Module: Banzai::Filter::Concerns::HtmlWriter

Extended by:
ActiveSupport::Concern
Included in:
References::ReferenceFilter
Defined in:
lib/banzai/filter/concerns/html_writer.rb

Instance Method Summary collapse

Instance Method Details

#write_opening_tag(tag_name, attributes) ⇒ Object

Write an opening tag with the given tag name and attributes.

The tag name and attribute names must not be user-specified; they are not validated.

The attribute values are always escaped in the appropriate manner; the contract is that whatever value goes in is the logical DOM value of the attribute that comes out.

i.e.:

“‘ruby html = write_opening_tag(tag, attrs) doc = Nokogiri::HTML.fragment(html) element = doc.child expect(element.to_h).to match(attrs) “`

This function should *never be changed*.



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# File 'lib/banzai/filter/concerns/html_writer.rb', line 26

def write_opening_tag(tag_name, attributes)
  s = +"<" << tag_name
  attributes.each do |attr_name, attr_value|
    next if attr_value.nil?

    s << " " << attr_name << "="
    s << '"' << CGI.escapeHTML(attr_value.to_s) << '"'
  end
  s << ">"
end