From: bdarcus@...
Date: 2005-07-20T06:15:55+09:00
Subject: customizing redcloth?

Newbie question:

How do I add a new inline rule to RedCloth?

I want to add support for inline semantic quotes, including
support for citation markup.  So, I want ``this'':someid#pages=23, to
be converted to:

    <q cite="someid#pages=23">this</q>

I'm not getting the pattern processed though. I'm thinking it's because
RedCloth (and in particular the to_html method) doesn't know about the
new method I want to add, but have no idea how to resolve that (or if
I'm even right).

Bruce

#! /usr/bin/env ruby

require 'rubygems'
require 'redcloth'

class RedCloth

  QUOTE_RE = /
            ([\s\[{(]|[#{PUNCT}])?     # $pre
            ``                         # start
            (#{C})                     # $atts
            ([^"]+?)                   # $text
            \s?
            (?:\(([^)]+?)\)(?="))?     # $quote
            '':
            (\S+?)                     # $citeid
            (\/)?                      # $slash
            ([^\w\/;]*?)               # $post
            (?=<|\s|$)
        /x

  def inline_textile_quote( text )
    text.gsub!( QUOTE_RE ) do |m|
      pre,atts,text,quote,citeid,slash,post = $~[1..7]

#      citeid, citeid_quote = check_refs( citeid )
#      quote ||= citeid_quote

      atts = pba( atts )
      atts = " cite=\"#{ citeid }\"#{ atts }"
      text << "#{ quote }" if title
      atts = shelve( atts ) if atts

      "#{ pre }<q#{ atts }>#{ text }</q>#{ post }"
    end
  end

end