123 lines
4.2 KiB
Ruby
123 lines
4.2 KiB
Ruby
require 'redcloth'
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require 'coderay'
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module Redmine
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module WikiFormatting
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private
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class TextileFormatter < RedCloth
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RULES = [:inline_auto_link, :inline_auto_mailto, :textile, :inline_toc]
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def initialize(*args)
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super
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self.hard_breaks=true
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end
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def to_html
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@toc = []
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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 />" ) 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, $1).html(:escape => false, :line_numbers => :inline)
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end
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content
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end
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end
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end
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# Patch to add 'table of content' support to RedCloth
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def textile_p_withtoc(tag, atts, cite, content)
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if tag =~ /^h(\d)$/
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@toc << [$1.to_i, content]
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end
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content = "<a name=\"#{@toc.length}-#{content}\" class=\"wiki-page\"></a>" + content
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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 $1 == '>'
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out = "<div class=\"#{div_class}\">"
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@toc.each_with_index do |heading, index|
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out << "<a href=\"##{index+1}-#{heading.last}\" class=\"heading#{heading.first}\">#{heading.last}</a>"
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end
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out << '</div>'
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out
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end
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end
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AUTO_LINK_RE = %r{
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( # leading text
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<\w+.*?>| # leading HTML tag, or
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[^=<>!:'"/]| # leading punctuation, or
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^ # beginning of line
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)
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(
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(?:https?://)| # protocol spec, or
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(?:www\.) # www.*
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)
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(
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[-\w]+ # subdomain or domain
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(?:\.[-\w]+)* # remaining subdomains or domain
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(?::\d+)? # port
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(?:/(?:(?:[~\w\+%-]|(?:[,.;:][^\s$]))+)?)* # path
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(?:\?[\w\+%&=.;-]+)? # query string
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(?:\#[\w\-]*)? # trailing anchor
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)
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([[:punct:]]|\s|<|$) # trailing text
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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, a, b, c, d = $&, $1, $2, $3, $4
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if a =~ /<a\s/i || a =~ /![<>=]?/
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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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text = b + c
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%(#{a}<a href="#{b=="www."?"http://www.":b}#{c}">#{text}</a>#{d})
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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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text = $1
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%{<a href="mailto:#{$1}" class="email">#{text}</a>}
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end
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end
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end
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public
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def self.to_html(text, options = {})
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TextileFormatter.new(text).to_html
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end
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end
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end
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