# redMine - project management software # Copyright (C) 2006-2007 Jean-Philippe Lang # # This program is free software; you can redistribute it and/or # modify it under the terms of the GNU General Public License # as published by the Free Software Foundation; either version 2 # of the License, or (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. require 'redcloth' require 'coderay' module Redmine module WikiFormatting private class TextileFormatter < RedCloth # auto_link rule after textile rules so that it doesn't break !image_url! tags RULES = [:textile, :block_markdown_rule, :inline_auto_link, :inline_auto_mailto, :inline_toc, :inline_macros] def initialize(*args) super self.hard_breaks=true self.no_span_caps=true end def to_html(*rules, &block) @toc = [] @macros_runner = block super(*RULES).to_s end private # Patch for RedCloth. Fixed in RedCloth r128 but _why hasn't released it yet. # http://code.whytheluckystiff.net/redcloth/changeset/128 def hard_break( text ) text.gsub!( /(.)\n(?!\n|\Z|>| *(>? *[#*=]+(\s|$)|[{|]))/, "\\1
\n" ) if hard_breaks end # Patch to add code highlighting support to RedCloth def smooth_offtags( text ) unless @pre_list.empty? ## replace
 content
          text.gsub!(//) do
            content = @pre_list[$1.to_i]
            if content.match(/\s?(.+)/m)
              content = "" + 
                CodeRay.scan($2, $1.downcase).html(:escape => false, :line_numbers => :inline)
            end
            content
          end
        end
      end
      
      # Patch to add 'table of content' support to RedCloth
      def textile_p_withtoc(tag, atts, cite, content)
        if tag =~ /^h(\d)$/
          @toc << [$1.to_i, content]
        end
        content = "" + content
        textile_p(tag, atts, cite, content)
      end

      alias :textile_h1 :textile_p_withtoc
      alias :textile_h2 :textile_p_withtoc
      alias :textile_h3 :textile_p_withtoc
      
      def inline_toc(text)
        text.gsub!(/

\{\{([<>]?)toc\}\}<\/p>/i) do div_class = 'toc' div_class << ' right' if $1 == '>' div_class << ' left' if $1 == '<' out = "

" @toc.each_with_index do |heading, index| # remove wiki links from the item toc_item = heading.last.gsub(/(\[\[|\]\])/, '') # remove styles # eg. %{color:red}Triggers% => Triggers toc_item.gsub! %r[%\{[^\}]*\}([^%]+)%], '\\1' out << "#{toc_item}" end out << '
' out end end MACROS_RE = / (!)? # escaping ( \{\{ # opening tag ([\w]+) # macro name (\(([^\}]*)\))? # optional arguments \}\} # closing tag ) /x unless const_defined?(:MACROS_RE) def inline_macros(text) text.gsub!(MACROS_RE) do esc, all, macro = $1, $2, $3.downcase args = ($5 || '').split(',').each(&:strip) if esc.nil? begin @macros_runner.call(macro, args) rescue => e "
Error executing the #{macro} macro (#{e})
" end || all else all end end end AUTO_LINK_RE = %r{ ( # leading text <\w+.*?>| # leading HTML tag, or [^=<>!:'"/]| # leading punctuation, or ^ # beginning of line ) ( (?:https?://)| # protocol spec, or (?:ftp://)| (?:www\.) # www.* ) ( (\S+?) # url (\/)? # slash ) ([^\w\=\/;]*?) # post (?=<|\s|$) }x unless const_defined?(:AUTO_LINK_RE) # Turns all urls into clickable links (code from Rails). def inline_auto_link(text) text.gsub!(AUTO_LINK_RE) do all, leading, proto, url, post = $&, $1, $2, $3, $6 if leading =~ /=]?/ # don't replace URL's that are already linked # and URL's prefixed with ! !> !< != (textile images) all else %(#{leading}#{proto + url}#{post}) end end end # Turns all email addresses into clickable links (code from Rails). def inline_auto_mailto(text) text.gsub!(/([\w\.!#\$%\-+.]+@[A-Za-z0-9\-]+(\.[A-Za-z0-9\-]+)+)/) do mail = $1 if text.match(/]*>(.*)(#{Regexp.escape(mail)})(.*)<\/a>/) mail else %{} end end end end public def self.to_html(text, options = {}, &block) TextileFormatter.new(text).to_html(&block) end end end