instiki/lib/chunks/engines.rb
Jacques Distler 9e909d5be3 Update Rails, rails_xss and Bundler
Update Bundler to 1.0.15.
Update Rails to 2.3.12.
Update rails_xss plugin.

The latter two were the
source of a considerable
amount of grief, as rails_xss
is now MUCH stricter about what
string methods can be used.

Also made it possible to use
rake 0.9.x with Instiki. But
you probably REALLY want to use

 ruby bundle exec rake ...

instead of just saying

 rake ....
2011-06-15 00:43:38 -05:00

133 lines
4.8 KiB
Ruby

$: << File.dirname(__FILE__) + "../../lib"
require_dependency 'chunks/chunk'
require 'instiki_stringsupport'
require 'maruku'
require 'maruku/ext/math'
require_dependency 'rdocsupport'
require 'redcloth'
require 'oldredcloth'
# The markup engines are Chunks that call the one of RedCloth
# or RDoc to convert text. This markup occurs when the chunk is required
# to mask itself.
module Engines
class AbstractEngine < Chunk::Abstract
# Create a new chunk for the whole content and replace it with its mask.
def self.apply_to(content)
new_chunk = self.new(content)
content.replace(new_chunk.mask)
end
private
# Never create engines by constructor - use apply_to instead
def initialize(content)
@content = content
end
end
class Textile < AbstractEngine
def mask
@content.as_utf8
redcloth = RedCloth.new(@content, [:hard_breaks] + @content.options[:engine_opts])
redcloth.filter_html = false
redcloth.no_span_caps = false
html = redcloth.to_html(:textile)
end
end
class Markdown < AbstractEngine
def mask
@content.as_utf8
# If the request is for S5, call Maruku accordingly (without math)
if @content.options[:mode] == :s5
my_content = Maruku.new(@content.delete("\r").to_utf8,
{:math_enabled => false, :content_only => true,
:author => @content.options[:engine_opts][:author],
:title => @content.options[:engine_opts][:title]})
@content.options[:renderer].s5_theme = my_content.s5_theme
else
html = Maruku.new(@content.delete("\r").to_utf8, {:math_enabled => false}).to_html
html.gsub(/\A<div class="maruku_wrapper_div">\n?(.*?)\n?<\/div>\Z/m, '\1')
end
end
end
class MarkdownMML < AbstractEngine
def mask
@content.as_utf8
# If the request is for S5, call Maruku accordingly
if @content.options[:mode] == :s5
my_content = Maruku.new(@content.delete("\r").to_utf8,
{:math_enabled => true,
:math_numbered => ['\\[','\\begin{equation}'],
:content_only => true,
:author => @content.options[:engine_opts][:author],
:title => @content.options[:engine_opts][:title]})
@content.options[:renderer].s5_theme = my_content.s5_theme
my_content.to_s5
else
html = Maruku.new(@content.delete("\r").to_utf8,
{:math_enabled => true,
:math_numbered => ['\\[','\\begin{equation}']}).to_html
html.gsub(/\A<div class="maruku_wrapper_div">\n?(.*?)\n?<\/div>\Z/m, '\1')
end
end
end
class MarkdownPNG < AbstractEngine
def mask
@content.as_utf8
# If the request is for S5, call Maruku accordingly
if @content.options[:mode] == :s5
my_content = Maruku.new(@content.delete("\r").to_utf8,
{:math_enabled => true,
:math_numbered => ['\\[','\\begin{equation}'],
:html_math_output_mathml => false,
:html_math_output_png => true,
:html_png_engine => 'blahtex',
:html_png_dir => @content.web.files_path.join('pngs').to_s,
:html_png_url => @content.options[:png_url],
:content_only => true,
:author => @content.options[:engine_opts][:author],
:title => @content.options[:engine_opts][:title]})
@content.options[:renderer].s5_theme = my_content.s5_theme
my_content.to_s5
else
html = Maruku.new(@content.delete("\r").to_utf8,
{:math_enabled => true,
:math_numbered => ['\\[','\\begin{equation}'],
:html_math_output_mathml => false,
:html_math_output_png => true,
:html_png_engine => 'blahtex',
:html_png_dir => @content.web.files_path.join('pngs').to_s,
:html_png_url => @content.options[:png_url]}).to_html
html.gsub(/\A<div class="maruku_wrapper_div">\n?(.*?)\n?<\/div>\Z/m, '\1')
end
end
end
class Mixed < AbstractEngine
def mask
@content.as_utf8
redcloth = OldRedCloth.new(@content.to_str, @content.options[:engine_opts])
redcloth.filter_html = false
redcloth.no_span_caps = false
html = redcloth.to_html
end
end
class RDoc < AbstractEngine
def mask
html = RDocSupport::RDocFormatter.new(@content.as_utf8.to_str).to_html
end
end
MAP = { :textile => Textile, :markdown => Markdown, :markdownMML => MarkdownMML, :markdownPNG => MarkdownPNG, :mixed => Mixed, :rdoc => RDoc }
MAP.default = MarkdownMML
end