markdown (5apr19)

git-svn-id: svn://tug.org/texlive/trunk@50784 c570f23f-e606-0410-a88d-b1316a301751

3 files changed, 4673 insertions, 753 deletions

diff --git a/Master/texmf-dist/source/generic/markdown/docstrip.cfg b/Master/texmf-dist/source/generic/markdown/docstrip.cfg
index 11f5397ec77..a03b51c87b3 100644
--- a/Master/texmf-dist/source/generic/markdown/docstrip.cfg
+++ b/Master/texmf-dist/source/generic/markdown/docstrip.cfg
@@ -22,7 +22,7 @@
 -- TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE^^J%
 -- SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.^^J%
 -- ^^J%
--- Copyright (C) 2018 Vít Novotný^^J%
+-- Copyright (C) 2016-2019 Vít Novotný^^J%
 -- ^^J%
 -- This work may be distributed and/or modified under the^^J%
 -- conditions of the LaTeX Project Public License, either version 1.3^^J%
@@ -62,7 +62,7 @@
 \let\luapostamble\empty
 \declarepreamble\texpreamble
 
-Copyright (C) 2018 Vít Novotný
+Copyright (C) 2016-2019 Vít Novotný
 
 This work may be distributed and/or modified under the
 conditions of the LaTeX Project Public License, either version 1.3
diff --git a/Master/texmf-dist/source/generic/markdown/markdown.dtx b/Master/texmf-dist/source/generic/markdown/markdown.dtx
index 0222985095c..3897b1f0b6f 100644
--- a/Master/texmf-dist/source/generic/markdown/markdown.dtx
+++ b/Master/texmf-dist/source/generic/markdown/markdown.dtx
@@ -53,14 +53,25 @@
   citations,
   definitionLists,
   fencedCode,
+  headerAttributes,
   hybrid,
   html,
   stripPercentSigns,
-  underscores=false]{markdown}
+  underscores=false,
+]{markdown}
 \markdownSetup{
   renderers = {
     codeSpan = {\inline{#1}},
-    link = {#1\footnote{See \url{#3}.}}}}
+    link = {#1\footnote{See \url{#3}.}},
+    headingFour = {%
+      \paragraph{#1}\leavevmode
+      \def\markdownRendererInterblockSeparator{%
+        \let\markdownRendererInterblockSeparator\par
+      }%
+      \noindent
+    },
+  },
+}
 
 % Set up the catcodes.
 \catcode`\_=12 % We won't be typesetting math and Lua contains lots of `_`.
@@ -476,12 +487,38 @@ table td {
   }
 }
 
+.tex sub, .latex sub, .latex sup {
+  text-transform: uppercase;
+}
+
+.tex sub, .latex sub {
+  vertical-align: -0.1ex;
+  margin-left: -0.1667em;
+  margin-right: -0.125em;
+}
+
+.tex, .latex, .tex sub, .latex sub {
+  font-size: 1em;
+}
+
+.latex sup {
+  font-size: 0.85em;
+  vertical-align: -0.35em;
+  margin-left: -0.36em;
+  margin-right: -0.15em;
+}
+
+abbr {
+  font-variant: small-caps;
+}
+
 %</manual-css>
 %<*manual>
 
 ---
 title:  Markdown Package User Manual
 author: Vít Novotný
+date:   v\markdownVersion{} (\markdownLastModified{})
 ---
 
 % \fi
@@ -492,12 +529,12 @@ author: Vít Novotný
 
 Introduction
 ============
-The [Markdown package][pkg] converts [markdown][] markup to TeX commands. The
-functionality is provided both as a Lua module, and as plain TeX, LaTeX, and
-ConTeXt macro packages that can be used to directly typeset TeX documents
+The [Markdown package][pkg] converts [markdown][] markup to \TeX{} commands. The
+functionality is provided both as a Lua module and as plain \TeX{}, \LaTeX{}, and
+\Hologo{ConTeXt} macro packages that can be used to directly typeset \TeX documents
 containing markdown markup. Unlike other convertors, the Markdown package
 makes it easy to redefine how each and every markdown element is rendered.
-Creative abuse of the markdown syntax is encouraged. <i class="em em-wink"></i>
+Creative abuse of the markdown syntax is encouraged. ;-)
 
  [markdown]: https://daringfireball.net/projects/markdown/basics/
              (Daring Fireball: Markdown Basics)
@@ -518,9 +555,9 @@ Creative abuse of the markdown syntax is encouraged. <i class="em em-wink"></i>
 % \iffalse
 
 This document is a user manual for the [Markdown package][pkg]. It provides
-beginner tutorials and code examples. For an in-depth description of the
-package requirements, interfaces, and implementation, please refer to the
-[technical documentation][techdoc].
+tutorials and code examples. For an in-depth description of the package
+requirements, interfaces, and implementation, please refer to the [technical
+documentation][techdoc].
 
  [techdoc]: http://mirrors.ctan.org/macros/generic/markdown/markdown.pdf
             (A Markdown Interpreter for TeX)
@@ -530,11 +567,11 @@ package requirements, interfaces, and implementation, please refer to the
 % \fi
 %  \begin{macrocode}
 local metadata = {
-    version   = "2.5.6",
+    version   = "2.7.0",
     comment   = "A module for the conversion from markdown to plain TeX",
     author    = "John MacFarlane, Hans Hagen, Vít Novotný",
     copyright = {"2009-2016 John MacFarlane, Hans Hagen",
-                 "2016-2018 Vít Novotný"},
+                 "2016-2019 Vít Novotný"},
     license   = "LPPL 1.3"
 }
 
@@ -569,9 +606,9 @@ modules['markdown'] = metadata
 %
 % The \TeX{} implementation of the package draws inspiration from several
 % sources including the source code of \Hologo{LaTeX2e}, the \pkg{minted}
-% package by Geoffrey M. Poore -- which likewise tackles the issue of
+% package by Geoffrey M. Poore, which likewise tackles the issue of
 % interfacing with an external interpreter from \TeX{}, the \pkg{filecontents}
-% package by Scott Pakin, and others.
+% package by Scott Pakin and others.
 %
 % \end{markdown}
 % \iffalse
@@ -581,19 +618,19 @@ modules['markdown'] = metadata
 Requirements
 ------------
 
-The package requires a working TeX distribution. [TeX Live][] ≥ 2013 is known to
-work and so are recent installation of [MikTeX][]. If you are using a minimal
-installation of a TeX distribution, please consult the
+The package requires a working \TeX{} distribution. [\TeX{} Live][tl] ≥ 2013 is
+known to work and so are recent installation of [Mik\TeX{}][mik]. If you are
+using a minimal installation of a \TeX{} distribution, please consult the
 [technical documentation][techdoc] for a detailed list of required packages.
 
- [TeX Live]: https://www.tug.org/texlive/ (TeX Live - TeX Users Group)
- [MikTeX]: https://miktex.org/ (Home - MiKTeXorg)
+ [tl]: https://www.tug.org/texlive/ (TeX Live - TeX Users Group)
+ [mik]: https://miktex.org/ (Home - MiKTeXorg)
 
 Installation
 ------------
 
-The package comes pre-installed with [TeX Live][] ≥ 2016 and with recent
-installations of [MikTeX][]. Unless you explicitly wish to use the latest
+The package comes pre-installed with [\TeX{} Live][tl] ≥ 2016 and with recent
+installations of [MikTeX][mik]. Unless you explicitly wish to use the latest
 version of the package, you are encouraged to skip this step.
 
 To install the package, first download the package from the repository
@@ -602,7 +639,7 @@ using Git:
 git clone https://github.com/witiko/markdown
 ``````
 Next, enter the directory named `markdown` and interpret the file named
-`markdown.ins` file using a Unicode-aware TeX engine, such as XeTeX or
+`markdown.ins` file using a Unicode-aware \TeX{} engine, such as XeTeX or
 LuaTeX:
 ``` sh
 cd markdown
@@ -610,16 +647,17 @@ luatex markdown.ins
 ``````
 This should produce the following files:
 
- * `markdown.lua` – the Lua module,
- * `markdown-cli.lua` – the Lua command-line interface,
- * `markdown.tex` – the plain TeX macro package,
- * `markdown.sty` – the LaTeX package, and
- * `t-markdown.tex` – the ConTeXt module.
+ * `markdown.lua`, the Lua module,
+ * `markdown-cli.lua`, the Lua command-line interface,
+ * `markdown.tex`, the plain \TeX{} macro package,
+ * `markdown.sty`, the \LaTeX{} package, and
+ * `t-markdown.tex`, the \Hologo{ConTeXt} module.
 
-### Local installation
+### Local Installation
 
-To perform a local installation, place the above files into your TeX directory
-structure. This is generally where the individual files should be placed:
+To perform a local installation, place the above files into your \TeX{}
+directory structure. This is generally where the individual files should be
+placed:
 
  * `<TEXMF>/tex/luatex/markdown/markdown.lua`
  * `<TEXMF>/scripts/markdown/markdown-cli.lua`
@@ -627,16 +665,16 @@ structure. This is generally where the individual files should be placed:
  * `<TEXMF>/tex/latex/markdown/markdown.sty`
  * `<TEXMF>/tex/context/third/markdown/t-markdown.tex`
 
-where `<TEXMF>` corresponds to a root of your TeX distribution, such as
+where `<TEXMF>` corresponds to a root of your \TeX{} distribution, such as
 `/usr/share/texmf` and `~/texmf` on UN\*X systems or
-`C:\Users\<YOUR␣USERNAME>\texmf` on Windows systems. When in doubt,
-consult the manual of your TeX distribution.
+`C:\Users\`\meta{Your username}`\texmf` on Windows systems. When in doubt,
+consult the manual of your \TeX{} distribution.
 
-### Portable installation ###
+### Portable Installation
 
 Alternatively, you can also store the above files in the same folder as your
-TeX document and distribute them together. This way your document can be
-portably typeset on legacy TeX distributions.
+\TeX{} document and distribute them together. This way your document can be
+portably typeset on legacy \TeX{} distributions.
 
 %</manual>
 %<*lua>
@@ -845,6 +883,17 @@ local md5 = require("md5")
 %  \begin{macrocode}
 \RequirePackage{csvsimple}
 %    \end{macrocode}
+% \par
+% \begin{markdown}
+%
+% \pkg{gobble}
+%
+%:    A package that provides the \m{\@gobblethree} \TeX{} command.
+%
+% \end{markdown}
+%  \begin{macrocode}
+\RequirePackage{gobble}
+%    \end{macrocode}
 % \iffalse
 %</latex>
 %<*context>
@@ -852,7 +901,7 @@ local md5 = require("md5")
 % \par
 % \begin{markdown}
 %
-%### \Hologo{ConTeXt} prerequisites
+%### \Hologo{ConTeXt} Prerequisites
 % The \Hologo{ConTeXt} part of the package requires that either the Mark II or
 % the Mark IV format is loaded, all the plain \TeX{} prerequisites (see
 % Section \ref{sec:texprerequisites}), and the following \Hologo{ConTeXt}
@@ -881,11 +930,11 @@ local md5 = require("md5")
 %</context>
 %<*manual>
 
-First document
+First Document
 --------------
 
 In this section, we will take the necessary steps to typeset our first markdown
-document in TeX. This will serve as our first hands-on experience with the
+document in \TeX{}. This will serve as our first hands-on experience with the
 package and also as a reassurance that the package has been correctly installed.
 
 ### Using Lua
@@ -898,7 +947,7 @@ following content:
 \bye
 ```````
 
-#### Using the Lua module
+#### Using the Lua Module
 
 Using a text editor, create a text document named `hello.lua` with the
 following content:
@@ -922,7 +971,7 @@ texlua hello.lua > hello.tex
 pdftex document.tex
 ``````
 
-#### Using the Lua CLI
+#### Using the Lua Command-Line Interface
 
 Using a text editor, create a text document named `hello.md` with the
 following content:
@@ -931,12 +980,12 @@ Hello *world*!
 ``````
 Next, invoke LuaTeX from the terminal:
 ``` sh
-texlua <CLI␣PATHNAME> -- hello.md hello.tex
+texlua ⟨CLI pathname⟩ -- hello.md hello.tex
 luatex document.tex
 ``````
-where `<CLI␣PATHNAME>` corresponds to the location of the Lua CLI script file,
+where \meta{CLI pathname} corresponds to the location of the Lua CLI script file,
 such as `~/texmf/scripts/markdown/markdown-cli.lua` on UN\*X systems or
-`C:\Users\<YOUR␣USERNAME>\texmf\scripts\markdown\markdown-cli.lua` on Windows
+`C:\Users\`\meta{Your username}`\texmf\scripts\markdown\markdown-cli.lua` on Windows
 systems. Use the command `kpsewhich markdown-cli.lua` to locate the Lua CLI
 script file using [Kpathsea][].
 
@@ -945,11 +994,11 @@ script file using [Kpathsea][].
 A PDF document named `document.pdf` should be produced and contain the text “Hello
 *world*!” Invoking pdfTeX should have the same effect:
 ``` sh
-texlua <CLI␣PATHNAME> -- hello.md hello.tex
+texlua ⟨CLI pathname⟩ -- hello.md hello.tex
 pdftex document.tex
 ``````
 
-### Using plain TeX
+### Using Plain \TeX{}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -970,7 +1019,7 @@ A PDF document named `document.pdf` should be produced and contain the text
 pdftex --shell-escape document.tex
 ```````
 
-### Using LaTeX
+### Using \LaTeX{}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -1010,7 +1059,7 @@ lualatex latex.tex
 ``````
 to see the effect of your changes.
 
-### Using ConTeXt
+### Using \Hologo{ConTeXt}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -1052,7 +1101,16 @@ to see the effect of your changes.
 Examples
 ========
 
-This section will show how to use the package by example.
+In this section, I will describe the individual parts of the Markdown package.
+Each part will be shown by example, leaving the implementation details to the
+[technical documentation][techdoc].
+
+ [techdoc]: http://mirrors.ctan.org/macros/generic/markdown/markdown.pdf
+            (A Markdown Interpreter for \TeX{})
+
+/markdown-interfaces.md
+/markdown-options.md
+/markdown-tokens.md
 
 %</manual>
 %<*lua>
@@ -1066,19 +1124,28 @@ This section will show how to use the package by example.
 %
 % \iffalse
 %</lua>
-%<*manual>
+%<*manual-interfaces>
 
-Lua
----
+Interfaces
+----------
 
-The Lua part of the package makes it possible to convert a markdown document
-into TeX commands and typeset it later when convenient. Although the typical
-user will not find this terribly useful and will instead use the plain TeX,
-LaTeX, and ConTeXt macro packages to convert and typeset the markdown documents
-in a single step, they will still benefit from learning the options that
-control the behavior of the Lua parser.
+In this section, I will describe the individual interfaces exposed by the
+Markdown package starting with the low-level Lua interfaces and all the way up
+to the \LaTeX{} and \Hologo{ConTeXt} interfaces intended for the ordinary
+user.
 
-%</manual>
+### Lua
+
+The Lua programming language is what drives the conversion from markdown to
+\TeX{} in the Markdown package. Based on the [Lunamark][] Lua library by John
+MacFarlane, the Lua implementation is largely independent on \TeX{}, and can be
+used separately from typesetting a document. Lua provides two interfaces: a Lua
+module and a command-line interface (CLI).
+
+ [Lunamark]: https://github.com/jgm/lunamark
+             (Lua library for conversion between markup formats)
+
+%</manual-interfaces>
 %<*lua>
 % \fi
 %
@@ -1117,20 +1184,19 @@ local M = {metadata = metadata}
 % \end{markdown}
 % \iffalse
 %</lua>
-%<*manual>
+%<*manual-interfaces>
 
-### Interfaces
+#### Lua Module
 
-The Lua part of the package exposes two interfaces – the `markdown` Lua module,
-and the Lua command-line interface (CLI).
+A Lua module is a software library that can be used from in other programs.
+The `markdown` Lua module makes it possible to convert markdown to \TeX{} from
+within Lua\TeX{} documents and Lua scripts.
 
-#### The Lua module
-
-The `markdown` Lua module exposes the `new(options)` method, which creates a
-converter function from markdown to TeX. The properties of the converter
-function are specified by the Lua table `options`. The parameter is optional;
-when unspecified, the behaviour will be the same as if `options` were an empty
-table.
+The `markdown` Lua module exposes the `new(`\meta{options}`)` method, which
+creates a converter function from markdown to \TeX{}. The properties of the
+converter function are specified by the Lua table `options`. The parameter is
+optional; when unspecified, the behaviour will be the same as if \meta{options}
+were an empty table.
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -1147,19 +1213,31 @@ following content:
 local kpse = require("kpse")
 kpse.set_program_name("luatex")
 local markdown = require("markdown")
-local convert_safe = markdown.new()
-local convert_unsafe = markdown.new({hybrid = true})
-local input = [[$\sqrt{-1}$ *equals* $i$.]]
-print(convert_safe(input) .. " " .. convert_unsafe(input))
+local input, convert_safe, convert_unsafe, paragraph
+
+input = [[$\sqrt{-1}$ *equals* $i$.]]
+convert_safe = markdown.new()
+convert_unsafe = markdown.new({hybrid = true})
+paragraph = [[\par]]
+
+print(
+  convert_safe(input) .. paragraph ..
+  convert_unsafe(input)
+)
 ```````
 Next, invoke LuaTeX from the terminal:
 ``` sh
 texlua example.lua > example.tex
 luatex document.tex
 ``````
-A PDF document named `document.pdf` should be produced and contain the text
-“\$\\sqrt{-1}\$ *equals* \$i\$. √-̅1̅ *equals* $i$.” Invoking pdfTeX should have
-the same effect:
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> \$\\sqrt{-1}\$ *equals* \$i\$.
+> 
+> √-̅1̅ *equals* $i$.
+
+Invoking pdfTeX should have the same effect:
 ``` sh
 texlua example.lua > example.tex
 pdftex document.tex
@@ -1175,31 +1253,52 @@ named `document.tex` with the following content:
 \input lmfonts
 \directlua{
   local markdown = require("markdown")
-  local convert_safe = markdown.new()
-  local convert_unsafe = markdown.new({hybrid = true})
-  local input = [[$\noexpand\sqrt{-1}$ *equals* $i$.]]
-  tex.sprint(convert_safe(input) .. " " .. convert_unsafe(input)) }
+  local input, convert_safe, convert_unsafe, paragraph
+
+  input = [[$\string\sqrt{-1}$ *equals* $i$.]]
+  convert_safe = markdown.new()
+  convert_unsafe = markdown.new({hybrid = true})
+  paragraph = [[\par]]
+
+  tex.sprint(
+    convert_safe(input) .. paragraph ..
+    convert_unsafe(input)
+  )
+}
 \bye
 ```````
 Next, invoke LuaTeX from the terminal:
 ``` sh
 luatex document.tex
 ```````
-A PDF document named `document.pdf` should be produced and contain the text
-“\$\\sqrt {-1}\$ *equals* \$i\$. √-̅1̅ *equals* $i$.” In this case, we cannot
-use pdfTeX, because pdfTeX does not define the `\directlua` TeX command.
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> \$\\sqrt{-1}\$ *equals* \$i\$.
+> 
+> √-̅1̅ *equals* $i$.
+
+In this case, we cannot use pdfTeX, because pdfTeX does not define the
+`\directlua` \TeX{} command.
+
+#### Lua Command-Line Interface
 
-#### The Lua CLI
+The Lua command-line interface (CLI) of the Markdown package makes the
+functionality of the Lua module accessible from the command line.  This makes
+it possible to convert documents from markdown to \TeX{} manually without any
+knowledge of the Lua programming language.
 
-The Lua command-line interface (CLI) accepts the same options as the `markdown`
-Lua module, but now the options are specified as command-line parameters.
+The Lua command-line interface accepts the same options as the `markdown` Lua
+module, but now the options are specified as command-line parameters.
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
 ``` tex
 \input markdown
 \input lmfonts
-\input safe\ \input unsafe
+\input safe
+
+\input unsafe
 \bye
 ```````
 Using a text editor, create a text document named `example.md` with the
@@ -1209,26 +1308,31 @@ $\sqrt{-1}$ *equals* $i$.
 ``````
 Next, invoke LuaTeX from the terminal:
 ``` sh
-texlua <CLI␣PATHNAME> -- example.md safe.tex
-texlua <CLI␣PATHNAME> hybrid=true -- example.md unsafe.tex
+texlua ⟨CLI pathname⟩ -- example.md safe.tex
+texlua ⟨CLI pathname⟩ hybrid=true -- example.md unsafe.tex
 luatex document.tex
 ``````
-where `<CLI␣PATHNAME>` corresponds to the location of the Lua CLI script file,
+where \meta{CLI pathname} corresponds to the location of the Lua CLI script file,
 such as `~/texmf/scripts/markdown/markdown-cli.lua` on UN\*X systems or
-`C:\Users\<YOUR␣USERNAME>\texmf\scripts\markdown\markdown-cli.lua` on Windows
+`C:\Users\`\meta{Your username}`\texmf\scripts\markdown\markdown-cli.lua` on Windows
 systems. Use the command `kpsewhich markdown-cli.lua` to locate the Lua CLI
 script file using [Kpathsea][].
 
-A PDF document named `document.pdf` should be produced and contain the text
-“\$\\sqrt{-1}\$ *equals* \$i\$. √-̅1̅ *equals* $i$.” Invoking pdfTeX should have
-the same effect:
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> \$\\sqrt{-1}\$ *equals* \$i\$.
+> 
+> √-̅1̅ *equals* $i$.
+
+Invoking pdfTeX should have the same effect:
 ``` sh
-texlua <CLI␣PATHNAME> -- example.md safe.tex
-texlua <CLI␣PATHNAME> hybrid=true -- example.md unsafe.tex
+texlua ⟨CLI pathname⟩ -- example.md safe.tex
+texlua ⟨CLI pathname⟩ hybrid=true -- example.md unsafe.tex
 pdftex document.tex
 ``````
 
-%</manual>
+%</manual-interfaces>
 %<*lua>
 % \fi
 % \begin{markdown}
@@ -1241,15 +1345,14 @@ pdftex document.tex
 % \end{markdown}
 % \iffalse
 %</lua>
-%<*manual>
+%<*manual-options>
 
-### Options
+## Options
 
-This section will cover the options recognized by the Lua interface. The
-interfaces of the plain TeX, LaTeX, and ConTeXt macro packages recognize these
-options as well, in addition to their own options.
+In this section, I will describe all the options recognized by the Markdown
+package.
 
-%</manual>
+%</manual-options>
 %<*lua,lua-cli>
 % \fi
 %  \begin{macrocode}
@@ -1279,17 +1382,24 @@ local defaultOptions = {}
 % \par
 % \iffalse
 %</lua,lua-cli>
-%<*manual>
-% \fi
-% \begin{markdown}
+%<*manual-options>
 
-#### File and Directory Names
+### Lua
 
+Lua options control the conversion from markdown to \TeX{}. They are supported
+by all interfaces of the Markdown package starting with the low-level Lua
+interfaces and all the way up to the \LaTeX{} and \Hologo{ConTeXt} interfaces.
+
+% \fi
+% \begin{markdown}
+% 
+%### File and Directory Names
+% 
 % \end{markdown}
 % \par
 % \iffalse
 
-##### Option `cacheDir`
+#### Option `cacheDir`
 
 `cacheDir` (default value: `"."`)
 
@@ -1300,8 +1410,8 @@ local defaultOptions = {}
 %
 :    A path to the directory containing auxiliary cache files. If the last
      segment of the path does not exist, it will be created by the Lua
-     command-line and plain TeX implementations. The Lua implementation expects
-     that the entire path already exists.
+     command-line and plain \TeX{} implementations. The Lua implementation
+     expects that the entire path already exists.
 
      When iteratively writing and typesetting a markdown document, the cache
      files are going to accumulate over time. You are advised to clean the
@@ -1311,7 +1421,7 @@ local defaultOptions = {}
 % \end{markdown}
 % \iffalse
 
-###### Lua module example {.unnumbered}
+##### Lua Module Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -1333,7 +1443,7 @@ A PDF document named `document.pdf` should be produced and contain the text
 “Hello *world*!” Several cache files of the Markdown package will also be
 produced in the `cache` directory as we requested using the `cacheDir` option.
 
-###### Lua CLI example {.unnumbered}
+##### Lua CLI Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -1349,12 +1459,12 @@ Hello *world*!
 ``````
 Next, invoke LuaTeX from the terminal:
 ``` sh
-texlua <CLI␣PATHNAME> cacheDir=cache -- hello.md hello.tex
+texlua ⟨CLI pathname⟩ cacheDir=cache -- hello.md hello.tex
 luatex document.tex
 ```````
-where `<CLI␣PATHNAME>` corresponds to the location of the Lua CLI script file,
+where \meta{CLI pathname} corresponds to the location of the Lua CLI script file,
 such as `~/texmf/scripts/markdown/markdown-cli.lua` on UN\*X systems or
-`C:\Users\<YOUR␣USERNAME>\texmf\scripts\markdown\markdown-cli.lua` on Windows
+`C:\Users\`\meta{Your username}`\texmf\scripts\markdown\markdown-cli.lua` on Windows
 systems. Use the command `kpsewhich markdown-cli.lua` to locate the Lua CLI
 script file using [Kpathsea][].
 
@@ -1363,7 +1473,7 @@ A PDF document named `document.pdf` should be produced and contain the text
 the Markdown package will also be produced as we requested using the `cacheDir`
 option.
 
-###### Plain TeX example {.unnumbered}
+##### Plain \TeX{} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -1384,7 +1494,7 @@ A PDF document named `document.pdf` should be produced and contain the text “H
 Markdown package will also be produced as we requested using the `cacheDir`
 option.
 
-###### LaTeX example {.unnumbered}
+##### \LaTeX{} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -1406,7 +1516,7 @@ A PDF document named `document.pdf` should be produced and contain the text “H
 Markdown package will also be produced as we requested using the `cacheDir`
 option.
 
-###### ConTeXt example {.unnumbered}
+##### \Hologo{ConTeXt} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -1428,7 +1538,7 @@ A PDF document named `document.pdf` should be produced and contain the text “H
 Markdown package will also be produced as we requested using the `cacheDir`
 option.
 
-%</manual>
+%</manual-options>
 %<*lua,lua-cli>
 % \fi
 %  \begin{macrocode}
@@ -1437,17 +1547,17 @@ defaultOptions.cacheDir = "."
 % \par
 % \iffalse
 %</lua,lua-cli>
-%<*manual>
+%<*manual-options>
 % \fi
 % \begin{markdown}
-
-#### Parser Options
-
+% 
+%### Parser Options
+% 
 % \end{markdown}
 % \par
 % \iffalse
 
-##### Option `blankBeforeBlockquote`
+#### Option `blankBeforeBlockquote`
 
 `blankBeforeBlockquote` (default value: `false`)
 
@@ -1467,7 +1577,7 @@ defaultOptions.cacheDir = "."
 % \end{markdown}
 % \iffalse
 
-###### Lua module example {.unnumbered}
+##### Lua Module Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -1503,7 +1613,7 @@ following text:
 >
 > A paragraph > Not a quote.
 
-###### Lua CLI example {.unnumbered}
+##### Lua CLI Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -1522,13 +1632,13 @@ A paragraph.
 ``````
 Next, invoke LuaTeX from the terminal:
 ``` sh
-texlua <CLI␣PATHNAME> -- content.md optionfalse.tex
-texlua <CLI␣PATHNAME> blankBeforeBlockquote=true -- content.md optiontrue.tex
+texlua ⟨CLI pathname⟩ -- content.md optionfalse.tex
+texlua ⟨CLI pathname⟩ blankBeforeBlockquote=true -- content.md optiontrue.tex
 luatex document.tex
 ```````
-where `<CLI␣PATHNAME>` corresponds to the location of the Lua CLI script file,
+where \meta{CLI pathname} corresponds to the location of the Lua CLI script file,
 such as `~/texmf/scripts/markdown/markdown-cli.lua` on UN\*X systems or
-`C:\Users\<YOUR␣USERNAME>\texmf\scripts\markdown\markdown-cli.lua` on Windows
+`C:\Users\`\meta{Your username}`\texmf\scripts\markdown\markdown-cli.lua` on Windows
 systems. Use the command `kpsewhich markdown-cli.lua` to locate the Lua CLI
 script file using [Kpathsea][].
 
@@ -1541,7 +1651,7 @@ following text:
 >
 > A paragraph. > A quote?
 
-###### Plain TeX example {.unnumbered}
+##### Plain \TeX{} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -1574,7 +1684,7 @@ following text:
 >
 > A paragraph > Not a quote.
 
-###### LaTeX example {.unnumbered}
+##### \LaTeX{} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -1608,7 +1718,7 @@ following text:
 >
 > A paragraph > Not a quote.
 
-###### ConTeXt example {.unnumbered}
+##### \Hologo{ConTeXt} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -1642,7 +1752,7 @@ following text:
 >
 > A paragraph > Not a quote.
 
-%</manual>
+%</manual-options>
 %<*lua,lua-cli>
 % \fi
 %  \begin{macrocode}
@@ -1651,9 +1761,9 @@ defaultOptions.blankBeforeBlockquote = false
 % \par
 % \iffalse
 %</lua,lua-cli>
-%<*manual>
+%<*manual-options>
 
-##### Option `blankBeforeCodeFence`
+#### Option `blankBeforeCodeFence`
 
 `blankBeforeCodeFence` (default value: `false`)
 
@@ -1675,7 +1785,7 @@ defaultOptions.blankBeforeBlockquote = false
 % \end{markdown}
 % \iffalse
 
-###### Lua module example {.unnumbered}
+##### Lua Module Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -1718,7 +1828,7 @@ following text:
 >
 > A paragraph. ``` Not a code fence. ```
 
-###### Lua CLI example {.unnumbered}
+##### Lua CLI Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -1739,13 +1849,13 @@ A code fence?
 ```````
 Next, invoke LuaTeX from the terminal:
 ``` sh
-texlua <CLI␣PATHNAME> fencedCode=true -- content.md optionfalse.tex
-texlua <CLI␣PATHNAME> fencedCode=true blankBeforeCodeFence=true  -- content.md optiontrue.tex
+texlua ⟨CLI pathname⟩ fencedCode=true -- content.md optionfalse.tex
+texlua ⟨CLI pathname⟩ fencedCode=true blankBeforeCodeFence=true  -- content.md optiontrue.tex
 luatex document.tex
 ```````
-where `<CLI␣PATHNAME>` corresponds to the location of the Lua CLI script file,
+where \meta{CLI pathname} corresponds to the location of the Lua CLI script file,
 such as `~/texmf/scripts/markdown/markdown-cli.lua` on UN\*X systems or
-`C:\Users\<YOUR␣USERNAME>\texmf\scripts\markdown\markdown-cli.lua` on Windows
+`C:\Users\`\meta{Your username}`\texmf\scripts\markdown\markdown-cli.lua` on Windows
 systems. Use the command `kpsewhich markdown-cli.lua` to locate the Lua CLI
 script file using [Kpathsea][].
 
@@ -1760,7 +1870,7 @@ following text:
 >
 > A paragraph. ``` A code fence? ```
 
-###### Plain TeX example {.unnumbered}
+##### Plain \TeX{} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -1800,7 +1910,7 @@ following text:
 >
 > A paragraph. ``` Not a code fence. ```
 
-###### LaTeX example {.unnumbered}
+##### \LaTeX{} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -1840,7 +1950,7 @@ following text:
 >
 > A paragraph. ``` Not a code fence. ```
 
-###### ConTeXt example {.unnumbered}
+##### \Hologo{ConTeXt} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -1881,7 +1991,7 @@ following text:
 >
 > A paragraph. ``` Not a code fence. ```
 
-%</manual>
+%</manual-options>
 %<*lua,lua-cli>
 % \fi
 %  \begin{macrocode}
@@ -1890,9 +2000,9 @@ defaultOptions.blankBeforeCodeFence = false
 % \par
 % \iffalse
 %</lua,lua-cli>
-%<*manual>
+%<*manual-options>
 
-##### Option `blankBeforeHeading`
+#### Option `blankBeforeHeading`
 
 `blankBeforeHeading` (default value: `false`)
 
@@ -1913,7 +2023,7 @@ defaultOptions.blankBeforeCodeFence = false
 % \end{markdown}
 % \iffalse
 
-###### Lua module example {.unnumbered}
+##### Lua Module Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -1953,7 +2063,7 @@ following text:
 >
 > A paragraph. Not a heading. ==============
 
-###### Lua CLI example {.unnumbered}
+##### Lua CLI Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -1973,13 +2083,13 @@ A heading?
 ``````
 Next, invoke LuaTeX from the terminal:
 ``` sh
-texlua <CLI␣PATHNAME> -- content.md optionfalse.tex
-texlua <CLI␣PATHNAME> blankBeforeHeading=true  -- content.md optiontrue.tex
+texlua ⟨CLI pathname⟩ -- content.md optionfalse.tex
+texlua ⟨CLI pathname⟩ blankBeforeHeading=true  -- content.md optiontrue.tex
 luatex document.tex
 ```````
-where `<CLI␣PATHNAME>` corresponds to the location of the Lua CLI script file,
+where \meta{CLI pathname} corresponds to the location of the Lua CLI script file,
 such as `~/texmf/scripts/markdown/markdown-cli.lua` on UN\*X systems or
-`C:\Users\<YOUR␣USERNAME>\texmf\scripts\markdown\markdown-cli.lua` on Windows
+`C:\Users\`\meta{Your username}`\texmf\scripts\markdown\markdown-cli.lua` on Windows
 systems. Use the command `kpsewhich markdown-cli.lua` to locate the Lua CLI
 script file using [Kpathsea][].
 
@@ -1993,7 +2103,7 @@ following text:
 >
 > A paragraph. A heading? ==========
 
-###### Plain TeX example {.unnumbered}
+##### Plain \TeX{} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -2029,7 +2139,7 @@ following text:
 >
 > A paragraph. Not a heading. ==============
 
-###### LaTeX example {.unnumbered}
+##### \LaTeX{} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -2066,7 +2176,7 @@ following text:
 >
 > A paragraph. Not a heading. ==============
 
-###### ConTeXt example {.unnumbered}
+##### \Hologo{ConTeXt} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -2103,7 +2213,7 @@ following text:
 >
 > A paragraph. Not a heading. ==============
 
-%</manual>
+%</manual-options>
 %<*lua,lua-cli>
 % \fi
 %  \begin{macrocode}
@@ -2112,9 +2222,9 @@ defaultOptions.blankBeforeHeading = false
 % \par
 % \iffalse
 %</lua,lua-cli>
-%<*manual>
+%<*manual-options>
 
-##### Option `breakableBlockquotes`
+#### Option `breakableBlockquotes`
 
 `breakableBlockquotes` (default value: `false`)
 
@@ -2134,7 +2244,7 @@ defaultOptions.blankBeforeHeading = false
 % \end{markdown}
 % \iffalse
 
-###### Lua module example {.unnumbered}
+##### Lua Module Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -2171,7 +2281,7 @@ following text:
 >
 > > Another block quote.
 
-###### Lua CLI example {.unnumbered}
+##### Lua CLI Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -2191,13 +2301,13 @@ following content:
 ``````
 Next, invoke LuaTeX from the terminal:
 ``` sh
-texlua <CLI␣PATHNAME> -- content.md optionfalse.tex
-texlua <CLI␣PATHNAME> breakableBlockquotes=true  -- content.md optiontrue.tex
+texlua ⟨CLI pathname⟩ -- content.md optionfalse.tex
+texlua ⟨CLI pathname⟩ breakableBlockquotes=true  -- content.md optiontrue.tex
 luatex document.tex
 ```````
-where `<CLI␣PATHNAME>` corresponds to the location of the Lua CLI script file,
+where \meta{CLI pathname} corresponds to the location of the Lua CLI script file,
 such as `~/texmf/scripts/markdown/markdown-cli.lua` on UN\*X systems or
-`C:\Users\<YOUR␣USERNAME>\texmf\scripts\markdown\markdown-cli.lua` on Windows
+`C:\Users\`\meta{Your username}`\texmf\scripts\markdown\markdown-cli.lua` on Windows
 systems. Use the command `kpsewhich markdown-cli.lua` to locate the Lua CLI
 script file using [Kpathsea][].
 
@@ -2210,7 +2320,7 @@ following text:
 >
 > > or two block quotes?
 
-###### Plain TeX example {.unnumbered}
+##### Plain \TeX{} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -2245,7 +2355,7 @@ following text:
 >
 > > Another block quote.
 
-###### LaTeX example {.unnumbered}
+##### \LaTeX{} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -2281,7 +2391,7 @@ following text:
 >
 > > Another block quote.
 
-###### ConTeXt example {.unnumbered}
+##### \Hologo{ConTeXt} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -2317,7 +2427,7 @@ following text:
 >
 > > Another block quote.
 
-%</manual>
+%</manual-options>
 %<*lua,lua-cli>
 % \fi
 %  \begin{macrocode}
@@ -2326,9 +2436,9 @@ defaultOptions.breakableBlockquotes = false
 % \par
 % \iffalse
 %</lua,lua-cli>
-%<*manual>
+%<*manual-options>
 
-##### Option `citationNbsps`
+#### Option `citationNbsps`
 
 `citationNbsps` (default value: `true`)
 
@@ -2352,7 +2462,7 @@ defaultOptions.breakableBlockquotes = false
 % \end{markdown}
 % \iffalse
 
-###### LaTeX example {.unnumbered}
+##### \LaTeX{} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.bib` with the
 following content:
@@ -2361,7 +2471,8 @@ following content:
   author    = "Knuth, Donald Ervin",
   title     = "The \TeX book, volume A of Computers and typesetting",
   publisher = "Addison-Wesley",
-  year      = "1984" }
+  year      = "1984"
+}
 ```````
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -2400,7 +2511,7 @@ following text, where the middot (`·`) denotes a non-breakable space:
 > [1] Donald·Ervin Knuth. _The TeXbook, volume A of Computers and typesetting._
 >     Addison-Wesley, 1984.
 
-%</manual>
+%</manual-options>
 %<*lua,lua-cli>
 % \fi
 %  \begin{macrocode}
@@ -2409,9 +2520,9 @@ defaultOptions.citationNbsps = true
 % \par
 % \iffalse
 %</lua,lua-cli>
-%<*manual>
+%<*manual-options>
 
-##### Option `citations`
+#### Option `citations`
 
 `citations` (default value: `false`)
 
@@ -2447,7 +2558,7 @@ defaultOptions.citationNbsps = true
 % \end{markdown}
 % \iffalse
 
-###### LaTeX example {.unnumbered}
+##### \LaTeX{} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.bib` with the
 following content:
@@ -2456,7 +2567,8 @@ following content:
   author    = "Knuth, Donald Ervin",
   title     = "The \TeX book, volume A of Computers and typesetting",
   publisher = "Addison-Wesley",
-  year      = "1984" }
+  year      = "1984"
+}
 ```````
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -2487,10 +2599,10 @@ following text:
 > The TeXbook [1, p.·123 and 130] was written by Knuth [1].
 >
 > ### References
-> [1] Donald Ervin Knuth. _The TeXbook, volume A of Computers and typesetting._
+> [1] Donald Ervin Knuth. _The \TeX{}book, volume A of Computers and typesetting._
 >     Addison-Wesley, 1984.
 
-%</manual>
+%</manual-options>
 %<*lua,lua-cli>
 % \fi
 %  \begin{macrocode}
@@ -2499,9 +2611,9 @@ defaultOptions.citations = false
 % \par
 % \iffalse
 %</lua,lua-cli>
-%<*manual>
+%<*manual-options>
 
-##### Option `codeSpans`
+#### Option `codeSpans`
 
 `codeSpans` (default value: `true`)
 
@@ -2532,7 +2644,7 @@ defaultOptions.citations = false
 % \end{markdown}
 % \iffalse
 
-###### Lua module example {.unnumbered}
+##### Lua Module Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -2567,7 +2679,7 @@ following text:
 >
 > “This is a quote.” “This is another quote.”
 
-###### Lua CLI example {.unnumbered}
+##### Lua CLI Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -2586,13 +2698,13 @@ following content:
 ``````
 Next, invoke LuaTeX from the terminal:
 ``` sh
-texlua <CLI␣PATHNAME> codeSpans=false -- content.md optionfalse.tex
-texlua <CLI␣PATHNAME> -- content.md optiontrue.tex
+texlua ⟨CLI pathname⟩ codeSpans=false -- content.md optionfalse.tex
+texlua ⟨CLI pathname⟩ -- content.md optiontrue.tex
 luatex document.tex
 ```````
-where `<CLI␣PATHNAME>` corresponds to the location of the Lua CLI script file,
+where \meta{CLI pathname} corresponds to the location of the Lua CLI script file,
 such as `~/texmf/scripts/markdown/markdown-cli.lua` on UN\*X systems or
-`C:\Users\<YOUR␣USERNAME>\texmf\scripts\markdown\markdown-cli.lua` on Windows
+`C:\Users\`\meta{Your username}`\texmf\scripts\markdown\markdown-cli.lua` on Windows
 systems. Use the command `kpsewhich markdown-cli.lua` to locate the Lua CLI
 script file using [Kpathsea][].
 
@@ -2603,7 +2715,7 @@ following text:
 >
 > ``Is this a code span?'' ``Or a quote?''
 
-###### Plain TeX example {.unnumbered}
+##### Plain \TeX{} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -2634,7 +2746,7 @@ following text:
 >
 > “This is a quote.” “This is another quote.”
 
-###### LaTeX example {.unnumbered}
+##### \LaTeX{} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -2666,7 +2778,7 @@ following text:
 >
 > “This is a quote.” “This is another quote.”
 
-###### ConTeXt example {.unnumbered}
+##### \Hologo{ConTeXt} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -2698,7 +2810,7 @@ following text:
 >
 > “This is a quote.” “This is another quote.”
 
-%</manual>
+%</manual-options>
 %<*lua,lua-cli>
 % \fi
 %  \begin{macrocode}
@@ -2707,9 +2819,9 @@ defaultOptions.codeSpans = true
 % \par
 % \iffalse
 %</lua,lua-cli>
-%<*manual>
+%<*manual-options>
 
-##### Option `contentBlocks`
+#### Option `contentBlocks`
 
 `contentBlocks` (default value: `false`)
 
@@ -2723,7 +2835,7 @@ defaultOptions.codeSpans = true
      :   Enable the
 %        iA\,Writer content blocks syntax extension~[@sotkov17]:
 %        \iffalse
-         iA Writer content blocks syntax extension:
+         iA\,Writer content blocks syntax extension:
 %        \fi
 
         ``` md
@@ -2738,15 +2850,12 @@ defaultOptions.codeSpans = true
 :    false
 
      :   Disable the
-%        iA\,Writer content blocks syntax extension.
-%        \iffalse
-         iA Writer content blocks syntax extension.
-%        \fi
+         iA\,Writer content blocks syntax extension.
 
 % \end{markdown}
 % \iffalse
 
-###### LaTeX example {.unnumbered}
+##### \LaTeX{} Example {.unnumbered}
 
 Using a text editor, create a text document named `table.csv` with the
 following content:
@@ -2805,7 +2914,7 @@ following text:
 >
 > This is a *transcluded markdown document*.
 
-###### ConTeXt example {.unnumbered}
+##### \Hologo{ConTeXt} Example {.unnumbered}
 
 Using a text editor, create a text document named `table.csv` with the
 following content:
@@ -2865,7 +2974,7 @@ following text:
 >
 > This is a *transcluded markdown document*.
 
-%</manual>
+%</manual-options>
 %<*lua,lua-cli>
 % \fi
 %  \begin{macrocode}
@@ -2874,9 +2983,9 @@ defaultOptions.contentBlocks = false
 % \par
 % \iffalse
 %</lua,lua-cli>
-%<*manual>
+%<*manual-options>
 
-##### Option `contentBlocksLanguageMap`
+#### Option `contentBlocksLanguageMap`
 
 `contentBlocksLanguageMap` (default value: `"markdown-languages.json"`)
 
@@ -2886,13 +2995,13 @@ defaultOptions.contentBlocks = false
 % \Valitem[markdown-languages.json]{contentBlocksLanguageMap}{filename}
 %
 :    The filename of the JSON file that maps filename extensions to
-     programming language names in the iA Writer content blocks.
+     programming language names in the iA\,Writer content blocks.
 %    See Section~\ref{sec:texcontentblockrenderers} for more information.
 
 % \end{markdown}
 % \iffalse
 
-###### LaTeX example {.unnumbered}
+##### \LaTeX{} Example {.unnumbered}
 
 Using a text editor, create a text document named `table.csv` with the
 following content:
@@ -2954,7 +3063,7 @@ following text:
 >
 > This is a *transcluded markdown document*.
 
-###### ConTeXt example {.unnumbered}
+##### \Hologo{ConTeXt} Example {.unnumbered}
 
 Using a text editor, create a text document named `table.csv` with the
 following content:
@@ -3015,7 +3124,7 @@ following text:
 >
 > This is a *transcluded markdown document*.
 
-%</manual>
+%</manual-options>
 %<*lua,lua-cli>
 % \fi
 %  \begin{macrocode}
@@ -3024,9 +3133,9 @@ defaultOptions.contentBlocksLanguageMap = "markdown-languages.json"
 % \par
 % \iffalse
 %</lua,lua-cli>
-%<*manual>
+%<*manual-options>
 
-##### Option `definitionLists`
+#### Option `definitionLists`
 
 `definitionLists` (default value: `false`)
 
@@ -3060,7 +3169,7 @@ defaultOptions.contentBlocksLanguageMap = "markdown-languages.json"
 % \end{markdown}
 % \iffalse
 
-###### LaTeX example {.unnumbered}
+##### \LaTeX{} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -3102,7 +3211,7 @@ following text:
 > 
 >     Third paragraph of definition 2.
 
-###### ConTeXt example {.unnumbered}
+##### \Hologo{ConTeXt} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -3144,7 +3253,7 @@ following text:
 > 
 >     Third paragraph of definition 2.
 
-%</manual>
+%</manual-options>
 %<*lua,lua-cli>
 % \fi
 %  \begin{macrocode}
@@ -3153,9 +3262,9 @@ defaultOptions.definitionLists = false
 % \par
 % \iffalse
 %</lua,lua-cli>
-%<*manual>
+%<*manual-options>
 
-##### Option `fencedCode`
+#### Option `fencedCode`
 
 `fencedCode` (default value: `false`)
 
@@ -3194,11 +3303,11 @@ defaultOptions.definitionLists = false
 % \end{markdown}
 % \iffalse
 
-###### LaTeX example {.unnumbered}
+##### \LaTeX{} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
-``` tex
+```` tex
 \documentclass{article}
 \usepackage{minted}
 \usepackage[fencedCode]{markdown}
@@ -3247,11 +3356,11 @@ following text:
 > </pre>
 > ```
 
-###### ConTeXt example {.unnumbered}
+##### \Hologo{ConTeXt} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
-``` tex
+```` tex
 \usemodule[t][markdown]
 \def\markdownOptionFencedCode{true}
 \definetyping [js]
@@ -3302,7 +3411,7 @@ following text:
 > </pre>
 > ```
 
-%</manual>
+%</manual-options>
 %<*lua,lua-cli>
 % \fi
 %  \begin{macrocode}
@@ -3311,9 +3420,9 @@ defaultOptions.fencedCode = false
 % \par
 % \iffalse
 %</lua,lua-cli>
-%<*manual>
+%<*manual-options>
 
-##### Option `footnotes`
+#### Option `footnotes`
 
 `footnotes` (default value: `false`)
 
@@ -3353,7 +3462,7 @@ defaultOptions.fencedCode = false
 % \end{markdown}
 % \iffalse
 
-###### LaTeX example {.unnumbered}
+##### \LaTeX{} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -3407,7 +3516,7 @@ following text:
 > This paragraph won't be part of the note, because it
 > isn't indented.
 
-###### ConTeXt example {.unnumbered}
+##### \Hologo{ConTeXt} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -3461,7 +3570,7 @@ following text:
 > This paragraph won't be part of the note, because it
 > isn't indented.
 
-%</manual>
+%</manual-options>
 %<*lua,lua-cli>
 % \fi
 %  \begin{macrocode}
@@ -3470,9 +3579,9 @@ defaultOptions.footnotes = false
 % \par
 % \iffalse
 %</lua,lua-cli>
-%<*manual>
+%<*manual-options>
 
-##### Option `hashEnumerators`
+#### Option `hashEnumerators`
 
 `hashEnumerators` (default value: `false`)
 
@@ -3500,7 +3609,7 @@ defaultOptions.footnotes = false
 % \end{markdown}
 % \iffalse
 
-###### LaTeX example {.unnumbered}
+##### \LaTeX{} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -3510,15 +3619,15 @@ following content:
 \begin{document}
 
 \begin{markdown}
-#. Bird
-#. McHale
-#. Parish
+. Bird
+. McHale
+. Parish
 \end{markdown}
 
 \begin{markdown*}{hashEnumerators}
-#. Bird
-#. McHale
-#. Parish
+. Bird
+. McHale
+. Parish
 \end{markdown*}
 
 \end{document}
@@ -3541,7 +3650,7 @@ following text:
 > #. McHale
 > #. Parish
 
-###### ConTeXt example {.unnumbered}
+##### \Hologo{ConTeXt} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -3550,16 +3659,16 @@ following content:
 \starttext
 
 \startmarkdown
-#. Bird
-#. McHale
-#. Parish
+. Bird
+. McHale
+. Parish
 \stopmarkdown
 
 \def\markdownOptionHashEnumerators{true}
 \startmarkdown
-#. Bird
-#. McHale
-#. Parish
+. Bird
+. McHale
+. Parish
 \stopmarkdown
 
 \stoptext
@@ -3582,7 +3691,7 @@ following text:
 > #. McHale
 > #. Parish
 
-%</manual>
+%</manual-options>
 %<*lua,lua-cli>
 % \fi
 %  \begin{macrocode}
@@ -3591,9 +3700,54 @@ defaultOptions.hashEnumerators = false
 % \par
 % \iffalse
 %</lua,lua-cli>
-%<*manual>
+%<*manual-options>
+
+#### Option `headerAttributes` {#header-attributes}
+
+`headerAttributes` (default value: `false`)
+
+% \fi
+% \begin{markdown}
+%
+% \Optitem[false]{headerAttributes}{\opt{true}, \opt{false}}
+%
+:    true
+
+     :   Enable the assignment of HTML attributes to headings:
+
+         ``` md
+         # My first heading {#foo}
+
+         ## My second heading ##    {#bar .baz}
+
+         Yet another heading   {key=value}
+         ===================
+         ``````
+
+         These HTML attributes have currently no effect other than enabling
+%        content slicing, see the \Opt{slice} option.
+%        \iffalse
+         [content slicing](#slice).
+%        \fi
+
+:    false
 
-##### Option `html`
+     :   Disable the assignment of HTML attributes to headings.
+
+% \end{markdown}
+% \iffalse
+%</manual-options>
+%<*lua,lua-cli>
+% \fi
+%  \begin{macrocode}
+defaultOptions.headerAttributes = false
+%    \end{macrocode}
+% \par
+% \iffalse
+%</lua,lua-cli>
+%<*manual-options>
+
+#### Option `html`
 
 `html` (default value: `false`)
 
@@ -3625,7 +3779,7 @@ See [the corresponding issue][issue-38] in the package repository.
              (HTML entities with the `html` Lua option enabled produce a Lua
               parser error)
 
-###### Lua module example {.unnumbered}
+##### Lua Module Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -3668,7 +3822,7 @@ following text:
 >
 > There is support. There is support. There is support.
 
-###### Lua CLI example {.unnumbered}
+##### Lua CLI Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -3692,13 +3846,13 @@ _Is there <? HTML instruction ?> support?_
 ````````
 Next, invoke LuaTeX from the terminal:
 ``` sh
-texlua <CLI␣PATHNAME> -- content.md optionfalse.tex
-texlua <CLI␣PATHNAME> html=true -- content.md optiontrue.tex
+texlua ⟨CLI pathname⟩ -- content.md optionfalse.tex
+texlua ⟨CLI pathname⟩ html=true -- content.md optiontrue.tex
 luatex document.tex
 ```````
-where `<CLI␣PATHNAME>` corresponds to the location of the Lua CLI script file,
+where \meta{CLI pathname} corresponds to the location of the Lua CLI script file,
 such as `~/texmf/scripts/markdown/markdown-cli.lua` on UN\*X systems or
-`C:\Users\<YOUR␣USERNAME>\texmf\scripts\markdown\markdown-cli.lua` on Windows
+`C:\Users\`\meta{Your username}`\texmf\scripts\markdown\markdown-cli.lua` on Windows
 systems. Use the command `kpsewhich markdown-cli.lua` to locate the Lua CLI
 script file using [Kpathsea][].
 
@@ -3712,7 +3866,7 @@ following text:
 >
 > Is there support? Is there support? Is there support?
 
-###### Plain TeX example {.unnumbered}
+##### Plain \TeX{} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -3755,7 +3909,7 @@ following text:
 >
 > There is support. There is support. There is support.
 
-###### LaTeX example {.unnumbered}
+##### \LaTeX{} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -3798,7 +3952,7 @@ following text:
 >
 > There is support. There is support. There is support.
 
-###### ConTeXt example {.unnumbered}
+##### \Hologo{ConTeXt} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -3841,7 +3995,7 @@ following text:
 >
 > There is support. There is support. There is support.
 
-%</manual>
+%</manual-options>
 %<*lua,lua-cli>
 % \fi
 %  \begin{macrocode}
@@ -3850,9 +4004,9 @@ defaultOptions.html = false
 % \par
 % \iffalse
 %</lua,lua-cli>
-%<*manual>
+%<*manual-options>
 
-##### Option `hybrid`
+#### Option `hybrid`
 
 `hybrid` (default value: `true`)
 
@@ -3863,23 +4017,23 @@ defaultOptions.html = false
 %
 :    true
 
-     :  Disable the escaping of special plain TeX characters, which makes it
-        possible to intersperse your markdown markup with TeX code.  The
+     :  Disable the escaping of special plain \TeX{} characters, which makes it
+        possible to intersperse your markdown markup with \TeX{} code.  The
         intended usage is in documents prepared manually by a human author.
-        In such documents, it can often be desirable to mix TeX and markdown
+        In such documents, it can often be desirable to mix \TeX{} and markdown
         markup freely.
 
 :    false
 
-     :  Enable the escaping of special plain TeX characters outside verbatim
-        environments, so that they are not interpretted by TeX.  This is
+     :  Enable the escaping of special plain \TeX{} characters outside verbatim
+        environments, so that they are not interpretted by \TeX{}. This is
         encouraged when typesetting automatically generated content or
         markdown documents that were not prepared with this package in mind.
 
 % \end{markdown}
 % \iffalse
 
-###### Lua module example {.unnumbered}
+##### Lua Module Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -3888,10 +4042,18 @@ following content:
 \input lmfonts
 \directlua{
   local markdown = require("markdown")
-  local convert_safe = markdown.new()
-  local convert_unsafe = markdown.new({hybrid = true})
-  local input = [[$\noexpand\sqrt{-1}$ *equals* $i$.]]
-  tex.sprint(convert_safe(input) .. " " .. convert_unsafe(input)) }
+  local input, convert_safe, convert_unsafe, paragraph
+
+  input = [[$\string\sqrt{-1}$ *equals* $i$.]]
+  convert_safe = markdown.new()
+  convert_unsafe = markdown.new({hybrid = true})
+  paragraph = [[\par]]
+
+  tex.sprint(
+    convert_safe(input) .. paragraph ..
+    convert_unsafe(input)
+  )
+}
 \bye
 ```````
 Then, invoke LuaTeX from the terminal:
@@ -3902,9 +4064,10 @@ A PDF document named `document.pdf` should be produced and contain the
 following text:
 
 > \$\\sqrt {-1}\$ *equals* \$i\$.
+>
 > √-̅1̅ *equals* $i$.
 
-###### Lua CLI example {.unnumbered}
+##### Lua CLI Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -3912,6 +4075,7 @@ following content:
 \input markdown
 \input lmfonts
 \input optionfalse
+
 \input optiontrue
 \bye
 ```````
@@ -3922,13 +4086,13 @@ $\sqrt{-1}$ *equals* $i$.
 ``````
 Next, invoke LuaTeX from the terminal:
 ``` sh
-texlua <CLI␣PATHNAME> -- content.md optionfalse.tex
-texlua <CLI␣PATHNAME> hybrid=true -- content.md optiontrue.tex
+texlua ⟨CLI pathname⟩ -- content.md optionfalse.tex
+texlua ⟨CLI pathname⟩ hybrid=true -- content.md optiontrue.tex
 luatex document.tex
 ```````
-where `<CLI␣PATHNAME>` corresponds to the location of the Lua CLI script file,
+where \meta{CLI pathname} corresponds to the location of the Lua CLI script file,
 such as `~/texmf/scripts/markdown/markdown-cli.lua` on UN\*X systems or
-`C:\Users\<YOUR␣USERNAME>\texmf\scripts\markdown\markdown-cli.lua` on Windows
+`C:\Users\`\meta{Your username}`\texmf\scripts\markdown\markdown-cli.lua` on Windows
 systems. Use the command `kpsewhich markdown-cli.lua` to locate the Lua CLI
 script file using [Kpathsea][].
 
@@ -3936,22 +4100,26 @@ A PDF document named `document.pdf` should be produced and contain the
 following text:
 
 > \$\\sqrt {-1}\$ *equals* \$i\$.
+>
 > √-̅1̅ *equals* $i$.
 
-###### Plain TeX example {.unnumbered}
+##### Plain \TeX{} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
 ``` tex
 \input markdown
 \input lmfonts
+
 \markdownBegin
 $\sqrt{-1}$ *equals* $i$.
 \markdownEnd
+
 \def\markdownOptionHybrid{true}
 \markdownBegin
 $\sqrt{-1}$ *equals* $i$.
 \markdownEnd
+
 \bye
 ```````
 Next, invoke LuaTeX from the terminal:
@@ -3962,9 +4130,10 @@ A PDF document named `document.pdf` should be produced and contain the
 following text:
 
 > \$\\sqrt {-1}\$ *equals* \$i\$.
+>
 > √-̅1̅ *equals* $i$.
 
-###### LaTeX example {.unnumbered}
+##### \LaTeX{} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -3972,12 +4141,15 @@ following content:
 \documentclass{article}
 \usepackage{markdown}
 \begin{document}
+
 \begin{markdown}
 $\sqrt{-1}$ *equals* $i$.
 \end{markdown}
+
 \begin{markdown*}{hybrid}
 $\sqrt{-1}$ *equals* $i$.
 \end{markdown*}
+
 \end{document}
 ```````
 Next, invoke LuaTeX from the terminal:
@@ -3988,22 +4160,26 @@ A PDF document named `document.pdf` should be produced and contain the
 following text:
 
 > \$\\sqrt {-1}\$ *equals* \$i\$.
+>
 > √-̅1̅ *equals* $i$.
 
-###### ConTeXt example {.unnumbered}
+##### \Hologo{ConTeXt} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
 ``` tex
 \usemodule[t][markdown]
 \starttext
+
 \startmarkdown
 $\sqrt{-1}$ *equals* $i$.
 \stopmarkdown
+
 \def\markdownOptionHybrid{true}
 \startmarkdown
 $\sqrt{-1}$ *equals* $i$.
 \stopmarkdown
+
 \stoptext
 ````````
 Next, invoke LuaTeX from the terminal:
@@ -4014,9 +4190,10 @@ A PDF document named `document.pdf` should be produced and contain the
 following text:
 
 > \$\\sqrt {-1}\$ *equals* \$i\$.
+>
 > √-̅1̅ *equals* $i$.
 
-%</manual>
+%</manual-options>
 %<*lua,lua-cli>
 % \fi
 %  \begin{macrocode}
@@ -4025,9 +4202,9 @@ defaultOptions.hybrid = false
 % \par
 % \iffalse
 %</lua,lua-cli>
-%<*manual>
+%<*manual-options>
 
-##### Option `inlineFootnotes`
+#### Option `inlineFootnotes`
 
 `inlineFootnotes` (default value: `false`)
 
@@ -4053,7 +4230,7 @@ defaultOptions.hybrid = false
 % \end{markdown}
 % \iffalse
 
-###### LaTeX example {.unnumbered}
+##### \LaTeX{} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -4079,7 +4256,7 @@ following text:
 > write, since you don't have to pick an identifier and
 > move down to type the note.]
 
-###### ConTeXt example {.unnumbered}
+##### \Hologo{ConTeXt} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -4106,7 +4283,7 @@ following text:
 > write, since you don't have to pick an identifier and
 > move down to type the note.]
 
-%</manual>
+%</manual-options>
 %<*lua,lua-cli>
 % \fi
 %  \begin{macrocode}
@@ -4115,9 +4292,9 @@ defaultOptions.inlineFootnotes = false
 % \par
 % \iffalse
 %</lua,lua-cli>
-%<*manual>
+%<*manual-options>
 
-##### Option `preserveTabs`
+#### Option `preserveTabs`
 
 `preserveTabs` (default value: `false`)
 
@@ -4144,7 +4321,7 @@ issue][issue-38] in the package repository.
              (Tabs are stripped even with the `preserveTabs=true`
               Lua option enabled)
 
-%</manual>
+%</manual-options>
 %<*lua,lua-cli>
 % \fi
 %  \begin{macrocode}
@@ -4153,9 +4330,217 @@ defaultOptions.preserveTabs = false
 % \par
 % \iffalse
 %</lua,lua-cli>
-%<*manual>
+%<*manual-options>
+
+#### Option `slice` {#slice}
 
-##### Option `smartEllipses`
+`slice` (default value: `^ $`)
+
+% \fi
+% \begin{markdown}
+%
+% \Valitem[\textasciicircum{} \$]{slice}{the beginning and the end of a slice}
+%
+:    Two space-separated selectors that specify the slice of a document that
+     will be processed, whereas the remainder of the document will be ignored.
+     The following selectors are recognized:
+
+     - The circumflex (`^`) selects the beginning of a document.
+     - The dollar sign (`$`) selects the end of a document.
+     - `^`\meta{identifier} selects the beginning of a section with the
+%      HTML attribute `#`\meta{identifier} (see the
+%      \Opt{headerAttributes} option).
+       \iffalse
+       [HTML attribute](#header-attributes) `#`\meta{identifier}.
+%      \fi
+     - `$`\meta{identifier} selects the end of a section with the HTML
+       attribute `#`\meta{identifier}.
+     - \meta{identifier} corresponds to `^`\meta{identifier} for the first
+       selector and to `$`\meta{identifier} for the second selector.
+
+     Specifying only a single selector, \meta{identifier}, is equivalent
+     to specifying the two selectors \meta{identifier} \meta{identifier},
+     which is equivalent to `^`\meta{identifier} `$`\meta{identifier}.
+
+% \end{markdown}
+% \iffalse
+
+##### Plain \TeX{} Example {.unnumbered}
+
+Using a text editor, create a text document named `hamlet.md` with the
+following content:
+
+``` md
+# The Tragedy of Hamlet
+Shakespeare's longest play.
+
+## Act III {#act-3}
+Hamlet kills Polonius.
+
+## Act V   {#act-5}
+Hamlet dies.
+
+## Act I   {#act-1}
+Hamlet talks to ghost.
+```
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\input markdown
+\def\markdownOptionHeaderAttributes{true}
+
+\font\normal=cmr10\normal
+\font\big=cmr10 at 12pt
+\def\markdownRendererHeadingTwo#1{{\big #1\par}}
+\font\bigger=cmr10 scaled 1440
+\def\markdownRendererHeadingOne#1{{\bigger #1\par}}
+
+\def\markdownOptionSlice{^ ^act-3}
+\markdownInput{hamlet.md}
+
+\def\markdownOptionSlice{act-1}
+\markdownInput{hamlet.md}
+
+\def\markdownOptionSlice{act-3 act-5}
+\markdownInput{hamlet.md}
+
+\bye
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+luatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> # The Tragedy of Hamlet
+> Shakespeare's longest play.
+>
+> ## Act I
+> Hamlet talks to ghost.
+>
+> ## Act III
+> Hamlet kills Polonius.
+>
+> ## Act V
+> Hamlet dies.
+
+##### \LaTeX{} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\documentclass{article}
+\usepackage[headerAttributes]{markdown}
+\usepackage{filecontents}
+\begin{filecontents*}{hamlet.md}
+# The Tragedy of Hamlet
+Shakespeare's longest play.
+
+## Act III {#act-3}
+Hamlet kills Polonius.
+
+## Act V   {#act-5}
+Hamlet dies.
+
+## Act I   {#act-1}
+Hamlet talks to ghost.
+\end{filecontents*}
+\begin{document}
+\markdownInput[slice=^ ^act-3]{hamlet.md}
+\markdownInput[slice=act-1]{hamlet.md}
+\markdownInput[slice=act-3 act-5]{hamlet.md}
+\end{document}
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+lualatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> # The Tragedy of Hamlet
+> Shakespeare's longest play.
+>
+> ## Act I
+> Hamlet talks to ghost.
+>
+> ## Act III
+> Hamlet kills Polonius.
+>
+> ## Act V
+> Hamlet dies.
+
+##### \Hologo{ConTeXt} Example {.unnumbered}
+
+Using a text editor, create a text document named `hamlet.md` with the
+following content:
+
+``` md
+# The Tragedy of Hamlet
+Shakespeare's longest play.
+
+## Act III {#act-3}
+Hamlet kills Polonius.
+
+## Act V   {#act-5}
+Hamlet dies.
+
+## Act I   {#act-1}
+Hamlet talks to ghost.
+```
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\usemodule[t][markdown]
+\def\markdownOptionHeaderAttributes{true}
+\starttext
+
+\def\markdownOptionSlice{^ ^act-3}
+\markdownInput{hamlet.md}
+
+\def\markdownOptionSlice{act-1}
+\markdownInput{hamlet.md}
+
+\def\markdownOptionSlice{act-3 act-5}
+\markdownInput{hamlet.md}
+
+\stoptext
+````````
+Next, invoke LuaTeX from the terminal:
+``` sh
+context document.tex
+`````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> # The Tragedy of Hamlet
+> Shakespeare's longest play.
+>
+> ## Act I
+> Hamlet talks to ghost.
+>
+> ## Act III
+> Hamlet kills Polonius.
+>
+> ## Act V
+> Hamlet dies.
+
+%</manual-options>
+%<*lua,lua-cli>
+% \fi
+%  \begin{macrocode}
+defaultOptions.slice = "^ $"
+%    \end{macrocode}
+% \par
+% \iffalse
+%</lua,lua-cli>
+%<*manual-options>
+
+
+#### Option `smartEllipses`
 
 `smartEllipses` (default value: `false`)
 
@@ -4167,10 +4552,7 @@ defaultOptions.preserveTabs = false
 :    true
 
      :   Convert any ellipses in the input to the
-%        \m{markdownRendererEllipsis} \TeX{} macro.
-%        \iffalse
-         `\markdownRendererEllipsis` TeX macro.
-%        \fi
+         \m{markdownRendererEllipsis} \TeX{} macro.
 
 :    false
 
@@ -4179,7 +4561,7 @@ defaultOptions.preserveTabs = false
 % \end{markdown}
 % \iffalse
 
-###### Lua module example {.unnumbered}
+##### Lua Module Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -4190,13 +4572,13 @@ following content:
 \directlua{
   local markdown = require("markdown")
   local convert = markdown.new()
-  input = "These are just three regular dots ..."
+  local input = "These are just three regular dots ..."
   tex.sprint(convert(input)) }
 \par
 \directlua{
   local markdown = require("markdown")
   local convert = markdown.new({smartEllipses = true})
-  input = "... and this is a victorian ellipsis."
+  local input = "... and this is a victorian ellipsis."
   tex.sprint(convert(input)) }
 \bye
 ```````
@@ -4211,7 +4593,7 @@ following text:
 >
 > . . . and this is a victorian ellipsis.
 
-###### Lua CLI example {.unnumbered}
+##### Lua CLI Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -4231,13 +4613,13 @@ Are these just three regular dots, a victorian ellipsis, or ... ?
 ``````
 Next, invoke LuaTeX from the terminal:
 ``` sh
-texlua <CLI␣PATHNAME> -- content.md optionfalse.tex
-texlua <CLI␣PATHNAME> smartEllipses=true -- content.md optiontrue.tex
+texlua ⟨CLI pathname⟩ -- content.md optionfalse.tex
+texlua ⟨CLI pathname⟩ smartEllipses=true -- content.md optiontrue.tex
 luatex document.tex
 ```````
-where `<CLI␣PATHNAME>` corresponds to the location of the Lua CLI script file,
+where \meta{CLI pathname} corresponds to the location of the Lua CLI script file,
 such as `~/texmf/scripts/markdown/markdown-cli.lua` on UN\*X systems or
-`C:\Users\<YOUR␣USERNAME>\texmf\scripts\markdown\markdown-cli.lua` on Windows
+`C:\Users\`\meta{Your username}`\texmf\scripts\markdown\markdown-cli.lua` on Windows
 systems. Use the command `kpsewhich markdown-cli.lua` to locate the Lua CLI
 script file using [Kpathsea][].
 
@@ -4248,7 +4630,7 @@ following text:
 >
 > Are these just three regular dots, a victorian ellipsis, or . . . ?
 
-###### Plain TeX example {.unnumbered}
+##### Plain \TeX{} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -4278,7 +4660,7 @@ following text:
 >
 > . . . and this is a victorian ellipsis.
 
-###### LaTeX example {.unnumbered}
+##### \LaTeX{} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -4311,7 +4693,7 @@ following text:
 >
 > . . . and this is a victorian ellipsis.
 
-###### ConTeXt example {.unnumbered}
+##### \Hologo{ConTeXt} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -4342,7 +4724,7 @@ following text:
 >
 > . . . and this is a victorian ellipsis.
 
-%</manual>
+%</manual-options>
 %<*lua,lua-cli>
 % \fi
 %  \begin{macrocode}
@@ -4351,9 +4733,9 @@ defaultOptions.smartEllipses = false
 % \par
 % \iffalse
 %</lua,lua-cli>
-%<*manual>
+%<*manual-options>
 
-##### Option `startNumber`
+#### Option `startNumber`
 
 `startNumber` (default value: `true`)
 
@@ -4366,24 +4748,17 @@ defaultOptions.smartEllipses = false
 
      :   Make the number in the first item of an ordered lists significant. The
          item numbers will be passed to the
-%        \m{markdownRendererOlItemWithNumber} \TeX{} macro.
-%        \iffalse
-         `\markdownRendererOlItemWithNumber` TeX macro.
-%        \fi
+         \m{markdownRendererOlItemWithNumber} \TeX{} macro.
 
 :    false
 
      :   Ignore the numbers in the ordered list items. Each item will only
-         produce a
-%        \m{markdownRendererOlItem} \TeX{} macro.
-%        \iffalse
-         `\markdownRendererOlItem` TeX macro.
-%        \fi
+         produce a \m{markdownRendererOlItem} \TeX{} macro.
 
 % \end{markdown}
 % \iffalse
 
-###### LaTeX example {.unnumbered}
+##### \LaTeX{} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -4430,7 +4805,7 @@ following text:
 > 2. fourth item
 > 3. fifth item
 
-###### ConTeXt example {.unnumbered}
+##### \Hologo{ConTeXt} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -4475,7 +4850,7 @@ following text:
 > 2. fourth item
 > 3. fifth item
 
-%</manual>
+%</manual-options>
 %<*lua,lua-cli>
 % \fi
 %  \begin{macrocode}
@@ -4484,9 +4859,9 @@ defaultOptions.startNumber = true
 % \par
 % \iffalse
 %</lua,lua-cli>
-%<*manual>
+%<*manual-options>
 
-##### Option `tightLists`
+#### Option `tightLists`
 
 `tightLists` (default value: `true`)
 
@@ -4499,16 +4874,10 @@ defaultOptions.startNumber = true
 
      :   Lists whose bullets do not consist of multiple paragraphs will be
          passed to the
-%        \m{markdownRendererOlBeginTight}, \m{markdownRendererOlEndTight},
-%        \m{markdownRendererUlBeginTight}, \m{markdownRendererUlEndTight},
-%        \m{markdownRendererDlBeginTight}, and
-%        \m{markdownRendererDlEndTight} \TeX{} macros.
-%        \iffalse
-         `\markdownRendererOlBeginTight`, `\markdownRendererOlEndTight`,
-         `\markdownRendererUlBeginTight`, `\markdownRendererUlEndTight`,
-         `\markdownRendererDlBeginTight`, and
-         `\markdownRendererDlEndTight` TeX macros.
-%        \fi
+         \m{markdownRendererOlBeginTight}, \m{markdownRendererOlEndTight},
+         \m{markdownRendererUlBeginTight}, \m{markdownRendererUlEndTight},
+         \m{markdownRendererDlBeginTight}, and
+         \m{markdownRendererDlEndTight} \TeX{} macros.
 
 :    false
 
@@ -4518,7 +4887,7 @@ defaultOptions.startNumber = true
 % \end{markdown}
 % \iffalse
 
-###### LaTeX example {.unnumbered}
+##### \LaTeX{} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -4582,7 +4951,7 @@ following text:
 >
 >   - third item
 
-%</manual>
+%</manual-options>
 %<*lua,lua-cli>
 % \fi
 %  \begin{macrocode}
@@ -4591,9 +4960,9 @@ defaultOptions.tightLists = true
 % \par
 % \iffalse
 %</lua,lua-cli>
-%<*manual>
+%<*manual-options>
 
-##### Option `underscores`
+#### Option `underscores`
 
 `underscores` (default value: `true`)
 
@@ -4623,7 +4992,7 @@ defaultOptions.tightLists = true
 % \end{markdown}
 % \iffalse
 
-###### Plain TeX example {.unnumbered}
+##### Plain \TeX{} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -4653,7 +5022,7 @@ following text:
 >
 > This is _emphasized text_ and this is a math subscript: *mₙ*.
 
-###### LaTeX example {.unnumbered}
+##### \LaTeX{} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -4683,7 +5052,7 @@ following text:
 >
 > This is _emphasized text_ and this is a math subscript: *mₙ*.
 
-###### ConTeXt example {.unnumbered}
+##### \Hologo{ConTeXt} Example {.unnumbered}
 
 Using a text editor, create a text document named `document.tex` with the
 following content:
@@ -4714,7 +5083,7 @@ following text:
 >
 > This is _emphasized text_ and this is a math subscript: *mₙ*.
 
-%</manual>
+%</manual-options>
 %<*lua,lua-cli>
 % \fi
 %  \begin{macrocode}
@@ -4876,7 +5245,7 @@ end
 % ```````
 %
 % This shows another advantage of using the command-line interface compared to
-% using a higher-level \TeX{} interface -- it is unnecessary to provide shell
+% using a higher-level \TeX{} interface: it is unnecessary to provide shell
 % access for the \TeX{} engine.
 %
 % \end{markdown}
@@ -4893,35 +5262,66 @@ end
 %
 % \iffalse
 %</tex>
-%<*manual>
+%<*manual-interfaces>
+
+### Plain \TeX{}
+
+The plain \TeX{} interface provides \TeX{} commands that typeset markdown
+documents by using the Lua interface behind the scenes. Unlike the Lua
+interface, the plain TeX interface does not provide low-level tools for
+converting markdown to \TeX{}. Instead, its goal is to provide high-level
+typesetting capabilities.
+
+The plain \TeX{} interface accepts the same options as the `markdown` Lua
+module, in addition to its own options, but now the options are specified as
+\TeX{} commands.
 
-Plain TeX
----------
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\input markdown
+\input lmfonts
 
-The plain TeX macro package provides TeX commands for typesetting markdown
-documents that invoke the Lua parser in the background. Beside TeX commands
-that correspond to the Lua options, the macro package also provides commands
-corresponding to additional plain TeX-specific options, and so-called *token
-renderer* commands that define how the individual markdown elements will be
-typeset.
+\markdownBegin
+$\sqrt{-1}$ *equals* $i$.
+\markdownEnd
 
-### Interfaces
+\def\markdownOptionHybrid{true}
+\markdownBegin
+$\sqrt{-1}$ *equals* $i$.
+\markdownEnd
 
-<!-- TODO -->
+\bye
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+luatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
 
-%</manual>
+> \$\\sqrt{-1}\$ *equals* \$i\$.
+> 
+> √-̅1̅ *equals* $i$.
+  
+Invoking pdfTeX should have the same effect:
+``` sh
+pdftex --shell-escape document.tex
+``````
+
+%</manual-interfaces>
 %<*tex>
 % \fi
 %
 % The plain \TeX{} interface provides macros for the typesetting of markdown
 % input from within plain \TeX{}, for setting the Lua interface options (see
 % Section \ref{sec:luaoptions}) used during the conversion from markdown to
-% plain \TeX{}, and for changing the way markdown the tokens are rendered.
+% plain \TeX{} and for changing the way markdown the tokens are rendered.
 %
 % \end{markdown}
 %  \begin{macrocode}
-\def\markdownLastModified{2018/04/08}%
-\def\markdownVersion{2.5.6}%
+\def\markdownLastModified{2019/04/04}%
+\def\markdownVersion{2.7.0}%
 %    \end{macrocode}
 % \par
 % \begin{markdown}
@@ -5021,24 +5421,35 @@ typeset.
 %### Options
 % \label{sec:texoptions}
 %
+% The plain \TeX{} options are represented by \TeX{} commands. Some of them map
+% directly to the options recognized by the Lua interface (see
+% Section~\ref{sec:luaoptions}), while some of them are specific to the plain
+% \TeX{} interface.
+%
+% \end{markdown}
 % \iffalse
 %</tex>
-%<*manual>
+%<*manual-options>
 
-### Options
+### Plain \TeX{}
 
-<!-- TODO -->
+Plain \TeX{} options control the communication between the \TeX{} interface and
+the `markdown` Lua module. They are supported by all higher-level interfaces of
+the Markdown package, i.e. the plain \TeX{}, \LaTeX{} and \Hologo{ConTeXt}
+interfaces.
 
-%</manual>
+% \fi
+% \begin{markdown}
+
+#### File and Directory Names
+
+% \end{markdown}
+% \iffalse
+%</manual-options>
 %<*tex>
 % \fi
+% \begin{markdown}
 %
-% The plain \TeX{} options are represented by \TeX{} macros. Some of them map
-% directly to the options recognized by the Lua interface (see
-% Section~\ref{sec:luaoptions}), while some of them are specific to the plain
-% \TeX{} interface.
-%
-%#### File and Directory names
 % The \mdef{markdownOptionHelperScriptFileName} macro sets the filename of the
 % helper Lua script file that is created during the conversion from markdown to
 % plain \TeX{} in \TeX{} engines without the \m{directlua} primitive. It
@@ -5096,35 +5507,97 @@ typeset.
 % \par
 % \begin{markdown}
 %
-% The \mdef{markdownOptionCacheDir} macro corresponds to the Lua interface
-% \Opt{cacheDir} option that sets the path to the directory that will contain
-% the produced cache files. The option defaults to `_markdown_`\m{jobname},
-% which is a similar naming scheme to the one used by the \pkg{minted} \LaTeX{}
-% package. The same limitations apply here as in the case of the
+% The \mdef{markdownOptionOutputDir} macro sets the path to the directory that
+% will contain the cache files produced by the Lua implementation and also the
+% auxiliary files produced by the plain \TeX{} implementation. The option
+% defaults to `.`.
+%
+% The path must be set to the same value as the `-output-directory` option of
+% your \TeX{} engine for the package to function correctly. We need this macro
+% to make the Lua implementation aware where it should store the helper files.
+% The same limitations apply here as in the case of the
 % \m{markdownOptionHelperScriptFileName} macro.
 %
 % \end{markdown}
 %  \begin{macrocode}
-\def\markdownOptionCacheDir{\markdownOptionOutputDir/_markdown_\jobname}%
+\def\markdownOptionOutputDir{.}%
 %    \end{macrocode}
 % \par
 % \begin{markdown}
 %
-% The \mdef{markdownOptionOutputDir} macro sets the path to the directory that
-% will contain the cache files produced by the Lua implementation and also the
-% auxiliary files produced by the plain TeX implementation. The option defaults
-% to `.`.
-%
-% The path must be set to the same value as the `-output-directory` option of
-% your TeX engine for the package to function correctly. We need this macro to
-% make the Lua implementation aware where it should store the helper files.
-% The same limitations apply here as in the case of the
+% The \mdef{markdownOptionCacheDir} macro corresponds to the Lua interface
+% \Opt{cacheDir} option that sets the path to the directory that will contain
+% the produced cache files. The option defaults to `_markdown_`\m{jobname},
+% which is a similar naming scheme to the one used by the \pkg{minted} \LaTeX{}
+% package. The same limitations apply here as in the case of the
 % \m{markdownOptionHelperScriptFileName} macro.
 %
 % \end{markdown}
 %  \begin{macrocode}
-\def\markdownOptionOutputDir{.}%
+\def\markdownOptionCacheDir{\markdownOptionOutputDir/_markdown_\jobname}%
 %    \end{macrocode}
+%
+% \iffalse
+%</tex>
+%<*manual-options>
+
+The plain \TeX{} interface provides the following commands that you can use to
+specify the location of temporary files produced during the conversion from
+Markdown to \TeX{}:
+
+- `\markdownOptionHelperScriptFileName`,
+- `\markdownOptionInputTempFileName`,
+- `\markdownOptionOutputTempFileName`,
+- `\markdownOptionErrorTempFileName`,
+- `\markdownOptionOutputDir`, and
+- `\markdownOptionCacheDir`.
+
+Using a text editor, create a folder named `output-directory` and a text
+document named `document.tex` with the following content:
+``` tex
+\input lmfonts
+\input markdown
+\def\markdownOptionHelperScriptFileName{helper-script.lua}
+\def\markdownOptionInputTempFileName{temporary-input.md}
+\def\markdownOptionOutputTempFileName{temporary-output.tex}
+\def\markdownOptionErrorTempFileName{error-output.txt}
+\def\markdownOptionOutputDir{output-directory}
+\def\markdownOptionCacheDir{output-directory/cache-directory}
+\markdownBegin
+Hello *world*!
+\markdownEnd
+\bye
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+luatex --output-directory output-directory document.tex
+``````
+A text document named `temporary-input.md` should be produced in the folder
+named `output-directory` and contain the following text:
+
+> Hello \*world\*!
+
+A folder named `output-directory/cache-directory` should also be produced and
+contain fragments of the converted markdown document. LuaTeX does not need
+other temporary files to perform the conversion from markdown to \TeX{}. To
+produce the remaining temporary files, invoke pdfTeX from the terminal:
+``` sh
+pdftex --output-directory output-directory --shell-escape document.tex
+``````
+Text documents named `helper-script.lua`, and `temporary-output.md` should be
+produced in the folder named `output-directory`.  The document named
+`helper-script.lua` will contain Lua code that was executed to convert markdown
+to plain \TeX{}.  The document named `temporary-output.tex` will contain the
+input markdown document converted to \TeX{}.
+
+No document named `error-output.txt` should be produced in the folder named
+`output-directory`. This document would only be produced if an error had occured
+while executing the Lua code. If this happens, please [file a
+bug](https://github.com/witiko/markdown/issues).
+
+%</manual-options>
+%<*tex>
+% \fi
 % \par
 % \begin{markdown}
 %
@@ -5152,24 +5625,68 @@ typeset.
 \let\markdownOptionFootnotes\undefined
 \let\markdownOptionFencedCode\undefined
 \let\markdownOptionHashEnumerators\undefined
+\let\markdownOptionHeaderAttributes\undefined
 \let\markdownOptionHtml\undefined
 \let\markdownOptionHybrid\undefined
 \let\markdownOptionInlineFootnotes\undefined
 \let\markdownOptionPreserveTabs\undefined
+\let\markdownOptionSlice\undefined
 \let\markdownOptionSmartEllipses\undefined
 \let\markdownOptionStartNumber\undefined
 \let\markdownOptionTightLists\undefined
 %    \end{macrocode}
 % \par
+% \iffalse
+%</tex>
+%<*manual-options>
+
+#### Package Documentation
+
+The \mdef{markdownOptionStripPercentSigns} macro controls whether a percent
+sign (`%`) at the beginning of a line will be discarded when reading Markdown
+input from a \TeX{} document. This enables the use of markdown when writing
+\TeX{} package documentation using the [Doc \LaTeX{} package][doc] by Frank
+Mittelbach.
+
+ [doc]: https://ctan.org/pkg/doc (doc – Format LaTeX documentation)
+
+Using a text editor, create a text document named `document.dtx` with the
+following content:
+
+ ``` tex
+ % \iffalse
+ \documentclass{ltxdoc}
+ \usepackage[stripPercentSigns]{markdown}
+ \begin{document}
+ \DocInput{document.dtx}
+ \end{document}
+ % \fi
+ %
+ % \begin{markdown}
+ % Hello *world*!
+ % \end{markdown}
+ ```````
+
+Next, invoke LuaTeX from the terminal:
+``` sh
+lualatex document.dtx
+``````
+A PDF document named `document.pdf` should be produced and contain the text
+“Hello *world*!”
+
+%</manual-options>
+%<*tex>
+% \fi
 % \begin{markdown}
 %
-%#### Miscellaneous options
+%#### Miscellaneous Options
+%
 % The \mdef{markdownOptionStripPercentSigns} macro controls whether a percent
 % sign (`%`) at the beginning of a line will be discarded when buffering
 % Markdown input (see Section~\ref{sec:buffering}) or not. Notably, this
 % enables the use of markdown when writing \TeX{} package documentation using
 % the \pkg{Doc} \LaTeX{}~package~[@mittelbach17] or similar. The recognized
-% values of the macro are `true` (discard), and `false` (retain).
+% values of the macro are `true` (discard) and `false` (retain).
 %
 % \end{markdown}
 %  \begin{macrocode}
@@ -5196,22 +5713,32 @@ typeset.
     \csname markdownOption#1\endcsname\relax\relax\relax\relax\relax}
 %    \end{macrocode}
 % \par
-% \begin{markdown}
-%
-%### Token Renderers
-% \label{sec:texrenderersuser}
 %
 % \iffalse
 %</tex>
-%<*manual>
+%<*manual-tokens>
 
-### Token renderers
+## Markdown Tokens
 
-<!-- TODO -->
+A key feature of the Markdown package is the support for manipulating markdown
+tokens, such as headings, emphasized text, links, and lists, in \TeX{}. Instead
+of reducing \TeX{} to a PDF document producer, the Markdown package allows the
+user to specify how every markdown token should be processed and rendered.
 
-%</manual>
-%<*tex>
 % \fi
+% \begin{markdown}
+
+### Token Renderers
+
+% \label{sec:texrenderersuser}
+% \end{markdown}
+% \iffalse
+
+Token renderers are user-defined \TeX{} macros, which render markdown tokens.
+In this section, I will describe the individual token renderers.
+
+% \fi
+% \begin{markdown}
 %
 % The following \TeX{} macros may occur inside the output of the
 % converter functions exposed by the Lua interface (see Section
@@ -5219,62 +5746,550 @@ typeset.
 % macros are intended to be redefined by the user who is typesetting a
 % document. By default, they point to the corresponding prototypes (see Section
 % \ref{sec:texrendererprototypes}).
+
+#### Interblock Separator Renderer
+The \mdef{markdownRendererInterblockSeparator} macro represents a separator
+between two markdown block elements. The macro receives no arguments.
+
+% \end{markdown}
 %
-%#### Interblock Separator Renderer
-% The \mdef{markdownRendererInterblockSeparator} macro represents a separator
-% between two markdown block elements. The macro receives no arguments.
+% \iffalse
+
+##### Plain \TeX{} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\input markdown
+\def\markdownRendererInterblockSeparator{%
+  \par
+  {\it(The end of a block)}%
+  \par
+}
+\markdownBegin
+Hello *world*!
+
+_Foo_ bar!
+\markdownEnd
+\bye
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+luatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> Hello *world*!
+>
+> *(The end of a block)*
+> 
+> _Foo_ bar!
+
+##### \LaTeX{} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\documentclass{article}
+\usepackage{markdown}
+\markdownSetup{
+  renderers = {
+    interblockSeparator = {%
+      \par
+      \emph{(The end of a block)}%
+      \par
+    },
+  },
+}
+\begin{document}
+\begin{markdown}
+Hello *world*!
+
+_Foo_ bar!
+\end{markdown}
+\end{document}
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+lualatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> Hello *world*!
+>
+> *(The end of a block)*
+> 
+> _Foo_ bar!
+
+##### \Hologo{ConTeXt} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\usemodule[t][markdown]
+\def\markdownRendererInterblockSeparator{%
+  \par
+  \emph{(The end of a block)}%
+  \par
+}
+\starttext
+\startmarkdown
+Hello *world*!
+
+_Foo_ bar!
+\stopmarkdown
+\stoptext
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+context document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> Hello *world*!
+>
+> *(The end of a block)*
+> 
+> _Foo_ bar!
+
+%</manual-tokens>
+%<*tex>
+% \fi
 %
-% \end{markdown}
 %  \begin{macrocode}
 \def\markdownRendererInterblockSeparator{%
   \markdownRendererInterblockSeparatorPrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-%#### Line Break Renderer
-% The \mdef{markdownRendererLineBreak} macro represents a forced line break.
-% The macro receives no arguments.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+#### Line Break Renderer
+The \mdef{markdownRendererLineBreak} macro represents a forced line break.
+The macro receives no arguments.
+
 % \end{markdown}
+%
+% \iffalse
+
+##### Plain \TeX{} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\input markdown
+\def\markdownRendererLineBreak{%
+  \par
+  {\it(A forced linebreak)}%
+  \par
+}
+\markdownInput{example.md}
+\bye
+```````
+Using a text editor, create a text document named `example.md` with the
+following content.  Note the two spaces at the end of the first line, which
+specify a hard linebreak.  Due to the limitations of the \TeX{} input
+processor, hard linebreaks would be ignored if we typed them directly into the
+`document.tex` document.
+
+<pre><code>Hello world!  <br/>_Foo_ bar!</code></pre>
+
+Next, invoke LuaTeX from the terminal:
+``` sh
+luatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> Hello *world*!
+>
+> *(A forced linebreak)*
+> 
+> _Foo_ bar!
+
+##### \LaTeX{} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\documentclass{article}
+\usepackage{markdown}
+\markdownSetup{
+  renderers = {
+    lineBreak = {%
+      \par
+      \emph{(A forced linebreak)}%
+      \par
+    },
+  },
+}
+\begin{document}
+\markdownInput{example.md}
+\end{document}
+```````
+Using a text editor, create a text document named `example.md` with the
+following content.  Note the two spaces at the end of the first line, which
+specify a hard linebreak.  Due to the limitations of the \TeX{} input
+processor, hard linebreaks would be ignored if we typed them directly into the
+`document.tex` document.
+
+<pre><code>Hello world!  <br/>_Foo_ bar!</code></pre>
+
+Next, invoke LuaTeX from the terminal:
+``` sh
+lualatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> Hello *world*!
+>
+> *(A forced linebreak)*
+> 
+> _Foo_ bar!
+
+##### \Hologo{ConTeXt} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\usemodule[t][markdown]
+\def\markdownRendererLineBreak{%
+  \par
+  \emph{(A forced linebreak)}%
+  \par
+}
+\starttext
+\markdownInput{example.md}
+\stoptext
+```````
+Using a text editor, create a text document named `example.md` with the
+following content.  Note the two spaces at the end of the first line, which
+specify a hard linebreak.  Due to the limitations of the \TeX{} input
+processor, hard linebreaks would be ignored if we typed them directly into the
+`document.tex` document.
+
+<pre><code>Hello world!  <br/>_Foo_ bar!</code></pre>
+
+Next, invoke LuaTeX from the terminal:
+``` sh
+luatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> Hello *world*!
+>
+> *(A forced linebreak)*
+> 
+> _Foo_ bar!
+
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererLineBreak{%
   \markdownRendererLineBreakPrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-%#### Ellipsis Renderer
-% The \mdef{markdownRendererEllipsis} macro replaces any occurance of ASCII
-% ellipses in the input text. This macro will only be produced, when the
-% \Opt{smartEllipses} option is `true`.  The macro receives no arguments.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+#### Ellipsis Renderer
+ The \mdef{markdownRendererEllipsis} macro replaces any occurance of ASCII
+ ellipses in the input text. This macro will only be produced, when the
+ \Opt{smartEllipses} option is `true`.  The macro receives no arguments.
+
 % \end{markdown}
+%
+% \iffalse
+
+##### Plain \TeX{} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\input markdown
+\def\markdownOptionSmartEllipses{true}
+\def\markdownRendererEllipsis{{\it SHAZAM}!}
+\markdownBegin
+The secret word is ...
+\markdownEnd
+\bye
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+luatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> The secret word is *SHAZAM*!
+
+##### \LaTeX{} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\documentclass{article}
+\usepackage[smartEllipses]{markdown}
+\markdownSetup{
+  renderers = {
+    ellipsis = \emph{SHAZAM}!,
+  },
+}
+\begin{document}
+\begin{markdown}
+The secret word is ...
+\end{markdown}
+\end{document}
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+lualatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> The secret word is *SHAZAM*!
+
+##### \Hologo{ConTeXt} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\usemodule[t][markdown]
+\def\markdownOptionSmartEllipses{true}
+\def\markdownRendererEllipsis{\emph{SHAZAM}!}
+\starttext
+\startmarkdown
+The secret word is ...
+\stopmarkdown
+\stoptext
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+context document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> Hello *world*!
+>
+> *(The end of a block)*
+> 
+> _Foo_ bar!
+
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererEllipsis{%
   \markdownRendererEllipsisPrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-%#### Non-breaking Space Renderer
-% The \mdef{markdownRendererNbsp} macro represents a non-breaking space.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+#### Non-Breaking Space Renderer
+The \mdef{markdownRendererNbsp} macro represents a non-breaking space.
+
 % \end{markdown}
+%
+% \iffalse
+
+##### \LaTeX{} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.bib` with the
+following content:
+``` bib
+@book{knuth:tex,
+  author    = "Knuth, Donald Ervin",
+  title     = "The \TeX book, volume A of Computers and typesetting",
+  publisher = "Addison-Wesley",
+  year      = "1984"
+}
+```````
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\documentclass{article}
+\usepackage[
+  citations,
+  citationNbsps,
+]{markdown}
+\markdownSetup{
+  renderers = {
+    nbsp = {$\cdot$},
+  },
+}
+\begin{document}
+
+\begin{markdown}
+The TeXbook [@knuth:tex, p. 123 and 130] is good.
+\end{markdown}
+
+\bibliographystyle{plain}
+\bibliography{document.bib}
+
+\end{document}
+```````
+Next, invoke LuaTeX and BibTeX from the terminal:
+``` sh
+lualatex document.tex
+bibtex document.aux
+lualatex document.tex
+lualatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> The TeXbook [1, p.·123·and·130] is good.
+>
+> ### References
+> [1] Donald Ervin Knuth. _The TeXbook, volume A of Computers and typesetting._
+>     Addison-Wesley, 1984.
+
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererNbsp{%
   \markdownRendererNbspPrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-%#### Special Character Renderers
-% The following macros replace any special plain \TeX{} characters (including
-% the active pipe character (`|`) of \Hologo{ConTeXt}) in the input text.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
+%
+% \begin{markdown}
+
+#### Special Character Renderers
+The following macros replace any special plain \TeX{} characters, including
+% \iffalse
+the active pipe character (`|`) of \Hologo{ConTeXt}, in the input text:
+
+- \mdef{markdownRendererAmpersand} replaces the ampersand (`&`).
+- \mdef{markdownRendererBackslash} replaces the backslash (`\`).
+- \mdef{markdownRendererCircumflex} replaces the circumflex (`^`).
+- \mdef{markdownRendererDollarSign} replaces the dollar sign (`$`).
+- \mdef{markdownRendererHash} replaces the hash sign (`#`).
+- \mdef{markdownRendererLeftBrace} replaces the left brace (`{`).
+- \mdef{markdownRendererPercentSign} replaces the percent sign (`%`).
+- \mdef{markdownRendererPipe} replaces the pipe character (`|`).
+- \mdef{markdownRendererRightBrace} replaces the right brace (`}`).
+- \mdef{markdownRendererTilde} replaces the tilde (`~`).
+- \mdef{markdownRendererUnderscore} replaces the underscore (`_`).
+
+% \fi
+% the active pipe character (`|`) of \Hologo{ConTeXt}, in the input text.
 % These macros will only be produced, when the \Opt{hybrid} option is
 % `false`.
-%
+
 % \end{markdown}
+%
+% \iffalse
+
+##### Plain \TeX{} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content. We will make the tilde behave as if it were written in
+\TeX{}, where it represents a non-breaking space.
+``` tex
+\input markdown
+\def\markdownRendererTilde{~}
+\markdownBegin
+Bartel~Leendert van~der~Waerden
+\markdownEnd
+\bye
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+luatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text, where the middot (`·`) denotes a non-breakable space:
+
+> Bartel·Leendert van·der·Waerden
+
+##### \LaTeX{} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content. We will make the tilde behave as if it were written in
+\TeX{}, where it represents a non-breaking space.
+``` tex
+\documentclass{article}
+\usepackage{markdown}
+\markdownSetup{
+  renderers = {
+    tilde = ~,
+  },
+}
+\begin{document}
+\begin{markdown}
+Bartel~Leendert van~der~Waerden
+\end{markdown}
+\end{document}
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+lualatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text, where the middot (`·`) denotes a non-breakable space:
+
+> Bartel·Leendert van·der·Waerden
+
+##### \Hologo{ConTeXt} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content. We will make the tilde behave as if it were written in
+\TeX{}, where it represents a non-breaking space.
+``` tex
+\usemodule[t][markdown]
+\def\markdownRendererTilde{~}
+\starttext
+\startmarkdown
+Bartel~Leendert van~der~Waerden
+\stopmarkdown
+\stoptext
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+context document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text, where the middot (`·`) denotes a non-breakable space:
+
+> Bartel·Leendert van·der·Waerden
+
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererLeftBrace{%
   \markdownRendererLeftBracePrototype}%
@@ -5300,570 +6315,3078 @@ typeset.
   \markdownRendererPipePrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-%#### Code Span Renderer
-% The \mdef{markdownRendererCodeSpan} macro represents inlined code span in the
-% input text. It receives a single argument that corresponds to the inlined
-% code span.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+#### Code Span Renderer
+The \mdef{markdownRendererCodeSpan} macro represents inlined code span in the
+input text. It receives a single argument that corresponds to the inlined
+code span.
+
 % \end{markdown}
+%
+% \iffalse
+
+##### Plain \TeX{} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\input markdown
+\input lmfonts
+
+\def\markdownRendererCodeSpan#1{#1}
+
+\markdownBegin
+`$\sqrt{-1}$ *equals* $i$`
+
+$\sqrt{-1}$ *equals* $i$
+\markdownEnd
+
+\def\markdownOptionHybrid{true}
+\markdownBegin
+$\sqrt{-1}$ *equals* $i$
+\markdownEnd
+
+\bye
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+luatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> \$\\sqrt{-1}\$ \*equals\* \$i\$.
+> 
+> \$\\sqrt{-1}\$ *equals* \$i\$.
+> 
+> √-̅1̅ *equals* $i$.
+
+##### \LaTeX{} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\documentclass{article}
+\usepackage[smartEllipses]{markdown}
+\markdownSetup{
+  renderers = {
+    codeSpan = {#1},
+  },
+}
+\begin{document}
+
+\begin{markdown}
+`$\sqrt{-1}$ *equals* $i$`
+
+$\sqrt{-1}$ *equals* $i$
+\end{markdown}
+
+\begin{markdown*}{hybrid}
+$\sqrt{-1}$ *equals* $i$
+\end{markdown*}
+
+\end{document}
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+lualatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> \$\\sqrt{-1}\$ \*equals\* \$i\$.
+> 
+> \$\\sqrt{-1}\$ *equals* \$i\$.
+> 
+> √-̅1̅ *equals* $i$.
+
+##### \Hologo{ConTeXt} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\usemodule[t][markdown]
+\def\markdownRendererCodeSpan#1{#1}
+\starttext
+
+\startmarkdown
+`$\sqrt{-1}$ *equals* $i$`
+
+$\sqrt{-1}$ *equals* $i$
+\stopmarkdown
+
+\def\markdownOptionHybrid{true}
+\startmarkdown
+$\sqrt{-1}$ *equals* $i$
+\stopmarkdown
+
+\bye
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+context document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> \$\\sqrt{-1}\$ \*equals\* \$i\$.
+> 
+> \$\\sqrt{-1}\$ *equals* \$i\$.
+> 
+> √-̅1̅ *equals* $i$.
+
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererCodeSpan{%
   \markdownRendererCodeSpanPrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-%#### Link Renderer
-% The \mdef{markdownRendererLink} macro represents a hyperlink. It receives
-% four arguments: the label, the fully escaped \acro{uri} that can be directly
-% typeset, the raw \acro{uri} that can be used outside typesetting, and the
-% title of the link.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+#### Link Renderer
+The \mdef{markdownRendererLink} macro represents a hyperlink. It receives
+four arguments: the label, the fully escaped \acro{uri} that can be directly
+typeset, the raw \acro{uri} that can be used outside typesetting, and the
+title of the link.
+
 % \end{markdown}
+%
+% \iffalse
+
+##### Plain \TeX{} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\input markdown
+\def\markdownRendererLink#1#2#3#4{%
+  #1 {\tt#2} titled {\it#4}%
+}
+\markdownBegin
+Please visit [the link][ctan].
+
+ [ctan]: https://ctan.org/
+         (the Comprehensive TeX Archive Network)
+\markdownEnd
+\bye
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+luatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> Please visit the link <https://ctan.org/> titled *the Comprehensive TeX
+> Archive Network*.
+
+##### \LaTeX{} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\documentclass{article}
+\usepackage{markdown}
+\markdownSetup{
+  renderers = {
+    link = {%
+      #1 \texttt{#2} titled \emph{#4}%
+    },
+  },
+}
+\begin{document}
+\begin{markdown}
+Please visit [the link][ctan].
+
+ [ctan]: https://ctan.org/
+         (the Comprehensive TeX Archive Network)
+\end{markdown}
+\end{document}
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+lualatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> Please visit the link <https://ctan.org/> titled *the Comprehensive TeX
+> Archive Network*.
+
+##### \Hologo{ConTeXt} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\usemodule[t][markdown]
+\def\markdownRendererLink#1#2#3#4{%
+  #1 {\tt#2} titled \emph{#4}%
+}
+\starttext
+\startmarkdown
+Please visit [the link][ctan].
+
+ [ctan]: https://ctan.org/
+         (the Comprehensive TeX Archive Network)
+\stopmarkdown
+\stoptext
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+context document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> Please visit the link <https://ctan.org/> titled *the Comprehensive TeX
+> Archive Network*.
+
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererLink{%
   \markdownRendererLinkPrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-%#### Image Renderer
-% The \mdef{markdownRendererImage} macro represents an image. It receives
-% four arguments: the label, the fully escaped \acro{uri} that can be directly
-% typeset, the raw \acro{uri} that can be used outside typesetting, and the
-% title of the link.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+#### Image Renderer
+The \mdef{markdownRendererImage} macro represents an image. It receives
+four arguments: the label, the fully escaped \acro{uri} that can be directly
+typeset, the raw \acro{uri} that can be used outside typesetting, and the
+title of the link.
+
 % \end{markdown}
+%
+% \iffalse
+
+##### \LaTeX{} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\documentclass{article}
+\usepackage{markdown}
+\begingroup
+\catcode`\@=11
+\catcode`\%=12
+\catcode`\^^A=14
+\global\def\markdownRendererImage#1#2#3#4{^^A
+  \immediate\write18{^^A
+    if printf '%s' "#3" | grep -q ^http; then
+      OUTPUT="$(printf '%s' "#3" | md5sum | cut -d' ' -f1).^^A
+              $(printf '%s' "#3" | sed 's/.*[.]//')";
+      if ! [ -e "$OUTPUT" ]; then
+        wget -O "$OUTPUT" '#3' || rm "$OUTPUT";
+        convert "$OUTPUT" png:"$OUTPUT";
+      fi;
+      printf '%s%%' "$OUTPUT" > \jobname.fetched;
+    else
+      printf '%s%%' "#3"      > \jobname.fetched;
+    fi^^A
+  }^^A
+  {^^A
+    \everyeof={\noexpand}^^A
+    \edef\filename{\@@input"\jobname.fetched" }^^A
+    \includegraphics[width=\textwidth]{\filename}^^A
+  }^^A
+}
+\endgroup
+\begin{document}
+\begin{markdown}
+![TUGboat](https://tug.org/tugboat/noword.jpg)
+\end{markdown}
+\end{document}
+``````
+Next, invoke LuaTeX from the terminal:
+``` sh
+lualatex --shell-escape document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following content. This assumes that you use a Unix-like operating system with
+Bourne or Bourne again shell as the default shell of the current user. It also
+assumes that the `md5sum`, `wget`, and `convert` binaries are installed and
+that the \TeX{} engine has shell access.
+
+> ![](https://tug.org/tugboat/noword.jpg "The Communications of the TeX Users Group")
+
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererImage{%
   \markdownRendererImagePrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-%#### Content Block Renderers
-% \label{sec:texcontentblockrenderers}
-% The \mdef{markdownRendererContentBlock} macro represents an iA\,Writer content
-% block. It receives four arguments: the local file or online image filename
-% extension cast to the lower case, the fully escaped \acro{uri} that can be
-% directly typeset, the raw \acro{uri} that can be used outside typesetting,
-% and the title of the content block.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+#### Content Block Renderers
+\label{sec:texcontentblockrenderers}
+The \mdef{markdownRendererContentBlock} macro represents an iA\,Writer content
+block. It receives four arguments: the local file or online image filename
+extension cast to the lower case, the fully escaped \acro{uri} that can be
+directly typeset, the raw \acro{uri} that can be used outside typesetting,
+and the title of the content block.
+
 % \end{markdown}
+%
+% \iffalse
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererContentBlock{%
   \markdownRendererContentBlockPrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-% The \mdef{markdownRendererContentBlockOnlineImage} macro represents an
-% iA\,Writer online image content block. The macro receives the same arguments
-% as \m{markdownRendererContentBlock}.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+The \mdef{markdownRendererContentBlockOnlineImage} macro represents an
+iA\,Writer online image content block. The macro receives the same arguments
+as \m{markdownRendererContentBlock}.
+
 % \end{markdown}
+%
+% \iffalse
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererContentBlockOnlineImage{%
   \markdownRendererContentBlockOnlineImagePrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
-%
-% The \mdef{markdownRendererContentBlockCode} macro represents an iA\,Writer
-% content block that was recognized as a file in a known programming language
-% by its filename extension $s$. If any `markdown-languages.json` file found
-% by \pkg{kpathsea}\footnote{Local files take precedence. Filenames other
-% than `markdown-languages.json` may be specified using the
-% `contentBlocksLanguageMap` Lua option.} contains a record $(k, v)$, then a
-% non-online-image content block with the filename extension $s,
-% s$`:lower()`${}=k$ is considered to be in a known programming language $v$.
-% The macro receives five arguments: the local file name extension $s$ cast to
-% the lower case, the language $v$, the fully escaped \acro{uri} that can be
-% directly typeset, the raw \acro{uri} that can be used outside typesetting,
-% and the title of the content block.
 %
-% Note that you will need to place place a `markdown-languages.json` file
-% inside your working directory or inside your local TeX directory structure.
-% In this file, you will define a mapping between filename extensions and the
-% language names recognized by your favorite syntax highlighter; there may
-% exist other creative uses beside syntax highlighting. The `Languages.json`
-% file provided by @sotkov17 is a good starting point.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+The \mdef{markdownRendererContentBlockCode} macro represents an iA\,Writer
+content block that was recognized as a file in a known programming language
+by its filename extension $s$. If any `markdown-languages.json` file found
+by \pkg{kpathsea}\footnote{Local files take precedence. Filenames other
+than `markdown-languages.json` may be specified using the
+`contentBlocksLanguageMap` Lua option.} contains a record $(k, v)$, then a
+non-online-image content block with the filename extension $s,
+s$`:lower()`${}=k$ is considered to be in a known programming language $v$.
+The macro receives five arguments: the local file name extension $s$ cast to
+the lower case, the language $v$, the fully escaped \acro{uri} that can be
+directly typeset, the raw \acro{uri} that can be used outside typesetting,
+and the title of the content block.
+
+Note that you will need to place place a `markdown-languages.json` file
+inside your working directory or inside your local \TeX{} directory
+structure.  In this file, you will define a mapping between filename
+extensions and the language names recognized by your favorite syntax
+highlighter; there may exist other creative uses beside syntax highlighting.
+% The `Languages.json` file provided by @sotkov17 is a good starting point.
 % \end{markdown}
+%
+% \iffalse
+[The `Languages.json` file provided by Anton Sotkov][sotkov17] is a good
+starting point.
+
+ [sotkov17]: https://github.com/iainc/Markdown-Content-Blocks
+             (File transclusion syntax for Markdown)
+
+##### Plain \TeX{} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\input markdown
+\def\markdownOptionContentBlocks{true}
+\def\markdownRendererContentBlock#1#2#3#4{%
+  This is {\tt #2}, #4.
+}
+\def\markdownRendererContentBlockOnlineImage#1#2#3#4{%
+  This is the image {\tt #2}, #4.
+}
+\def\markdownRendererContentBlockCode#1#2#3#4#5{%
+  This is the #2 (\uppercase{#1}) document {\tt #3}, #5.
+}
+\markdownBegin
+/document.tex (the document that we are currently typesetting)
+/markdown-languages.json (the mapping between filename extensions
+                          and programming language names)
+https://tug.org/tugboat/noword.jpg (the logotype of TUGboat)
+\markdownEnd
+\bye
+```````
+Create also a text document named `markdown-languages.json` with the following
+content:
+``` js
+{
+  "json": "JavaScript Object Notation",
+}
+``````
+Next, invoke LuaTeX from the terminal:
+``` sh
+luatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> This is `document.tex`, the document that we are currently typesetting.
+>
+> This is the JavaScript Object Notation (JSON) document
+> `markdown-languages.json`, the mapping between filename extensions and
+> programming language names.
+>
+> This is the image `https://tug.org/tugboat/noword.jpg`, the logotype of
+> TUGboat.
+
+##### \LaTeX{} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\documentclass{article}
+\usepackage{filecontents}
+\begin{filecontents*}{markdown-languages.json}
+{
+  "json": "JavaScript Object Notation",
+}
+\end{filecontents*}
+\usepackage[contentBlocks]{markdown}
+\markdownSetup{
+  renderers = {
+    contentBlock = {This is \texttt{#2}, #4.},
+    contentBlockOnlineImage = {This is the image \texttt{#2}, #4.},
+    contentBlockCode = {%
+      This is the #2 (\MakeUppercase{#1}) document \texttt{#3}, #5.
+    },
+  },
+}
+\begin{document}
+\begin{markdown}
+/document.tex (the document that we are currently typesetting)
+/markdown-languages.json (the mapping between filename extensions
+                          and programming language names)
+https://tug.org/tugboat/noword.jpg (the logotype of TUGboat)
+\end{markdown}
+\end{document}
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+lualatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> This is `document.tex`, the document that we are currently typesetting.
+>
+> This is the JavaScript Object Notation (JSON) document
+> `markdown-languages.json`, the mapping between filename extensions and
+> programming language names.
+>
+> This is the image `https://tug.org/tugboat/noword.jpg`, the logotype of
+> TUGboat.
+
+##### \Hologo{ConTeXt} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\usemodule[t][markdown]
+\def\markdownOptionContentBlocks{true}
+\def\markdownRendererContentBlock#1#2#3#4{%
+  This is {\tt #2}, #4.
+}
+\def\markdownRendererContentBlockOnlineImage#1#2#3#4{%
+  This is the image {\tt #2}, #4.
+}
+\def\markdownRendererContentBlockCode#1#2#3#4#5{%
+  This is the #2 (\uppercase{#1}) document {\tt #3}, #5.
+}
+\starttext
+\startmarkdown
+/document.tex (the document that we are currently typesetting)
+/markdown-languages.json (the mapping between filename extensions
+                          and programming language names)
+https://tug.org/tugboat/noword.jpg (the logotype of TUGboat)
+\stopmarkdown
+\stoptext
+```````
+Create also a text document named `markdown-languages.json` with the following
+content:
+``` js
+{
+  "json": "JavaScript Object Notation",
+}
+``````
+Next, invoke LuaTeX from the terminal:
+``` sh
+context document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> This is `document.tex`, the document that we are currently typesetting.
+>
+> This is the JavaScript Object Notation (JSON) document
+> `markdown-languages.json`, the mapping between filename extensions and
+> programming language names.
+>
+> This is the image `https://tug.org/tugboat/noword.jpg`, the logotype of
+> TUGboat.
+
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererContentBlockCode{%
   \markdownRendererContentBlockCodePrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-%#### Bullet List Renderers
-% The \mdef{markdownRendererUlBegin} macro represents the beginning of a
-% bulleted list that contains an item with several paragraphs of text (the
-% list is not tight). The macro receives no arguments.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+#### Bullet List Renderers
+The \mdef{markdownRendererUlBegin} macro represents the beginning of a
+bulleted list that contains an item with several paragraphs of text (the
+list is not tight). The macro receives no arguments.
+
 % \end{markdown}
+%
+% \iffalse
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererUlBegin{%
   \markdownRendererUlBeginPrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-% The \mdef{markdownRendererUlBeginTight} macro represents the beginning of a
-% bulleted list that contains no item with several paragraphs of text (the list
-% is tight). This macro will only be produced, when the \Opt{tightLists} option
-% is `false`. The macro receives no arguments.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+The \mdef{markdownRendererUlBeginTight} macro represents the beginning of a
+bulleted list that contains no item with several paragraphs of text (the list
+is tight). This macro will only be produced, when the \Opt{tightLists} option
+is `false`. The macro receives no arguments.
+
 % \end{markdown}
+%
+% \iffalse
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererUlBeginTight{%
   \markdownRendererUlBeginTightPrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-% The \mdef{markdownRendererUlItem} macro represents an item in a bulleted
-% list. The macro receives no arguments.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+The \mdef{markdownRendererUlItem} macro represents an item in a bulleted
+list. The macro receives no arguments.
+
 % \end{markdown}
+%
+% \iffalse
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererUlItem{%
   \markdownRendererUlItemPrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-% The \mdef{markdownRendererUlItemEnd} macro represents the end of an item in a
-% bulleted list. The macro receives no arguments.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+The \mdef{markdownRendererUlItemEnd} macro represents the end of an item in a
+bulleted list. The macro receives no arguments.
+
 % \end{markdown}
+%
+% \iffalse
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererUlItemEnd{%
   \markdownRendererUlItemEndPrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-% The \mdef{markdownRendererUlEnd} macro represents the end of a bulleted list
-% that contains an item with several paragraphs of text (the list is not
-% tight). The macro receives no arguments.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+The \mdef{markdownRendererUlEnd} macro represents the end of a bulleted list
+that contains an item with several paragraphs of text (the list is not
+tight). The macro receives no arguments.
+
 % \end{markdown}
+%
+% \iffalse
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererUlEnd{%
   \markdownRendererUlEndPrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-% The \mdef{markdownRendererUlEndTight} macro represents the end of a bulleted
-% list that contains no item with several paragraphs of text (the list is
-% tight). This macro will only be produced, when the \Opt{tightLists} option is
-% `false`. The macro receives no arguments.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+The \mdef{markdownRendererUlEndTight} macro represents the end of a bulleted
+list that contains no item with several paragraphs of text (the list is
+tight). This macro will only be produced, when the \Opt{tightLists} option is
+`false`. The macro receives no arguments.
+
 % \end{markdown}
+%
+% \iffalse
+
+##### Plain \TeX{} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\input markdown
+\def\markdownOptionTightLists{true}
+
+\def\markdownRendererInterblockSeparator{}
+\def\markdownRendererUlBeginTight{ (}
+\def\markdownRendererUlItem{%
+  \def\markdownRendererUlItem{%
+    ,
+    \def\markdownRendererUlItem{, and }%
+  }%
+}
+\def\markdownRendererUlItemEnd{}
+\def\markdownRendererUlEndTight{).}
+
+\markdownBegin
+This is a tight list
+
+- the first item
+- the second item
+- the third item
+\markdownEnd
+
+\def\markdownRendererInterblockSeparator{%
+  :\par
+  \def\markdownRendererInterblockSeparator{\par}%
+}
+\def\markdownRendererUlBegin{}
+\def\markdownRendererUlItem{--\kern 0.5em}
+\def\markdownRendererUlItemEnd{.\par}
+\def\markdownRendererUlEnd{}
+
+\markdownBegin
+This is a loose list
+
+- This is the first item
+
+- This is the second item
+
+- This is the third item
+\markdownEnd
+
+\bye
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+luatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> This is a tight list (the first item, the second item, and the third item).
+>
+> This is a loose list:
+> 
+> - This is the first item.
+> 
+> - This is the second item.
+> 
+> - This is the third item.
+
+##### \LaTeX{} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\documentclass{article}
+\usepackage[tightLists]{markdown}
+\begin{document}
+
+\begin{markdown*}{
+  renderers = {
+    interblockSeparator = {},
+    ulBeginTight = { (},
+    ulItem = {%
+      \def\markdownRendererUlItem{%
+        ,
+        \def\markdownRendererUlItem{, and }%
+      }%
+    },
+    ulItemEnd = {},
+    ulEndTight = {).},
+  },  
+}
+This is a tight list
+
+- the first item
+- the second item
+- the third item
+\end{markdown*}
+
+\begin{markdown*}{
+  renderers = {
+    interblockSeparator = {%
+      :\par
+      \def\markdownRendererInterblockSeparator{\par}%
+    },
+    ulBeginTight = {\begin{itemize}},
+    ulItem = {\item},
+    ulItemEnd = {.},
+    ulEnd = {\end{itemize}},
+  },  
+}
+This is a loose list
+
+- This is the first item
+
+- This is the second item
+
+- This is the third item
+\end{markdown*}
+
+\end{document}
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+lualatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> This is a tight list (the first item, the second item, and the third item).
+>
+> This is a loose list:
+> 
+> - This is the first item.
+> 
+> - This is the second item.
+> 
+> - This is the third item.
+
+##### \Hologo{ConTeXt} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\usemodule[t][markdown]
+\def\markdownOptionTightLists{true}
+\starttext
+
+\def\markdownRendererInterblockSeparator{}
+\def\markdownRendererUlBeginTight{ (}
+\def\markdownRendererUlItem{%
+  \def\markdownRendererUlItem{%
+    ,
+    \def\markdownRendererUlItem{, and }%
+  }%
+}
+\def\markdownRendererUlItemEnd{}
+\def\markdownRendererUlEndTight{).}
+
+\startmarkdown
+This is a tight list
+
+- the first item
+- the second item
+- the third item
+\stopmarkdown
+
+\def\markdownRendererInterblockSeparator{%
+  :\par
+  \def\markdownRendererInterblockSeparator{\par}%
+}
+\def\markdownRendererUlBegin{\startitemize}
+\def\markdownRendererUlItem{\item}
+\def\markdownRendererUlItemEnd{.}
+\def\markdownRendererUlEnd{\stopitemize}
+
+\startmarkdown
+This is a loose list
+
+- This is the first item
+
+- This is the second item
+
+- This is the third item
+\stopmarkdown
+
+\stoptext
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+context document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> This is a tight list (the first item, the second item, and the third item).
+>
+> This is a loose list:
+> 
+> - This is the first item.
+> 
+> - This is the second item.
+> 
+> - This is the third item.
+
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererUlEndTight{%
   \markdownRendererUlEndTightPrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-%#### Ordered List Renderers
-% The \mdef{markdownRendererOlBegin} macro represents the beginning of an
-% ordered list that contains an item with several paragraphs of text (the
-% list is not tight). The macro receives no arguments.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+#### Ordered List Renderers
+The \mdef{markdownRendererOlBegin} macro represents the beginning of an
+ordered list that contains an item with several paragraphs of text (the
+list is not tight). The macro receives no arguments.
+
 % \end{markdown}
+%
+% \iffalse
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererOlBegin{%
   \markdownRendererOlBeginPrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-% The \mdef{markdownRendererOlBeginTight} macro represents the beginning of an
-% ordered list that contains no item with several paragraphs of text (the
-% list is tight). This macro will only be produced, when the \Opt{tightLists}
-% option is `false`. The macro receives no arguments.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+The \mdef{markdownRendererOlBeginTight} macro represents the beginning of an
+ordered list that contains no item with several paragraphs of text (the
+list is tight). This macro will only be produced, when the \Opt{tightLists}
+option is `false`. The macro receives no arguments.
+
 % \end{markdown}
+%
+% \iffalse
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererOlBeginTight{%
   \markdownRendererOlBeginTightPrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-% The \mdef{markdownRendererOlItem} macro represents an item in an ordered list.
-% This macro will only be produced, when the \Opt{startNumber} option is
-% `false`.  The macro receives no arguments.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+The \mdef{markdownRendererOlItem} macro represents an item in an ordered list.
+This macro will only be produced, when the \Opt{startNumber} option is
+`false`.  The macro receives no arguments.
+
 % \end{markdown}
+%
+% \iffalse
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererOlItem{%
   \markdownRendererOlItemPrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-% The \mdef{markdownRendererOlItemEnd} macro represents the end of an item in
-% an ordered list. The macro receives no arguments.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+The \mdef{markdownRendererOlItemEnd} macro represents the end of an item in
+an ordered list. The macro receives no arguments.
+
 % \end{markdown}
+%
+% \iffalse
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererOlItemEnd{%
   \markdownRendererOlItemEndPrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-% The \mdef{markdownRendererOlItemWithNumber} macro represents an item in an
-% ordered list.  This macro will only be produced, when the \Opt{startNumber}
-% option is `true`.  The macro receives no arguments.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+The \mdef{markdownRendererOlItemWithNumber} macro represents an item in an
+ordered list.  This macro will only be produced, when the \Opt{startNumber}
+option is `true`.  The macro receives no arguments.
+
 % \end{markdown}
+%
+% \iffalse
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererOlItemWithNumber{%
   \markdownRendererOlItemWithNumberPrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-% The \mdef{markdownRendererOlEnd} macro represents the end of an ordered list
-% that contains an item with several paragraphs of text (the list is not
-% tight). The macro receives no arguments.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+The \mdef{markdownRendererOlEnd} macro represents the end of an ordered list
+that contains an item with several paragraphs of text (the list is not
+tight). The macro receives no arguments.
+
 % \end{markdown}
+%
+% \iffalse
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererOlEnd{%
   \markdownRendererOlEndPrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-% The \mdef{markdownRendererOlEndTight} macro represents the end of an ordered
-% list that contains no item with several paragraphs of text (the list is
-% tight). This macro will only be produced, when the \Opt{tightLists} option is
-% `false`. The macro receives no arguments.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+The \mdef{markdownRendererOlEndTight} macro represents the end of an ordered
+list that contains no item with several paragraphs of text (the list is
+tight). This macro will only be produced, when the \Opt{tightLists} option is
+`false`. The macro receives no arguments.
+
 % \end{markdown}
+%
+% \iffalse
+
+##### Plain \TeX{} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\input markdown
+\def\markdownOptionTightLists{true}
+\def\markdownOptionStartNumber{true}
+
+\def\markdownRendererInterblockSeparator{}
+\def\markdownRendererOlBeginTight{ (}
+\def\markdownRendererOlItemWithNumber#1{%
+  \ifnum #1=1\relax
+    the first
+  \else
+    \ifnum #1=2\relax
+      , the second
+    \else
+      , and the third
+    \fi
+  \fi
+}
+\def\markdownRendererOlItemEnd{}
+\def\markdownRendererOlEndTight{).}
+
+\markdownBegin
+This is a tight list
+
+1. item
+2. item
+3. item
+\markdownEnd
+
+\def\markdownRendererInterblockSeparator{%
+  :\par
+  \def\markdownRendererInterblockSeparator{\par}%
+}
+\def\markdownRendererOlBegin{}
+\def\markdownRendererOlItemWithNumber#1{%
+  #1.\kern 0.5em%
+  This is the
+  \ifnum #1=1\relax
+    first
+  \else
+    \ifnum #1=2\relax
+      second
+    \else
+      third
+    \fi
+  \fi
+}
+\def\markdownRendererOlItemEnd{.\par}
+\def\markdownRendererOlEnd{}
+
+\markdownBegin
+This is a loose list
+
+1. item
+
+2. item
+
+3. item
+\markdownEnd
+
+\bye
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+luatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> This is a tight list (the first item, the second item, and the third item).
+>
+> This is a loose list:
+> 
+> 1. This is the first item.
+> 
+> 2. This is the second item.
+> 
+> 3. This is the third item.
+
+##### \LaTeX{} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\documentclass{article}
+\usepackage[tightLists, startNumber]{markdown}
+\begin{document}
+
+\begin{markdown*}{
+  renderers = {
+    interblockSeparator = {},
+    olBeginTight = { (},
+    olItemWithNumber = {%
+      \ifnum #1=1\relax
+        the first
+      \else
+        \ifnum #1=2\relax
+          , the second
+        \else
+          , and the third
+        \fi
+      \fi
+    },
+    olItemEnd = {},
+    olEndTight = {).},
+  },  
+}
+This is a tight list
+
+1. item
+2. item
+3. item
+\end{markdown*}
+
+\begin{markdown*}{
+  renderers = {
+    interblockSeparator = {%
+      :\par
+      \def\markdownRendererInterblockSeparator{\par}%
+    },
+    olBeginTight = {\begin{enumerate}},
+    olItemWithNumber = {%
+      \item This is the
+      \ifnum #1=1\relax
+        first
+      \else
+        \ifnum #1=2\relax
+          second
+        \else
+          third
+        \fi
+      \fi
+    },
+    olItemEnd = {.},
+    olEnd = {\end{enumerate}},
+  },  
+}
+This is a loose list
+
+1. item
+
+2. item
+
+3. item
+\end{markdown*}
+
+\end{document}
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+lualatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> This is a tight list (the first item, the second item, and the third item).
+>
+> This is a loose list:
+> 
+> 1. This is the first item.
+> 
+> 2. This is the second item.
+> 
+> 3. This is the third item.
+
+##### \Hologo{ConTeXt} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\usemodule[t][markdown]
+\def\markdownOptionTightLists{true}
+\def\markdownOptionStartNumber{true}
+\starttext
+
+\def\markdownRendererInterblockSeparator{}
+\def\markdownRendererOlBeginTight{ (}
+\def\markdownRendererOlItemWithNumber#1{%
+  \ifnum #1=1\relax
+    the first
+  \else
+    \ifnum #1=2\relax
+      , the second
+    \else
+      , and the third
+    \fi
+  \fi
+}
+\def\markdownRendererOlItemEnd{}
+\def\markdownRendererOlEndTight{).}
+
+\startmarkdown
+This is a tight list
+
+1. item
+2. item
+3. item
+\stopmarkdown
+
+\def\markdownRendererInterblockSeparator{%
+  :\par
+  \def\markdownRendererInterblockSeparator{\par}%
+}
+\def\markdownRendererOlBegin{\startitemize}
+\def\markdownRendererOlItemWithNumber#1{%
+  \sym{#1.}
+  This is the
+  \ifnum #1=1\relax
+    first
+  \else
+    \ifnum #1=2\relax
+      second
+    \else
+      third
+    \fi
+  \fi
+}
+\def\markdownRendererOlItemEnd{.\par}
+\def\markdownRendererOlEnd{\stopitemize}
+
+\startmarkdown
+This is a loose list
+
+1. item
+
+2. item
+
+3. item
+\stopmarkdown
+
+\stoptext
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+context document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> This is a tight list (the first item, the second item, and the third item).
+>
+> This is a loose list:
+> 
+> 1. This is the first item.
+> 
+> 2. This is the second item.
+> 
+> 3. This is the third item.
+
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererOlEndTight{%
   \markdownRendererOlEndTightPrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
-%
-%#### Definition List Renderers
-% The following macros are only produces, when the \Opt{definitionLists} option
-% is `true`.
 %
-% The \mdef{markdownRendererDlBegin} macro represents the beginning of a
-% definition list that contains an item with several paragraphs of text (the
-% list is not tight). The macro receives no arguments.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+#### Definition List Renderers
+The following macros are only produced, when the \Opt{definitionLists} option
+is `true`.
+
+The \mdef{markdownRendererDlBegin} macro represents the beginning of a
+definition list that contains an item with several paragraphs of text (the
+list is not tight). The macro receives no arguments.
+
 % \end{markdown}
+%
+% \iffalse
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererDlBegin{%
   \markdownRendererDlBeginPrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-% The \mdef{markdownRendererDlBeginTight} macro represents the beginning of a
-% definition list that contains an item with several paragraphs of text (the
-% list is not tight). This macro will only be produced, when the
-% \Opt{tightLists} option is `false`. The macro receives no arguments.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+The \mdef{markdownRendererDlBeginTight} macro represents the beginning of a
+definition list that contains an item with several paragraphs of text (the
+list is not tight). This macro will only be produced, when the
+\Opt{tightLists} option is `false`. The macro receives no arguments.
+
 % \end{markdown}
+%
+% \iffalse
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererDlBeginTight{%
   \markdownRendererDlBeginTightPrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-% The \mdef{markdownRendererDlItem} macro represents a term in a definition
-% list. The macro receives a single argument that corresponds to the term
-% being defined.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+The \mdef{markdownRendererDlItem} macro represents a term in a definition
+list. The macro receives a single argument that corresponds to the term
+being defined.
+
 % \end{markdown}
+%
+% \iffalse
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererDlItem{%
   \markdownRendererDlItemPrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-% The \mdef{markdownRendererDlItemEnd} macro represents the end of a list of
-% definitions for a single term.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+The \mdef{markdownRendererDlItemEnd} macro represents the end of a list of
+definitions for a single term.
+
 % \end{markdown}
+%
+% \iffalse
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererDlItemEnd{%
   \markdownRendererDlItemEndPrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-% The \mdef{markdownRendererDlDefinitionBegin} macro represents the beginning
-% of a definition in a definition list. There can be several definitions for
-% a single term.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+The \mdef{markdownRendererDlDefinitionBegin} macro represents the beginning
+of a definition in a definition list. There can be several definitions for
+a single term.
+
 % \end{markdown}
+%
+% \iffalse
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererDlDefinitionBegin{%
   \markdownRendererDlDefinitionBeginPrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-% The \mdef{markdownRendererDlDefinitionEnd} macro represents the end of a
-% definition in a definition list. There can be several definitions for a
-% single term.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+The \mdef{markdownRendererDlDefinitionEnd} macro represents the end of a
+definition in a definition list. There can be several definitions for a
+single term.
+
 % \end{markdown}
+%
+% \iffalse
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererDlDefinitionEnd{%
   \markdownRendererDlDefinitionEndPrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-% The \mdef{markdownRendererDlEnd} macro represents the end of a definition
-% list that contains an item with several paragraphs of text (the list is not
-% tight). The macro receives no arguments.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+The \mdef{markdownRendererDlEnd} macro represents the end of a definition
+list that contains an item with several paragraphs of text (the list is not
+tight). The macro receives no arguments.
+
 % \end{markdown}
+%
+% \iffalse
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererDlEnd{%
   \markdownRendererDlEndPrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-% The \mdef{markdownRendererDlEndTight} macro represents the end of a
-% definition list that contains no item with several paragraphs of text (the
-% list is tight). This macro will only be produced, when the \Opt{tightLists}
-% option is `false`. The macro receives no arguments.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+The \mdef{markdownRendererDlEndTight} macro represents the end of a
+definition list that contains no item with several paragraphs of text (the
+list is tight). This macro will only be produced, when the \Opt{tightLists}
+option is `false`. The macro receives no arguments.
+
 % \end{markdown}
+%
+% \iffalse
+
+##### Plain \TeX{} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\input markdown
+\def\markdownOptionDefinitionLists{true}
+\def\markdownOptionTightLists{true}
+
+\def\markdownRendererInterblockSeparator{%
+  :%
+  \def\markdownRendererInterblockSeparator{\par}%
+}
+\def\markdownRendererDlBeginTight{%
+  \begingroup
+  \parindent=0pt
+}
+\def\markdownRendererDlItem#1{%
+  \par{\bf#1}%
+  \def\markdownRendererDlDefinitionEnd{%
+    ,
+    \def\markdownRendererDlDefinitionEnd{%
+      , and
+      \def\markdownRendererDlDefinitionEnd{.}%
+    }%
+  }%
+}
+\def\markdownRendererDlItemEnd{}
+\def\markdownRendererDlDefinitionBegin{\par--\kern 0.5em}
+\def\markdownRendererDlEndTight{\endgroup}
+
+\markdownBegin
+This is a tight definition list
+
+Coffee
+:   black hot drink
+:   prepared from roasted coffee beans
+:   one of the most traded agricultural commodities in the world
+
+Milk
+:   white cold drink
+:   nutrient-rich
+:   produced on an industrial scale
+\markdownEnd
+
+\def\markdownRendererInterblockSeparator{%
+  \def\markdownRendererInterblockSeparator{\par}%
+}
+\def\markdownRendererDlBegin{}
+\def\markdownRendererDlItem#1{%
+  . #1 is a
+  \def\markdownRendererDlDefinitionBegin{%
+    \def\markdownRendererDlDefinitionBegin{%
+      ,
+      \def\markdownRendererDlDefinitionBegin{, and }%
+    }%
+  }%
+}
+\def\markdownRendererDlItemEnd{}
+\def\markdownRendererDlDefinitionEnd{}
+\def\markdownRendererDlEnd{.}
+
+\markdownBegin
+This is a loose definition list
+
+Coffee
+
+:   black hot drink
+
+:   prepared from roasted coffee beans
+
+:   one of the most traded agricultural commodities in the world
+
+Milk
+
+:   white cold drink
+
+:   nutrient-rich
+
+:   produced on an industrial scale
+\markdownEnd
+
+\bye
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+luatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> This is a tight definition list:
+>
+> **Coffee**
+>
+> - black hot drink,
+> - prepared from roasted coffee beans, and
+> - one of the most traded agricultural commodities in the world.
+>
+> **Milk**
+>
+> - white cold drink,
+> - nutrient-rich, and
+> - produced on an industrial scale.
+>
+> This is a loose definition list. Coffee is a black hot drink, prepared from
+> roasted coffee beans, and one of the most traded agricultural commodities in
+> the world. Milk is a white cold drink, nutrient-rich, and produced on an
+> industrial scale.
+
+##### \LaTeX{} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\documentclass{article}
+\usepackage[definitionLists, tightLists]{markdown}
+\begin{document}
+
+\begin{markdown*}{
+  renderers = {
+    interblockSeparator = {%
+      :%
+      \def\markdownRendererInterblockSeparator{\par}%
+    },
+    dlBeginTight = {\begin{description}},
+    dlItem = {%
+      \item[#1]
+      \begin{itemize}
+      \def\markdownRendererDlDefinitionEnd{%
+        ,
+        \def\markdownRendererDlDefinitionEnd{%
+          , and
+          \def\markdownRendererDlDefinitionEnd{.}%
+        }%
+      }%
+    },
+    dlItemEnd = {\end{itemize}},
+    dlDefinitionBegin = \item,
+    dlEndTight = {\end{description}},
+  },
+}
+This is a tight definition list
+
+Coffee
+:   black hot drink
+:   prepared from roasted coffee beans
+:   one of the most traded agricultural commodities in the world
+
+Milk
+:   white cold drink
+:   nutrient-rich
+:   produced on an industrial scale
+\end{markdown*}
+
+\begin{markdown*}{
+  renderers = {
+    interblockSeparator = {%
+      \def\markdownRendererInterblockSeparator{\par}%
+    },
+    dlBegin = {},
+    dlItem = {%
+      . #1 is a
+      \def\markdownRendererDlDefinitionBegin{%
+        \def\markdownRendererDlDefinitionBegin{%
+          ,
+          \def\markdownRendererDlDefinitionBegin{, and }%
+        }%
+      }%
+    },
+    dlItemEnd = {},
+    dlDefinitionEnd = {},
+    dlEnd = {.},
+  },
+}
+This is a loose definition list
+
+Coffee
+
+:   black hot drink
+
+:   prepared from roasted coffee beans
+
+:   one of the most traded agricultural commodities in the world
+
+Milk
+
+:   white cold drink
+
+:   nutrient-rich
+
+:   produced on an industrial scale
+\end{markdown*}
+
+\end{document}
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+lualatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> This is a tight definition list:
+>
+> **Coffee**
+>
+> - black hot drink,
+> - prepared from roasted coffee beans, and
+> - one of the most traded agricultural commodities in the world.
+>
+> **Milk**
+>
+> - white cold drink,
+> - nutrient-rich, and
+> - produced on an industrial scale.
+>
+> This is a loose definition list. Coffee is a black hot drink, prepared from
+> roasted coffee beans, and one of the most traded agricultural commodities in
+> the world. Milk is a white cold drink, nutrient-rich, and produced on an
+> industrial scale.
+
+##### \Hologo{ConTeXt} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\usemodule[t][markdown]
+\def\markdownOptionDefinitionLists{true}
+\def\markdownOptionTightLists{true}
+\starttext
+
+\def\markdownRendererInterblockSeparator{%
+  :%
+  \def\markdownRendererInterblockSeparator{\par}%
+}
+\def\markdownRendererDlBeginTight{}
+\def\markdownRendererDlItem#1{%
+  \par{\bf#1}%
+  \startitemize
+  \def\markdownRendererDlDefinitionEnd{%
+    ,
+    \def\markdownRendererDlDefinitionEnd{%
+      , and
+      \def\markdownRendererDlDefinitionEnd{.}%
+    }%
+  }%
+}
+\def\markdownRendererDlItemEnd{\stopitemize}
+\def\markdownRendererDlDefinitionBegin{\item}
+\def\markdownRendererDlEndTight{}
+
+\startmarkdown
+This is a tight definition list
+
+Coffee
+:   black hot drink
+:   prepared from roasted coffee beans
+:   one of the most traded agricultural commodities in the world
+
+Milk
+:   white cold drink
+:   nutrient-rich
+:   produced on an industrial scale
+\stopmarkdown
+
+\def\markdownRendererInterblockSeparator{%
+  \def\markdownRendererInterblockSeparator{\par}%
+}
+\def\markdownRendererDlBegin{}
+\def\markdownRendererDlItem#1{%
+  . #1 is a
+  \def\markdownRendererDlDefinitionBegin{%
+    \def\markdownRendererDlDefinitionBegin{%
+      ,
+      \def\markdownRendererDlDefinitionBegin{, and }%
+    }%
+  }%
+}
+\def\markdownRendererDlItemEnd{}
+\def\markdownRendererDlDefinitionEnd{}
+\def\markdownRendererDlEnd{.}
+
+\startmarkdown
+This is a loose definition list
+
+Coffee
+
+:   black hot drink
+
+:   prepared from roasted coffee beans
+
+:   one of the most traded agricultural commodities in the world
+
+Milk
+
+:   white cold drink
+
+:   nutrient-rich
+
+:   produced on an industrial scale
+\stopmarkdown
+
+\stoptext
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+context document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> This is a tight definition list:
+>
+> **Coffee**
+>
+> - black hot drink,
+> - prepared from roasted coffee beans, and
+> - one of the most traded agricultural commodities in the world.
+>
+> **Milk**
+>
+> - white cold drink,
+> - nutrient-rich, and
+> - produced on an industrial scale.
+>
+> This is a loose definition list. Coffee is a black hot drink, prepared from
+> roasted coffee beans, and one of the most traded agricultural commodities in
+> the world. Milk is a white cold drink, nutrient-rich, and produced on an
+> industrial scale.
+
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererDlEndTight{%
   \markdownRendererDlEndTightPrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-%#### Emphasis Renderers
-% The \mdef{markdownRendererEmphasis} macro represents an emphasized span of
-% text. The macro receives a single argument that corresponds to the emphasized
-% span of text.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+#### Emphasis Renderers
+The \mdef{markdownRendererEmphasis} macro represents an emphasized span of
+text. The macro receives a single argument that corresponds to the emphasized
+span of text.
+
 % \end{markdown}
+%
+% \iffalse
+
+##### Plain \TeX{} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\input markdown
+\def\markdownRendererEmphasis#1{{\it#1}}
+\def\markdownRendererStrongEmphasis#1{{\bf#1}}
+\markdownBegin
+This is *emphasis*.
+
+This is **strong emphasis**.
+\markdownEnd
+\bye
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+luatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> This is *emphasis*.
+>
+> This is **strong emphasis**.
+
+##### \LaTeX{} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\documentclass{article}
+\usepackage{markdown}
+\markdownSetup{
+  renderers = {
+    emphasis = {\emph{#1}},
+    strongEmphasis = {\textbf{#1}},
+  },
+}
+\begin{document}
+\begin{markdown}
+This is *emphasis*.
+
+This is **strong emphasis**.
+\end{markdown}
+\end{document}
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+lualatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> This is *emphasis*.
+>
+> This is **strong emphasis**.
+
+##### \Hologo{ConTeXt} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\usemodule[t][markdown]
+\def\markdownRendererEmphasis#1{\emph{#1}}
+\def\markdownRendererStrongEmphasis#1{\bold{#1}}
+\starttext
+\startmarkdown
+This is *emphasis*.
+
+This is **strong emphasis**.
+\stopmarkdown
+\stoptext
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+context document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> This is *emphasis*.
+>
+> This is **strong emphasis**.
+
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererEmphasis{%
   \markdownRendererEmphasisPrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-% The \mdef{markdownRendererStrongEmphasis} macro represents a strongly
-% emphasized span of text. The macro receives a single argument that
-% corresponds to the emphasized span of text.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+The \mdef{markdownRendererStrongEmphasis} macro represents a strongly
+emphasized span of text. The macro receives a single argument that
+corresponds to the emphasized span of text.
+
 % \end{markdown}
+%
+% \iffalse
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererStrongEmphasis{%
   \markdownRendererStrongEmphasisPrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-%#### Block Quote Renderers
-% The \mdef{markdownRendererBlockQuoteBegin} macro represents the beginning of
-% a block quote. The macro receives no arguments.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+#### Block Quote Renderers
+The \mdef{markdownRendererBlockQuoteBegin} macro represents the beginning of
+a block quote. The macro receives no arguments.
+
 % \end{markdown}
+%
+% \iffalse
+
+##### Plain \TeX{} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\input markdown
+\def\markdownRendererBlockQuoteBegin{%
+  \begingroup
+  \vskip\parindent
+  \leftskip=2\parindent
+  \parindent=0pt
+}
+\def\markdownRendererBlockQuoteEnd{%
+  \par
+  \vskip\parindent
+  \endgroup
+}
+\markdownBegin
+A quote from William Shakespeare's King Lear:
+
+> This is the excellent foppery of the world that when we are
+> sick in fortune---often the surfeit of our own behavior---we
+> make guilty of our disasters the sun, the moon, and the
+> stars [...]
+\markdownEnd
+\bye
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+luatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> A quote from William Shakespeare's King Lear:
+>
+> > This is the excellent foppery of the world that when we are
+> > sick in fortune—often the surfeit of our own behavior—we
+> > make guilty of our disasters the sun, the moon, and the
+> > stars [...]
+
+##### \LaTeX{} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\documentclass{article}
+\usepackage{markdown}
+\markdownSetup{
+  renderers = {
+    blockQuoteBegin = {\begin{quote}},
+    blockQuoteEnd = {\end{quote}},
+  },
+}
+\begin{document}
+\begin{markdown}
+A quote from William Shakespeare's King Lear:
+
+> This is the excellent foppery of the world that when we are
+> sick in fortune---often the surfeit of our own behavior---we
+> make guilty of our disasters the sun, the moon, and the
+> stars [...]
+\end{markdown}
+\end{document}
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+lualatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> A quote from William Shakespeare's King Lear:
+>
+> > This is the excellent foppery of the world that when we are
+> > sick in fortune—often the surfeit of our own behavior—we
+> > make guilty of our disasters the sun, the moon, and the
+> > stars [...]
+
+##### \Hologo{ConTeXt} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\usemodule[t][markdown]
+\def\markdownRendererBlockQuoteBegin{\startquotation}
+\def\markdownRendererBlockQuoteEnd{\stopquotation}
+\starttext
+\startmarkdown
+A quote from William Shakespeare's King Lear:
+
+> This is the excellent foppery of the world that when we are
+> sick in fortune---often the surfeit of our own behavior---we
+> make guilty of our disasters the sun, the moon, and the
+> stars [...]
+\stopmarkdown
+\stoptext
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+context document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> A quote from William Shakespeare's King Lear:
+>
+> > This is the excellent foppery of the world that when we are
+> > sick in fortune—often the surfeit of our own behavior—we
+> > make guilty of our disasters the sun, the moon, and the
+> > stars [...]
+
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererBlockQuoteBegin{%
   \markdownRendererBlockQuoteBeginPrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-% The \mdef{markdownRendererBlockQuoteEnd} macro represents the end of a block
-% quote. The macro receives no arguments.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+The \mdef{markdownRendererBlockQuoteEnd} macro represents the end of a block
+quote. The macro receives no arguments.
+
 % \end{markdown}
+%
+% \iffalse
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererBlockQuoteEnd{%
   \markdownRendererBlockQuoteEndPrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-%#### Code Block Renderers
-% The \mdef{markdownRendererInputVerbatim} macro represents a code
-% block. The macro receives a single argument that corresponds to the
-% filename of a file contaning the code block contents.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+#### Code Block Renderers
+The \mdef{markdownRendererInputVerbatim} macro represents a code
+block. The macro receives a single argument that corresponds to the
+filename of a file contaning the code block contents.
+
 % \end{markdown}
+%
+% \iffalse
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererInputVerbatim{%
   \markdownRendererInputVerbatimPrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-% The \mdef{markdownRendererInputFencedCode} macro represents a fenced code
-% block. This macro will only be produced, when the \Opt{fencedCode} option is
-% `true`. The macro receives two arguments that correspond to the filename of
-% a file contaning the code block contents and to the code fence infostring.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+The \mdef{markdownRendererInputFencedCode} macro represents a fenced code
+block. This macro will only be produced, when the \Opt{fencedCode} option is
+`true`. The macro receives two arguments that correspond to the filename of
+a file contaning the code block contents and to the code fence infostring.
+
 % \end{markdown}
+%
+% \iffalse
+
+##### \LaTeX{} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\documentclass{article}
+\usepackage{verbatim}
+\usepackage[hyphens]{url}
+\usepackage[fencedCode]{markdown}
+\markdownSetup{
+  renderers = {
+    interblockSeparator = {
+      \def\markdownRendererInterblockSeparator{%
+        \par
+        \def\markdownRendererInterblockSeparator{%
+          \def\markdownRendererInterblockSeparator{%
+            \par
+          }%
+        }%
+      }%
+    },
+    inputVerbatim = {
+      is contained in file \url{#1}:%
+      \verbatiminput{#1}%
+    },
+    inputFencedCode = {
+      in #2 \markdownRendererInputVerbatim{#1}%
+    },
+  },
+}
+\begin{document}
+\begin{markdown}
+The following code
+
+    def foo(bar):
+      if len(bar) <= 1:
+        return bar[0]
+      elif len(bar) == 2:
+        return sorted(bar)
+      else:
+        baz = len(bar) // 2
+        return foo(bar[baz:], bar[:baz])
+
+The following code
+
+~~~ Python
+>>> foo([4, 2, 1, 3])
+[1, 2, 3, 4]
+~~~~~~~~~~
+\end{markdown}
+\end{document}
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+lualatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text except for the filename, which may differ:
+
+> The following code is contained in file
+> `./_markdown_document/882453149edcf288976647f6fe147ada.verbatim`:
+> ``` py
+> def foo(bar):
+>   if len(bar) <= 1:
+>     return bar[:1]
+>   elif len(bar) == 2:
+>     return sorted(bar)
+>   else:
+>     baz = bar[len(bar) // 2]
+>     return (
+>       foo([qux for qux in bar if qux < baz]) + [baz] +
+>       foo([qux for qux in bar if qux > baz])
+>     )
+> ``````
+> The following code in Python contained in file
+> `./_markdown_document/cf2a96e2120cef5b1fae5fea36fcc27b.verbatim`:
+> ``` py
+> >>> foo([4, 2, 1, 3])
+> [1, 2, 3, 4]
+> ``````
+
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererInputFencedCode{%
   \markdownRendererInputFencedCodePrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-%#### Heading Renderers
-% The \mdef{markdownRendererHeadingOne} macro represents a first level heading.
-% The macro receives a single argument that corresponds to the heading text.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+#### Heading Renderers
+The \mdef{markdownRendererHeadingOne} macro represents a first level heading.
+The macro receives a single argument that corresponds to the heading text.
+
 % \end{markdown}
+%
+% \iffalse
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererHeadingOne{%
   \markdownRendererHeadingOnePrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-% The \mdef{markdownRendererHeadingTwo} macro represents a second level
-% heading. The macro receives a single argument that corresponds to the heading
-% text.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+The \mdef{markdownRendererHeadingTwo} macro represents a second level
+heading. The macro receives a single argument that corresponds to the heading
+text.
+
 % \end{markdown}
+%
+% \iffalse
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererHeadingTwo{%
   \markdownRendererHeadingTwoPrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-% The \mdef{markdownRendererHeadingThree} macro represents a third level
-% heading. The macro receives a single argument that corresponds to the heading
-% text.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+The \mdef{markdownRendererHeadingThree} macro represents a third level
+heading. The macro receives a single argument that corresponds to the heading
+text.
+
 % \end{markdown}
+%
+% \iffalse
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererHeadingThree{%
   \markdownRendererHeadingThreePrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-% The \mdef{markdownRendererHeadingFour} macro represents a fourth level
-% heading. The macro receives a single argument that corresponds to the heading
-% text.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+The \mdef{markdownRendererHeadingFour} macro represents a fourth level
+heading. The macro receives a single argument that corresponds to the heading
+text.
+
 % \end{markdown}
+%
+% \iffalse
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererHeadingFour{%
   \markdownRendererHeadingFourPrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-% The \mdef{markdownRendererHeadingFive} macro represents a fifth level
-% heading. The macro receives a single argument that corresponds to the heading
-% text.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+The \mdef{markdownRendererHeadingFive} macro represents a fifth level
+heading. The macro receives a single argument that corresponds to the heading
+text.
+
 % \end{markdown}
+%
+% \iffalse
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererHeadingFive{%
   \markdownRendererHeadingFivePrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-% The \mdef{markdownRendererHeadingSix} macro represents a sixth level
-% heading. The macro receives a single argument that corresponds to the heading
-% text.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+The \mdef{markdownRendererHeadingSix} macro represents a sixth level
+heading. The macro receives a single argument that corresponds to the heading
+text.
+
 % \end{markdown}
+%
+% \iffalse
+
+##### Plain \TeX{} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\input markdown
+\def\markdownRendererInterblockSeparator{}
+\def\markdownRendererHeadingOne{1}
+\def\markdownRendererHeadingTwo{2}
+\def\markdownRendererHeadingThree{3}
+\def\markdownRendererHeadingFour{4}
+\def\markdownRendererHeadingFive{5}
+\def\markdownRendererHeadingSix{6}
+\markdownBegin
+######
+#####
+#####
+###
+######
+\markdownEnd
+\bye
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+luatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> 65536
+
+##### \LaTeX{} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\documentclass{article}
+\usepackage{markdown}
+\markdownSetup{
+  renderers = {
+    interblockSeparator = {},
+    headingOne = 1,
+    headingTwo = 2,
+    headingThree = 3,
+    headingFour = 4,
+    headingFive = 5,
+    headingSix = 6,
+  },
+}
+\begin{document}
+\begin{markdown}
+######
+#####
+#####
+###
+######
+\end{markdown}
+\end{document}
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+lualatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> 65536
+
+##### \Hologo{ConTeXt} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\usemodule[t][markdown]
+\def\markdownRendererInterblockSeparator{}
+\def\markdownRendererHeadingOne{1}
+\def\markdownRendererHeadingTwo{2}
+\def\markdownRendererHeadingThree{3}
+\def\markdownRendererHeadingFour{4}
+\def\markdownRendererHeadingFive{5}
+\def\markdownRendererHeadingSix{6}
+\starttext
+\startmarkdown
+######
+#####
+#####
+###
+######
+\stopmarkdown
+\stoptext
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+context document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> 65536
+
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererHeadingSix{%
   \markdownRendererHeadingSixPrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-%#### Horizontal Rule Renderer
-% The \mdef{markdownRendererHorizontalRule} macro represents a horizontal rule.
-% The macro receives no arguments.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+#### Horizontal Rule Renderer
+The \mdef{markdownRendererHorizontalRule} macro represents a horizontal rule.
+The macro receives no arguments.
+
 % \end{markdown}
+%
+% \iffalse
+
+##### Plain \TeX{} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\input markdown
+\def\markdownRendererHorizontalRule{\vfil\break}
+\markdownBegin
+This is the first page.
+
+***
+
+This is the second page.
+\markdownEnd
+\bye
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+luatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> This is the first page.
+>
+> ***
+>
+> This is the second page.
+
+##### \LaTeX{} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\documentclass{article}
+\usepackage{markdown}
+\markdownSetup{
+  renderers = {
+    horizontalRule = \newpage,
+  },
+}
+\begin{document}
+\begin{markdown}
+This is the first page.
+
+***
+
+This is the second page.
+\end{markdown}
+\end{document}
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+lualatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> This is the first page.
+>
+> ***
+>
+> This is the second page.
+
+##### \Hologo{ConTeXt} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\usemodule[t][markdown]
+\def\markdownRendererHorizontalRule{\page[yes]}
+\starttext
+\startmarkdown
+This is the first page.
+
+***
+
+This is the second page.
+\stopmarkdown
+\stoptext
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+context document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> This is the first page.
+>
+> ***
+>
+> This is the second page.
+
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererHorizontalRule{%
   \markdownRendererHorizontalRulePrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-%#### Footnote Renderer
-% The \mdef{markdownRendererFootnote} macro represents a footnote. This macro
-% will only be produced, when the \Opt{footnotes} option is `true`.  The
-% macro receives a single argument that corresponds to the footnote text.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+#### Footnote Renderer
+The \mdef{markdownRendererFootnote} macro represents a footnote. This macro
+will only be produced, when the \Opt{footnotes} option is `true`.  The
+macro receives a single argument that corresponds to the footnote text.
+
 % \end{markdown}
+%
+% \iffalse
+
+##### Plain \TeX{} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\input markdown
+\def\markdownOptionFootnotes{true}
+\def\markdownRendererFootnote#1{ (and \lowercase{#1})}
+\markdownBegin
+This is some text[^1] and this is some other text[^2].
+
+ [^1]: this is a footnote
+
+ [^2]: this is some other footnote
+\markdownEnd
+\bye
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+luatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> This is some text (and this is a footnote) and this is some other
+> text (and this is some other footnote).
+
+##### \LaTeX{} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\documentclass{article}
+\usepackage[footnotes]{markdown}
+\markdownSetup{
+  renderers = {
+    footnote = { (and \MakeLowercase{#1})},
+  },
+}
+\begin{document}
+\begin{markdown}
+This is some text[^1] and this is some other text[^2].
+
+ [^1]: this is a footnote
+
+ [^2]: this is some other footnote
+\end{markdown}
+\end{document}
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+lualatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> This is some text (and this is a footnote) and this is some other
+> text (and this is some other footnote).
+
+##### \Hologo{ConTeXt} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\usemodule[t][markdown]
+\def\markdownOptionFootnotes{true}
+\def\markdownRendererFootnote#1{ (and \lowercase{#1})}
+\starttext
+\startmarkdown
+This is some text[^1] and this is some other text[^2].
+
+ [^1]: this is a footnote
+
+ [^2]: this is some other footnote
+\stopmarkdown
+\stoptext
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+context document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> This is some text (and this is a footnote) and this is some other
+> text (and this is some other footnote).
+
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererFootnote{%
   \markdownRendererFootnotePrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-%#### Parenthesized Citations Renderer
-% The \mdef{markdownRendererCite} macro represents a string of one or more
-% parenthetical citations. This macro will only be produced, when the
-% \Opt{citations} option is `true`. The macro receives the parameter
-% `{`\meta{number of citations}`}` followed by \meta{suppress
-% author}`{`\meta{prenote}`}{`\meta{postnote}`}{`\meta{name}`}` repeated
-% \meta{number of citations} times. The \meta{suppress author} parameter is
-% either the token `-`, when the author's name is to be suppressed, or `+`
-% otherwise.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+#### Parenthesized Citations Renderer
+The \mdef{markdownRendererCite} macro represents a string of one or more
+parenthetical citations. This macro will only be produced, when the
+\Opt{citations} option is `true`. The macro receives the parameter
+`{`\meta{number of citations}`}` followed by \meta{suppress
+author}`{`\meta{prenote}`}{`\meta{postnote}`}{`\meta{name}`}` repeated
+\meta{number of citations} times. The \meta{suppress author} parameter is
+either the token `-`, when the author's name is to be suppressed, or `+`
+otherwise.
+
 % \end{markdown}
+%
+% \iffalse
+
+##### \LaTeX{} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\documentclass{article}
+\usepackage[citations]{markdown}
+\newcount\citationsCounter
+\newcount\citationsTotal
+\makeatletter
+\def\citations#1#2#3#4{%
+  a parenthesized citation \emph{#4}
+  \advance\citationsCounter by 1\relax
+  \ifx\relax#2\relax
+    \ifx\relax#3\relax\else
+      with a postfix \emph{#3}%
+    \fi
+  \else
+    with a prefix \emph{#2}%
+    \ifx\relax#3\relax\else
+      \ and a postfix \emph{#3}%
+    \fi
+  \fi
+  \ifnum\citationsCounter>\citationsTotal\relax
+    .%
+    \expandafter\@gobble
+  \else
+    , and
+  \fi\citations}
+\makeatother
+\markdownSetup{
+  renderers = {
+    cite = {%
+      \citationsCounter=1%
+      \citationsTotal=#1%
+      This is
+      \expandafter\citations
+    },
+  },
+}
+\begin{document}
+\begin{markdown}
+[see @abrahams90, pp. 12; @eijkhout91, pp. 34]
+\end{markdown}
+\end{document}
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+lualatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> This is a parenthesized citation *abrahams90* with a prefix see
+> and a postfix *pp.  > 12*, and a citation *eijkhout91* with a
+> postfix *pp. 34*.
+
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererCite{%
   \markdownRendererCitePrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-%#### Text Citations Renderer
-% The \mdef{markdownRendererTextCite} macro represents a string of one or more
-% text citations. This macro will only be produced, when the
-% \Opt{citations} option is `true`. The macro receives parameters in the same 
-% format as the \m{markdownRendererCite} macro.
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
 %
+% \begin{markdown}
+
+#### Text Citations Renderer
+The \mdef{markdownRendererTextCite} macro represents a string of one or more
+text citations. This macro will only be produced, when the
+\Opt{citations} option is `true`. The macro receives parameters in the same 
+format as the \m{markdownRendererCite} macro.
+
 % \end{markdown}
+%
+% \iffalse
+
+##### \LaTeX{} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\documentclass{article}
+\usepackage[citations]{markdown}
+\newcount\citationsCounter
+\newcount\citationsTotal
+\makeatletter
+\def\citations#1#2#3#4{%
+  a text citation \emph{#4}
+  \advance\citationsCounter by 1\relax
+  \ifx\relax#2\relax
+    \ifx\relax#3\relax\else
+      with a postfix \emph{#3}%
+    \fi
+  \else
+    with a prefix \emph{#2}%
+    \ifx\relax#3\relax\else
+      \ and a postfix \emph{#3}%
+    \fi
+  \fi
+  \ifnum\citationsCounter>\citationsTotal\relax
+    .%
+    \expandafter\@gobble
+  \else
+    , and
+  \fi\citations}
+\makeatother
+\markdownSetup{
+  renderers = {
+    textCite = {%
+      \citationsCounter=1%
+      \citationsTotal=#1%
+      This is
+      \expandafter\citations
+    },
+  },
+}
+\begin{document}
+\begin{markdown}
+@abrahams90 [pp. 12; also @eijkhout91]
+\end{markdown}
+\end{document}
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+lualatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> This is a text citation *abrahams90* with a postfix *pp. 12*,
+> and a citation *eijkhout91* with a prefix *also*.
+
+%</manual-tokens>
+%<*tex>
+% \fi
+%
 %  \begin{macrocode}
 \def\markdownRendererTextCite{%
   \markdownRendererTextCitePrototype}%
 %    \end{macrocode}
 % \par
-% \begin{markdown}
 %
-%### Token Renderer Prototypes
+% \iffalse
+%</tex>
+%<*manual-tokens>
+% \fi
+%
+% \begin{markdown}
+
+### Token Renderer Prototypes
+
 % \label{sec:texrendererprototypes}
+%
+% \end{markdown}
+% \iffalse
+
+By default, token renderers point to package-defined \TeX{} macros, further
+referred to as *prototypes*, which provide useful default definitions.
+
+% \fi
+%
+% \iffalse
+
+##### Plain \TeX{} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\input markdown
+\def\markdownRendererTildePrototype{%
+  Packages can specify token renderer prototypes.%
+}
+\markdownBegin
+~
+\markdownEnd
+
+\def\markdownRendererTilde{%
+  User-defined token renderers take precedence.%
+}
+\markdownBegin
+~
+\markdownEnd
+\bye
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+luatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> Packages can specify token renderer prototypes.
+>
+> User-defined token renderers take precedence.
+
+##### \LaTeX{} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\documentclass{article}
+\usepackage{markdown}
+\markdownSetup{
+  rendererPrototypes = {
+    tilde = {Packages can specify token renderer prototypes.},
+  },
+}
+\begin{document}
+\begin{markdown}
+~
+\end{markdown}
+
+\begin{markdown*}{
+  renderers = {
+    tilde = {User-defined token renderers take precedence.},
+  },
+}
+~
+\end{markdown*}
+\end{document}
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+lualatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> Packages can specify token renderer prototypes.
+>
+> User-defined token renderers take precedence.
+
+##### \Hologo{ConTeXt} Example {.unnumbered}
+
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\usemodule[t][markdown]
+\def\markdownRendererTildePrototype{%
+  Packages can specify token renderer prototypes.%
+}
+\starttext
+\startmarkdown
+~
+\stopmarkdown
+
+\def\markdownRendererTilde{%
+  User-defined token renderers take precedence.%
+}
+\startmarkdown
+~
+\stopmarkdown
+\stoptext
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+context document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> Packages can specify token renderer prototypes.
+>
+> User-defined token renderers take precedence.
+
+%</manual-tokens>
+%<*tex>
+% \fi
+%
+% \begin{markdown}
+%
 % The following \TeX{} macros provide definitions for the token renderers (see
 % Section \ref{sec:texrenderersuser}) that have not been redefined by the
 % user. These macros are intended to be redefined by macro package authors
@@ -5934,12 +9457,11 @@ typeset.
 %    \end{macrocode}
 % \par
 % \begin{markdown}
-%
+% 
 %### Logging Facilities
-% The \mdef{markdownInfo}, \mdef{markdownWarning}, and
-% \mdef{markdownError} macros provide access to logging to the rest of
-% the macros. Their first argument specifies the text of the info, warning, or
-% error message.
+% The \mdef{markdownInfo}, \mdef{markdownWarning}, and \mdef{markdownError}
+% macros perform logging for the Markdown package. Their first argument
+% specifies the text of the info, warning, or error message.
 %
 % \end{markdown}
 %  \begin{macrocode}
@@ -5950,7 +9472,7 @@ typeset.
 % \begin{markdown}
 %
 % The \m{markdownError} macro receives a second argument that provides a help
-% text suggesting a remedy to the error.
+% text.
 %
 % \end{markdown}
 %  \begin{macrocode}
@@ -6013,11 +9535,11 @@ typeset.
 % The \mdef{markdownMode} macro specifies how the plain \TeX{} implementation
 % interfaces with the Lua interface. The valid values and their meaning are
 % as follows:
-% \begin{itemize}
-%   \item`0` -- Shell escape via the 18 output file stream
-%   \item`1` -- Shell escape via the Lua \luam{os.execute} method
-%   \item`2` -- Direct Lua access
-% \end{itemize}
+%
+% - `0` – Shell escape via the 18 output file stream
+% - `1` – Shell escape via the Lua \luam{os.execute} method
+% - `2` – Direct Lua access
+%
 % By defining the macro, the user can coerce the package to use a specific mode.
 % If the user does not define the macro prior to loading the plain \TeX{}
 % implementation, the correct value will be automatically detected. The outcome
@@ -6047,7 +9569,6 @@ typeset.
 %    \end{macrocode}
 % \iffalse
 %</tex>
-%<*latex>
 % \fi
 % \par
 % \begin{markdown}
@@ -6056,25 +9577,59 @@ typeset.
 %-------------------
 % \label{sec:latexinterface}
 %
+% \end{markdown}
 % \iffalse
-%</latex>
-%<*manual>
+%<*manual-interfaces>
+
+### \LaTeX{}
 
-LaTeX
------
+The \LaTeX{} interface provides the same level of functionality as the plain
+\TeX{} interface by using the plain \TeX{} interface behind the scenes. Unlike
+the plain \TeX{} interface, the \LaTeX{} interface uses familiar \LaTeX{}
+idioms, such as package options and environments.
 
-The LaTeX macro package provides additional syntactic sugar on top of the plain
-TeX macro package and provides sane default definitions of the token renderers.
+The \LaTeX{} interface accepts the same options as the plain \TeX{} interface,
+but now the options are specified as \meta{key}${}={}$\meta{value} pairs and
+they are passed either as package options, in the \m{markdownSetup} command, or
+as parameters for the \envm{markdown*} \LaTeX{} environment.
 
-<!-- TODO -->
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\documentclass{article}
+\usepackage{markdown}
+\begin{document}
 
-### Interfaces
+\begin{markdown}
+$\sqrt{-1}$ *equals* $i$
+\end{markdown}
 
-<!-- TODO -->
+\begin{markdown*}{hybrid}
+$\sqrt{-1}$ *equals* $i$
+\end{markdown*}
 
-%</manual>
+\end{document}
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+lualatex document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
+
+> \$\\sqrt{-1}\$ *equals* \$i\$.
+> 
+> √-̅1̅ *equals* $i$.
+
+Invoking pdfTeX should have the same effect:
+``` sh
+pdflatex --shell-escape document.tex
+``````
+
+%</manual-interfaces>
 %<*latex>
 % \fi
+% \begin{markdown}
 %
 % The \LaTeX{} interface provides \LaTeX{} environments for the typesetting of
 % markdown input from within \LaTeX{}, facilities for setting Lua interface
@@ -6086,7 +9641,7 @@ TeX macro package and provides sane default definitions of the token renderers.
 % The \LaTeX{} interface is implemented by the `markdown.sty` file, which
 % can be loaded from the \LaTeX{} document preamble as follows:
 % \end{markdown}
-% \begin{Verbatim}[commandchars=\\\{\}]
+% \begin{Verbatim}[commandchars=\\\{\},gobble=2]
 % \textbackslash{}usepackage[\textrm{\meta{options}}]\{markdown\}
 % \end{Verbatim}
 % \begin{markdown}
@@ -6164,18 +9719,6 @@ TeX macro package and provides sane default definitions of the token renderers.
 %### Options
 % \label{sec:latexoptions}
 %
-% \iffalse
-%</latex>
-%<*manual>
-
-### Options
-
-<!-- TODO -->
-
-%</manual>
-%<*latex>
-% \fi
-%
 % The \LaTeX{} options are represented by a comma-delimited list of
 % \meta{key}`=`\meta{value} pairs. For boolean options, the `=`\meta{value}
 % part is optional, and \meta{key} will be interpreted as \meta{key}`=true`.
@@ -6242,6 +9785,8 @@ TeX macro package and provides sane default definitions of the token renderers.
   \def\markdownOptionFencedCode{#1}}%
 \define@key{markdownOptions}{hashEnumerators}[true]{%
   \def\markdownOptionHashEnumerators{#1}}%
+\define@key{markdownOptions}{headerAttributes}[true]{%
+  \def\markdownOptionHeaderAttributes{#1}}%
 \define@key{markdownOptions}{html}[true]{%
   \def\markdownOptionHtml{#1}}%
 \define@key{markdownOptions}{hybrid}[true]{%
@@ -6252,6 +9797,8 @@ TeX macro package and provides sane default definitions of the token renderers.
   \def\markdownOptionPreserveTabs{#1}}%
 \define@key{markdownOptions}{smartEllipses}[true]{%
   \def\markdownOptionSmartEllipses{#1}}%
+\define@key{markdownOptions}{slice}[true]{%
+  \def\markdownOptionSlice{#1}}%
 \define@key{markdownOptions}{startNumber}[true]{%
   \def\markdownOptionStartNumber{#1}}%
 \define@key{markdownOptions}{tightLists}[true]{%
@@ -6278,18 +9825,6 @@ TeX macro package and provides sane default definitions of the token renderers.
 %#### Plain \TeX{} Markdown Token Renderers
 % \label{sec:latexrenderers}
 %
-% \iffalse
-%</latex>
-%<*manual>
-
-### Token renderers
-
-<!-- TODO -->
-
-%</manual>
-%<*latex>
-% \fi
-%
 % The \LaTeX{} interface recognizes an option with the `renderers` key,
 % whose value must be a list of options that map directly to the markdown token
 % renderer macros exposed by the plain \TeX{} interface (see Section
@@ -6580,28 +10115,52 @@ TeX macro package and provides sane default definitions of the token renderers.
 %
 % \iffalse
 %</context>
-%<*manual>
+%<*manual-interfaces>
 
-ConTeXt
--------
+### \Hologo{ConTeXt}
 
-The ConTeXt macro package provides additional syntactic sugar on top of the
-plain TeX macro package and provides sane default definitions of the token
-renderers.
+The \Hologo{ConTeXt} interface provides the same level of functionality as the
+plain \TeX{} interface by using the plain \TeX{} interface behind the scenes.
+Unlike the plain \TeX{} interface, the \Hologo{ConTeXt} interface uses familiar
+\Hologo{ConTeXt} idioms, such as environments.
 
-### Interfaces
+The \Hologo{ConTeXt} interface accepts the same options as the plain \TeX{}
+interface.
 
-<!-- TODO -->
+Using a text editor, create a text document named `document.tex` with the
+following content:
+``` tex
+\usemodule[t][markdown]
+\starttext
 
-### Options
+\startmarkdown
+$\sqrt{-1}$ *equals* $i$.
+\stopmarkdown
 
-<!-- TODO -->
+\def\markdownOptionHybrid{true}
+\startmarkdown
+$\sqrt{-1}$ *equals* $i$.
+\stopmarkdown
 
-### Token renderers
+\stoptext
+```````
+Next, invoke LuaTeX from the terminal:
+``` sh
+context document.tex
+``````
+A PDF document named `document.pdf` should be produced and contain the
+following text:
 
-<!-- TODO -->
+> \$\\sqrt{-1}\$ *equals* \$i\$.
+> 
+> √-̅1̅ *equals* $i$.
+  
+Invoking pdfTeX should have the same effect:
+``` sh
+texexec --passon=--shell-escape document.tex
+``````
 
-%</manual>
+%</manual-interfaces>
 %<*context>
 % \fi
 %
@@ -7345,6 +10904,40 @@ function M.writer.new(options)
 % \par
 % \begin{markdown}
 %
+% Parse the \Opt{slice} option and define \luamdef{writer->slice\_begin}
+% \luamdef{writer->slice\_end}, and \luamdef{writer->is\_writing}.
+%
+% \end{markdown}
+%  \begin{macrocode}
+  local slice_specifiers = {}
+  for specifier in options.slice:gmatch("[^%s]+") do
+    table.insert(slice_specifiers, specifier)
+  end
+
+  if #slice_specifiers == 2 then
+    self.slice_begin, self.slice_end = table.unpack(slice_specifiers)
+    local slice_begin_type = self.slice_begin:sub(1, 1)
+    if slice_begin_type ~= "^" and slice_begin_type ~= "$" then
+      self.slice_begin = "^" .. self.slice_begin
+    end
+    local slice_end_type = self.slice_end:sub(1, 1)
+    if slice_end_type ~= "^" and slice_end_type ~= "$" then
+      self.slice_end = "$" .. self.slice_end
+    end
+  elseif #slice_specifiers == 1 then
+    self.slice_begin = "^" .. slice_specifiers[1]
+    self.slice_end = "$" .. slice_specifiers[1]
+  end
+
+  if self.slice_begin == "^" and self.slice_end ~= "^" then
+    self.is_writing = true
+  else
+    self.is_writing = false
+  end
+%    \end{macrocode}
+% \par
+% \begin{markdown}
+%
 % Define \luamdef{writer->suffix} as the suffix of the produced cache files.
 %
 % \end{markdown}
@@ -7391,6 +10984,7 @@ function M.writer.new(options)
 % \end{markdown}
 %  \begin{macrocode}
   function self.paragraph(s)
+    if not self.is_writing then return "" end
     return s
   end
 %    \end{macrocode}
@@ -7404,7 +10998,7 @@ function M.writer.new(options)
 % \end{markdown}
 %  \begin{macrocode}
   function self.pack(name)
-    return [[\input"]] .. name .. [["\relax{}]]
+    return [[\input ]] .. name .. [[\relax{}]]
   end
 %    \end{macrocode}
 % \par
@@ -7415,7 +11009,10 @@ function M.writer.new(options)
 %
 % \end{markdown}
 %  \begin{macrocode}
-  self.interblocksep = "\\markdownRendererInterblockSeparator\n{}"
+  function self.interblocksep()
+    if not self.is_writing then return "" end
+    return "\\markdownRendererInterblockSeparator\n{}"
+  end
 %    \end{macrocode}
 % \par
 % \begin{markdown}
@@ -7451,7 +11048,10 @@ function M.writer.new(options)
 %
 % \end{markdown}
 %  \begin{macrocode}
-  self.hrule = "\\markdownRendererHorizontalRule{}"
+  function self.hrule()
+    if not self.is_writing then return "" end
+    return "\\markdownRendererHorizontalRule{}"
+  end
 %    \end{macrocode}
 % \par
 % \begin{markdown}
@@ -7586,29 +11186,29 @@ function M.writer.new(options)
 %
 % \end{markdown}
 %  \begin{macrocode}
-local languages_json = (function()
-  local kpse = require("kpse")
-  kpse.set_program_name("luatex")
-  local base, prev, curr
-  for _, file in ipairs{kpse.lookup(options.contentBlocksLanguageMap,
-                                    { all=true })} do
-    json = io.open(file, "r"):read("*all")
-                             :gsub('("[^\n]-"):','[%1]=')
-    curr = (function()
-      local _ENV={ json=json, load=load } -- run in sandbox
-      return load("return "..json)()
-    end)()
-    if type(curr) == "table" then
-      if base == nil then
-        base = curr
-      else
-        setmetatable(prev, { __index = curr })
+  local languages_json = (function()
+    local kpse = require("kpse")
+    kpse.set_program_name("luatex")
+    local base, prev, curr
+    for _, file in ipairs{kpse.lookup(options.contentBlocksLanguageMap,
+                                      { all=true })} do
+      json = io.open(file, "r"):read("*all")
+                               :gsub('("[^\n]-"):','[%1]=')
+      curr = (function()
+        local _ENV={ json=json, load=load } -- run in sandbox
+        return load("return "..json)()
+      end)()
+      if type(curr) == "table" then
+        if base == nil then
+          base = curr
+        else
+          setmetatable(prev, { __index = curr })
+        end
+        prev = curr
       end
-      prev = curr
     end
-  end
-  return base or {}
-end)()
+    return base or {}
+  end)()
 %    \end{macrocode}
 % \par
 % \begin{markdown}
@@ -7622,6 +11222,7 @@ end)()
 % \end{markdown}
 %  \begin{macrocode}
   function self.contentblock(src,suf,type,tit)
+    if not self.is_writing then return "" end
     src = src.."."..suf
     suf = suf:lower()
     if type == "onlineimage" then
@@ -7658,6 +11259,7 @@ end)()
   end
 
   function self.bulletlist(items,tight)
+    if not self.is_writing then return "" end
     local buffer = {}
     for _,item in ipairs(items) do
       buffer[#buffer + 1] = ulitem(item)
@@ -7694,6 +11296,7 @@ end)()
   end
 
   function self.orderedlist(items,tight,startnum)
+    if not self.is_writing then return "" end
     local buffer = {}
     local num = startnum
     for _,item in ipairs(items) do
@@ -7747,6 +11350,7 @@ end)()
   end
 
   function self.definitionlist(items,tight)
+    if not self.is_writing then return "" end
     local buffer = {}
     for _,item in ipairs(items) do
       buffer[#buffer + 1] = dlitem(item.term, item.definitions)
@@ -7793,6 +11397,7 @@ end)()
 % \end{markdown}
 %  \begin{macrocode}
   function self.blockquote(s)
+    if #util.rope_to_string(s) == 0 then return "" end
     return {"\\markdownRendererBlockQuoteBegin\n",s,
       "\n\\markdownRendererBlockQuoteEnd "}
   end
@@ -7806,6 +11411,7 @@ end)()
 % \end{markdown}
 %  \begin{macrocode}
   function self.verbatim(s)
+    if not self.is_writing then return "" end
     local name = util.cache(options.cacheDir, s, nil, nil, ".verbatim")
     return {"\\markdownRendererInputVerbatim{",name,"}"}
   end
@@ -7820,6 +11426,7 @@ end)()
 % \end{markdown}
 %  \begin{macrocode}
   function self.fencedCode(i, s)
+    if not self.is_writing then return "" end
     local name = util.cache(options.cacheDir, s, nil, nil, ".verbatim")
     return {"\\markdownRendererInputFencedCode{",name,"}{",i,"}"}
   end
@@ -7827,12 +11434,67 @@ end)()
 % \par
 % \begin{markdown}
 %
+% Define \luamdef{writer->active_headings} as a stack of identifiers
+% of the headings that are currently active.
+%
+% \end{markdown}
+%  \begin{macrocode}
+  self.active_headings = {}
+%    \end{macrocode}
+% \par
+% \begin{markdown}
+%
 % Define \luamdef{writer->heading} as a function that will transform an
-% input heading `s` at level `level` to the output format.
+% input heading `s` at level `level` with identifiers `identifiers` to the
+% output format.
 %
 % \end{markdown}
 %  \begin{macrocode}
-  function self.heading(s,level)
+  function self.heading(s,level,attributes)
+    local active_headings = self.active_headings
+    local slice_begin_type = self.slice_begin:sub(1, 1)
+    local slice_begin_identifier = self.slice_begin:sub(2) or ""
+    local slice_end_type = self.slice_end:sub(1, 1)
+    local slice_end_identifier = self.slice_end:sub(2) or ""
+
+    while #active_headings < level do
+      -- push empty identifiers for implied sections
+      table.insert(active_headings, {})
+    end
+
+    while #active_headings >= level do
+      -- pop identifiers for sections that have ended
+      local active_identifiers = active_headings[#active_headings]
+      if active_identifiers[slice_begin_identifier] ~= nil
+          and slice_begin_type == "$" then
+        self.is_writing = true
+      end
+      if active_identifiers[slice_end_identifier] ~= nil
+          and slice_end_type == "$" then
+        self.is_writing = false
+      end
+      table.remove(active_headings, #active_headings)
+    end
+
+    -- push identifiers for the new section
+    attributes = attributes or {}
+    local identifiers = {}
+    for index = 1, #attributes do
+      attribute = attributes[index]
+      identifiers[attribute:sub(2)] = true
+    end
+    if identifiers[slice_begin_identifier] ~= nil
+        and slice_begin_type == "^" then
+      self.is_writing = true
+    end
+    if identifiers[slice_end_identifier] ~= nil
+        and slice_end_type == "^" then
+      self.is_writing = false
+    end
+    table.insert(active_headings, identifiers)
+
+    if not self.is_writing then return "" end
+
     local cmd
     if level == 1 then
       cmd = "\\markdownRendererHeadingOne"
@@ -7934,6 +11596,8 @@ parsers.lparent                = P("(")
 parsers.rparent                = P(")")
 parsers.lbracket               = P("[")
 parsers.rbracket               = P("]")
+parsers.lbrace                 = P("{")
+parsers.rbrace                 = P("}")
 parsers.circumflex             = P("^")
 parsers.slash                  = P("/")
 parsers.equal                  = P("=")
@@ -8000,6 +11664,22 @@ parsers.nonemptyline           = parsers.line - parsers.blankline
 parsers.chunk                  = parsers.line * (parsers.optionallyindentedline
                                                 - parsers.blankline)^0
 
+parsers.css_identifier_char    = R("AZ", "az", "09") + S("-_")
+parsers.css_identifier         = (parsers.hash + parsers.period)
+                               * (((parsers.css_identifier_char
+                                   - parsers.dash - parsers.digit)
+                                  * parsers.css_identifier_char^1)
+                                 + (parsers.dash
+                                   * (parsers.css_identifier_char
+                                     - parsers.digit)
+                                   * parsers.css_identifier_char^0))
+parsers.attribute_name_char    = parsers.any - parsers.space
+                               - parsers.squote - parsers.dquote
+                               - parsers.more - parsers.slash
+                               - parsers.equal
+parsers.attribute_value_char   = parsers.any - parsers.dquote
+                               - parsers.more
+
 -- block followed by 0 or more optionally
 -- indented blocks with first line indented.
 parsers.indented_blocks = function(bl)
@@ -8284,9 +11964,8 @@ parsers.citation_body_postnote
 parsers.citation_body_chunk
                     = parsers.citation_body_prenote
                     * parsers.spnl * parsers.citation_name
-                    * ((parsers.internal_punctuation - parsers.semicolon)
-                      * parsers.spnl)^-1
-                    * parsers.citation_body_postnote
+                    * (parsers.internal_punctuation - parsers.semicolon)^-1
+                    * parsers.spnl * parsers.citation_body_postnote
 
 parsers.citation_body
                     = parsers.citation_body_chunk
@@ -8437,7 +12116,7 @@ parsers.inlinehtml  = parsers.emptyelt_any
 % \par
 % \begin{markdown}
 %
-%#### Parsers Used for \textsc{html} entities
+%#### Parsers Used for \textsc{html} Entities
 %
 % \end{markdown}
 %  \begin{macrocode}
@@ -8540,6 +12219,18 @@ parsers.dlchunk = Cs(parsers.line * (parsers.indentedline - parsers.blankline)^0
 %
 % \end{markdown}
 %  \begin{macrocode}
+parsers.heading_attribute = C(parsers.css_identifier)
+                          + C((parsers.attribute_name_char
+                             - parsers.rbrace)^1
+                             * parsers.equal
+                             * (parsers.attribute_value_char
+                               - parsers.rbrace)^1)
+parsers.HeadingAttributes = parsers.lbrace
+                          * parsers.heading_attribute
+                          * (parsers.spacechar^1
+                            * parsers.heading_attribute)^0
+                          * parsers.rbrace
+
 -- parse Atx heading start and return level
 parsers.HeadingStart = #parsers.hash * C(parsers.hash^-6)
                      * -parsers.hash / length
@@ -9147,6 +12838,9 @@ function M.reader.new(writer, options)
   local function ordered_list(items,tight,startNumber)
     if options.startNumber then
       startNumber = tonumber(startNumber) or 1  -- fallback for '#'
+      if startNumber ~= nil then
+        startNumber = math.floor(startNumber)
+      end
     else
       startNumber = nil
     end
@@ -9203,18 +12897,63 @@ function M.reader.new(writer, options)
 % \end{markdown}
 %  \begin{macrocode}
   -- parse atx header
-  larsers.AtxHeading = Cg(parsers.HeadingStart,"level")
-                     * parsers.optionalspace
-                     * (C(parsers.line) / strip_atx_end / parse_inlines)
-                     * Cb("level")
-                     / writer.heading
-
-  -- parse setext header
-  larsers.SetextHeading = #(parsers.line * S("=-"))
-                        * Ct(parsers.line / parse_inlines)
-                        * parsers.HeadingLevel
-                        * parsers.optionalspace * parsers.newline
-                        / writer.heading
+  if options.headerAttributes then
+    larsers.AtxHeading = Cg(parsers.HeadingStart,"level")
+                       * parsers.optionalspace
+                       * (C(((parsers.linechar
+                             - ((parsers.hash^1
+                                * parsers.optionalspace
+                                * parsers.HeadingAttributes^-1
+                                + parsers.HeadingAttributes)
+                               * parsers.optionalspace
+                               * parsers.newline))
+                            * (parsers.linechar
+                              - parsers.hash
+                              - parsers.lbrace)^0)^1)
+                           / parse_inlines)
+                       * Cg(Ct(parsers.newline
+                              + (parsers.hash^1
+                                * parsers.optionalspace
+                                * parsers.HeadingAttributes^-1
+                                + parsers.HeadingAttributes)
+                              * parsers.optionalspace
+                              * parsers.newline), "attributes")
+                       * Cb("level")
+                       * Cb("attributes")
+                       / writer.heading
+
+    larsers.SetextHeading = #(parsers.line * S("=-"))
+                          * (C(((parsers.linechar
+                                - (parsers.HeadingAttributes
+                                  * parsers.optionalspace
+                                  * parsers.newline))
+                               * (parsers.linechar
+                                 - parsers.lbrace)^0)^1)
+                              / parse_inlines)
+                          * Cg(Ct(parsers.newline
+                                 + (parsers.HeadingAttributes
+                                   * parsers.optionalspace
+                                   * parsers.newline)), "attributes")
+                          * parsers.HeadingLevel
+                          * Cb("attributes")
+                          * parsers.optionalspace
+                          * parsers.newline
+                          / writer.heading
+  else
+    larsers.AtxHeading = Cg(parsers.HeadingStart,"level")
+                       * parsers.optionalspace
+                       * (C(parsers.line) / strip_atx_end / parse_inlines)
+                       * Cb("level")
+                       / writer.heading
+
+    larsers.SetextHeading = #(parsers.line * S("=-"))
+                          * Ct(parsers.linechar^1 / parse_inlines)
+                          * parsers.newline
+                          * parsers.HeadingLevel
+                          * parsers.optionalspace
+                          * parsers.newline
+                          / writer.heading
+  end
 
   larsers.Heading = larsers.AtxHeading + larsers.SetextHeading
 %    \end{macrocode}
@@ -9229,9 +12968,7 @@ function M.reader.new(writer, options)
     { "Blocks",
 
       Blocks                = larsers.Blank^0 * parsers.Block^-1
-                            * (larsers.Blank^0 / function()
-                                                   return writer.interblocksep
-                                                 end
+                            * (larsers.Blank^0 / writer.interblocksep
                               * parsers.Block)^0
                             * larsers.Blank^0 * parsers.eof,
 
@@ -9573,7 +13310,7 @@ end
 \def\markdownRendererBlockQuoteBeginPrototype{\par\begingroup\it}%
 \def\markdownRendererBlockQuoteEndPrototype{\endgroup\par}%
 \def\markdownRendererInputVerbatimPrototype#1{%
-  \par{\tt\input"#1"\relax{}}\par}%
+  \par{\tt\input#1\relax{}}\par}%
 \def\markdownRendererInputFencedCodePrototype#1#2{%
   \markdownRendererInputVerbatimPrototype{#1}}%
 \def\markdownRendererHeadingOnePrototype#1{#1}%
@@ -9639,6 +13376,9 @@ end
 \ifx\markdownOptionHashEnumerators\undefined\else
   hashEnumerators = \markdownOptionHashEnumerators,
 \fi
+\ifx\markdownOptionHeaderAttributes\undefined\else
+  headerAttributes = \markdownOptionHeaderAttributes,
+\fi
 \ifx\markdownOptionHtml\undefined\else
   html = \markdownOptionHtml,
 \fi
@@ -9651,6 +13391,9 @@ end
 \ifx\markdownOptionPreserveTabs\undefined\else
   preserveTabs = \markdownOptionPreserveTabs,
 \fi
+\ifx\markdownOptionSlice\undefined\else
+  slice = "\markdownOptionSlice",
+\fi
 \ifx\markdownOptionSmartEllipses\undefined\else
   smartEllipses = \markdownOptionSmartEllipses,
 \fi
@@ -9755,7 +13498,7 @@ local convert = md.new(\markdownLuaOptions)
 % \end{markdown}
 %  \begin{macrocode}
     |immediate|openout|markdownOutputFileStream@
-      |markdownOptionInputTempFileName@
+      |markdownOptionInputTempFileName|relax@
     |markdownInfo{Buffering markdown input into the temporary @
       input file "|markdownOptionInputTempFileName" and scanning @
       for the closing token sequence "#1"}@
@@ -9878,7 +13621,7 @@ local convert = md.new(\markdownLuaOptions)
 % \ref{sec:directlua} are meant to be indistinguishable to the remaining code.
 %
 % The package assumes that although the user is not using the Lua\TeX{} engine,
-% their TeX distribution contains it, and uses shell access to produce and
+% their \TeX{} distribution contains it, and uses shell access to produce and
 % execute Lua scripts using the \TeX{}Lua interpreter~[@luatex17, Section
 % 3.1.1].
 %
@@ -10097,7 +13840,9 @@ local convert = md.new(\markdownLuaOptions)
     |closein|markdownInputFileStream
     |markdownLuaExecute{%
       |markdownPrepare
-      local input = assert(io.open("#1", "r"):read("*a"))
+      local input = assert(io.open("%
+        |markdownOptionOutputDir
+        /#1", "r"):read("*a"))
 %    \end{macrocode}
 % \begin{markdown}
 % Since the Lua converter expects \acro{unix} line endings, normalize the
@@ -10396,23 +14141,172 @@ local convert = md.new(\markdownLuaOptions)
 % \begin{markdown}
 %
 % There is a basic implementation for citations that uses the \LaTeX{} \m{cite}
-% macro. There is also a more advanced implementation that uses the Bib\LaTeX{}
-% \m{autocites} and \m{textcites} macros. This implementation will be used, when
-% Bib\LaTeX{} is loaded.
+% macro. There are also implementations that use the \pkg{natbib} \m{citep},
+% and \m{citet} macros, and the Bib\LaTeX{} \m{autocites} and \m{textcites}
+% macros. These implementations will be used, when the respective packages are
+% loaded.
 %
 % \end{markdown}
 %  \begin{macrocode}
 \newcount\markdownLaTeXCitationsCounter
 
 % Basic implementation
-\def\markdownLaTeXBasicCitations#1#2#3#4{%
+\def\markdownLaTeXBasicCitations#1#2#3#4#5#6{%
   \advance\markdownLaTeXCitationsCounter by 1\relax
-  \ifx\relax#2\relax\else#2~\fi\cite[#3]{#4}%
-  \ifnum\markdownLaTeXCitationsCounter>\markdownLaTeXCitationsTotal\relax
-    \expandafter\@gobble
-  \fi\markdownLaTeXBasicCitations}
+  \ifx\relax#4\relax
+    \ifx\relax#5\relax
+      \ifnum\markdownLaTeXCitationsCounter>\markdownLaTeXCitationsTotal\relax
+        \cite{#1#2#6}%  Without prenotes and postnotes, just accumulate cites
+        \expandafter\expandafter\expandafter
+        \expandafter\expandafter\expandafter\expandafter
+        \@gobblethree
+      \fi
+    \else%  Before a postnote (#5), dump the accumulator
+      \ifx\relax#1\relax\else
+        \cite{#1}%
+      \fi
+      \cite[#5]{#6}%
+      \ifnum\markdownLaTeXCitationsCounter>\markdownLaTeXCitationsTotal\relax
+      \else
+        \expandafter\expandafter\expandafter
+        \expandafter\expandafter\expandafter\expandafter
+        \expandafter\expandafter\expandafter
+        \expandafter\expandafter\expandafter\expandafter
+        \markdownLaTeXBasicCitations
+      \fi
+      \expandafter\expandafter\expandafter
+      \expandafter\expandafter\expandafter\expandafter{%
+      \expandafter\expandafter\expandafter
+      \expandafter\expandafter\expandafter\expandafter}%
+      \expandafter\expandafter\expandafter
+      \expandafter\expandafter\expandafter\expandafter{%
+      \expandafter\expandafter\expandafter
+      \expandafter\expandafter\expandafter\expandafter}%
+      \expandafter\expandafter\expandafter
+      \@gobblethree
+    \fi
+  \else%  Before a prenote (#4), dump the accumulator
+    \ifx\relax#1\relax\else
+      \cite{#1}%
+    \fi
+    \ifnum\markdownLaTeXCitationsCounter>1\relax
+      \space  % Insert a space before the prenote in later citations
+    \fi
+    #4~\expandafter\cite\ifx\relax#5\relax{#6}\else[#5]{#6}\fi
+    \ifnum\markdownLaTeXCitationsCounter>\markdownLaTeXCitationsTotal\relax
+    \else
+      \expandafter\expandafter\expandafter
+      \expandafter\expandafter\expandafter\expandafter
+      \markdownLaTeXBasicCitations
+    \fi
+    \expandafter\expandafter\expandafter{%
+    \expandafter\expandafter\expandafter}%
+    \expandafter\expandafter\expandafter{%
+    \expandafter\expandafter\expandafter}%
+    \expandafter
+    \@gobblethree
+  \fi\markdownLaTeXBasicCitations{#1#2#6},}
 \let\markdownLaTeXBasicTextCitations\markdownLaTeXBasicCitations
 
+% Natbib implementation
+\def\markdownLaTeXNatbibCitations#1#2#3#4#5{%
+  \advance\markdownLaTeXCitationsCounter by 1\relax
+  \ifx\relax#3\relax
+    \ifx\relax#4\relax
+      \ifnum\markdownLaTeXCitationsCounter>\markdownLaTeXCitationsTotal\relax
+        \citep{#1,#5}%  Without prenotes and postnotes, just accumulate cites
+        \expandafter\expandafter\expandafter
+        \expandafter\expandafter\expandafter\expandafter
+        \@gobbletwo
+      \fi
+    \else%  Before a postnote (#4), dump the accumulator
+      \ifx\relax#1\relax\else
+        \citep{#1}%
+      \fi
+      \citep[][#4]{#5}%
+      \ifnum\markdownLaTeXCitationsCounter>\markdownLaTeXCitationsTotal\relax
+      \else
+        \expandafter\expandafter\expandafter
+        \expandafter\expandafter\expandafter\expandafter
+        \expandafter\expandafter\expandafter
+        \expandafter\expandafter\expandafter\expandafter
+        \markdownLaTeXNatbibCitations
+      \fi
+      \expandafter\expandafter\expandafter
+      \expandafter\expandafter\expandafter\expandafter{%
+      \expandafter\expandafter\expandafter
+      \expandafter\expandafter\expandafter\expandafter}%
+      \expandafter\expandafter\expandafter
+      \@gobbletwo
+    \fi
+  \else%  Before a prenote (#3), dump the accumulator
+    \ifx\relax#1\relax\relax\else
+      \citep{#1}%
+    \fi
+    \citep[#3][#4]{#5}%
+    \ifnum\markdownLaTeXCitationsCounter>\markdownLaTeXCitationsTotal\relax
+    \else
+      \expandafter\expandafter\expandafter
+      \expandafter\expandafter\expandafter\expandafter
+      \markdownLaTeXNatbibCitations
+    \fi
+    \expandafter\expandafter\expandafter{%
+    \expandafter\expandafter\expandafter}%
+    \expandafter
+    \@gobbletwo
+  \fi\markdownLaTeXNatbibCitations{#1,#5}}
+\def\markdownLaTeXNatbibTextCitations#1#2#3#4#5{%
+  \advance\markdownLaTeXCitationsCounter by 1\relax
+  \ifx\relax#3\relax
+    \ifx\relax#4\relax
+      \ifnum\markdownLaTeXCitationsCounter>\markdownLaTeXCitationsTotal\relax
+        \citet{#1,#5}%  Without prenotes and postnotes, just accumulate cites
+        \expandafter\expandafter\expandafter
+        \expandafter\expandafter\expandafter\expandafter
+        \@gobbletwo
+      \fi
+    \else%  After a prenote or a postnote, dump the accumulator
+      \ifx\relax#1\relax\else
+        \citet{#1}%
+      \fi
+      , \citet[#3][#4]{#5}%
+      \ifnum\markdownLaTeXCitationsCounter<\markdownLaTeXCitationsTotal\relax
+        ,
+      \else
+        \ifnum\markdownLaTeXCitationsCounter=\markdownLaTeXCitationsTotal\relax
+          ,
+        \fi
+      \fi
+      \expandafter\expandafter\expandafter
+      \expandafter\expandafter\expandafter\expandafter
+      \markdownLaTeXNatbibTextCitations
+      \expandafter\expandafter\expandafter
+      \expandafter\expandafter\expandafter\expandafter{%
+      \expandafter\expandafter\expandafter
+      \expandafter\expandafter\expandafter\expandafter}%
+      \expandafter\expandafter\expandafter
+      \@gobbletwo
+    \fi
+  \else%  After a prenote or a postnote, dump the accumulator
+    \ifx\relax#1\relax\relax\else
+      \citet{#1}%
+    \fi
+    , \citet[#3][#4]{#5}%
+    \ifnum\markdownLaTeXCitationsCounter<\markdownLaTeXCitationsTotal\relax
+      ,
+    \else
+      \ifnum\markdownLaTeXCitationsCounter=\markdownLaTeXCitationsTotal\relax
+        ,
+      \fi
+    \fi
+    \expandafter\expandafter\expandafter
+    \markdownLaTeXNatbibTextCitations
+    \expandafter\expandafter\expandafter{%
+    \expandafter\expandafter\expandafter}%
+    \expandafter
+    \@gobbletwo
+  \fi\markdownLaTeXNatbibTextCitations{#1,#5}}
+
 % BibLaTeX implementation
 \def\markdownLaTeXBibLaTeXCitations#1#2#3#4#5{%
   \advance\markdownLaTeXCitationsCounter by 1\relax
@@ -10432,8 +14326,19 @@ local convert = md.new(\markdownLuaOptions)
     \markdownLaTeXCitationsCounter=1%
     \def\markdownLaTeXCitationsTotal{#1}%
     \ifx\autocites\undefined
-      \expandafter
-      \markdownLaTeXBasicCitations
+      \ifx\citep\undefined
+        \expandafter\expandafter\expandafter
+        \markdownLaTeXBasicCitations
+        \expandafter\expandafter\expandafter{%
+        \expandafter\expandafter\expandafter}%
+        \expandafter\expandafter\expandafter{%
+        \expandafter\expandafter\expandafter}%
+      \else
+        \expandafter\expandafter\expandafter
+        \markdownLaTeXNatbibCitations
+        \expandafter\expandafter\expandafter{%
+        \expandafter\expandafter\expandafter}%
+      \fi
     \else
       \expandafter\expandafter\expandafter
       \markdownLaTeXBibLaTeXCitations
@@ -10442,9 +14347,20 @@ local convert = md.new(\markdownLuaOptions)
   textCite = {%
     \markdownLaTeXCitationsCounter=1%
     \def\markdownLaTeXCitationsTotal{#1}%
-    \ifx\textcites\undefined
-      \expandafter
-      \markdownLaTeXBasicTextCitations
+    \ifx\autocites\undefined
+      \ifx\citep\undefined
+        \expandafter\expandafter\expandafter
+        \markdownLaTeXBasicTextCitations
+        \expandafter\expandafter\expandafter{%
+        \expandafter\expandafter\expandafter}%
+        \expandafter\expandafter\expandafter{%
+        \expandafter\expandafter\expandafter}%
+      \else
+        \expandafter\expandafter\expandafter
+        \markdownLaTeXNatbibTextCitations
+        \expandafter\expandafter\expandafter{%
+        \expandafter\expandafter\expandafter}%
+      \fi
     \else
       \expandafter\expandafter\expandafter
       \markdownLaTeXBibLaTeXTextCitations
@@ -10517,7 +14433,8 @@ local convert = md.new(\markdownLuaOptions)
 % When buffering user input, we should disable the bytes with the high bit set,
 % since these are made active by the \m{enableregime} macro. We will do this
 % by redefining the \m{markdownMakeOther} macro accordingly. The code is
-% courtesy of Scott Pakin, the creator of the \pkg{filecontents} LaTeX package.
+% courtesy of Scott Pakin, the creator of the \pkg{filecontents} \LaTeX{}
+% package.
 %
 % \end{markdown}
 %  \begin{macrocode}
diff --git a/Master/texmf-dist/source/generic/markdown/markdown.ins b/Master/texmf-dist/source/generic/markdown/markdown.ins
index 0965a974b78..b7436c37fcf 100644
--- a/Master/texmf-dist/source/generic/markdown/markdown.ins
+++ b/Master/texmf-dist/source/generic/markdown/markdown.ins
@@ -8,5 +8,8 @@
           \file{t-markdown.tex}{\from{markdown.dtx}{context}}
           \usepreamble\empty\usepostamble\empty
           \file{markdown.md}{\from{markdown.dtx}{manual}}
+          \file{markdown-interfaces.md}{\from{markdown.dtx}{manual-interfaces}}
+          \file{markdown-options.md}{\from{markdown.dtx}{manual-options}}
+          \file{markdown-tokens.md}{\from{markdown.dtx}{manual-tokens}}
           \file{markdown.css}{\from{markdown.dtx}{manual-css}}}
 \endbatchfile