re = /(\bWF(?!.*(NR|TS|CD|TX))(?!.*MS[0-9]{4}SU)[A-Z]{3,4}_[A-Z_]*\b)(?!\')/
str = '// YES
WFFGRP_FUNCTION_GROUP
WFUIDV_USERID_VALIDATION
WFNOTE_NOTE
WFRIMH_REQUEST_IMPLEMENTATION_HISTORY
WFUIDV_USERID_VALIDATION U
// NO
WFFGRP_TOKEN_NR
WFTQUE_CREATION_TS BETWEEN @StartDate AND @EndDate
\'WFSOMETHING\'
WFUIDV_MS1234SU
WFQUEUE
WFRQST_CREATE_SOURCE_TX
WFRQST_CREATE_SOURCE_TYPE_CD
WFRQST_LAST_UPDATE_TS'
# 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