re = /([01]?[0-9]|2[0-3])(-([01]?[0-9]|2[0-3])(\/[0-9]*)?)?(,([01]?[0-9]|2[0-3])(-([01]?[0-9]|2[0-3])(\/[0-9]*)?)?)*/
str = '1-2/9,2-3/33,5,6'
# 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