Results for array.test.sh

casebashmkshoshdescription
0pass pass pass SETUP
1pass pass pass "${a[@]}" and "${a[*]}"
2pass pass pass ${a[@]} and ${a[*]}
3pass pass pass Empty array tests
4pass BUG pass local array
details
5pass pass pass Command with with word splitting in array
6pass ok FAIL space before ( in array initialization
detailsdetails
7pass pass pass empty array
8pass pass pass array with empty string
9pass pass FAIL Assign to array index without initialization
details
10pass pass pass Retrieve index
11pass pass pass Retrieve out of bounds index
12pass pass pass Retrieve index that is a variable
13pass pass pass Retrieve index that is a variable without $
14pass pass pass Retrieve index that is a command sub
15pass pass FAIL Retrieve all indices with !
details
16pass ok FAIL Retrieve indices for one value
detailsdetails
17pass ok FAIL Retrieve indices without []
detailsdetails
18pass pass pass All elements unquoted
19pass pass pass All elements quoted
20pass pass pass $*
21pass pass pass "$*"
22pass pass pass Interpolate array into array
23pass ok ok Exporting array doesn't do anything, not even first element
detailsdetails
24pass BUG FAIL Env with array
detailsdetails
25pass pass FAIL Set element
details
26pass pass FAIL Set element with var ref
details
27pass pass FAIL Set element with array ref
details
28pass N-I FAIL Slice of array with [@]
detailsdetails
29pass N-I FAIL Negative slice
detailsdetails
30pass N-I FAIL Slice with arithmetic
detailsdetails
31pass pass pass Number of elements
32pass pass pass Length of an element
33pass pass pass Iteration
34pass pass pass glob within array yields separate elements
35pass pass FAIL declare array and then append
details
36pass ok pass Array syntax in wrong place
details
37pass pass pass Empty array with :-
38ok ok ok Single array with :-
detailsdetailsdetails
39pass N-I pass Stripping a whole array unquoted
details
40pass N-I pass Stripping a whole array quoted
details
41BUG ok FAIL Multiple subscripts not allowed
detailsdetailsdetails
42BUG ok pass Length op, index op, then transform op is not allowed
detailsdetails
43BUG BUG pass Array subscript not allowed on string
detailsdetails
44pass pass pass Create a "user" array out of the argv array
45pass pass pass Tilde expansion within array
46pass pass pass Brace Expansion within Array
47pass pass pass array default

108 passed, 11 ok, 5 known unimplemented, 6 known bugs, 14 failed, 0 skipped

Details on runs that didn't PASS

mksh4 local array

stdout:
stderr: 
/bin/mksh: <stdin>[2]: syntax error: '(' unexpected
mksh6 space before ( in array initialization

stdout:
1
stderr:
osh6 space before ( in array initialization

[osh status] Expected 2, got 1

stdout:
stderr: 
Traceback (most recent call last):
  File "bin/osh", line 388, in <module>
    sys.exit(main(sys.argv))
  File "bin/osh", line 378, in main
    return OshMain(main_argv)
  File "bin/osh", line 296, in OshMain
    node = c_parser.ParseWholeFile()
  File "/home/andy/git/oil2/bin/../osh/cmd_parse.py", line 1531, in ParseWholeFile
    if not self._NewlineOk(): return None
  File "/home/andy/git/oil2/bin/../osh/cmd_parse.py", line 185, in _NewlineOk
    if not self._Peek():
  File "/home/andy/git/oil2/bin/../osh/cmd_parse.py", line 148, in _Peek
    w = self.w_parser.ReadWord(self.next_lex_mode)
  File "/home/andy/git/oil2/bin/../osh/word_parse.py", line 1098, in ReadWord
    w, need_more = self._ReadWord(lex_mode)
  File "/home/andy/git/oil2/bin/../osh/word_parse.py", line 1059, in _ReadWord
    w = self._ReadCompoundWord(lex_mode=lex_mode)
  File "/home/andy/git/oil2/bin/../osh/word_parse.py", line 893, in _ReadCompoundWord
    part2 = self._ReadArrayLiteralPart()
  File "/home/andy/git/oil2/bin/../osh/word_parse.py", line 838, in _ReadArrayLiteralPart
    assert self.cur_token.id == Id.Op_LParen, self.cur_token
AssertionError: (token id:WS_Space val:" " span_id:1)
osh9 Assign to array index without initialization

[osh stdout] Expected b"['9']\n", got b'[]\n'

stdout:
[]
stderr:
Unexpected error in execvpe('b[2]=9', ['b[2]=9'], ...): [Errno 2] No such file or directory
osh15 Retrieve all indices with !

[osh stdout] Expected b"['0', '1']\n", got b''

stdout:
stderr: 
Traceback (most recent call last):
  File "bin/osh", line 388, in <module>
    sys.exit(main(sys.argv))
  File "bin/osh", line 378, in main
    return OshMain(main_argv)
  File "bin/osh", line 337, in OshMain
    status = ex.Execute(node)
  File "/home/andy/git/oil2/bin/../core/cmd_exec.py", line 1111, in Execute
    status = self._Execute(node)
  File "/home/andy/git/oil2/bin/../core/cmd_exec.py", line 974, in _Execute
    status = self._Execute(child)  # last status wins
  File "/home/andy/git/oil2/bin/../core/cmd_exec.py", line 869, in _Execute
    argv = self.ev.EvalWordSequence(words)
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 1056, in EvalWordSequence
    return self._EvalWordSequence(words)
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 1039, in _EvalWordSequence
    args = self._EvalWordAndReframe(w)
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 992, in _EvalWordAndReframe
    part_vals = self._EvalParts(word)
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 885, in _EvalParts
    for v in self.part_ev._EvalWordPart(p, quoted=quoted):
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 803, in _EvalWordPart
    return [self._EvalDoubleQuotedPart(part)]
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 576, in _EvalDoubleQuotedPart
    for part_val in self._EvalWordPart(p, quoted=True):
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 829, in _EvalWordPart
    return self._EvalBracedVarSub(part, quoted)
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 728, in _EvalBracedVarSub
    val = self._ApplyPrefixOp(val, part.prefix_op)
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 428, in _ApplyPrefixOp
    raise NotImplementedError(op_id)
NotImplementedError: VSub_Bang
mksh16 Retrieve indices for one value

stdout:
['1']
stderr:
osh16 Retrieve indices for one value

[osh stdout] Expected b"['']\n", got b''
[osh status] Expected 0, got 1

stdout:
stderr: 
Traceback (most recent call last):
  File "bin/osh", line 388, in <module>
    sys.exit(main(sys.argv))
  File "bin/osh", line 378, in main
    return OshMain(main_argv)
  File "bin/osh", line 337, in OshMain
    status = ex.Execute(node)
  File "/home/andy/git/oil2/bin/../core/cmd_exec.py", line 1111, in Execute
    status = self._Execute(node)
  File "/home/andy/git/oil2/bin/../core/cmd_exec.py", line 974, in _Execute
    status = self._Execute(child)  # last status wins
  File "/home/andy/git/oil2/bin/../core/cmd_exec.py", line 869, in _Execute
    argv = self.ev.EvalWordSequence(words)
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 1056, in EvalWordSequence
    return self._EvalWordSequence(words)
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 1039, in _EvalWordSequence
    args = self._EvalWordAndReframe(w)
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 992, in _EvalWordAndReframe
    part_vals = self._EvalParts(word)
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 885, in _EvalParts
    for v in self.part_ev._EvalWordPart(p, quoted=quoted):
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 803, in _EvalWordPart
    return [self._EvalDoubleQuotedPart(part)]
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 576, in _EvalDoubleQuotedPart
    for part_val in self._EvalWordPart(p, quoted=True):
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 829, in _EvalWordPart
    return self._EvalBracedVarSub(part, quoted)
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 728, in _EvalBracedVarSub
    val = self._ApplyPrefixOp(val, part.prefix_op)
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 428, in _ApplyPrefixOp
    raise NotImplementedError(op_id)
NotImplementedError: VSub_Bang
mksh17 Retrieve indices without []

stdout:
['a']
stderr:
osh17 Retrieve indices without []

[osh stdout] Expected b"['']\n", got b''

stdout:
stderr: 
Traceback (most recent call last):
  File "bin/osh", line 388, in <module>
    sys.exit(main(sys.argv))
  File "bin/osh", line 378, in main
    return OshMain(main_argv)
  File "bin/osh", line 337, in OshMain
    status = ex.Execute(node)
  File "/home/andy/git/oil2/bin/../core/cmd_exec.py", line 1111, in Execute
    status = self._Execute(node)
  File "/home/andy/git/oil2/bin/../core/cmd_exec.py", line 974, in _Execute
    status = self._Execute(child)  # last status wins
  File "/home/andy/git/oil2/bin/../core/cmd_exec.py", line 869, in _Execute
    argv = self.ev.EvalWordSequence(words)
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 1056, in EvalWordSequence
    return self._EvalWordSequence(words)
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 1039, in _EvalWordSequence
    args = self._EvalWordAndReframe(w)
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 992, in _EvalWordAndReframe
    part_vals = self._EvalParts(word)
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 885, in _EvalParts
    for v in self.part_ev._EvalWordPart(p, quoted=quoted):
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 803, in _EvalWordPart
    return [self._EvalDoubleQuotedPart(part)]
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 576, in _EvalDoubleQuotedPart
    for part_val in self._EvalWordPart(p, quoted=True):
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 829, in _EvalWordPart
    return self._EvalBracedVarSub(part, quoted)
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 728, in _EvalBracedVarSub
    val = self._ApplyPrefixOp(val, part.prefix_op)
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 428, in _ApplyPrefixOp
    raise NotImplementedError(op_id)
NotImplementedError: VSub_Bang
mksh23 Exporting array doesn't do anything, not even first element

stdout:
stderr: 
/bin/mksh: <stdin>[1]: syntax error: '(' unexpected
osh23 Exporting array doesn't do anything, not even first element

stdout:
stderr: 
Line 1 of '<stdin>'
  export PYTHONPATH=(a b c)
                     ^
Unexpected array literal: (CompoundWord
  parts: [
    (ArrayLiteralPart
      words: [
        (CompoundWord parts:[(LiteralPart token:(token id:Lit_Chars val:a span_id:4))])
        (CompoundWord parts:[(LiteralPart token:(token id:Lit_Chars val:b span_id:6))])
        (CompoundWord parts:[(LiteralPart token:(token id:Lit_Chars val:c span_id:8))])
      ]
    )
  ]
)
---
Line 0 of '<unknown>'
  <token had no position info>
NO COL
Error parsing AndOr in ParseCommandTerm
---
mksh24 Env with array

stdout:
stderr: 
/bin/mksh: <stdin>[1]: syntax error: '(' unexpected
osh24 Env with array

[osh stdout] Expected b'a\n(b b)\n', got b''

stdout:
stderr: 
Line 1 of '<stdin>'
  A=a B=(b b) printenv.py A B
         ^
Unexpected array literal in binding: (CompoundWord
  parts: [
    (ArrayLiteralPart
      words: [
        (CompoundWord parts:[(LiteralPart token:(token id:Lit_Chars val:b span_id:5))])
        (CompoundWord parts:[(LiteralPart token:(token id:Lit_Chars val:b span_id:7))])
      ]
    )
  ]
)
---
Line 0 of '<unknown>'
  <token had no position info>
NO COL
Error parsing AndOr in ParseCommandTerm
---
osh25 Set element

[osh stdout] Expected b"['9', '2 3']\n", got b"['1', '2 3']\n"

stdout:
['1', '2 3']
stderr:
Unexpected error in execvpe('a[0]=9', ['a[0]=9'], ...): [Errno 2] No such file or directory
osh26 Set element with var ref

[osh stdout] Expected b"['9', '2 3']\n", got b"['1', '2 3']\n"

stdout:
['1', '2 3']
stderr:
Unexpected error in execvpe('a[0]=9', ['a[0]=9'], ...): [Errno 2] No such file or directory
osh27 Set element with array ref

[osh stdout] Expected b"['1', '9']\n", got b"['1', '2 3']\n"

stdout:
['1', '2 3']
stderr:
Unexpected error in execvpe('a[1]=9', ['a[1]=9'], ...): [Errno 2] No such file or directory
mksh28 Slice of array with [@]

stdout:
stderr: 
/bin/mksh: <stdin>[2]: ${a[@]: 1:2}": bad substitution
osh28 Slice of array with [@]

[osh stdout] Expected b"['2', '3']\n", got b''

stdout:
stderr: 
Traceback (most recent call last):
  File "bin/osh", line 388, in <module>
    sys.exit(main(sys.argv))
  File "bin/osh", line 378, in main
    return OshMain(main_argv)
  File "bin/osh", line 337, in OshMain
    status = ex.Execute(node)
  File "/home/andy/git/oil2/bin/../core/cmd_exec.py", line 1111, in Execute
    status = self._Execute(node)
  File "/home/andy/git/oil2/bin/../core/cmd_exec.py", line 974, in _Execute
    status = self._Execute(child)  # last status wins
  File "/home/andy/git/oil2/bin/../core/cmd_exec.py", line 869, in _Execute
    argv = self.ev.EvalWordSequence(words)
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 1056, in EvalWordSequence
    return self._EvalWordSequence(words)
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 1039, in _EvalWordSequence
    args = self._EvalWordAndReframe(w)
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 992, in _EvalWordAndReframe
    part_vals = self._EvalParts(word)
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 885, in _EvalParts
    for v in self.part_ev._EvalWordPart(p, quoted=quoted):
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 803, in _EvalWordPart
    return [self._EvalDoubleQuotedPart(part)]
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 576, in _EvalDoubleQuotedPart
    for part_val in self._EvalWordPart(p, quoted=True):
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 829, in _EvalWordPart
    return self._EvalBracedVarSub(part, quoted)
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 733, in _EvalBracedVarSub
    if LookupKind(part.suffix_op.op_id) == Kind.VTest:
AttributeError: 'Slice' object has no attribute 'op_id'
mksh29 Negative slice

stdout:
stderr: 
/bin/mksh: <stdin>[2]: ${a[@]: (-2):1}": bad substitution
osh29 Negative slice

[osh stdout] Expected b"['2']\n", got b''

stdout:
stderr: 
Traceback (most recent call last):
  File "bin/osh", line 388, in <module>
    sys.exit(main(sys.argv))
  File "bin/osh", line 378, in main
    return OshMain(main_argv)
  File "bin/osh", line 337, in OshMain
    status = ex.Execute(node)
  File "/home/andy/git/oil2/bin/../core/cmd_exec.py", line 1111, in Execute
    status = self._Execute(node)
  File "/home/andy/git/oil2/bin/../core/cmd_exec.py", line 974, in _Execute
    status = self._Execute(child)  # last status wins
  File "/home/andy/git/oil2/bin/../core/cmd_exec.py", line 869, in _Execute
    argv = self.ev.EvalWordSequence(words)
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 1056, in EvalWordSequence
    return self._EvalWordSequence(words)
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 1039, in _EvalWordSequence
    args = self._EvalWordAndReframe(w)
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 992, in _EvalWordAndReframe
    part_vals = self._EvalParts(word)
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 885, in _EvalParts
    for v in self.part_ev._EvalWordPart(p, quoted=quoted):
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 803, in _EvalWordPart
    return [self._EvalDoubleQuotedPart(part)]
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 576, in _EvalDoubleQuotedPart
    for part_val in self._EvalWordPart(p, quoted=True):
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 829, in _EvalWordPart
    return self._EvalBracedVarSub(part, quoted)
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 733, in _EvalBracedVarSub
    if LookupKind(part.suffix_op.op_id) == Kind.VTest:
AttributeError: 'Slice' object has no attribute 'op_id'
mksh30 Slice with arithmetic

stdout:
stderr: 
/bin/mksh: <stdin>[3]: ${a[@]:i-4:2}": bad substitution
osh30 Slice with arithmetic

[osh stdout] Expected b"['2', '3']\n", got b''

stdout:
stderr: 
Traceback (most recent call last):
  File "bin/osh", line 388, in <module>
    sys.exit(main(sys.argv))
  File "bin/osh", line 378, in main
    return OshMain(main_argv)
  File "bin/osh", line 337, in OshMain
    status = ex.Execute(node)
  File "/home/andy/git/oil2/bin/../core/cmd_exec.py", line 1111, in Execute
    status = self._Execute(node)
  File "/home/andy/git/oil2/bin/../core/cmd_exec.py", line 974, in _Execute
    status = self._Execute(child)  # last status wins
  File "/home/andy/git/oil2/bin/../core/cmd_exec.py", line 869, in _Execute
    argv = self.ev.EvalWordSequence(words)
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 1056, in EvalWordSequence
    return self._EvalWordSequence(words)
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 1039, in _EvalWordSequence
    args = self._EvalWordAndReframe(w)
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 992, in _EvalWordAndReframe
    part_vals = self._EvalParts(word)
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 885, in _EvalParts
    for v in self.part_ev._EvalWordPart(p, quoted=quoted):
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 803, in _EvalWordPart
    return [self._EvalDoubleQuotedPart(part)]
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 576, in _EvalDoubleQuotedPart
    for part_val in self._EvalWordPart(p, quoted=True):
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 829, in _EvalWordPart
    return self._EvalBracedVarSub(part, quoted)
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 733, in _EvalBracedVarSub
    if LookupKind(part.suffix_op.op_id) == Kind.VTest:
AttributeError: 'Slice' object has no attribute 'op_id'
osh35 declare array and then append

[osh stdout] Expected b"['a', 'b', 'c']\n", got b''

stdout:
stderr: 
Traceback (most recent call last):
  File "bin/osh", line 388, in <module>
    sys.exit(main(sys.argv))
  File "bin/osh", line 378, in main
    return OshMain(main_argv)
  File "bin/osh", line 337, in OshMain
    status = ex.Execute(node)
  File "/home/andy/git/oil2/bin/../core/cmd_exec.py", line 1111, in Execute
    status = self._Execute(node)
  File "/home/andy/git/oil2/bin/../core/cmd_exec.py", line 974, in _Execute
    status = self._Execute(child)  # last status wins
  File "/home/andy/git/oil2/bin/../core/cmd_exec.py", line 940, in _Execute
    ok, val = self.ev.EvalWordToAny(pair.rhs)
  File "/home/andy/git/oil2/bin/../core/word_eval.py", line 934, in EvalWordToAny
    if (len(word.parts) == 1 and 
AttributeError: 'NoneType' object has no attribute 'parts'
mksh36 Array syntax in wrong place

stdout:
stderr: 
/bin/mksh: <stdin>[1]: syntax error: '(' unexpected
bash38 Single array with :-

stdout:
['none', 'x', '']
stderr:
mksh38 Single array with :-

stdout:
['none', 'x', 'none']
stderr:
osh38 Single array with :-

stdout:
['x', '']
stderr:
mksh39 Stripping a whole array unquoted

stdout:
stderr: 
/bin/mksh: <stdin>[2]: ${files[@]%.c}: bad substitution
mksh40 Stripping a whole array quoted

stdout:
stderr: 
/bin/mksh: <stdin>[2]: ${files[@]%.c}": bad substitution
bash41 Multiple subscripts not allowed

stdout:
['123', '123']
stderr:
mksh41 Multiple subscripts not allowed

stdout:
stderr: 
/bin/mksh: <stdin>[2]: ${a[0][0]}": bad substitution
osh41 Multiple subscripts not allowed

[osh status] Expected 2, got 1

stdout:
stderr: 
Traceback (most recent call last):
  File "bin/osh", line 388, in <module>
    sys.exit(main(sys.argv))
  File "bin/osh", line 378, in main
    return OshMain(main_argv)
  File "bin/osh", line 296, in OshMain
    node = c_parser.ParseWholeFile()
  File "/home/andy/git/oil2/bin/../osh/cmd_parse.py", line 1540, in ParseWholeFile
    node = self.ParseCommandTerm()
  File "/home/andy/git/oil2/bin/../osh/cmd_parse.py", line 1448, in ParseCommandTerm
    child = self.ParseAndOr()
  File "/home/andy/git/oil2/bin/../osh/cmd_parse.py", line 1313, in ParseAndOr
    left = self.ParsePipeline()
  File "/home/andy/git/oil2/bin/../osh/cmd_parse.py", line 1249, in ParsePipeline
    child = self.ParseCommand()
  File "/home/andy/git/oil2/bin/../osh/cmd_parse.py", line 1231, in ParseCommand
    return self.ParseSimpleCommand()  # echo foo
  File "/home/andy/git/oil2/bin/../osh/cmd_parse.py", line 544, in ParseSimpleCommand
    result = self._ScanSimpleCommand()
  File "/home/andy/git/oil2/bin/../osh/cmd_parse.py", line 351, in _ScanSimpleCommand
    if not self._Peek(): return None
  File "/home/andy/git/oil2/bin/../osh/cmd_parse.py", line 148, in _Peek
    w = self.w_parser.ReadWord(self.next_lex_mode)
  File "/home/andy/git/oil2/bin/../osh/word_parse.py", line 1098, in ReadWord
    w, need_more = self._ReadWord(lex_mode)
  File "/home/andy/git/oil2/bin/../osh/word_parse.py", line 1059, in _ReadWord
    w = self._ReadCompoundWord(lex_mode=lex_mode)
  File "/home/andy/git/oil2/bin/../osh/word_parse.py", line 905, in _ReadCompoundWord
    part = self._ReadLeftParts()
  File "/home/andy/git/oil2/bin/../osh/word_parse.py", line 513, in _ReadLeftParts
    return self._ReadDoubleQuotedPart()
  File "/home/andy/git/oil2/bin/../osh/word_parse.py", line 575, in _ReadDoubleQuotedPart
    part = self._ReadDoubleQuotedLeftParts()
  File "/home/andy/git/oil2/bin/../osh/word_parse.py", line 499, in _ReadDoubleQuotedLeftParts
    return self._ReadBracedBracedVarSub(d_quoted=True)
  File "/home/andy/git/oil2/bin/../osh/word_parse.py", line 454, in _ReadBracedBracedVarSub
    part = self._ParseVarExpr(arg_lex_mode)
  File "/home/andy/git/oil2/bin/../osh/word_parse.py", line 332, in _ParseVarExpr
    raise AssertionError("Invalid op token %s" % self.cur_token)
AssertionError: Invalid op token (token id:VOp2_LBracket val:"[" span_id:28)
bash42 Length op, index op, then transform op is not allowed

stdout:
3 3
stderr:
mksh42 Length op, index op, then transform op is not allowed

stdout:
stderr: 
/bin/mksh: <stdin>[2]: ${#a[0]/1/xxx}": bad substitution
bash43 Array subscript not allowed on string

stdout:
abc
stderr:
mksh43 Array subscript not allowed on string

stdout:
abc
stderr: