Chris@909: # Redmine - project management software
Chris@909: # Copyright (C) 2006-2011 Jean-Philippe Lang
Chris@909: #
Chris@909: # This program is free software; you can redistribute it and/or
Chris@909: # modify it under the terms of the GNU General Public License
Chris@909: # as published by the Free Software Foundation; either version 2
Chris@909: # of the License, or (at your option) any later version.
Chris@909: #
Chris@909: # This program is distributed in the hope that it will be useful,
Chris@909: # but WITHOUT ANY WARRANTY; without even the implied warranty of
Chris@909: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
Chris@909: # GNU General Public License for more details.
Chris@909: #
Chris@909: # You should have received a copy of the GNU General Public License
Chris@909: # along with this program; if not, write to the Free Software
Chris@909: # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Chris@909:
Chris@909: require 'redcloth3'
Chris@909: require 'digest/md5'
Chris@909:
Chris@909: module Redmine
Chris@909: module WikiFormatting
Chris@909: module Textile
Chris@909: class Formatter < RedCloth3
Chris@909: include ActionView::Helpers::TagHelper
Chris@909:
Chris@909: # auto_link rule after textile rules so that it doesn't break !image_url! tags
Chris@909: RULES = [:textile, :block_markdown_rule, :inline_auto_link, :inline_auto_mailto]
Chris@909:
Chris@909: def initialize(*args)
Chris@909: super
Chris@909: self.hard_breaks=true
Chris@909: self.no_span_caps=true
Chris@909: self.filter_styles=true
Chris@909: end
Chris@909:
Chris@909: def to_html(*rules)
Chris@909: @toc = []
Chris@909: super(*RULES).to_s
Chris@909: end
Chris@909:
Chris@909: def get_section(index)
Chris@909: section = extract_sections(index)[1]
Chris@909: hash = Digest::MD5.hexdigest(section)
Chris@909: return section, hash
Chris@909: end
Chris@909:
Chris@909: def update_section(index, update, hash=nil)
Chris@909: t = extract_sections(index)
Chris@909: if hash.present? && hash != Digest::MD5.hexdigest(t[1])
Chris@909: raise Redmine::WikiFormatting::StaleSectionError
Chris@909: end
Chris@909: t[1] = update unless t[1].blank?
Chris@909: t.reject(&:blank?).join "\n\n"
Chris@909: end
Chris@909:
Chris@909: def extract_sections(index)
Chris@909: @pre_list = []
Chris@909: text = self.dup
Chris@909: rip_offtags text, false, false
Chris@909: before = ''
Chris@909: s = ''
Chris@909: after = ''
Chris@909: i = 0
Chris@909: l = 1
Chris@909: started = false
Chris@909: ended = false
Chris@909: text.scan(/(((?:.*?)(\A|\r?\n\r?\n))(h(\d+)(#{A}#{C})\.(?::(\S+))? (.*?)$)|.*)/m).each do |all, content, lf, heading, level|
Chris@909: if heading.nil?
Chris@909: if ended
Chris@909: after << all
Chris@909: elsif started
Chris@909: s << all
Chris@909: else
Chris@909: before << all
Chris@909: end
Chris@909: break
Chris@909: end
Chris@909: i += 1
Chris@909: if ended
Chris@909: after << all
Chris@909: elsif i == index
Chris@909: l = level.to_i
Chris@909: before << content
Chris@909: s << heading
Chris@909: started = true
Chris@909: elsif i > index
Chris@909: s << content
Chris@909: if level.to_i > l
Chris@909: s << heading
Chris@909: else
Chris@909: after << heading
Chris@909: ended = true
Chris@909: end
Chris@909: else
Chris@909: before << all
Chris@909: end
Chris@909: end
Chris@909: sections = [before.strip, s.strip, after.strip]
Chris@909: sections.each {|section| smooth_offtags_without_code_highlighting section}
Chris@909: sections
Chris@909: end
Chris@909:
Chris@909: private
Chris@909:
Chris@909: # Patch for RedCloth. Fixed in RedCloth r128 but _why hasn't released it yet.
Chris@909: # http://code.whytheluckystiff.net/redcloth/changeset/128
Chris@909: def hard_break( text )
Chris@909: text.gsub!( /(.)\n(?!\n|\Z| *([#*=]+(\s|$)|[{|]))/, "\\1
" ) if hard_breaks
Chris@909: end
Chris@909:
Chris@909: alias :smooth_offtags_without_code_highlighting :smooth_offtags
Chris@909: # Patch to add code highlighting support to RedCloth
Chris@909: def smooth_offtags( text )
Chris@909: unless @pre_list.empty?
Chris@909: ## replace content
Chris@909: text.gsub!(//) do
Chris@909: content = @pre_list[$1.to_i]
Chris@909: if content.match(/\s?(.+)/m)
Chris@909: content = "" +
Chris@909: Redmine::SyntaxHighlighting.highlight_by_language($2, $1)
Chris@909: end
Chris@909: content
Chris@909: end
Chris@909: end
Chris@909: end
Chris@909:
Chris@909: AUTO_LINK_RE = %r{
Chris@909: ( # leading text
Chris@909: <\w+.*?>| # leading HTML tag, or
Chris@909: [^=<>!:'"/]| # leading punctuation, or
Chris@909: ^ # beginning of line
Chris@909: )
Chris@909: (
Chris@909: (?:https?://)| # protocol spec, or
Chris@909: (?:s?ftps?://)|
Chris@909: (?:www\.) # www.*
Chris@909: )
Chris@909: (
Chris@909: (\S+?) # url
Chris@909: (\/)? # slash
Chris@909: )
Chris@909: ((?:>)?|[^\w\=\/;\(\)]*?) # post
Chris@909: (?=<|\s|$)
Chris@909: }x unless const_defined?(:AUTO_LINK_RE)
Chris@909:
Chris@909: # Turns all urls into clickable links (code from Rails).
Chris@909: def inline_auto_link(text)
Chris@909: text.gsub!(AUTO_LINK_RE) do
Chris@909: all, leading, proto, url, post = $&, $1, $2, $3, $6
Chris@909: if leading =~ /=]?/
Chris@909: # don't replace URL's that are already linked
Chris@909: # and URL's prefixed with ! !> !< != (textile images)
Chris@909: all
Chris@909: else
Chris@909: # Idea below : an URL with unbalanced parethesis and
Chris@909: # ending by ')' is put into external parenthesis
Chris@909: if ( url[-1]==?) and ((url.count("(") - url.count(")")) < 0 ) )
Chris@909: url=url[0..-2] # discard closing parenth from url
Chris@909: post = ")"+post # add closing parenth to post
Chris@909: end
Chris@909: tag = content_tag('a', proto + url, :href => "#{proto=="www."?"http://www.":proto}#{url}", :class => 'external')
Chris@909: %(#{leading}#{tag}#{post})
Chris@909: end
Chris@909: end
Chris@909: end
Chris@909:
Chris@909: # Turns all email addresses into clickable links (code from Rails).
Chris@909: def inline_auto_mailto(text)
Chris@909: text.gsub!(/([\w\.!#\$%\-+.]+@[A-Za-z0-9\-]+(\.[A-Za-z0-9\-]+)+)/) do
Chris@909: mail = $1
Chris@909: if text.match(/]*>(.*)(#{Regexp.escape(mail)})(.*)<\/a>/)
Chris@909: mail
Chris@909: else
Chris@909: content_tag('a', mail, :href => "mailto:#{mail}", :class => "email")
Chris@909: end
Chris@909: end
Chris@909: end
Chris@909: end
Chris@909: end
Chris@909: end
Chris@909: end