re = /<h2>(.*?)<\/h2>(.*?)(?=<\w+>)/i
str = '<h2>1</h2>unstructed string1<h2>2</h2>unstructed string2<div>some data</div>'
# Print the match result
str.scan(re) do |match|
puts match.to_s
end
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Ruby, please visit: http://ruby-doc.org/core-2.2.0/Regexp.html