forked from zaclys/searxng
docs: reST-primer first proofreading (WIP)
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
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Markus Heiser
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@ -28,6 +28,9 @@ The sources of Searx's documentation are located at :origin:`docs`. Run
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- intersphinx_
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- `Sphinx's autodoc`_
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- `Sphinx's Python domain`_, `Sphinx's C domain`_
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- SVG_, ImageMagick_
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- DOT_, `Graphviz's dot`_, Graphviz_
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.. contents:: Contents
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:depth: 3
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@ -76,9 +79,9 @@ Admin's POV: :origin:`docs/admin`
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Developer's POV: :origin:`docs/dev`
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Depending on the readability_ of code, a typical developer is able to read and
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understand source code. Describe what a item aims to do (e.g. a function),
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describe chronological order matters, describe it. Name the *out-of-limits
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condition* and all the side effects a external developer will not know.
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understand source code. Describe what a item aims to do (e.g. a function).
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If the chronological order matters, describe it. Name the *out-of-limits
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conditions* and all the side effects a external developer will not know.
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.. _reST inline markup:
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@ -298,6 +301,12 @@ Refer to `Sphinx Roles`_ for roles added by Sphinx.
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Figures & Images
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================
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.. sidebar:: Image processing
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With the directives from :ref:`linuxdoc <linuxdoc:kfigure>` the build process
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is flexible. To get best results in the generated output format, install
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ImageMagick_ and Graphviz_.
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Searx's sphinx setup includes: :ref:`linuxdoc:kfigure`. Scalable here means;
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scalable in sense of the build process. Normally in absence of a converter
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tool, the build process will break. From the authors POV it’s annoying to care
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@ -307,36 +316,44 @@ continues and scales output quality in dependence of installed image processors.
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If you want to add an image, you should use the ``kernel-figure`` and
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``kernel-image`` directives. E.g. to insert a figure with a scalable image
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format use SVG (:ref:`svg_image_example`):
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format use SVG (:ref:`svg image example`):
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.. code:: reST
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.. _svg image example:
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.. kernel-figure:: svg_image.svg
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:alt: simple SVG image
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:alt: SVG image example
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SVG image example
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simple SVG image
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To refer the figure, a caption block is needed: :ref:`svg image example`.
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.. _svg image example:
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.. kernel-figure:: svg_image.svg
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:alt: simple SVG image
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:alt: SVG image example
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SVG image example
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simple SVG image
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To refer the figure, a caption block is needed: :ref:`svg image example`.
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DOT files (aka Graphviz)
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------------------------
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The kernel figure (and image) directive support **DOT** formated files, see
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With :ref:`linuxdoc:kernel-figure` reST support for **DOT** formatted files is
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given.
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* DOT: http://graphviz.org/pdf/dotguide.pdf
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* Graphviz: http://www.graphviz.org/content/dot-language
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- `Graphviz's dot`_
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- DOT_
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- Graphviz_
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A simple example (:ref:`hello_dot_file`):
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A simple example is shown in :ref:`dot file example`:
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.. code:: reST
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.. _dot file example:
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.. kernel-figure:: hello.dot
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:alt: hello world
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@ -345,6 +362,8 @@ A simple example (:ref:`hello_dot_file`):
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.. admonition:: hello.dot
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:class: rst-example
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.. _dot file example:
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.. kernel-figure:: hello.dot
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:alt: hello world
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@ -354,47 +373,54 @@ A simple example (:ref:`hello_dot_file`):
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---------------------
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Embed *render* markups (or languages) like Graphviz's **DOT** is provided by the
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``kernel-render`` directives.
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:ref:`linuxdoc:kernel-render` directive. A simple example of embedded DOT_ is
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shown in figure :ref:`dot render example`:
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.. code:: reST
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.. code-block:: rst
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.. kernel-render:: DOT markup
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:alt: foobar digraph
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:caption: Embedded **DOT** (Graphviz) code
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digraph foo {
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"bar" -> "baz";
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}
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How this will be rendered depends on the installed tools. If Graphviz is
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installed, you will see an vector image. If not the raw markup is inserted as
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*literal-block* (:ref:`hello_dot_render`).
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.. admonition:: DOT markup
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:class: rst-example
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.. _hello_dot_render:
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.. _dot render example:
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.. kernel-render:: DOT
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:alt: foobar digraph
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:caption: Embedded **DOT** (Graphviz) code
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:alt: digraph
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:caption: Embedded DOT (Graphviz) code
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digraph foo {
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"bar" -> "baz";
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}
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The *render* directive has all the options known from the *figure* directive,
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plus option ``caption``. If ``caption`` has a value, a *figure* node is
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inserted. If not, a *image* node is inserted. A ``caption`` is also needed, if
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you want to refer it (:ref:`hello_svg_render`).
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Attribute ``caption`` is needed, if you want to refer the figure: :ref:`dot
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render example`.
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Please note :ref:`build tools <linuxdoc:kfigure_build_tools>`. If Graphviz_ is
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installed, you will see an vector image. If not, the raw markup is inserted as
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*literal-block*.
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.. admonition:: kernel-render DOT
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:class: rst-example
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.. _dot render example:
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.. kernel-render:: DOT
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:alt: digraph
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:caption: Embedded DOT (Graphviz) code
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digraph foo {
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"bar" -> "baz";
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}
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Attribute ``caption`` is needed, if you want to refer the figure: :ref:`dot
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render example`.
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``kernel-render`` SVG
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---------------------
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.. code:: reST
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A simple example of embedded SVG_ is shown in figure :ref:`svg render example`:
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.. kernel-render:: SVG markup
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.. code-block:: rst
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.. _svg render example:
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.. kernel-render:: SVG
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:caption: Embedded **SVG** markup
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:alt: so-nw-arrow
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..
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@ -402,29 +428,45 @@ you want to refer it (:ref:`hello_svg_render`).
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.. code:: xml
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<?xml version="1.0" encoding="UTF-8"?>
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<svg xmlns="http://www.w3.org/2000/svg"
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version="1.1" baseProfile="full" width="70px" height="40px" viewBox="0 0 700 400">
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<line x1="180" y1="370" x2="500" y2="50" stroke="black" stroke-width="15px"/>
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<polygon points="585 0 525 25 585 50" transform="rotate(135 525 25)"/>
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<svg xmlns="http://www.w3.org/2000/svg" version="1.1"
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baseProfile="full" width="70px" height="40px"
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viewBox="0 0 700 400"
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>
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<line x1="180" y1="370"
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x2="500" y2="50"
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stroke="black" stroke-width="15px"
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/>
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<polygon points="585 0 525 25 585 50"
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transform="rotate(135 525 25)"
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/>
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</svg>
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.. admonition:: SVG markup
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.. admonition:: kernel-render SVG
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:class: rst-example
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.. _hello_svg_render:
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.. _svg render example:
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.. kernel-render:: SVG
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:caption: Embedded **SVG** markup
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:alt: so-nw-arrow
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<?xml version="1.0" encoding="UTF-8"?>
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<svg xmlns="http://www.w3.org/2000/svg"
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version="1.1" baseProfile="full" width="70px" height="40px" viewBox="0 0 700 400">
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<line x1="180" y1="370" x2="500" y2="50" stroke="black" stroke-width="15px"/>
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<polygon points="585 0 525 25 585 50" transform="rotate(135 525 25)"/>
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<svg xmlns="http://www.w3.org/2000/svg" version="1.1"
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baseProfile="full" width="70px" height="40px"
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viewBox="0 0 700 400"
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>
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<line x1="180" y1="370"
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x2="500" y2="50"
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stroke="black" stroke-width="15px"
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/>
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<polygon points="585 0 525 25 585 50"
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transform="rotate(135 525 25)"
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/>
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</svg>
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.. _reST lists:
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List markups
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@ -684,3 +726,9 @@ Admonitions: :dudir:`hint`, :dudir:`note`, :dudir:`tip` :dudir:`attention`,
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.. _docutils: http://docutils.sourceforge.net/docs/index.html
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.. _docutils FAQ: http://docutils.sourceforge.net/FAQ.html
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.. _linuxdoc: https://return42.github.io/linuxdoc
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.. _SVG: https://www.w3.org/TR/SVG11/expanded-toc.html
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.. _DOT: https://graphviz.gitlab.io/_pages/doc/info/lang.html
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.. _`Graphviz's dot`: https://graphviz.gitlab.io/_pages/pdf/dotguide.pdf
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.. _Graphviz: https://graphviz.gitlab.io
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.. _ImageMagick: https://www.imagemagick.org
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