[docs] Employ sphinxcontrib.luadomain

docs/requirements.txt

@@ -1 +1,2 @@
 Sphinx >= 3
+sphinxcontrib-luadomain

docs/source/conf.py

@@ -16,7 +16,7 @@ release = '2.4.2'
 # Add any Sphinx extension module names here, as strings.
 # They can be extensions coming with Sphinx (named 'sphinx.ext.*')
 # or your custom ones.
-extensions = ['sphinx.ext.extlinks']
+extensions = ['sphinx.ext.extlinks', 'sphinxcontrib.luadomain']
 extlinks = {'github': ('https://github.com/%s', '@')}
 
 # Add any paths that contain templates here, relative to this directory.

docs/source/usage-awesome.rst

@@ -1,7 +1,7 @@
 Usage within Awesome
 ====================
 
-To use Vicious with Awesome, install the package from your operating system
+To use Vicious with awesome_, install the package from your operating system
 provider, or download the source code and move it to your awesome
 configuration directory in ``$XDG_CONFIG_HOME`` (usually ``~/.config``)::
 
@@ -18,99 +18,123 @@ Then add the following to the top of your ``rc.lua``:
 
    local vicious = require("vicious")
 
-Register a Widget
+vicious.register
------------------
+----------------
 
-Once you create a widget (a textbox, graph or a progressbar) call
+Once you create a widget (a textbox, graph or a progressbar),
-``vicious.register()`` to register it with Vicious::
+call ``vicious.register`` to register it with Vicious:
 
-   vicious.register(widget, wtype, format, interval, warg)
+.. lua:function:: vicious.register(widget, wtype, format, interval, warg)
 
-``widget``
+   Register a widget.
-   Awesome_ widget created with ``widget()`` or ``awful.widget()``
-   (in case of a graph or a progressbar).
 
-``wtype`` of type Vicious widget or ``function``
+   :param widget: awesome widget created from
-   * Vicious widget type: any of the available (default, or custom)
+                  ``awful.widget`` or ``wibox.widget``
-     [widget type provided by Vicious](#widgets).
-   * function: custom function from your own *Awesome* configuration can be
-     registered as widget types (see [Custom widget types](#custom-widget)).
 
-``format`` of type ``string`` or ``function``
+   :param wtype:
-   * string: ``$key`` will be replaced by respective value in the table ``t``
+      either of
-     returned by the widget type. I.e. use ``$1``, ``$2``, etc. to retrieve data
-     from an integer-indexed table (a.k.a. array); ``${foo bar}`` will be
-     substituted by ``t["{foo bar}"]``.
-   * ``function (widget, args)`` can be used to manipulate data returned by the
-     widget type (see [Format functions](#format-func)).
 
-``interval``
+      * Vicious widget type: any widget type
-   Number of seconds between updates of the widget (default: 2).
+        :ref:`provided by Vicious <widgets>` or customly defined.
-   Read section :ref:`caching` for more information.
+      * ``function``: custom function from your own
+        awesome configuration can be registered as widget types
+        (see [Custom widget types](#custom-widget)).
 
-``warg``
+   :param format:
-   Arguments to be passed to widget types, e.g. the battery ID.
+      either of
+
+      * string: ``$key`` will be replaced by respective value in the table
+        ``t`` returned by the widget type, i.e. use ``$1``, ``$2``, etc.
+        to retrieve data from an integer-indexed table (a.k.a. array);
+        ``${foo bar}`` will be substituted by ``t["{foo bar}"]``.
+      * ``function (widget, args)`` can be used to manipulate data returned
+        by the widget type (see [Format functions](#format-func)).
+
+   :param interval: number of seconds between updates of the widget
+                    (default: 2).  See :ref:`caching` for more information.
+
+   :param warg: arguments to be passed to widget types, e.g. the battery ID.
 
 ``vicious.register`` alone is not much different from awful.widget.watch_,
 which has been added to Awesome since version 4.0.  However, Vicious offers
 more advanced control of widgets' behavior by providing the following functions.
 
-Unregister a Widget
+vicious.unregister
--------------------
+------------------
 
-::
+.. lua:function:: vicious.unregister(widget, keep)
 
-   vicious.unregister(widget, keep)
+   Unregister a widget.
 
-If ``keep == true``, ``widget`` will be suspended and wait for activation.
+   :param widget: awesome widget created from
+                  ``awful.widget`` or ``wibox.widget``
+   :param keep: if true suspend ``widget`` and wait for activation
+   :type keep: bool
 
-Suspend All Widgets
+vicious.suspend
--------------------
+---------------
 
-::
+.. lua:function:: vicious.suspend()
 
-   vicious.suspend()
+   Suspend all widgets.
 
 See `example automation script`_ for the "laptop-mode-tools" start-stop module.
 
-Restart Suspended Widgets
+vicious.activate
--------------------------
+----------------
 
-::
+.. lua:function:: vicious.activate([widget])
 
-   vicious.activate(widget)
+   Restart suspended widget(s).
 
-If ``widget`` is provided only that widget will be activated.
+   :param widget: if provided only that widget will be activated
 
-Enable Caching of a Widget Type
+vicious.cache
--------------------------------
+-------------
 
-::
+.. lua:function:: vicious.cache(wtype)
-
-   vicious.cache(wtype)
 
    Enable caching of values returned by a widget type.
 
-Force update of widgets
+vicious.force
------------------------
+--------------
 
-::
+.. lua:function:: vicious.force(wtable)
 
-   vicious.force(wtable)
+   Force update of given widgets.
 
-where ``wtable`` is a table of one or more widgets to be updated.
+   :param wtable: table of one or more widgets to be updated
 
-Get Data from a Widget
+vicious.call
-----------------------
+------------
 
-::
+.. lua:function:: vicious.call(wtype, format, warg)
 
-   vicious.call(wtype, format, warg)
+   Fetch data from the widget type to use it outside of the widget
-
-Fetch data from ``wtype`` to use it outside from the wibox
    ([example](#call-example)).
 
-.. _Awesome: https://awesomewm.org/
+   :param wtype:
+      either of
+
+      * Vicious widget type: any widget type
+        :ref:`provided by Vicious <widgets>` or customly defined.
+      * ``function``: custom function from your own
+        awesome configuration can be registered as widget types
+        (see [Custom widget types](#custom-widget)).
+
+   :param format:
+      either of
+
+      * string: ``$key`` will be replaced by respective value in the table
+        ``t`` returned by the widget type, i.e. use ``$1``, ``$2``, etc.
+        to retrieve data from an integer-indexed table (a.k.a. array);
+        ``${foo bar}`` will be substituted by ``t["{foo bar}"]``.
+      * ``function (widget, args)`` can be used to manipulate data returned
+        by the widget type (see [Format functions](#format-func)).
+
+   :param warg: arguments to be passed to widget types, e.g. the battery ID.
+
+.. _awesome: https://awesomewm.org/
 .. _awful.widget.watch:
    https://awesomewm.org/doc/api/classes/awful.widget.watch.html
 .. _example automation script:

docs/source/widgets.rst

@@ -1,9 +1,12 @@
+.. _widgets:
+
 Officially Supported Widget Types
 =================================
 
-Widget types consist of worker functions that take two arguments ``format`` and
+Widget types consist of worker functions that take two arguments
-``warg`` (in that order), which were previously passed to ``vicious.register``,
+``format`` and ``warg`` (in that order), which were previously
-and return a table of values to be formatted by ``format``.
+passed to :lua:func:`vicious.register`, and return a table of values
+to be formatted by ``format``.
 
 vicious.widgets.bat
 -------------------