re = /^((?!WEBSITE1\.com|WEBSITE2\.com).)*$/m
str = 'Any line with HIGHLIGHTING is a match. Lines with no highlighting would be filtered out. This regex will filter out anything with an "WEBSITE1.com" or "WEBSITE2.com".
Hello World
Thing WEBSITE1.com
Thing D
Thing WEBSITE2.com
Thing C
'
# 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