instiki/lib/chunks/engines.rb
2007-02-14 22:19:37 -06:00

71 lines
1.9 KiB
Ruby

$: << File.dirname(__FILE__) + "../../lib"
require_dependency 'chunks/chunk'
# 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
require_dependency 'redcloth'
redcloth = RedCloth.new(@content, [:hard_breaks] + @content.options[:engine_opts])
redcloth.filter_html = false
redcloth.no_span_caps = false
redcloth.to_html(:textile)
end
end
class Markdown < AbstractEngine
def mask
require_dependency 'maruku'
Maruku.new(@content.delete("\r"), {:math_enabled => false}).to_html
end
end
class MarkdownMML < AbstractEngine
def mask
require_dependency 'maruku'
require_dependency 'maruku/ext/math'
Maruku.new(@content.delete("\r"), {:math_enabled => true, :math_numbered => ['\\[','\\begin{equation}']}).to_html
end
end
class Mixed < AbstractEngine
def mask
require_dependency 'redcloth'
redcloth = RedCloth.new(@content, @content.options[:engine_opts])
redcloth.filter_html = false
redcloth.no_span_caps = false
redcloth.to_html
end
end
class RDoc < AbstractEngine
def mask
require_dependency 'rdocsupport'
RDocSupport::RDocFormatter.new(@content).to_html
end
end
MAP = { :textile => Textile, :markdown => Markdown, :markdownMML => MarkdownMML, :mixed => Mixed, :rdoc => RDoc }
MAP.default = Textile
end