array(7) {
  [0]=>
  string(14) "this is a_list"
  [1]=>
  string(7) " value1"
  [2]=>
  string(7) " Test__"
  [3]=>
  string(7) " string"
  [4]=>
  string(6) " Hello"
  [5]=>
  string(8) " world!_"
  [6]=>
  string(11) "parentheses"
}
array(2) {
  [0]=>
  string(14) "this is a_list"
  [1]=>
  string(28) " Hello, world!_(parentheses)"
}
array(4) {
  [0]=>
  string(54) "this is a_list: value1, Test__, string; Hello, world!_"
  [1]=>
  string(1) "("
  [2]=>
  string(11) "parentheses"
  [3]=>
  string(1) ")"
}
array(1) {
  [0]=>
  string(67) "this is a_list: value1, Test__, string; Hello, world!_(parentheses)"
}
array(10) {
  [0]=>
  string(1) " "
  [1]=>
  string(1) " "
  [2]=>
  string(2) ": "
  [3]=>
  string(2) ", "
  [4]=>
  string(2) ", "
  [5]=>
  string(2) "; "
  [6]=>
  string(2) ", "
  [7]=>
  string(1) "!"
  [8]=>
  string(1) "("
  [9]=>
  string(1) ")"
}