.
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Ran 1 test in 0.001s

OK
--- 'Aa b \\ a\\ b'
  <span_t Black 1> 2
  <span_t Delim 2> 3
  <span_t Black 1> 4
  <span_t Delim 2> 5
  <span_t Backslash 3> 6
  <span_t Black 1> 8
  <span_t Backslash 3> 9
  <span_t Black 1> 11
---
--- 'a b c '
  <span_t Black 1> 1
  <span_t Delim 2> 2
  <span_t Black 1> 3
  <span_t Delim 2> 4
  <span_t Black 1> 5
---