re = /https?:\/\/(?:www\.)?decathlon\.co\.id\/([\w.'_-]+(\/([\w-]+))+?).html/
str = 'https://www.decathlon.co.id/in/p/tas-quechua/301684-73330-nh100-10l-country-walking-backpack-black.html'
# Print the match result
str.match(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