Initial commit

.gitignore

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+*.pyc

LICENSE.txt

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+The MIT License (MIT)
+Copyright (c) 2011 Greg Thornton, http://xdissent.com
+
+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.

README.rst

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+Overview
+========
+
+This plugin adds `ReStructuredText`_ support to `Jekyll`_ and `Octopress`_. 
+It renders ReST in posts and pages, and provides a custom directives to
+support Octopress-compatible syntax highlighting.
+
+Requirements
+============
+
+* Jekyll *or* Octopress >= 2.0
+* Docutils
+* Pygments
+* `RbST`_
+
+Installation
+============
+
+1. Install Docutils and Pygments. 
+
+   The most convenient way is to use virtualenv_burrito:
+
+   .. sourcecode:: console
+
+      $ curl -s https://raw.github.com/brainsik/virtualenv-burrito/master/virtualenv-burrito.sh | bash
+      $ source /Users/xdissent/.venvburrito/startup.sh
+      $ mkvirtualenv jekyll-rst
+      $ pip install docutils pygments
+
+2. Install RbST.
+
+   If you use `bundler`_ with Octopress, add ``gem 'RbST'`` to 
+   your ``Gemfile`` in the ``development`` group, then run 
+   ``bundle install``. Otherwise, ``gem install RbST``.
+
+3. Install the plugin.
+
+   For Jekyll:
+
+   .. sourcecode:: console
+
+      $ cd <jekyll-project-path>
+      $ git submodule add https://github.com/xdissent/jekyll-rst.git _plugins/jekyll-rst
+
+   For Octopress:
+
+   .. sourcecode:: console
+
+      $ cd <octopress-project-path>
+      $ git submodule add https://github.com/xdissent/jekyll-rst.git plugins/jekyll-rst
+
+4. Start blogging in ReStructuredText. Any file with the ``.rst`` extension
+   will be parsed as ReST and rendered into HTML.
+
+   .. note:: Be sure to activate the ``jekyll-rst`` virtualenv before generating
+      the site by issuing a ``workon jekyll-rst``. I suggest you follow `Harry
+      Marr's advice`_ and create a ``.venv`` file that will  automatically 
+      activate the ``jekyll-rst`` virtualenv when you ``cd`` into your project.
+
+Octopress Tips
+==============
+
+* Use ``.. more`` in your ReST documents to indicate where Octopress's 
+  ``excerpt`` tag should split your content for summary views.
+
+
+.. _ReStructuredText: http://docutils.sourceforge.net/rst.html
+.. _Jekyll: http://jekyllrb.com/
+.. _Octopress: http://octopress.com/
+.. _RbST: http://rubygems.org/gems/RbST
+.. _bundler: http://gembundler.com/
+.. _Harry Marr's advice: http://hmarr.com/2010/jan/19/making-virtualenv-play-nice-with-git/

converter.rb

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+require 'rbst'
+
+module Jekyll
+  class RestConverter < Converter
+    safe true
+
+    priority :low
+
+    def matches(ext)
+      ext =~ /rst/i
+    end 
+
+    def output_ext(ext)
+      ".html"
+    end
+
+    def convert(content)
+      RbST.executables = {:html => "#{File.expand_path(File.dirname(__FILE__))}/rst2html.py"}
+      RbST.new(content).to_html(:part => :fragment, :initial_header_level => 2)
+    end
+  end
+
+  module Filters
+    def restify(input)
+      site = @context.registers[:site]
+      converter = site.getConverterImpl(Jekyll::RestConverter)
+      converter.convert(input)
+    end
+  end
+end  

directives.py

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+# Define a new directive `code-block` (aliased as `sourcecode`) that uses the 
+# `pygments` source highlighter to render code in color. 
+#
+# Incorporates code from the `Pygments`_ documentation for `Using Pygments in 
+# ReST documents`_ and `Octopress`_.
+#
+# .. _Pygments: http://pygments.org/
+# .. _Using Pygments in ReST documents: http://pygments.org/docs/rstdirective/
+# .. _Octopress: http://octopress.org/
+
+import re
+import os
+import md5
+import __main__
+
+# Absolute path to pygments cache dir
+PYGMENTS_CACHE_DIR = os.path.abspath(os.path.join(os.path.dirname(__main__.__file__), '../../.pygments-cache'))
+
+# Ensure cache dir exists
+if not os.path.exists(PYGMENTS_CACHE_DIR):
+    os.mkdirs(PYGMENTS_CACHE_DIR)
+
+from pygments.formatters import HtmlFormatter
+
+from docutils import nodes
+from docutils.parsers.rst import directives, Directive
+
+from pygments import highlight
+from pygments.lexers import get_lexer_by_name, TextLexer
+
+class Pygments(Directive):
+    """ Source code syntax hightlighting.
+    """
+    required_arguments = 1
+    optional_arguments = 0
+    final_argument_whitespace = True
+    string_opts = ['title', 'url', 'caption']
+    option_spec = dict([(key, directives.unchanged) for key in string_opts])
+    has_content = True
+
+    def run(self):
+        self.assert_has_content()
+        try:
+            lexer_name = self.arguments[0]
+            lexer = get_lexer_by_name(lexer_name)
+        except ValueError:
+            # no lexer found - use the text one instead of an exception
+            lexer_name = 'text'
+            lexer = TextLexer()
+        formatter = HtmlFormatter()
+
+        # Construct cache filename
+        cache_file = None
+        content_text = u'\n'.join(self.content)
+        cache_file_name = '%s-%s.html' % (lexer_name, md5.new(content_text).hexdigest())
+        cached_path = os.path.join(PYGMENTS_CACHE_DIR, cache_file_name)
+
+        # Look for cached version, otherwise parse
+        if os.path.exists(cached_path):
+            cache_file = open(cached_path, 'r')
+            parsed = cache_file.read()
+        else:
+            parsed = highlight(content_text, lexer, formatter)
+
+        # Strip pre tag and everything outside it
+        pres = re.compile("<pre>(.+)<\/pre>", re.S)
+        stripped = pres.search(parsed).group(1)
+
+        # Create tabular code with line numbers
+        table = '<div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers">'
+        lined = ''
+        for idx, line in enumerate(stripped.splitlines(True)):
+            table += '<span class="line-number">%d</span>\n' % (idx + 1)
+            lined  += '<span class="line">%s</span>' % line
+        table += '</pre></td><td class="code"><pre><code class="%s">%s</code></pre></td></tr></table></div>' % (lexer_name, lined)
+
+        # Add wrapper with optional caption and link
+        code = '<figure class="code">'
+        if self.options:
+            caption = ('<span>%s</span>' % self.options['caption']) if 'caption' in self.options else ''
+            title = self.options['title'] if 'title' in self.options else 'link'
+            link = ('<a href="%s">%s</a>' % (self.options['url'], title)) if 'url' in self.options else ''
+
+            if caption or link:
+                code += '<figcaption>%s %s</figcaption>' % (caption, link)
+        code += '%s</figure>' % table
+
+        # Write cache
+        if cache_file is None:
+            cache_file = open(cached_path, 'w')
+            cache_file.write(parsed)
+        cache_file.close()
+
+        return [nodes.raw('', code, format='html')]
+
+directives.register_directive('code-block', Pygments)
+directives.register_directive('sourcecode', Pygments)

rst2html.py

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+#!/usr/bin/env python
+
+# :Author: David Goodger, the Pygments team, Guenter Milde
+# :Date: $Date: $
+# :Copyright: This module has been placed in the public domain.
+
+# This is a merge of the `Docutils`_ `rst2html` front end with an extension
+# suggestion taken from the `Pygments`_ documentation, reworked specifically
+# for `Octopress`_.
+#
+# .. _Pygments: http://pygments.org/
+# .. _Docutils: http://docutils.sourceforge.net/
+# .. _Octopress: http://octopress.org/
+
+"""
+A front end to docutils, producing HTML with syntax colouring using pygments
+"""
+
+try:
+    import locale
+    locale.setlocale(locale.LC_ALL, '')
+except:
+    pass
+
+from transform import transform
+from docutils.writers.html4css1 import Writer
+from docutils.core import default_description
+from directives import Pygments
+
+description = ('Generates (X)HTML documents from standalone reStructuredText '
+               'sources. Uses `pygments` to colorize the content of'
+               '"code-block" directives. Needs an adapted stylesheet' 
+               + default_description)
+
+def main():
+    return transform(writer=Writer(), part='html_body')
+
+if __name__ == '__main__':
+    print(main())

transform.py

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+import sys
+from docutils.core import publish_parts
+from optparse import OptionParser
+from docutils.frontend import OptionParser as DocutilsOptionParser
+from docutils.parsers.rst import Parser
+
+def transform(writer=None, part=None):
+    p = OptionParser(add_help_option=False)
+    
+    # Collect all the command line options
+    docutils_parser = DocutilsOptionParser(components=(writer, Parser()))
+    for group in docutils_parser.option_groups:
+        p.add_option_group(group.title, None).add_options(group.option_list)
+    
+    p.add_option('--part', default=part)
+    
+    opts, args = p.parse_args()
+    
+    settings = dict({
+        'file_insertion_enabled': False,
+        'raw_enabled': False,
+    }, **opts.__dict__)
+    
+    if len(args) == 1:
+        try:
+            content = open(args[0], 'r').read()
+        except IOError:
+            content = args[0]
+    else:
+        content = sys.stdin.read()
+    
+    parts = publish_parts(
+        source=content,
+        settings_overrides=settings,
+        writer=writer,
+    )
+    
+    if opts.part in parts:
+        return parts[opts.part]
+    return ''