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doc: add reST primer (inital / WIP)

Browse Source 
preview: https://return42.github.io/searx/dev/reST.html

includes:

- :class: rst-example // admonitions with (rendered) reST markup example
- extlinks to docutils

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
This commit is contained in:
Markus Heiser 2019-12-19 17:05:50 +01:00
parent 2b4526916d
commit bee19a76f7
5 changed files with 544 additions and 3 deletions
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42
docs/_themes/searx/static/searx.css vendored
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@ -28,3 +28,45 @@ p.sidebar-title, .sidebar p {
list-style-type: disclosure-closed; list-style-type: disclosure-closed;
} }
/* admonitions with (rendered) reST markup examples (:class: rst-example)
*
* .. admonition:: title of the example
* :class: rst-example
* ....
/* navigation menu: use sans font and select light/dark colors for better
* contrast.
*/
div.rst-example {
padding-left: 12px;
padding-right: 12px;
background-color: white;
transform: scale(0.9);
transition: transform 1s;
}
/* div.rst-example > .admonition-title { */
/* background-color: inherit; */
/* color: inherit; */
/* } */
/* div.rst-example > .admonition-title:after{ */
/* font-family: inherit; */
/* font-style: italic; */
/* content: " // hover mouse over .."; */
/* } */
@media screen {
div.rst-example:hover {
transform: scale(1);
background-color: inherit;
padding-left: inherit;
padding-right: inherit;
border-left: inherit;
}
div.rst-example:hover > .admonition-title {
display: none;
}
}

11
docs/conf.py
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@ -14,6 +14,7 @@ project = u'searx'
copyright = u'2015-2019, Adam Tauber, Noémi Ványi' copyright = u'2015-2019, Adam Tauber, Noémi Ványi'
author = u'Adam Tauber' author = u'Adam Tauber'
release, version = VERSION_STRING, VERSION_STRING release, version = VERSION_STRING, VERSION_STRING
highlight_language = 'none'
# General -------------------------------------------------------------- # General --------------------------------------------------------------
@ -34,6 +35,12 @@ extlinks['search'] = (SEARX_URL + '/%s', '#')
extlinks['docs'] = (DOCS_URL + '/%s', 'docs: ') extlinks['docs'] = (DOCS_URL + '/%s', 'docs: ')
extlinks['pypi'] = ('https://pypi.org/project/%s', 'PyPi: ') extlinks['pypi'] = ('https://pypi.org/project/%s', 'PyPi: ')
extlinks['man'] = ('https://manpages.debian.org/jump?q=%s', '') extlinks['man'] = ('https://manpages.debian.org/jump?q=%s', '')
extlinks['duref'] = (
'http://docutils.sourceforge.net/docs/ref/rst/restructuredtext.html#%s', '')
extlinks['durole'] = (
'http://docutils.sourceforge.net/docs/ref/rst/roles.html#%s', '')
extlinks['dudir'] = (
'http://docutils.sourceforge.net/docs/ref/rst/directives.html#%s', '')
extensions = [ extensions = [
'sphinx.ext.extlinks', 'sphinx.ext.extlinks',
@ -46,9 +53,9 @@ extensions = [
intersphinx_mapping = { intersphinx_mapping = {
"python": ("https://docs.python.org/3/", None), "python": ("https://docs.python.org/3/", None),
# "flask": ("https://flask.palletsprojects.com/", None), "flask": ("https://flask.palletsprojects.com/", None),
# "werkzeug": ("https://werkzeug.palletsprojects.com/", None), # "werkzeug": ("https://werkzeug.palletsprojects.com/", None),
# "jinja": ("https://jinja.palletsprojects.com/", None), "jinja": ("https://jinja.palletsprojects.com/", None),
} }
issues_github_path = "asciimoo/searx" issues_github_path = "asciimoo/searx"

1
docs/dev/index.rst
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@ -12,3 +12,4 @@ Developer documentation
plugins plugins
translation translation
makefile makefile
reST

2
docs/dev/makefile.rst
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@ -81,7 +81,7 @@ and release a ``make pyenv``:
With target ``pyenv`` a development environment (aka virtualenv) was build up in With target ``pyenv`` a development environment (aka virtualenv) was build up in
``./local/py3/``. To make a *developer install* of searx (:origin:`setup.py`) ``./local/py3/``. To make a *developer install* of searx (:origin:`setup.py`)
into this environment make target ``install`` into this environment, use make target ``install``:
.. code:: sh .. code:: sh

491
docs/dev/reST.rst Normal file
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@ -0,0 +1,491 @@
.. _reST primer:
===========
reST primer
===========
.. sidebar:: KISS_ and readability_
Instead of defining more and more roles, we at searx encourage our
contributors to follow principles like KISS_ and readability_.
We at searx are using reStructuredText (aka reST_) markup for all kind of
documentation, with the builders from the Sphinx_ project a HTML output is
generated and deployed at :docs:`github.io <.>`.
The sources of Searx's documentation are located at :origin:`docs`. Run
:ref:`make docs-live <make docs-live>` to build HTML while editing.
------
.. contents:: Contents
:depth: 3
:local:
:backlinks: entry
Sphinx_ and reST_ have their place in the python ecosystem. Over that reST is
used in popular projects, e.g the Linux kernel documentation `[kernel doc]`_.
.. _[kernel doc]: https://www.kernel.org/doc/html/latest/doc-guide/sphinx.html
.. sidebar:: Content matters
The readability_ of the reST sources has its value, therefore we recommend to
make sparse usage of reST markup / .. content matters!
**reST** is a plaintext markup language, its markup is *mostly* intuitive and
you will not need to learn much to produce well formed articles with. I use the
word *mostly*: like everything in live, reST has its advantages and
disadvantages, some markups feel a bit grumpy (especially if you are used to
other plaintext markups).
Soft skills
===========
Before going any deeper into the markup let's face on some **soft skills** a
trained author brings with, to reach a well feedback from readers:
- Documentation is dedicated to an audience and answers questions from the
audience point of view.
- Don't detail things which are general knowledge from the audience point of
view.
- Limit the subject, use cross links for any further reading.
To be more concrete what a *point of view* means. In the (:origin:`docs`)
folder we have three sections (and the *blog* folder), each dedicate to a
different group of audience.
.. sidebar:: Further reading
- Sphinx-Primer_
- `Sphinx markup constructs`_
- reST_, docutils_, `docutils FAQ`_
- Sphinx_, `sphinx-doc FAQ`_
- `sphinx config`_, doctree_
- `sphinx cross references`_
- intersphinx_
- `Sphinx's autodoc`_
- `Sphinx's Python domain`_, `Sphinx's C domain`_
User's POV: :origin:`docs/user`
A typical user knows about search engines and might have heard about
meta crawlers and privacy.
Admin's POV: :origin:`docs/admin`
A typical Admin knows about setting up services on a linux system, but he does
not know all the pros and cons of a searx setup.
Developer's POV: :origin:`docs/dev`
Depending on the readability_ of code, a typical developer is able to read and
understand source code. Describe what a item aims to do (e.g. a function),
describe chronological order matters, describe it. Name the *out-of-limits
condition* and all the side effects a external developer will not know.
.. _reST inline markup:
Basic inline markup
===================
``*italics*`` -- *italics*
one asterisk for emphasis
``**boldface**`` -- **boldface**
two asterisks for strong emphasis and
````foo()```` -- ``foo()``
backquotes for code samples and literals.
``\*foo is a pointer`` -- \*foo is a pointer
If asterisks or backquotes appear in running text and could be confused with
inline markup delimiters, they have to be escaped with a backslash (``\*foo is
a pointer``).
Roles
=====
A *custom interpreted text role* (:duref:`ref <roles>`) is an inline piece of
explicit markup. It signifies that that the enclosed text should be interpreted
in a specific way. The general syntax is ``:rolename:`content```.
Docutils supports the following roles:
* :durole:`emphasis` -- equivalent of ``*emphasis*``
* :durole:`strong` -- equivalent of ``**strong**``
* :durole:`literal` -- equivalent of ````literal````
* :durole:`subscript` -- subscript text
* :durole:`superscript` -- superscript text
* :durole:`title-reference` -- for titles of books, periodicals, and other
materials
Refer to `Sphinx Roles`_ for roles added by Sphinx.
Anchors & Links
===============
.. _reST anchor:
Anchors
-------
.. _ref role:
https://www.sphinx-doc.org/en/master/usage/restructuredtext/roles.html#role-ref
To refer a point in the documentation a anchor is needed. The :ref:`reST
template <reST template>` shows an example where a chapter titled *"Chapters"*
gets an anchor named ``chapter title``. Another example from *this* document,
where the anchor named ``reST anchor``:
.. code:: reST
.. _reST anchor:
Anchors
-------
To refer a point in the documentation a anchor is needed ...
To refer anchors use the `ref role`_ markup:
.. code:: reST
Visit chapter :ref:`reST anchor`.
Or set hyperlink text manualy :ref:`foo bar <reST anchor>`.
.. admonition:: ``:ref:`` role
:class: rst-example
Visist chapter :ref:`reST anchor`
Or set hyperlink text manualy :ref:`foo bar <reST anchor>`.
.. _reST ordinary ref:
link ordinary URL
-----------------
If you need to reference external URLs use *named* hyperlinks to maintain
readability of reST sources. Here is a example taken from *this* article:
.. code:: reST
.. _Sphinx Field Lists:
https://www.sphinx-doc.org/en/master/usage/restructuredtext/field-lists.html
With the *named* hyperlink `Sphinx Field Lists`_, the raw text is much more
readable.
And this shows the alternative (less readable) hyperlink markup `Sphinx Field
Lists
<https://www.sphinx-doc.org/en/master/usage/restructuredtext/field-lists.html>`__.
.. admonition:: Named hyperlink
:class: rst-example
With the *named* hyperlink `Sphinx Field Lists`_, the raw text is much more
readable.
And this shows the alternative (less readable) hyperlink markup `Sphinx Field
Lists
<https://www.sphinx-doc.org/en/master/usage/restructuredtext/field-lists.html>`__.
.. _reST smart ref:
smart references
----------------
With the power of sphinx.ext.extlinks_ and intersphinx_ referencing external
content becomes smart. To refer ...
sphinx.ext.extlinks_:
:project's wiki article: :wiki:`Searx-instances`
:to docs public URL: :docs:`dev/reST.html`
:files & folders from origin: :origin:`docs/dev/reST.rst`
:a pull request: :pull:`1756`
:a patch: :patch:`af2cae6`
:a PyPi package: :pypi:`searx`
:a manual page man: :man:`bash`
.. code:: reST
:project's wiki article: :wiki:`Searx-instances`
:to docs public URL: :docs:`dev/reST.html`
:files & folders from origin: :origin:`docs/dev/reST.rst`
:a pull request: :pull:`1756`
:a patch: :patch:`af2cae6`
:a PyPi package: :pypi:`searx`
:a manual page man: :man:`bash`
intersphinx_:
:external anchor: :ref:`python:and`
:external doc anchor: :doc:`jinja:templates`
:python code object: :py:obj:`datetime.datetime`
:flask code object: webapp is a :py:obj:`flask.Flask` app
.. code:: reST
:external anchor: :ref:`python:and`
:external doc anchor: :doc:`jinja:templates`
:python code object: :py:obj:`datetime.datetime`
:flask code object: webapp is a :py:obj:`flask.Flask` app
Intersphinx is configured in :origin:`docs/conf.py`:
.. code:: python
intersphinx_mapping = {
"python": ("https://docs.python.org/3/", None),
"flask": ("https://flask.palletsprojects.com/", None),
"jinja": ("https://jinja.palletsprojects.com/", None),
}
To list all anchors of the inventory (e.g. ``python``) use:
.. code:: sh
$ python -m sphinx.ext.intersphinx https://docs.python.org/3/objects.inv
.. _reST basic structure:
Basic article structure
=======================
The basic structure of an article makes use of heading adornments to markup
chapter, sections and subsections.
#. ``=`` with overline for document title
#. ``=`` for chapters
#. ``-`` for sections
#. ``~`` for subsections
.. _reST template:
.. admonition:: reST template
:class: rst-example
.. code:: reST
.. _document title:
==============
Document title
==============
Lorem ipsum dolor sit amet, consectetur adipisici elit ..
Further read :ref:`chapter title`.
.. _chapter title:
Chapters
========
Ut enim ad minim veniam, quis nostrud exercitation ullamco
laboris nisi ut aliquid ex ea commodi consequat ...
Section
-------
lorem ..
Subsection
~~~~~~~~~~
lorem ..
.. _reST lists:
List markups
============
Bullet list
-----------
List markup (:duref:`ref <bullet-lists>`) is simple:
.. code:: reST
- This is a bulleted list.
1. Nested lists are possible, but be aware that they must be separated from
the parent list items by blank line
2. Second item of nested list
- It has two items, the second
item uses two lines.
#. This is a numbered list.
#. It has two items too.
.. admonition:: bullet list
:class: rst-example
- This is a bulleted list.
1. Nested lists are possible, but be aware that they must be separated from
the parent list items by blank line
2. Second item of nested list
- It has two items, the second
item uses two lines.
#. This is a numbered list.
#. It has two items too.
Definition list
---------------
.. sidebar:: definition term
Note that the term cannot have more than one line of text.
Definition lists (:duref:`ref <definition-lists>`) are created as follows:
.. code:: reST
term (up to a line of text)
Definition of the term, which must be indented
and can even consist of multiple paragraphs
next term
Description.
.. admonition:: definition list
:class: rst-example
term (up to a line of text)
Definition of the term, which must be indented
and can even consist of multiple paragraphs
next term
Description.
Quoted paragraphs
-----------------
Quoted paragraphs (:duref:`ref <block-quotes>`) are created by just indenting
them more than the surrounding paragraphs. Line blocks (:duref:`ref
<line-blocks>`) are a way of preserving line breaks:
.. code:: reST
normal paragraph ...
lorem ipsum.
Quoted paragraph ...
lorem ipsum.
| These lines are
| broken exactly like in
| the source file.
.. admonition:: Quoted paragraph and line block
:class: rst-example
normal paragraph ...
lorem ipsum.
Quoted paragraph ...
lorem ipsum.
| These lines are
| broken exactly like in
| the source file.
.. _reST field list:
Field Lists
-----------
.. _Sphinx Field Lists:
https://www.sphinx-doc.org/en/master/usage/restructuredtext/field-lists.html
.. sidebar:: bibliographic fields
First lines fields are bibliographic fields, see `Sphinx Field Lists`_.
Field lists are used as part of an extension syntax, such as options for
directives, or database-like records meant for further processing. Field lists
are mappings from field names to field bodies. They marked up like this:
.. code:: reST
:fieldname: Field content
:foo: first paragraph in field foo
second paragraph in field foo
:bar: Field content
.. admonition:: Field List
:class: rst-example
:fieldname: Field content
:foo: first paragraph in field foo
second paragraph in field foo
:bar: Field content
They are commonly used in Python documentation:
.. code:: python
def my_function(my_arg, my_other_arg):
"""A function just for me.
:param my_arg: The first of my arguments.
:param my_other_arg: The second of my arguments.
:returns: A message (just for me, of course).
"""
Further list blocks
-------------------
- field lists (:duref:`ref <field-lists>`, with caveats noted in
:ref:`reST field list`)
- option lists (:duref:`ref <option-lists>`)
- quoted literal blocks (:duref:`ref <quoted-literal-blocks>`)
- doctest blocks (:duref:`ref <doctest-blocks>`)
.. _KISS: https://en.wikipedia.org/wiki/KISS_principle
.. _readability: https://docs.python-guide.org/writing/style/
.. _Sphinx-Primer:
http://www.sphinx-doc.org/en/master/usage/restructuredtext/basics.html
.. _reST: https://docutils.sourceforge.io/rst.html
.. _Sphinx Roles:
https://www.sphinx-doc.org/en/master/usage/restructuredtext/roles.html
.. _Sphinx: http://www.sphinx-doc.org
.. _`sphinx-doc FAQ`: http://www.sphinx-doc.org/en/stable/faq.html
.. _Sphinx markup constructs:
http://www.sphinx-doc.org/en/stable/markup/index.html
.. _`sphinx cross references`:
http://www.sphinx-doc.org/en/stable/markup/inline.html#cross-referencing-arbitrary-locations
.. _sphinx.ext.extlinks:
https://www.sphinx-doc.org/en/master/usage/extensions/extlinks.html
.. _intersphinx: http://www.sphinx-doc.org/en/stable/ext/intersphinx.html
.. _sphinx config: http://www.sphinx-doc.org/en/stable/config.html
.. _Sphinx's autodoc: http://www.sphinx-doc.org/en/stable/ext/autodoc.html
.. _Sphinx's Python domain:
http://www.sphinx-doc.org/en/stable/domains.html#the-python-domain
.. _Sphinx's C domain:
http://www.sphinx-doc.org/en/stable/domains.html#cross-referencing-c-constructs
.. _doctree:
http://www.sphinx-doc.org/en/master/extdev/tutorial.html?highlight=doctree#build-phases
.. _docutils: http://docutils.sourceforge.net/docs/index.html
.. _docutils FAQ: http://docutils.sourceforge.net/FAQ.html