mode is SECURE
|{y}
|Limits maximum size (in bytes) of a resolved attribute value.
@@ -1068,14 +1296,14 @@ Since attributes can reference attributes, it's possible to create an output doc
|max-include-depth
|_integer_ (≥ 0) +
-*64*
-|{n}
+`*64*`
+|{y}
|{y}
|Curtail infinite include loops and to limit the opportunity to exploit nested includes to compound the size of the output document.
//<<include-directive>>
|===
-[[fn-number]]^[1]^ The `-number` attributes are created and managed automatically by the AsciiDoc processor for numbered blocks.
+[[note-number]]^[1]^ The `-number` attributes are created and managed automatically by the AsciiDoc processor for numbered blocks.
They are only used if the corresponding `-caption` attribute is set (e.g., `listing-caption`) and the block has a title.
In Asciidoctor, setting the `-number` attributes will influence the number used for subsequent numbered blocks of that type.
However, you should not rely on this behavior as it may change in future versions.
diff --git a/modules/attributes/pages/intrinsic-attributes-reference.adoc b/modules/attributes/pages/intrinsic-attributes-reference.adoc
deleted file mode 100644
index f78d4afa4955f9828952018de600e522e2ea6bd9..0000000000000000000000000000000000000000
--- a/modules/attributes/pages/intrinsic-attributes-reference.adoc
+++ /dev/null
@@ -1,156 +0,0 @@
-= Intrinsic Attributes Reference
-:url-epoch: https://reproducible-builds.org/specs/source-date-epoch
-
-The AsciiDoc processor automatically assigns values to various document attributes whenever a document is loaded or converted.
-These _intrinsic attributes_ provide information about the document being processed (e.g., `docfile`), the security mode under which the processor is running (e.g., `safe-mode-name`), and some information about the user's environment (e.g., `user-home`).
-Like all document attributes, the value of an intrinsic attributes can be accessed using an attribute reference.
-Many of these attributes are intended to be read only.
-
-// tag::table[]
-[#env-attributes-table%autowidth,cols="~m,~,~m"]
-|===
-|Attribute |Description |Example Value
-
-//|asciidoctor
-//|Set if the current processor is Asciidoctor.
-//|{asciidoctor}
-//
-//|asciidoctor-version
-//|Asciidoctor version.
-//|{asciidoctor-version}
-
-|backend
-|The backend used to select and activate the converter that creates the output file.
-Usually named according to the output format (e.g., `html5`)
-|html5
-
-|basebackend
-|The generic backend on which the backend is based.
-Typically the backend value minus any trailing numbers (e.g., the basebackend for `docbook5` is `docbook`).
-May also indicate the internal backend employed by the converter (e.g., the basebackend for `pdf` is `html`).
-|html
-
-|docdate
-|Last modified date of the source document.^[<<note_docdatetime,1>>,<<note_sourcedateepoch,2>>]^
-|2019-01-04
-
-|docdatetime
-|Last modified date and time of the source document.^[<<note_docdatetime,1>>,<<note_sourcedateepoch,2>>]^
-|2019-01-04 19:26:06 UTC
-
-|docdir
-|Full path of the directory that contains the source document.
-Empty if the safe mode is SERVER or SECURE (to conceal the file's location).
-|/home/user/docs
-
-|docfile
-|Full path of the source document.
-Truncated to the basename if the safe mode is SERVER or SECURE (to conceal the file's location).
-|/home/user/docs/userguide.adoc
-
-|docfilesuffix
-|File extension of the source document, including the leading period.
-|.adoc
-
-|docname
-|Root name of the source document (no leading path or file extension).
-|userguide
-
-|doctime
-|Last modified time of the source document.^[<<note_docdatetime,1>>,<<note_sourcedateepoch,2>>]^
-|19:26:06 UTC
-
-|doctype
-|Document type (article, book, inline, or manpage).
-|article
-
-|docyear
-|Year that the document was last modified.^[<<note_docdatetime,1>>,<<note_sourcedateepoch,2>>]^
-|{docyear}
-
-|embedded
-|Set if content is being converted to an embedded document (i.e., body of document only).
-|
-
-|filetype
-|File extension of the output file name (without leading period).
-|html
-
-|htmlsyntax
-|Syntax used when generating the HTML output (html or xhtml).
-|html
-
-|localdate
-|Date when the document was converted.^[<<note_sourcedateepoch,2>>]^
-|2019-02-17
-
-|localdatetime
-|Date and time when the document was converted.^[<<note_sourcedateepoch,2>>]^
-|2019-02-17 19:31:05 UTC
-
-|localtime
-|Time when the document was converted.^[<<note_sourcedateepoch,2>>]^
-|19:31:05 UTC
-
-|localyear
-|Year when the document was converted.^[<<note_sourcedateepoch,2>>]^
-|{localyear}
-
-|outdir
-|Full path of the output directory.
-(Cannot be referenced in the content.
-Only available to the API once the document is converted).
-|/home/user/docs/dist
-
-|outfile
-|Full path of the output file.
-(Cannot be referenced in the content.
-Only available to the API once the document is converted).
-|/home/user/docs/dist/userguide.html
-
-|outfilesuffix
-|File extension of the output file (starting with a period) as determined by the backend (`.html` for `html`, `.xml` for `docbook`, etc.).
-(The value is not updated to match the file extension of the output file when one is specified explicitly).
-_Safe to modify._
-|.html
-
-|safe-mode-level
-|Numeric value of the safe mode setting.
-(UNSAFE=0, SAFE=10, SERVER=10, SECURE=20).
-|20
-
-|safe-mode-name
-|Textual value of the safe mode setting.
-|SERVER
-
-|safe-mode-unsafe
-|Set if the safe mode is UNSAFE.
-|
-
-|safe-mode-safe
-|Set if the safe mode is SAFE.
-|
-
-|safe-mode-server
-|Set if the safe mode is SERVER.
-|
-
-|safe-mode-secure
-|Set if the safe mode is SECURE.
-|
-
-|user-home
-|Full path of the home directory for the current user.
-Masked as `.` if the safe mode is SERVER or SECURE.
-|/home/user
-|===
-
-[[note_docdatetime]]^[1]^ Only reflects the last modified time of the source document file.
-It does not consider the last modified time of files which are included.
-
-[[note_sourcedateepoch]]^[2]^ If the SOURCE_DATE_EPOCH environment variable is set, the value assigned to this attribute is built from a UTC date object that corresponds to the timestamp (as an integer) stored in that environment variable.
-This override offers one way to make the conversion reproducible.
-See the {url-epoch}[source date epoch specification] for more information about the SOURCE_DATE_EPOCH environment variable.
-Otherwise, the date is expressed in the local time zone, which is reported as a time zone offset (e.g., `-0600`) or UTC if the time zone offset is 0).
-To force the use of UTC, set the `TZ=UTC` environment variable when invoking Asciidoctor.
-// end::table[]
diff --git a/modules/attributes/partials/attribute-terms.adoc b/modules/attributes/partials/attribute-terms.adoc
index a1de879d063022dae98573ef6c6305d5fab002d8..7e7965a299928b81b2e235307835767a7df945bc 100644
--- a/modules/attributes/partials/attribute-terms.adoc
+++ b/modules/attributes/partials/attribute-terms.adoc
@@ -7,7 +7,7 @@ Attribute value:: An attribute value is the built-in or user-defined replacement
Once assigned to an attribute, a value is applied to a document, either as a whole or wherever the attribute is referenced.
The value may be empty, an integer, or a string of characters.
Most built-in attributes have a restricted range of allowable values while user-defined attributes only accept strings.
-See the built-in xref:ref-intrinsic.adoc[intrinsic attributes] and xref:ref-document.adoc[document attributes] reference tables for more information.
+See the xref:document-attributes-reference.adoc[built-in document attributes] reference table for more information.
Also see <<default-def,default attribute value>>.
[[built-in-def]]Built-in attribute:: Built-in attributes are predefined and their names reserved.