From: Patrick Gundlach <clr8.10.randomuser@...>
Date: 2005-10-25T02:07:01+09:00
Subject: TagTreeScanner help

Hello out there, 


I am experimenting with TagTreeScanner from Gavin Kistner. Has anybody
created a Wiki-markup parser for the mediawiki software?

I have succeded for a few tags, but I am currently stuck with
enumerations:

* one
*two
* three
** threeone
** threetwo
*four


should be represented by sth. like

<ol>
  <li>one</li>
  <li>two</li>
  <li>three
   <ol>
     <li>threeone</li>
     <li>threetwo</li>
   </ol>
  </li>
  <li>four</li>
</ol>

This is what I have tried, but I have the feeling that is not the way
to proceed here. I only get <ol> </ol> around the string.

--------------------------------------------------
#!/opt/ruby/1.8.2/bin/ruby

require 'TagTreeScanner'

class SimpleMarkup < TagTreeScanner
  @root_factory.allows_text = false
  @tag_genres[ :root ] = [ ]
  @tag_genres[ :root ] <<
    TagFactory.new( :ol,
                    :open_match => /(\*.+?)\n+(?=[^*])/m,
                    :open_requires_bol => true,
                    :setup => lambda{ |tag, scanner, tagtree|
                      # Throw the contents I found into the tag
                      # but remove leading whitespace
                      tag << scanner[1] # [1].gsub( /\*/, '<li>' )
                    },
                    :allows_text => true,
                    :autoclose => :true,
                    # no effect: (??)
                    :allowed_genre => :list
                    )

  @tag_genres[ :list ] = [ ]
  @tag_genres[ :list ] <<
    TagFactory.new( :li,
                    :open_match => /\*/,
                    :close_match => /\n/,
                    :open_requires_bol => true,
                    :allows_text => true
                    )


end

sample = <<EOS
* one
*two
* three
** threeone
** threetwo
*four

EOS

   
markup = SimpleMarkup.new(sample)
puts markup.to_xml
--------------------------------------------------