re = /^(?'commodity'02)_(?'market'\w{3,})_(?'tenortype'Q)(?'offset'[1-9][0-9]?)?_(?'derivative'PHY|FUT) (?'period'Q)-(?'year'\d{4})-\b(?'month'[1-4])\b$/m
str = '02_AUT_Q_PHY Q-2015-1
02_GASPOOL_H_Q_PHY Q-2015-2
02_GASPOOL_L_Q_PHY Q-2015-3
02_NBP_Q_PHY Q-2015-4
02_MGP_Q_PHY Q-2015-1
02_NCG_H_Q_PHY Q-2015-2
02_NCG_L_Q_PHY Q-2015-3
02_OTE_Q1_PHY Q-2015-4
02_POLVP_Q1_PHY Q-2015-1
02_PEGN_Q1_PHY Q-2015-2
02_SVKVP_Q1_PHY Q-2015-3
02_TTF_H_Q2_PHY Q-2015-4
02_ZEEBRUGGE_H_Q9_PHY Q-2015-1
02_ZTP_H_Q10_PHY Q-2015-2
02_ZTP_L_Q99_PHY Q-2015-3'
# 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