pelican-theme/docs/settings.rst

Settings
########

Pelican is configurable thanks to a configuration file you can pass to
the command line::

    $ pelican -s path/to/your/settingsfile.py path

Settings are configured in the form of a Python module (a file). You can see an
example by looking at `/samples/pelican.conf.py
<https://github.com/getpelican/pelican/raw/master/samples/pelican.conf.py>`_

All the setting identifiers must be set in all-caps, otherwise they will not be
processed. Setting values that are numbers (5, 20, etc.), booleans (True,
False, None, etc.), dictionaries, or tuples should *not* be enclosed in
quotation marks. All other values (i.e., strings) *must* be enclosed in
quotation marks.

Unless otherwise specified, settings that refer to paths can be either absolute
or relative to the configuration file.

The settings you define in the configuration file will be passed to the
templates, which allows you to use your settings to add site-wide content.

Here is a list of settings for Pelican:

Basic settings
==============

=====================================================================   =====================================================================
Setting name (default value)                                            What does it do?
=====================================================================   =====================================================================
`AUTHOR`                                                                Default author (put your name)
`DATE_FORMATS` (``{}``)                                                 If you manage multiple languages, you can set the date formatting
                                                                        here. See the "Date format and locales" section below for details.
`USE_FOLDER_AS_CATEGORY` (``True``)                                     When you don't specify a category in your post metadata, set this
                                                                        setting to ``True``, and organize your articles in subfolders, the
                                                                        subfolder will become the category of your post. If set to ``False``,
                                                                        ``DEFAULT_CATEGORY`` will be used as a fallback.
`DEFAULT_CATEGORY` (``'misc'``)                                         The default category to fall back on.
`DEFAULT_DATE_FORMAT` (``'%a %d %B %Y'``)                               The default date format you want to use.
`DISPLAY_PAGES_ON_MENU` (``True``)                                      Whether to display pages on the menu of the
                                                                        template. Templates may or may not honor this
                                                                        setting.
`DISPLAY_CATEGORIES_ON_MENU` (``True``)                                 Whether to display categories on the menu of the
                                                                        template. Templates may or not honor this
                                                                        setting.
`DEFAULT_DATE` (``None``)                                               The default date you want to use.
                                                                        If ``fs``, Pelican will use the file system
                                                                        timestamp information (mtime) if it can't get
                                                                        date information from the metadata.
                                                                        If set to a tuple object, the default datetime object will instead
                                                                        be generated by passing the tuple to the
                                                                        ``datetime.datetime`` constructor.
`DEFAULT_METADATA` (``()``)                                             The default metadata you want to use for all articles
                                                                        and pages.
`FILENAME_METADATA` (``'(?P<date>\d{4}-\d{2}-\d{2}).*'``)               The regexp that will be used to extract any metadata
                                                                        from the filename. All named groups that are matched
                                                                        will be set in the metadata object.
                                                                        The default value will only extract the date from
                                                                        the filename.
                                                                        For example, if you would like to extract both the
                                                                        date and the slug, you could set something like:
                                                                        ``'(?P<date>\d{4}-\d{2}-\d{2})_(?P<slug>.*)'``.
                                                                        See :ref:`path_metadata`.
`PATH_METADATA` (``''``)                                                Like ``FILENAME_METADATA``, but parsed from a page's
                                                                        full path relative to the content source directory.
                                                                        See :ref:`path_metadata`.
`EXTRA_PATH_METADATA` (``{}``)                                          Extra metadata dictionaries keyed by relative path.
                                                                        See :ref:`path_metadata`.
`DELETE_OUTPUT_DIRECTORY` (``False``)                                   Delete the output directory, and **all** of its contents, before
                                                                        generating new files. This can be useful in preventing older,
                                                                        unnecessary files from persisting in your output. However, **this is
                                                                        a destructive setting and should be handled with extreme care.**
`OUTPUT_RETENTION` (``()``)                                             A tuple of filenames that should be retained and not deleted from the
                                                                        output directory. One use case would be the preservation of version
                                                                        control data. For example: ``(".hg", ".git", ".bzr")``
`JINJA_EXTENSIONS` (``[]``)                                             A list of any Jinja2 extensions you want to use.
`JINJA_FILTERS` (``{}``)                                                A list of custom Jinja2 filters you want to use.
                                                                        The dictionary should map the filtername to the filter function.
                                                                        For example: ``{'urlencode': urlencode_filter}``
                                                                        See `Jinja custom filters documentation`_.
`LOCALE` (''[#]_)                                                       Change the locale. A list of locales can be provided
                                                                        here or a single string representing one locale.
                                                                        When providing a list, all the locales will be tried
                                                                        until one works.
`READERS` (``{}``)                                                      A dict of file extensions / Reader classes to overwrite or
                                                                        add file readers. for instance, to avoid processing .html files:
                                                                        ``READERS = {'html': None}``. Or to add a custom reader for the
                                                                        `foo` extension: ``READERS = {'foo': FooReader}``
`IGNORE_FILES` (``['.#*']``)                                            A list of file globbing patterns to match against the
                                                                        source files to be ignored by the processor. For example,
                                                                        the default ``['.#*']`` will ignore emacs lock files.
`MD_EXTENSIONS` (``['codehilite(css_class=highlight)','extra']``)       A list of the extensions that the Markdown processor
                                                                        will use. Refer to the Python Markdown documentation's
                                                                        `Extensions section <http://pythonhosted.org/Markdown/extensions/>`_
                                                                        for a complete list of supported extensions. (Note that
                                                                        defining this in your settings file will override and
                                                                        replace the default values. If your goal is to *add*
                                                                        to the default values for this setting, you'll need to
                                                                        include them explicitly and enumerate the full list of
                                                                        desired Markdown extensions.)
`OUTPUT_PATH` (``'output/'``)                                           Where to output the generated files.
`PATH` (``None``)                                                       Path to content directory to be processed by Pelican.
`PAGE_DIR` (``'pages'``)                                                Directory to look at for pages, relative to `PATH`.
`PAGE_EXCLUDES` (``()``)                                                A list of directories to exclude when looking for pages.
`ARTICLE_DIR` (``''``)                                                  Directory to look at for articles, relative to `PATH`.
`ARTICLE_EXCLUDES`: (``('pages',)``)                                    A list of directories to exclude when looking for articles.
`PDF_GENERATOR` (``False``)                                             Set to ``True`` if you want PDF versions of your documents to be.
                                                                        generated. You will need to install ``rst2pdf``.
`OUTPUT_SOURCES` (``False``)                                            Set to True if you want to copy the articles and pages in their
                                                                        original format (e.g. Markdown or reStructuredText) to the
                                                                        specified OUTPUT_PATH.
`OUTPUT_SOURCES_EXTENSION` (``.text``)                                  Controls the extension that will be used by the SourcesGenerator.
                                                                        Defaults to ``.text``. If not a valid string the default value
                                                                        will be used.
`RELATIVE_URLS` (``False``)                                             Defines whether Pelican should use document-relative URLs or
                                                                        not. Only set this to ``True`` when developing/testing and only
                                                                        if you fully understand the effect it can have on links/feeds.
`PLUGINS` (``[]``)                                                      The list of plugins to load. See :ref:`plugins`.
`SITENAME` (``'A Pelican Blog'``)                                       Your site name
`SITEURL`                                                               Base URL of your website. Not defined by default,
                                                                        so it is best to specify your SITEURL; if you do not, feeds
                                                                        will not be generated with properly-formed URLs. You should
                                                                        include ``http://`` and your domain, with no trailing
                                                                        slash at the end. Example: ``SITEURL = 'http://mydomain.com'``
`TEMPLATE_PAGES` (``None``)                                             A mapping containing template pages that will be rendered with
                                                                        the blog entries. See :ref:`template_pages`.
`STATIC_PATHS` (``['images']``)                                         The static paths you want to have accessible
                                                                        on the output path "static". By default,
                                                                        Pelican will copy the "images" folder to the
                                                                        output folder.
`TIMEZONE`                                                              The timezone used in the date information, to
                                                                        generate Atom and RSS feeds. See the *Timezone*
                                                                        section below for more info.
`TYPOGRIFY` (``False``)                                                 If set to True, several typographical improvements will be
                                                                        incorporated into the generated HTML via the `Typogrify
                                                                        <http://static.mintchaos.com/projects/typogrify/>`_
                                                                        library, which can be installed via: ``pip install typogrify``
`DIRECT_TEMPLATES` (``('index', 'tags', 'categories', 'archives')``)    List of templates that are used directly to render
                                                                        content. Typically direct templates are used to generate
                                                                        index pages for collections of content (e.g., tags and
                                                                        category index pages). If the tag and category collections
                                                                        are not needed, set ``DIRECT_TEMPLATES = ('index', 'archives')``
`PAGINATED_DIRECT_TEMPLATES` (``('index',)``)                           Provides the direct templates that should be paginated.
`SUMMARY_MAX_LENGTH` (``50``)                                           When creating a short summary of an article, this will
                                                                        be the default length in words of the text created.
                                                                        This only applies if your content does not otherwise
                                                                        specify a summary. Setting to ``None`` will cause the summary
                                                                        to be a copy of the original content.
`EXTRA_TEMPLATES_PATHS` (``[]``)                                        A list of paths you want Jinja2 to search for templates.
                                                                        Can be used to separate templates from the theme.
                                                                        Example: projects, resume, profile ...
                                                                        These templates need to use ``DIRECT_TEMPLATES`` setting.
`ASCIIDOC_OPTIONS` (``[]``)                                             A list of options to pass to AsciiDoc. See the `manpage
                                                                        <http://www.methods.co.nz/asciidoc/manpage.html>`_
`WITH_FUTURE_DATES` (``True``)                                          If disabled, content with dates in the future will get a
                                                                        default status of draft.
`INTRASITE_LINK_REGEX` (``'[{|](?P<what>.*?)[|}]'``)                    Regular expression that is used to parse internal links.  
                                                                        Default syntax of links to internal files, tags, etc. is 
                                                                        to enclose the identifier, say ``filename``, in ``{}`` or ``||``.
                                                                        Identifier between ``{`` and ``}`` goes into the ``what`` capturing group.
                                                                        For details see :ref:`ref-linking-to-internal-content`.
=====================================================================   =====================================================================

.. [#] Default is the system locale.


URL settings
------------

The first thing to understand is that there are currently two supported methods
for URL formation: *relative* and *absolute*. Document-relative URLs are useful
when testing locally, and absolute URLs are reliable and most useful when
publishing. One method of supporting both is to have one Pelican configuration
file for local development and another for publishing. To see an example of this
type of setup, use the ``pelican-quickstart`` script as described at the top of
the :doc:`Getting Started <getting_started>` page, which will produce two separate
configuration files for local development and publishing, respectively.

You can customize the URLs and locations where files will be saved. The URLs and
SAVE_AS variables use Python's format strings. These variables allow you to place
your articles in a location such as ``{slug}/index.html`` and link to them as
``{slug}`` for clean URLs. These settings give you the flexibility to place your
articles and pages anywhere you want.

.. note::
    If you specify a datetime directive, it will be substituted using the
    input files' date metadata attribute. If the date is not specified for a
    particular file, Pelican will rely on the file's mtime timestamp.

Check the Python datetime documentation at http://bit.ly/cNcJUC for more
information.

Also, you can use other file metadata attributes as well:

* slug
* date
* lang
* author
* category

Example usage:

* ARTICLE_URL = ``'posts/{date:%Y}/{date:%b}/{date:%d}/{slug}/'``
* ARTICLE_SAVE_AS = ``'posts/{date:%Y}/{date:%b}/{date:%d}/{slug}/index.html'``

This would save your articles in something like ``/posts/2011/Aug/07/sample-post/index.html``,
and the URL to this would be ``/posts/2011/Aug/07/sample-post/``.

Pelican can optionally create per-year, per-month, and per-day archives of your
posts. These secondary archives are disabled by default but are automatically
enabled if you supply format strings for their respective `_SAVE_AS` settings.
Period archives fit intuitively with the hierarchical model of web URLs and can
make it easier for readers to navigate through the posts you've written over time.

Example usage:

* YEAR_ARCHIVE_SAVE_AS = ``'posts/{date:%Y}/index.html'``
* MONTH_ARCHIVE_SAVE_AS = ``'posts/{date:%Y}/{date:%b}/index.html'``

With these settings, Pelican will create an archive of all your posts for the year
at (for instance) 'posts/2011/index.html', and an archive of all your posts for
the month at 'posts/2011/Aug/index.html'.

.. note::
    Period archives work best when the final path segment is 'index.html'.
    This way a reader can remove a portion of your URL and automatically
    arrive at an appropriate archive of posts, without having to specify
    a page name.

====================================================    =====================================================
Setting name (default value)                            What does it do?
====================================================    =====================================================
`ARTICLE_URL` (``'{slug}.html'``)                       The URL to refer to an ARTICLE.
`ARTICLE_SAVE_AS` (``'{slug}.html'``)                   The place where we will save an article.
`ARTICLE_LANG_URL` (``'{slug}-{lang}.html'``)           The URL to refer to an ARTICLE which doesn't use the
                                                        default language.
`ARTICLE_LANG_SAVE_AS` (``'{slug}-{lang}.html'``)       The place where we will save an article which
                                                        doesn't use the default language.
`PAGE_URL` (``'pages/{slug}.html'``)                    The URL we will use to link to a page.
`PAGE_SAVE_AS` (``'pages/{slug}.html'``)                The location we will save the page. This value has to be
                                                        the same as PAGE_URL or you need to use a rewrite in
                                                        your server config.
`PAGE_LANG_URL` (``'pages/{slug}-{lang}.html'``)        The URL we will use to link to a page which doesn't
                                                        use the default language.
`PAGE_LANG_SAVE_AS` (``'pages/{slug}-{lang}.html'``)    The location we will save the page which doesn't
                                                        use the default language.
`CATEGORY_URL` (``'category/{slug}.html'``)             The URL to use for a category.
`CATEGORY_SAVE_AS` (``'category/{slug}.html'``)         The location to save a category.
`TAG_URL` (``'tag/{slug}.html'``)                       The URL to use for a tag.
`TAG_SAVE_AS` (``'tag/{slug}.html'``)                   The location to save the tag page.
`TAGS_URL` (``'tags.html'``)                            The URL to use for the tag list.
`TAGS_SAVE_AS` (``'tags.html'``)                        The location to save the tag list.
`AUTHOR_URL` (``'author/{slug}.html'``)                 The URL to use for an author.
`AUTHOR_SAVE_AS` (``'author/{slug}.html'``)             The location to save an author.
`AUTHORS_URL` (``'authors.html'``)                      The URL to use for the author list.
`AUTHORS_SAVE_AS` (``'authors.html'``)                  The location to save the author list.
`<DIRECT_TEMPLATE_NAME>_SAVE_AS`                        The location to save content generated from direct
                                                        templates. Where <DIRECT_TEMPLATE_NAME> is the
                                                        upper case template name.
`ARCHIVES_SAVE_AS` (``'archives.html'``)                The location to save the article archives page.
`YEAR_ARCHIVE_SAVE_AS` (False)                          The location to save per-year archives of your
                                                        posts.
`MONTH_ARCHIVE_SAVE_AS` (False)                         The location to save per-month archives of your
                                                        posts.
`DAY_ARCHIVE_SAVE_AS` (False)                           The location to save per-day archives of your
                                                        posts.
`SLUG_SUBSTITUTIONS`  (``()``)                          Substitutions to make prior to stripping out
                                                        non-alphanumerics when generating slugs. Specified
                                                        as a list of 2-tuples of ``(from, to)`` which are
                                                        applied in order.
====================================================    =====================================================

.. note::

    If you do not want one or more of the default pages to be created (e.g.,
    you are the only author on your site and thus do not need an Authors page),
    set the corresponding ``*_SAVE_AS`` setting to ``False`` to prevent the
    relevant page from being generated.

Timezone
--------

If no timezone is defined, UTC is assumed. This means that the generated Atom
and RSS feeds will contain incorrect date information if your locale is not UTC.

Pelican issues a warning in case this setting is not defined, as it was not
mandatory in previous versions.

Have a look at `the wikipedia page`_ to get a list of valid timezone values.

.. _the wikipedia page: http://en.wikipedia.org/wiki/List_of_tz_database_time_zones


Date format and locale
----------------------

If no DATE_FORMATS are set, Pelican will fall back to DEFAULT_DATE_FORMAT. If
you need to maintain multiple languages with different date formats, you can
set this dict using the language name (``lang`` metadata in your post content)
as the key. Regarding available format codes, see `strftime document of python`_ :

.. parsed-literal::

    DATE_FORMATS = {
        'en': '%a, %d %b %Y',
        'jp': '%Y-%m-%d(%a)',
    }

You can set locale to further control date format:

.. parsed-literal::

    LOCALE = ('usa', 'jpn',  # On Windows
        'en_US', 'ja_JP'     # On Unix/Linux
        )

Also, it is possible to set different locale settings for each language. If you
put (locale, format) tuples in the dict, this will override the LOCALE setting
above:

.. parsed-literal::
    # On Unix/Linux
    DATE_FORMATS = {
        'en': ('en_US','%a, %d %b %Y'),
        'jp': ('ja_JP','%Y-%m-%d(%a)'),
    }

    # On Windows
    DATE_FORMATS = {
        'en': ('usa','%a, %d %b %Y'),
        'jp': ('jpn','%Y-%m-%d(%a)'),
    }

This is a list of available `locales on Windows`_ . On Unix/Linux, usually you
can get a list of available locales via the ``locale -a`` command; see manpage
`locale(1)`_ for more information.


.. _strftime document of python: http://docs.python.org/library/datetime.html#strftime-strptime-behavior

.. _locales on Windows: http://msdn.microsoft.com/en-us/library/cdax410z%28VS.71%29.aspx

.. _locale(1): http://linux.die.net/man/1/locale


.. _template_pages:

Template pages
==============

If you want to generate custom pages besides your blog entries, you can point
any Jinja2 template file with a path pointing to the file and the destination
path for the generated file.

For instance, if you have a blog with three static pages — a list of books,
your resume, and a contact page — you could have::

    TEMPLATE_PAGES = {'src/books.html': 'dest/books.html',
                      'src/resume.html': 'dest/resume.html',
                      'src/contact.html': 'dest/contact.html'}


.. _path_metadata:

Path metadata
=============

Not all metadata needs to be `embedded in source file itself`__.  For
example, blog posts are often named following a ``YYYY-MM-DD-SLUG.rst``
pattern, or nested into ``YYYY/MM/DD-SLUG`` directories.  To extract
metadata from the filename or path, set ``FILENAME_METADATA`` or
``PATH_METADATA`` to regular expressions that use Python's `group name
notation`_ ``(?P<name>…)``.  If you want to attach additional metadata
but don't want to encode it in the path, you can set
``EXTRA_PATH_METADATA``:

.. parsed-literal::

    EXTRA_PATH_METADATA = {
        'relative/path/to/file-1': {
            'key-1a': 'value-1a',
            'key-1b': 'value-1b',
            },
        'relative/path/to/file-2': {
            'key-2': 'value-2',
            },
        }

This can be a convenient way to shift the installed location of a
particular file:

.. parsed-literal::

    # Take advantage of the following defaults
    # STATIC_SAVE_AS = '{path}'
    # STATIC_URL = '{path}'
    STATIC_PATHS = [
        'extra/robots.txt',
        ]
    EXTRA_PATH_METADATA = {
        'extra/robots.txt': {'path': 'robots.txt'},
        }

__ internal_metadata__
.. _group name notation:
   http://docs.python.org/3/library/re.html#regular-expression-syntax

Feed settings
=============

By default, Pelican uses Atom feeds. However, it is also possible to use RSS
feeds if you prefer.

Pelican generates category feeds as well as feeds for all your articles. It does
not generate feeds for tags by default, but it is possible to do so using
the ``TAG_FEED_ATOM`` and ``TAG_FEED_RSS`` settings:

================================================    =====================================================
Setting name (default value)                        What does it do?
================================================    =====================================================
`FEED_DOMAIN` (``None``, i.e. base URL is "/")      The domain prepended to feed URLs. Since feed URLs
                                                    should always be absolute, it is highly recommended
                                                    to define this (e.g., "http://feeds.example.com"). If
                                                    you have already explicitly defined SITEURL (see
                                                    above) and want to use the same domain for your
                                                    feeds, you can just set:  ``FEED_DOMAIN = SITEURL``.
`FEED_ATOM` (``None``, i.e. no Atom feed)           Relative URL to output the Atom feed.
`FEED_RSS` (``None``, i.e. no RSS)                  Relative URL to output the RSS feed.
`FEED_ALL_ATOM` (``'feeds/all.atom.xml'``)          Relative URL to output the all posts Atom feed:
                                                    this feed will contain all posts regardless of their
                                                    language.
`FEED_ALL_RSS` (``None``, i.e. no all RSS)          Relative URL to output the all posts RSS feed:
                                                    this feed will contain all posts regardless of their
                                                    language.
`CATEGORY_FEED_ATOM` ('feeds/%s.atom.xml'[2]_)      Where to put the category Atom feeds.
`CATEGORY_FEED_RSS` (``None``, i.e. no RSS)         Where to put the category RSS feeds.
`TAG_FEED_ATOM` (``None``, i.e. no tag feed)        Relative URL to output the tag Atom feed. It should
                                                    be defined using a "%s" match in the tag name.
`TAG_FEED_RSS` (``None``, ie no RSS tag feed)       Relative URL to output the tag RSS feed
`FEED_MAX_ITEMS`                                    Maximum number of items allowed in a feed. Feed item
                                                    quantity is unrestricted by default.
================================================    =====================================================

If you don't want to generate some or any of these feeds, set the above variables to ``None``.

.. [2] %s is the name of the category.

FeedBurner
----------

If you want to use FeedBurner for your feed, you will likely need to decide
upon a unique identifier. For example, if your site were called "Thyme" and
hosted on the www.example.com domain, you might use "thymefeeds" as your
unique identifier, which we'll use throughout this section for illustrative
purposes. In your Pelican settings, set the `FEED_ATOM` attribute to
"thymefeeds/main.xml" to create an Atom feed with an original address of
`http://www.example.com/thymefeeds/main.xml`. Set the `FEED_DOMAIN` attribute
to `http://feeds.feedburner.com`, or `http://feeds.example.com` if you are
using a CNAME on your own domain (i.e., FeedBurner's "MyBrand" feature).

There are two fields to configure in the `FeedBurner
<http://feedburner.google.com>`_ interface: "Original Feed" and "Feed
Address". In this example, the "Original Feed" would be
`http://www.example.com/thymefeeds/main.xml` and the "Feed Address" suffix
would be `thymefeeds/main.xml`.

Pagination
==========

The default behaviour of Pelican is to list all the article titles along
with a short description on the index page. While it works pretty well
for small-to-medium blogs, for sites with large quantity of articles it would
be convenient to have a way to paginate the list.

You can use the following settings to configure the pagination.

================================================    =====================================================
Setting name (default value)                        What does it do?
================================================    =====================================================
`DEFAULT_ORPHANS` (``0``)                           The minimum number of articles allowed on the
                                                    last page. Use this when you don't want to
                                                    have a last page with very few articles.
`DEFAULT_PAGINATION` (``False``)                    The maximum number of articles to include on a
                                                    page, not including orphans. False to disable
                                                    pagination.
`PAGINATION_PATTERNS`                               A set of patterns that are used to determine advanced
                                                    pagination output.
================================================    =====================================================

Using Pagination Patterns
-------------------------

The ``PAGINATION_PATTERNS`` setting can be used to configure where
subsequent pages are created. The setting is a sequence of three
element tuples, where each tuple consists of::

  (minimum page, URL setting, SAVE_AS setting,)

For example, if you wanted the first page to just be ``/``, and the
second (and subsequent) pages to be ``/page/2/``, you would set
``PAGINATION_PATTERNS`` as follows::

  PAGINATION_PATTERNS = (
      (1, '{base_name}/', '{base_name}/index.html'),
      (2, '{base_name}/page/{number}/', '{base_name}/page/{number}/index.html'),
  )

This would cause the first page to be written to
``{base_name}/index.html``, and subsequent ones would be written into
``page/{number}`` directories.

Tag cloud
=========

If you want to generate a tag cloud with all your tags, you can do so using the
following settings.

================================================    =====================================================
Setting name (default value)                        What does it do?
================================================    =====================================================
`TAG_CLOUD_STEPS` (``4``)                           Count of different font sizes in the tag
                                                    cloud.
`TAG_CLOUD_MAX_ITEMS` (``100``)                     Maximum number of tags in the cloud.
================================================    =====================================================

The default theme does not include a tag cloud, but it is pretty easy to add::

    <ul class="tagcloud">
        {% for tag in tag_cloud %}
            <li class="tag-{{ tag.1 }}"><a href="{{ SITEURL }}/{{ tag.0.url }}">{{ tag.0 }}</a></li>
        {% endfor %}
    </ul>

You should then also define CSS styles with appropriate classes (tag-0 to tag-N, where
N matches `TAG_CLOUD_STEPS` -1), tag-0 being the most frequent, and define a ul.tagcloud 
class with appropriate list-style to create the cloud, for example::

    ul.tagcloud {
      list-style: none;
        padding: 0;
    }

    ul.tagcloud li {
        display: inline-block;
    }

    li.tag-0 {
        font-size: 150%;
    }

    li.tag-1 {
        font-size: 120%;
    }

    ...    

Translations
============

Pelican offers a way to translate articles. See the :doc:`Getting Started <getting_started>` section for
more information.

=====================================================    =====================================================
Setting name (default value)                             What does it do?
=====================================================    =====================================================
`DEFAULT_LANG` (``'en'``)                                The default language to use.
`TRANSLATION_FEED_ATOM` ('feeds/all-%s.atom.xml'[3]_)    Where to put the Atom feed for translations.
`TRANSLATION_FEED_RSS` (``None``, i.e. no RSS)           Where to put the RSS feed for translations.
=====================================================    =====================================================

.. [3] %s is the language

Ordering content
=================

================================================    =====================================================
Setting name (default value)                        What does it do?
================================================    =====================================================
`NEWEST_FIRST_ARCHIVES` (``True``)                  Order archives by newest first by date. (False:
                                                    orders by date with older articles first.)
`REVERSE_CATEGORY_ORDER` (``False``)                Reverse the category order. (True: lists by reverse
                                                    alphabetical order; default lists alphabetically.)
================================================    =====================================================

Themes
======

Creating Pelican themes is addressed in a dedicated section (see :ref:`theming-pelican`).
However, here are the settings that are related to themes.

================================================    =====================================================
Setting name (default value)                        What does it do?
================================================    =====================================================
`THEME`                                             Theme to use to produce the output. Can be a relative
                                                    or absolute path to a theme folder, or the name of a
                                                    default theme or a theme installed via
                                                    ``pelican-themes`` (see below).
`THEME_STATIC_DIR` (``'theme'``)                    Destination directory in the output path where
                                                    Pelican will place the files collected from
                                                    `THEME_STATIC_PATHS`. Default is `theme`.
`THEME_STATIC_PATHS` (``['static']``)               Static theme paths you want to copy. Default
                                                    value is `static`, but if your theme has
                                                    other static paths, you can put them here. If files
                                                    or directories with the same names are included in
                                                    the paths defined in this settings, they will be
                                                    progressively overwritten.
`CSS_FILE` (``'main.css'``)                         Specify the CSS file you want to load.
================================================    =====================================================


By default, two themes are available. You can specify them using the `THEME` setting or by passing the
``-t`` option to the ``pelican`` command:

* notmyidea
* simple (a synonym for "plain text" :)

There are a number of other themes available at http://github.com/getpelican/pelican-themes.
Pelican comes with :doc:`pelican-themes`, a small script for managing themes.

You can define your own theme, either by starting from scratch or by duplicating
and modifying a pre-existing theme. Here is :doc:`a guide on how to create your theme <themes>`.

Following are example ways to specify your preferred theme::

    # Specify name of a built-in theme
    THEME = "notmyidea"
    # Specify name of a theme installed via the pelican-themes tool
    THEME = "chunk"
    # Specify a customized theme, via path relative to the settings file
    THEME = "themes/mycustomtheme"
    # Specify a customized theme, via absolute path
    THEME = "~/projects/mysite/themes/mycustomtheme"

The built-in ``notmyidea`` theme can make good use of the following settings. Feel
free to use them in your themes as well.

=======================   =======================================================
Setting name              What does it do ?
=======================   =======================================================
`SITESUBTITLE`            A subtitle to appear in the header.
`DISQUS_SITENAME`         Pelican can handle Disqus comments. Specify the
                          Disqus sitename identifier here.
`GITHUB_URL`              Your GitHub URL (if you have one). It will then
                          use this information to create a GitHub ribbon.
`GOOGLE_ANALYTICS`        'UA-XXXX-YYYY' to activate Google Analytics.
`GOSQUARED_SITENAME`      'XXX-YYYYYY-X' to activate GoSquared.
`MENUITEMS`               A list of tuples (Title, URL) for additional menu
                          items to appear at the beginning of the main menu.
`PIWIK_URL`               URL to your Piwik server - without 'http://' at the
                          beginning.
`PIWIK_SSL_URL`           If the SSL-URL differs from the normal Piwik-URL
                          you have to include this setting too. (optional)
`PIWIK_SITE_ID`           ID for the monitored website. You can find the ID
                          in the Piwik admin interface > settings > websites.
`LINKS`                   A list of tuples (Title, URL) for links to appear on
                          the header.
`SOCIAL`                  A list of tuples (Title, URL) to appear in the
                          "social" section.
`TWITTER_USERNAME`        Allows for adding a button to articles to encourage
                          others to tweet about them. Add your Twitter username
                          if you want this button to appear.
=======================   =======================================================

In addition, you can use the "wide" version of the ``notmyidea`` theme by
adding the following to your configuration::

    CSS_FILE = "wide.css"

Example settings
================

.. literalinclude:: ../samples/pelican.conf.py
    :language: python


.. _Jinja custom filters documentation: http://jinja.pocoo.org/docs/api/#custom-filters