......................
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Ran 22 tests in 0.006s

OK
7

--- echo \" \\ hi` ---

(token id:Id.Backtick_Other val:'echo ' span_id:0)
(token id:Id.Backtick_Quoted val:'\\"' span_id:1)
(token id:Id.Backtick_Other val:' ' span_id:2)
(token id:Id.Backtick_Quoted val:'\\\\' span_id:3)
(token id:Id.Backtick_Other val:' hi' span_id:4)
(token id:Id.Backtick_Right val:'`' span_id:5)
(token id:Id.Eof_Real val:'' span_id:6)

--- ` ---

(token id:Id.Backtick_Right val:'`' span_id:0)
(token id:Id.Eof_Real val:'' span_id:1)

---  ---

(token id:Id.Eof_Real val:'' span_id:0)
(token id:Id.Char_Literals val:'foo bar' span_id:0)
(token id:Id.Char_OneChar val:'\\n' span_id:1)

--- @[ ] ---

(token id:Id.Left_AtBracket val:'@[' span_id:0)
(token id:Id.Ignored_Space val:' ' span_id:1)
(token id:Id.Op_RBracket val:']' span_id:2)
(token id:Id.Eof_Real val:'' span_id:3)

--- hello %s\n ---

(token id:Id.Char_Literals val:'hello ' span_id:0)
(token id:Id.Format_Percent val:'%' span_id:1)
(token id:Id.Char_Literals val:s span_id:2)
(token id:Id.Char_OneChar val:'\\n' span_id:3)
(token id:Id.Eof_Real val:'' span_id:4)

--- %% percent %%\377 ---

(token id:Id.Format_EscapedPercent val:'%%' span_id:0)
(token id:Id.Char_Literals val:' percent ' span_id:1)
(token id:Id.Format_EscapedPercent val:'%%' span_id:2)
(token id:Id.Char_Octal3 val:'\\377' span_id:3)
(token id:Id.Eof_Real val:'' span_id:4)

--- -3.3f ---

(token id:Id.Format_Flag val:- span_id:0)
(token id:Id.Format_Num val:3 span_id:1)
(token id:Id.Format_Dot val:. span_id:2)
(token id:Id.Format_Num val:3 span_id:3)
(token id:Id.Format_Type val:f span_id:4)
(token id:Id.Eof_Real val:'' span_id:5)

--- 03d ---

(token id:Id.Format_Flag val:0 span_id:0)
(token id:Id.Format_Num val:3 span_id:1)
(token id:Id.Format_Type val:d span_id:2)
(token id:Id.Eof_Real val:'' span_id:3)
(token id:Id.Left_SingleQuoteRaw val:"'" span_id:0)
[(293, 'a'), (294, '..'), (293, 'z')]
[(292, '100'), (294, '..'), (292, '300')]
[(292, '-300'), (294, '..'), (292, '-100'), (294, '..'), (292, '1')]
[(292, '1'), (295, '.'), (292, '3')]
[(293, 'a'), (293, 'a')]
[(102, 'newline '), (95, '\\n'), (102, ' NUL '), (95, '\\0'), (102, ' octal '), (99, '\\0377'), (102, ' hex '), (97, '\\x00')]
[(102, 'unicode '), (100, '\\u0065'), (102, ' '), (101, '\\U00000065')]
[(103, '\\'), (102, 'd '), (95, '\\e'), (102, ' '), (95, '\\f'), (102, ' '), (103, '\\'), (102, 'g')]
<function _MatchEchoToken_Fast at 0x7fcc54f6c410>
[(42, '['), (42, '!'), (42, 'abc]')]
[(42, '${'), (42, '!'), (42, 'indirect}')]
[(42, '$'), (42, '!'), (42, 'x')]
[(42, '!'), (42, '(foo|bar)')]
[(42, 'echo hi')]
[(42, 'echo '), (39, '!!'), (42, ' '), (39, '!*'), (42, ' '), (39, '!^'), (42, ' '), (39, '!$')]
[(42, 'echo '), (42, '\\!'), (42, '!')]
[(42, 'echo '), (40, '!3'), (42, '...')]
[(42, 'echo '), (40, '!-5'), (42, '...')]
[(42, 'echo '), (41, '!x/foo.py '), (42, 'bar')]
---
[(42, 'echo '), (42, "'!!'"), (42, ' $'), (42, "'!!'"), (42, ' ')]
[(42, 'echo '), (42, "'!! ")]
[(42, 'echo '), (42, "\\'"), (42, ' '), (39, '!!'), (42, ' ')]
[(290, 'foo')]
[(286, '\\h'), (290, ' '), (286, '\\w'), (290, ' '), (286, '\\$')]
P '[^\\\\\\0]+'