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Strip characters from between two delimiters

/ Published in: Ruby
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This regular expression used in Ruby will extract the characters between single or multi-character delimiters. It helps when you have strange delimiters such as \":delimeter1: text I want to grab goes here :delimiter2:\"

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  1. #Example row of data: 11/10/2010:Location: Home :Gender: M :Comment: I just wanted to say I had a great time at the party! :Email: [email protected]
  2.  
  3. file = File.new("data.dlm", "r")
  4. 	File.open('output.txt', 'w') do |f1| while (line = file.gets)
  5. 	sub_string = line.scan(/:Comment:([^<>]*):Email:/imu).flatten
  6. 	f1.puts sub_string
  7. 	end
  8. end
  9. file.close

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