require'erb'classERBmoduleUtilHTML_ESCAPE={'&'=>'&','>'=>'>','<'=>'<','"'=>'"'}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 > 0 & a < 10?defhtml_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?defjson_escape(s)s.to_s.gsub(/[&"><]/){|special|JSON_ESCAPE[special]}endaliasjjson_escapemodule_function:jmodule_function:json_escapeendend