Class: NanDoc::Filters::FenceDispatcher

Inherits:
Object
  • Object
show all
Defined in:
lib/nandoc/filters/builtin-tags/fence-dispatcher.rb

Constant Summary collapse

Re = 
%r<
  (.*?)
  ^((?:[ ]|\t)*)((?:[a-z]|[ ])+):(?:[ ]|\t)*\n
  \2~~~(?:[ ]|\t)*\n
  (.*?)\n
  \2~~~(?:[ ]|\t)*\n
>mx

Class Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Class Attribute Details

.fences ⇒ Object (readonly)

Returns the value of attribute fences.



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# File 'lib/nandoc/filters/builtin-tags/fence-dispatcher.rb', line 20

def fences
  @fences
end

Class Method Details

.=~(item_content) ⇒ Object 



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# File 'lib/nandoc/filters/builtin-tags/fence-dispatcher.rb', line 14

def =~ item_content
  Re =~ item_content
end

.register(fent) ⇒ Object 



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# File 'lib/nandoc/filters/builtin-tags/fence-dispatcher.rb', line 17

def register fent
  @fences.push fent
end

Instance Method Details

#run(item_content) ⇒ Object 



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# File 'lib/nandoc/filters/builtin-tags/fence-dispatcher.rb', line 22

def run item_content
  scn = StringScanner.new(item_content)
  out = NanDoc::Html::Tags.new
  while (match = scn.scan_until(Re))
    Re =~ match or fail("internal parse fail :(")
    noparse, indent, label, content = $~.captures
    fence_cls = self.class.fences.detect{ |fent| fent =~ label }
    if ! fence_cls
      # silently fail on unidentified blocks for now, pass them thru
      out.push_raw $~[0]
    else
      out.push_raw noparse
      fence_tag = fence_cls.new
      fence_tag.run(out, indent, label, content)
    end
  end
  out.push_raw scn.rest
  html = out.to_html
  html
end