instiki/vendor/rails/actionpack/lib/action_view/erb/util.rb
Jacques Distler 4e14ccc74d Instiki 0.16.3: Rails 2.3.0
Instiki now runs on the Rails 2.3.0 Candidate Release.
Among other improvements, this means that it now 
automagically selects between WEBrick and Mongrel.

Just run

    ./instiki --daemon
2009-02-04 14:26:08 -06:00

39 lines
1.1 KiB
Ruby

require 'erb'
class ERB
module Util
HTML_ESCAPE = { '&' => '&amp;', '>' => '&gt;', '<' => '&lt;', '"' => '&quot;' }
JSON_ESCAPE = { '&' => '\u0026', '>' => '\u003E', '<' => '\u003C' }
# A utility method for escaping HTML tag characters.
# This method is also aliased as <tt>h</tt>.
#
# In your ERb templates, use this method to escape any unsafe content. For example:
# <%=h @person.name %>
#
# ==== Example:
# puts html_escape("is a > 0 & a < 10?")
# # => is a &gt; 0 &amp; a &lt; 10?
def html_escape(s)
s.to_s.gsub(/[&"><]/) { |special| HTML_ESCAPE[special] }
end
# A utility method for escaping HTML entities in JSON strings.
# This method is also aliased as <tt>j</tt>.
#
# In your ERb templates, use this method to escape any HTML entities:
# <%=j @person.to_json %>
#
# ==== Example:
# puts json_escape("is a > 0 & a < 10?")
# # => is a \u003E 0 \u0026 a \u003C 10?
def json_escape(s)
s.to_s.gsub(/[&"><]/) { |special| JSON_ESCAPE[special] }
end
alias j json_escape
module_function :j
module_function :json_escape
end
end