$: << 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