re = /\d+x\d+/
str = 'https://video.twimg.com/ext_tw_video/841791481534803968/pu/vid/320x180/egCAExYQdRBw08fb.mp4
https://video.twimg.com/ext_tw_video/841791481534803968/pu/vid/1280x720/GVsCGddpL9QoO4_B.mp4
https://video.twimg.com/ext_tw_video/841791481534803968/pu/vid/640x360/33qcUEzFw-WS0inJ.mp4
https://video.twimg.com/ext_tw_video/640x360/pu/vid/841791481534803968/33qcUEzFw-WS0inJ.mp4'
# 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