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rails--rails/guides/rails_guides/textile_extensions.rb
2012-03-17 08:32:49 -07:00

63 lines
1.7 KiB
Ruby

require 'active_support/core_ext/object/inclusion'
module RailsGuides
module TextileExtensions
def notestuff(body)
# The following regexp detects special labels followed by a
# paragraph, perhaps at the end of the document.
#
# It is important that we do not eat more than one newline
# because formatting may be wrong otherwise. For example,
# if a bulleted list follows the first item is not rendered
# as a list item, but as a paragraph starting with a plain
# asterisk.
body.gsub!(/^(TIP|IMPORTANT|CAUTION|WARNING|NOTE|INFO)[.:](.*?)(\n(?=\n)|\Z)/m) do |m|
css_class = case $1
when 'CAUTION', 'IMPORTANT'
'warning'
when 'TIP'
'info'
else
$1.downcase
end
%Q(<div class="#{css_class}"><p>#{$2.strip}</p></div>)
end
end
def plusplus(body)
body.gsub!(/\+(.*?)\+/) do |m|
"<notextile><tt>#{$1}</tt></notextile>"
end
# The real plus sign
body.gsub!('<plus>', '+')
end
def brush_for(code_type)
case code_type
when 'ruby', 'sql', 'plain'
code_type
when 'erb'
'ruby; html-script: true'
when 'html'
'xml' # html is understood, but there are .xml rules in the CSS
else
'plain'
end
end
def code(body)
body.gsub!(%r{<(yaml|shell|ruby|erb|html|sql|plain)>(.*?)</\1>}m) do |m|
<<HTML
<notextile>
<div class="code_container">
<pre class="brush: #{brush_for($1)}; gutter: false; toolbar: false">
#{ERB::Util.h($2).strip}
</pre>
</div>
</notextile>
HTML
end
end
end
end