Sphinx cross reference what goes in angle brackets? - python-sphinx

I see a lot of examples like
:ref:`code <target to code>`
in the Sphinx documentation, but I can't find where it defines what code and <target to code> mean. Perhaps one of them is an implicit or explicit target and the other is the path to a file??
If someone can give me examples of how to cross reference a title in a specific .rst file?
From Adding a cross-reference to a subheading or anchor in another page I know how to use the :any role, but not how to do a :ref: to a specific file.

From the documentation for Cross-referencing syntax:
Cross-references are generated by many semantic interpreted text roles. Basically, you only need to write
:role:`target`
and a link will be created to the item named target of the type indicated by role. The link’s text will be the same as target.
There are some additional facilities, however, that make cross-referencing roles more versatile:
You may supply an explicit title and reference target, like in reST direct hyperlinks:
:role:`title <target>`
will refer to target, but the link text will be title.
Note that sometimes title is also called label, depending on context.

Related

Is it possible to write only specific directives to an XML file

I'm rather new to Sphinx and ReST and I've "inherited" a big project.
The documentation consists of hundreds of pages with how to's, etc. There are several files (one for each class) where the respective functions are described using the ".. py:function::" directive.
So each of these pages is basically like this:
Some description text explaining the class
py:function:: class.myFunction(param1, param2)
parameter description
code example, ...
py:function:: class.myFunction2
parameter description
code example, ...
Now, I'd like to list all functions of all different pages in one single XML file, if possible grouped by their class, but without the descriptions and examples. Is this possible with some built-in Sphinx parser or do I have to write my own? Or is there any other directive or config option that may be helpful?
The XML file should be like this:
<class1>
<function1>
<param1>
<param2>
...
<function2>
...
<class2>
<function1>
...
I found ViewLists and the Parsing directive in the Sphinx documentation but i'm not sure how to correctly use them and if that's the solution to my problem.

reStructuredText sphinx link to another document's anchor [duplicate]

How to insert a cross-reference in a reST/Sphinx page to either a sub-header or anchor in another page in the same documentation set?
The expression "reST/Sphinx" makes the scope of the question unclear. Is it about reStructuredText in general and Sphinx, or only about reStructuredText as used in Sphinx (and not reStructuredText in general)? I'm going to cover both since people using RST are likely to run into both cases at some point:
Sphinx
Besides the domain-specific directives that can be used to link to various entities like classes (:class:) there's the general :ref: directive, documented here. They give this example:
.. _my-reference-label:
Section to cross-reference
--------------------------
This is the text of the section.
It refers to the section itself, see :ref:`my-reference-label`.
Although the general hyperlinking mechanism offered by RST does work in Sphinx, the documentation recommends against using it when using Sphinx:
Using ref is advised over standard reStructuredText links to sections (like Section title_) because it works across files, when section headings are changed, and for all builders that support cross-references.
RST, in General
The tools that convert RST files to HTML do not necessarily have a notion of collection. This is the case for instance if you rely on github to convert RST files to HTML or if you use a command line tool like rst2html. Unfortunately, the various methods to use to get the desired result vary depending on which tool you are using. For instance, if you use rst2html and you want file A.rst to link to a section named "Section" in file other.rst and you want the final HTML to work in a browser, then A.rst would contain:
`This <other.html#section>`__ is a reference to a section in another
file, which works with ``rst2html``. Unfortunately, it does not work
when the HTML is generated through github.
You have to link to the final HTML file and you have to know what the id given to the section will be. If you want to do the same for a file served through github:
`This <other.rst#section>`__ is a reference to a section in another
file, which works on github. Unfortunately, it does not work when you
use ``rst2html``.
Here too you need to know the id given to the section. However, you link to the RST file because it is only upon accessing the RST file that the HTML is created. (At the time of writing this answer, accessing the HTML directly is not allowed.)
A complete example is available here.
New, better answer for 2016!
The autosection extension lets you do this easily.
=============
Some Document
=============
Internal Headline
=================
then, later...
===============
Some Other Doc
===============
A link- :ref:`Internal Headline`
This extension is built-in, so all you need is to edit conf.py
extensions = [
.
. other
. extensions
. already
. listed
.
'sphinx.ext.autosectionlabel',
]
The only thing you have to be careful of is that now you can't duplicate internal headlines across the doc collection. (Worth it.)
Example:
Hey, read the :ref:`Installation:Homebrew` section.
where Homebrew is a section inside a different document named Installation.rst.
This uses the autosection feature, so will need to edit config.py with the following:
extensions = [
'sphinx.ext.autosectionlabel'
]
autosectionlabel_prefix_document = True
In Sphinx 3.0.3 the only solution that worked for me is :any: (see https://www.sphinx-doc.org/en/1.5/markup/inline.html#cross-referencing-anything).
Suppose, one document has such a section:
.. _my-section:
My Section
----------
Lorem ipsum blablabla
Then another document can have the following fragment to create a link:
See :any:`my-section` for the details
I was struggling to make this work and i found out that the actual notation is :ref:'{dir-path}/Installation:Homebrew' where {dir-path} is the relative path to Installation.rst from where config.py exists
Adding description of behavior that was confusing to me.
Section titles must be referenced with the file name (overview here) in front of it:
overview.rst:
************
API Overview
************
index.rst:
:ref:`overview:API Overview`
However, when referencing links, the file name (constants here) must not be there:
constants.rst:
.. _section-constants:
*******************
Enums and Constants
*******************
api.rst:
:ref:`section-constants`
Also, for this to work, one must enable extension 'autosectionlabel':
conf.py:
extensions = [
...
"sphinx.ext.autosectionlabel"
]

Automatic generation of index from label and ref

Is it possible to get Sphinx to generate the index based on existing labels and :ref: in the text? Say if you have a label:
.. _my_label:
My Section
and later refer to it through multiple :ref:`my_label` , is there a way to get the equivalent of an automatic generation of:
.. index:: My Section
where the label is, and the same before the paragraph where the :ref: lives?
The official doc does not list labels or :ref: as index-generating markup and I could not find any extension doing it. But maybe there is one?
There's an official list of Sphinx extensions, and there are a few lists of unoffical extensions on Github but none of them implement the functionality specified in the question.
The closest approach to the problem specified in the question would be using autosectionlabel to automatically create a target label having the section name, and place an :index: or .. index:: adjacent to the reST section to place it in the index. However, this would only save having to declare the label, declaring the index entry would still be necessary.
The functionality (directive) you ask for provides little tangible gain beyond writing one less line or block of reST code (the .. index:: directive or :index: role), be it for sections or targets.
Sphinx being open source would allow implementing a custom directive for this, however using a non-standard directive having as only aim shortening standard syntax by a single construct would stand to create more difficulty than gain for readers of your source code.

use of roles in asciidoctor macros?

I'm trying to create a simple macro to render a text item in red in asciidoctor.
The following does not work:
:redtext: [red]#some important text in red that occurs a lot#
{redtext}
or for an even simpler example:
:redcross: [red]#✘#
I am not clear on the rules for what can and cannot be substituted by a macro. The asciidoctor manual has a blank space for macros at present (http://asciidoctor.org/docs/user-manual/#macros). The asciidoc manual (http://www.methods.co.nz/asciidoc/chunked/ch21.html) isn't that clear either but may not apply to asciidoctor anyway.
A related unanswered question is Resuable markup fragments with Asciidoctor.
A related question to that suggests using includes which is overkill for this.
What are the limitations of macros?
What you have defined is not a macro, it's an attribute. (When you use it, it's called an attribute reference).
You can perform substitution eagerly in the definition of an attribute using the inline pass macro. In the target position, it accepts a comma-separated list of substitution names (or substitution letters).
In your case, you can write:
:redtext: pass:q[[red]#some important text in red that occurs a lot#]
The relevant part is:
pass:q[...]
See substitutions in an attribute entry for details.
I think includes work well enough. We have a single glossary.asciidoc file to contain all the re-usable snippets, for example:
tag::redtext[]
[red]#some important text in red that occurs a lot#
end::redtext[]
In index.asciidoc you can add a little helper:
:g: glossary.asciidoc
Then wherever you need this snippet:
include::{g}[tag=redtext]

Adding a cross-reference to a subheading or anchor in another page

How to insert a cross-reference in a reST/Sphinx page to either a sub-header or anchor in another page in the same documentation set?
The expression "reST/Sphinx" makes the scope of the question unclear. Is it about reStructuredText in general and Sphinx, or only about reStructuredText as used in Sphinx (and not reStructuredText in general)? I'm going to cover both since people using RST are likely to run into both cases at some point:
Sphinx
Besides the domain-specific directives that can be used to link to various entities like classes (:class:) there's the general :ref: directive, documented here. They give this example:
.. _my-reference-label:
Section to cross-reference
--------------------------
This is the text of the section.
It refers to the section itself, see :ref:`my-reference-label`.
Although the general hyperlinking mechanism offered by RST does work in Sphinx, the documentation recommends against using it when using Sphinx:
Using ref is advised over standard reStructuredText links to sections (like Section title_) because it works across files, when section headings are changed, and for all builders that support cross-references.
RST, in General
The tools that convert RST files to HTML do not necessarily have a notion of collection. This is the case for instance if you rely on github to convert RST files to HTML or if you use a command line tool like rst2html. Unfortunately, the various methods to use to get the desired result vary depending on which tool you are using. For instance, if you use rst2html and you want file A.rst to link to a section named "Section" in file other.rst and you want the final HTML to work in a browser, then A.rst would contain:
`This <other.html#section>`__ is a reference to a section in another
file, which works with ``rst2html``. Unfortunately, it does not work
when the HTML is generated through github.
You have to link to the final HTML file and you have to know what the id given to the section will be. If you want to do the same for a file served through github:
`This <other.rst#section>`__ is a reference to a section in another
file, which works on github. Unfortunately, it does not work when you
use ``rst2html``.
Here too you need to know the id given to the section. However, you link to the RST file because it is only upon accessing the RST file that the HTML is created. (At the time of writing this answer, accessing the HTML directly is not allowed.)
A complete example is available here.
New, better answer for 2016!
The autosection extension lets you do this easily.
=============
Some Document
=============
Internal Headline
=================
then, later...
===============
Some Other Doc
===============
A link- :ref:`Internal Headline`
This extension is built-in, so all you need is to edit conf.py
extensions = [
.
. other
. extensions
. already
. listed
.
'sphinx.ext.autosectionlabel',
]
The only thing you have to be careful of is that now you can't duplicate internal headlines across the doc collection. (Worth it.)
Example:
Hey, read the :ref:`Installation:Homebrew` section.
where Homebrew is a section inside a different document named Installation.rst.
This uses the autosection feature, so will need to edit config.py with the following:
extensions = [
'sphinx.ext.autosectionlabel'
]
autosectionlabel_prefix_document = True
In Sphinx 3.0.3 the only solution that worked for me is :any: (see https://www.sphinx-doc.org/en/1.5/markup/inline.html#cross-referencing-anything).
Suppose, one document has such a section:
.. _my-section:
My Section
----------
Lorem ipsum blablabla
Then another document can have the following fragment to create a link:
See :any:`my-section` for the details
I was struggling to make this work and i found out that the actual notation is :ref:'{dir-path}/Installation:Homebrew' where {dir-path} is the relative path to Installation.rst from where config.py exists
Adding description of behavior that was confusing to me.
Section titles must be referenced with the file name (overview here) in front of it:
overview.rst:
************
API Overview
************
index.rst:
:ref:`overview:API Overview`
However, when referencing links, the file name (constants here) must not be there:
constants.rst:
.. _section-constants:
*******************
Enums and Constants
*******************
api.rst:
:ref:`section-constants`
Also, for this to work, one must enable extension 'autosectionlabel':
conf.py:
extensions = [
...
"sphinx.ext.autosectionlabel"
]

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