instance method REXML::DocType#name

name -> String[permalink][rdoc]

ルート要素名を返します。

document = REXML::Document.new(<<EOS)
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
         "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
EOS
doctype = document.doctype
p doctype.name # => "html"