README.md

Jekyll-Scholar
==============

Jekyll-Scholar is for all the academic bloggers out there. It is a set of
extensions to [Jekyll](http://jekyllrb.com/), the awesome, blog aware, static
site generator; it formats your bibliographies and reading lists for the web
and gives your blog posts citation super-powers.

For additional features you may also want to take a look at
[jekyll-scholar-extras](https://github.com/hdpatel/jekyll-scholar-extras).


Installation
------------

    $ [sudo] gem install jekyll-scholar


Usage
-----

Install and setup a new [Jekyll](http://jekyllrb.com/) directory (see the
[Jekyll-Wiki](https://github.com/mojombo/jekyll/wiki/Usage) for detailed
instructions). To enable the Jekyll-Scholar add the following statement
to a file in your plugin directory (e.g., to `_plugins/ext.rb`):

    require 'jekyll/scholar'

In your configuration you can now adjust the Jekyll-Scholar settings. The
default configuration is as follows:

    scholar:
      style: apa
      locale: en
      
      sort_by: none
      order: ascending
      
      source: ./_bibliography
      bibliography: references.bib
      
      details_dir:    bibliography
      details_layout: bibtex.html
      details_link:   Details
      
      query: "@*"  

You can use any style that ships with
[CiteProc-Ruby](https://github.com/inukshuk/citeproc-ruby) by name (e.g.,
apa, mla, chicago-fullnote-bibliography), or else you can add a link
to any CSL style (e.g., you could link to any of the styles available at
the official [CSL style repository](https://github.com/citation-style-language/styles)).

The `locale` settings defines what language to use when formatting
your references (this typically applies to localized terms, e.g., 'Eds.' for
editors in English).

The `source` option indicates where your bibliographies are stored;
`bibliography` is the name of your default bibliography.


### Bibliographies

Once you have loaded Jekyll-Scholar, all files with the extension `.bib` or
`.bibtex` will be converted when you run Jekyll (don't forget to add a YAML
header to the files); the file can contain regular HTML or Markdown and
BibTeX entries; the latter will be formatted by Jekyll-Scholar according to
the citation style and language defined in your configuration file.

For example, if you had a file `bibliography.bib` in your root directory:

    ---
    ---
    References
    ==========
    
    @book{ruby,
      title     = {The Ruby Programming Language},
      author    = {Flanagan, David and Matsumoto, Yukihiro},
      year      = {2008},
      publisher = {O'Reilly Media}
    }

It would be converted to `bibliography.html` with the following content:

    <h1 id='references'>References</h1>

    <p>Flanagan, D., &#38; Matsumoto, Y. (2008). <i>The Ruby Programming Language</i>. O&#8217;Reilly Media.</p>

This makes it very easy for you to add your bibliography to your Jekyll-powered
blog or website.

If your using other converters to generate your site, don't worry, you can
still generate bibliographies using the `bibliography` tag. In your site
or blog post, simply call:

    {% bibliography %}

This will generate your default bibliography; if you use multiple, you can
also pass in a name to tell Jekyll-Scholar which bibliography it should render.

Let's say you have two bibliographies stored in `_bibliography/books.bib` and
`_bibliography/papers.bib`; you can include the bibliographies on your site
by respectively calling `{% bibliography books %}` and
`{% bibliography papers %}`. For example, you could have a file `references.md`
with several reference lists:

    ---
    title: My References
    ---

    {{ page.title }}
    ================

    The default Bibliography
    ------------------------

    {% bibliography %}

    Secondary References
    --------------------

    {% bibliography secondary %}


### Citations

If you want to reference books or papers from your bibliography in your blog
posts, Jekyll-Scholar can help you, too. Simply use the `cite` tag with
the appropriate key of the item you want to cite and Jekyll-Scholar will
create a formatted citation reference for you. For a quick example, take
following blog post:

    ---
    layout: default
    title: A Blogging Scholar
    ---

    {{ page.title }}
    ================

    Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor
    incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis
    nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.
    Duis 'aute irure dolor in reprehenderit in voluptate' {% cite derrida:purveyor %}
    velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat
    cupidatat non proident, 'sunt in culpa qui officia deserunt mollit anim id est
    laborum' {% cite rabinowitz %}.

    Duis 'aute irure dolor in reprehenderit in voluptate' {% cite breton:surrealism %}
    velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat
    cupidatat non proident, 'sunt in culpa qui officia deserunt mollit anim id est
    laborum' {% cite rainey %}.

    References
    ----------

    {% bibliography %}

For longer quotes, Jekyll-Scholar provides a `quote` tag:

    {% quote derrida:purveyor %}
    Lorem ipsum dolor sit amet, consectetur adipisicing elit,
    sed do eiusmod tempor.
    
    Lorem ipsum dolor sit amet, consectetur adipisicing.
    {% endquote %}

For example, this could be rendered as:

    <blockquote>
      <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit,<br/>
      sed do eiusmod tempor.</p>
      <p>Lorem ipsum dolor sit amet, consectetur adipisicing.</p>
      <cite>
        <a href="#derrida:purveyor">(Derrida, 1975)</a>
      </cite>
    </blockquote>

#### Displaying formatted references

If you want to display the full formatted reference entry, you can use the
`reference` tag. For example, given the following Bibtex entry,

    @book{ruby,
      title     = {The Ruby Programming Language},
      author    = {Flanagan, David and Matsumoto, Yukihiro},
      year      = {2008},
      publisher = {O'Reilly Media}
    }

using `{% reference ruby %}` anywhere in your page, it will print
"Flanagan, D., & Matsumoto, Y. (2008). *The Ruby Programming Language.*.
O'Reilly Media" (the exact result depends on your formatting style).

The `reference` tag accepts a second optional argument that specifies the
absolute path of the BibTeX file to use as input. Using it, you can override
the file from which the bib entries are read. This can be handy if you
want to use a special BibTeX file as input for a specific page. As an example,
the tag

    {% reference ruby, /home/foo/bar.bib %}

will attempt to read the key `ruby` from file `/home/foo/bar.bib`. It will not
fallback to the default BibTeX file.

### Detail Pages

If your layouts directory contains a layout file for bibliography details
(the 'details_layout' configuration options), Jekyll-Scholar will generate
a details page for each entry in you main bibliography. That is to say, if
your bibliography contains the following entry:

    @book{ruby,
      title     = {The Ruby Programming Language},
      author    = {Flanagan, David and Matsumoto, Yukihiro},
      year      = {2008},
      publisher = {O'Reilly Media}
    }

Then a page 'bibliography/ruby.html' will be generated according to your
details page layout. In the layout file, you have access to all fields
of your BibTeX entry. Here is an example of a details page layout:

    ---
    ---
    <html>
    <head></head>
    <body>
      <h1>{{ page.entry.title }}</h1>
      <h2>{{ page.entry.author }}</h2>
      <p>{{ page.entry.abstract }}</p>
    </body>
    </html>

When Jekyll-Scholar generates detail pages, it also adds links to each
entry's detail page to the generated bibliography. You can alter the
name of the link via the 'details_link' configuration option.

Jekyll-Scholar also provides a Liquid tag for conveniently adding links
to individual detail pages. For example, if you would like to add a simple
link to one of the items in your bibliography on a page or in a blog post
you can use the `cite_details` tag to generate the link. For this to work,
you need to pass the BibTeX key of the element you want to reference to
the tag and, optionally, provide a text for the link (the default text
can be set via the 'details_link' configuration option).

    Duis 'aute irure dolor in reprehenderit in voluptate' velit esse cillum
    dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non
    proident {% cite_details key, Click Here For More Details %}.


### Bibliography Filters

By default, Jekyll-Scholar includes all entries in you main BibTeX file
when generating bibliographies. If you want to include only those entries
matching certain criteria, you can do so by adjusting the 'query'
configuration option. For example:

    query: "@book" #=> includes only books
    query: "@article[year>=2003]" #=> includes only articles published 2003 or later
    query: "@*[url]" #=> includes all entries with a url field
    query: "@*[status!=review]" #=> includes all entries whose status field is not set to 'review' 

Please note that some of these queries require bibtex-ruby 2.0.7 or
later versions.

Contributing
------------

The Jekyll-Scholar source code is
[hosted on GitHub](http://github.com/inukshuk/jekyll-scholar/).
You can check out a copy of the latest code using Git:

    $ git clone https://github.com/inukshuk/jekyll-scholar.git

If you've found a bug or have a question, please open an issue on the
[Jekyll-Scholar issue tracker](http://github.com/inukshuk/jekyll-scholar/issues).
Or, for extra credit, clone the Jekyll-Scholar repository, write a failing
example, fix the bug and submit a pull request.

License
-------

Jekyll-Scholar is distributed under the same license as Jekyll.

Copyright (c) 2011-2012 [Sylvester Keil](http://sylvester.keil.or.at/)

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the 'Software'), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.