"" "fo\"obar" "fo""obar" "foo\ bar" '' 'fo\'obar' 'fo''obar' 'foo\ bar' ---------------------------------------------------- [ ["string", "\"\""], ["string", "\"fo\\\"obar\""], ["string", "\"fo\"\"obar\""], ["string", "\"foo\\\r\nbar\""], ["string", "''"], ["string", "'fo\\'obar'"], ["string", "'fo''obar'"], ["string", "'foo\\\r\nbar'"] ] ---------------------------------------------------- Checks for strings.