# Redmine - project management software # Copyright (C) 2006-2008 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 'redcloth3' module Redmine module WikiFormatting module Textile class Formatter < RedCloth3 include ActionView::Helpers::TagHelper # 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] def initialize(*args) super self.hard_breaks=true self.no_span_caps=true self.filter_styles=true end def to_html(*rules) @toc = [] 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
" ) 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 = "" + 
                  Redmine::SyntaxHighlighting.highlight_by_language($2, $1)
              end
              content
            end
          end
        end
        
        # Patch to add 'table of content' support to RedCloth
        def textile_p_withtoc(tag, atts, cite, content)
          # removes wiki links from the item
          toc_item = content.gsub(/(\[\[([^\]\|]*)(\|([^\]]*))?\]\])/) { $4 || $2 }
          # sanitizes titles from links
          # see redcloth3.rb, same as "#{pre}#{text}#{post}"
          toc_item.gsub!(LINK_RE) { $2+$4+$9 }
          # removes styles
          # eg. %{color:red}Triggers% => Triggers
          toc_item.gsub! %r[%\{[^\}]*\}([^%]+)%], '\\1'
          
          # replaces non word caracters by dashes
          anchor = toc_item.gsub(%r{[^\w\s\-]}, '').gsub(%r{\s+(\-+\s*)?}, '-')
  
          unless anchor.blank?
            if tag =~ /^h(\d)$/
              @toc << [$1.to_i, anchor, toc_item]
            end
            atts << " id=\"#{anchor}\""
            content = content + ""
          end
          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 do |heading| level, anchor, toc_item = heading out << "
  • #{toc_item}
  • \n" end out << '
' out end end AUTO_LINK_RE = %r{ ( # leading text <\w+.*?>| # leading HTML tag, or [^=<>!:'"/]| # leading punctuation, or ^ # beginning of line ) ( (?:https?://)| # protocol spec, or (?:s?ftps?://)| (?: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 # Idea below : an URL with unbalanced parethesis and # ending by ')' is put into external parenthesis if ( url[-1]==?) and ((url.count("(") - url.count(")")) < 0 ) ) url=url[0..-2] # discard closing parenth from url post = ")"+post # add closing parenth to post end tag = content_tag('a', proto + url, :href => "#{proto=="www."?"http://www.":proto}#{url}", :class => 'external') %(#{leading}#{tag}#{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 content_tag('a', mail, :href => "mailto:#{mail}", :class => "email") end end end end end end end