re = /^(((\+|(00))3\d)|0)\d{9}$/m
str = 'OUI
0689553212
0789553212
+33689553212
+32689553212
0033689553212
0032689553212
NON
1234567890
012345678
+3301234567
+3689553212
003301234567
'
# 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