184 lines
7.0 KiB
Ruby
184 lines
7.0 KiB
Ruby
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# Redmine - project management software
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# Copyright (C) 2006-2008 Jean-Philippe Lang
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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require 'redcloth3'
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require 'coderay'
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module Redmine
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module WikiFormatting
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module Textile
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class Formatter < RedCloth3
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# auto_link rule after textile rules so that it doesn't break !image_url! tags
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RULES = [:textile, :block_markdown_rule, :inline_auto_link, :inline_auto_mailto, :inline_toc, :inline_macros]
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def initialize(*args)
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super
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self.hard_breaks=true
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self.no_span_caps=true
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end
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def to_html(*rules, &block)
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@toc = []
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@macros_runner = block
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super(*RULES).to_s
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end
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private
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# Patch for RedCloth. Fixed in RedCloth r128 but _why hasn't released it yet.
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# <a href="http://code.whytheluckystiff.net/redcloth/changeset/128">http://code.whytheluckystiff.net/redcloth/changeset/128</a>
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def hard_break( text )
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text.gsub!( /(.)\n(?!\n|\Z|>| *(>? *[#*=]+(\s|$)|[{|]))/, "\\1<br />\n" ) if hard_breaks
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end
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# Patch to add code highlighting support to RedCloth
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def smooth_offtags( text )
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unless @pre_list.empty?
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## replace <pre> content
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text.gsub!(/<redpre#(\d+)>/) do
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content = @pre_list[$1.to_i]
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if content.match(/<code\s+class="(\w+)">\s?(.+)/m)
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content = "<code class=\"#{$1} CodeRay\">" +
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CodeRay.scan($2, $1.downcase).html(:escape => false, :line_numbers => :inline)
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end
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content
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end
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end
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end
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# Patch to add 'table of content' support to RedCloth
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def textile_p_withtoc(tag, atts, cite, content)
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# removes wiki links from the item
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toc_item = content.gsub(/(\[\[|\]\])/, '')
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# removes styles
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# eg. %{color:red}Triggers% => Triggers
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toc_item.gsub! %r[%\{[^\}]*\}([^%]+)%], '\\1'
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# replaces non word caracters by dashes
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anchor = toc_item.gsub(%r{[^\w\s\-]}, '').gsub(%r{\s+(\-+\s*)?}, '-')
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unless anchor.blank?
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if tag =~ /^h(\d)$/
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@toc << [$1.to_i, anchor, toc_item]
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end
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atts << " id=\"#{anchor}\""
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content = content + "<a href=\"##{anchor}\" class=\"wiki-anchor\">¶</a>"
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end
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textile_p(tag, atts, cite, content)
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end
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alias :textile_h1 :textile_p_withtoc
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alias :textile_h2 :textile_p_withtoc
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alias :textile_h3 :textile_p_withtoc
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def inline_toc(text)
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text.gsub!(/<p>\{\{([<>]?)toc\}\}<\/p>/i) do
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div_class = 'toc'
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div_class << ' right' if $1 == '>'
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div_class << ' left' if $1 == '<'
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out = "<ul class=\"#{div_class}\">"
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@toc.each do |heading|
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level, anchor, toc_item = heading
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out << "<li class=\"heading#{level}\"><a href=\"##{anchor}\">#{toc_item}</a></li>\n"
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end
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out << '</ul>'
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out
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end
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end
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MACROS_RE = /
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(!)? # escaping
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(
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\{\{ # opening tag
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([\w]+) # macro name
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(\(([^\}]*)\))? # optional arguments
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\}\} # closing tag
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)
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/x unless const_defined?(:MACROS_RE)
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def inline_macros(text)
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text.gsub!(MACROS_RE) do
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esc, all, macro = $1, $2, $3.downcase
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args = ($5 || '').split(',').each(&:strip)
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if esc.nil?
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begin
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@macros_runner.call(macro, args)
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rescue => e
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"<div class=\"flash error\">Error executing the <strong>#{macro}</strong> macro (#{e})</div>"
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end || all
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else
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all
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end
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end
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end
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AUTO_LINK_RE = %r{
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( # leading text
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<\w+.*?>| # leading HTML tag, or
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[^=<>!:'"/]| # leading punctuation, or
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^ # beginning of line
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)
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(
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(?:https?://)| # protocol spec, or
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(?:ftp://)|
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(?:www\.) # www.*
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)
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(
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(\S+?) # url
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(\/)? # slash
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)
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([^\w\=\/;\(\)]*?) # post
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(?=<|\s|$)
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}x unless const_defined?(:AUTO_LINK_RE)
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# Turns all urls into clickable links (code from Rails).
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def inline_auto_link(text)
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text.gsub!(AUTO_LINK_RE) do
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all, leading, proto, url, post = $&, $1, $2, $3, $6
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if leading =~ /<a\s/i || leading =~ /![<>=]?/
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# don't replace URL's that are already linked
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# and URL's prefixed with ! !> !< != (textile images)
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all
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else
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# Idea below : an URL with unbalanced parethesis and
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# ending by ')' is put into external parenthesis
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if ( url[-1]==?) and ((url.count("(") - url.count(")")) < 0 ) )
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url=url[0..-2] # discard closing parenth from url
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post = ")"+post # add closing parenth to post
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end
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%(#{leading}<a class="external" href="#{proto=="www."?"http://www.":proto}#{url}">#{proto + url}</a>#{post})
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end
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end
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end
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# Turns all email addresses into clickable links (code from Rails).
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def inline_auto_mailto(text)
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text.gsub!(/([\w\.!#\$%\-+.]+@[A-Za-z0-9\-]+(\.[A-Za-z0-9\-]+)+)/) do
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mail = $1
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if text.match(/<a\b[^>]*>(.*)(#{Regexp.escape(mail)})(.*)<\/a>/)
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mail
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else
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%{<a href="mailto:#{mail}" class="email">#{mail}</a>}
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end
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end
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end
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end
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end
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end
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end
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