Update outdated "Extras" page and remove duplicate documentation

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Alfred Xing 2014-07-21 10:58:57 -07:00
parent c8b22a19ad
commit 9109495894
1 changed files with 3 additions and 75 deletions

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@ -9,82 +9,10 @@ permalink: /docs/extras/
There are a number of (optional) extra features that Jekyll supports that you
may want to install, depending on how you plan to use Jekyll.
## LaTeX Support
## Math Support
Maruku comes with optional support for LaTeX to PNG rendering via blahtex
(Version 0.6) which must be in your `$PATH` along with `dvips`.
Kramdown comes with optional support for LaTeX to PNG rendering via [MathJax](http://www.mathjax.org/) within math blocks. See the Kramdown documentation on [math blocks](http://kramdown.gettalong.org/syntax.html#math-blocks) and [math support](http://kramdown.gettalong.org/converter/html.html#math-support) for more details.
## Alternative Markdown Processors
While Jekyll defaults to using Maruku for Markdown conversion, you may use one
of the other three pre-defined markdown parsers or define your own.
### RDiscount
If you prefer to use [RDiscount](https://github.com/rtomayko/rdiscount) instead
of [Maruku](https://github.com/bhollis/maruku) for Markdown, just make sure you have
it installed:
{% highlight bash %}
$ [sudo] gem install rdiscount
{% endhighlight %}
And then specify RDiscount as the Markdown engine in your `_config.yml` file to
have Jekyll run with that option.
{% highlight yaml %}
# In _config.yml
markdown: rdiscount
{% endhighlight %}
### Kramdown
You can also use [Kramdown](http://kramdown.gettalong.org/) instead of Maruku
for Markdown. Make sure that Kramdown is installed:
{% highlight bash %}
$ [sudo] gem install kramdown
{% endhighlight %}
Then you can specify Kramdown as the Markdown engine in `_config.yml`.
{% highlight yaml %}
# In _config.yml
markdown: kramdown
{% endhighlight %}
Kramdown has various options for customizing the HTML output. The
[Configuration](/docs/configuration/) page lists the default options used by
Jekyll. A complete list of options is also available on the [Kramdown
website](http://kramdown.gettalong.org/options.html).
### User-Defined
So, you're totally at odds with our four built-in markdown parsers, eh? No
sweat. You can define one as a plugin:
{% highlight ruby %}
require 'jekyll'
require 'some_renderer'
class Jekyll::Converters::Markdown::MyCustomParser
def initialize(config)
@site_config = config
end
def convert(content)
# (this _must_ return the resulting String after the rendering)
SomeRenderer.new(@site_config).to_html(content)
end
end
{% endhighlight %}
Once you've got that setup, ask Jekyll to use your custom markdown parser in
your `_config.yml` file:
{% highlight yaml %}
markdown: MyCustomParser
{% endhighlight %}
(Note that this **is case-sensitive**, and is only the piece after
`Jekyll::Converters::Markdown`.) And there you are!
See the Markdown section on the [configuration page](/docs/configuration/#markdown-options) for instructions on how to use and configure alternative Markdown processors, as well as how to create [custom processors](http://jekyll.dev/docs/configuration/#custom-markdown-processors).