(command.CommandList
  children: [
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name name:json)
          op: assign_op.Equal
          rhs: 
            {
              (command_sub
                left_token: <Id.Left_DollarParen '$('>
                child: 
                  (command.Simple
                    redirects: [
                      (redir
                        op: <Id.Redir_Less '<'>
                        loc: (redir_loc.Fd fd:0)
                        arg: {<'/dev/stdin'>}
                      )
                    ]
                    do_fork: F
                  )
              )
            }
          spids: [3]
        )
        (assign_pair
          lhs: (sh_lhs_expr.Name name:oldlang)
          op: assign_op.Equal
          rhs: {($ Id.VSub_DollarName '$LANG')}
          spids: [9]
        )
        (assign_pair
          lhs: (sh_lhs_expr.Name name:LANG)
          op: assign_op.Equal
          rhs: {<C>}
          spids: [12]
        )
      ]
    )
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name name:str)
          op: assign_op.Equal
          rhs: {(SQ <'("(\\\\.|[^\\\\"])*")'>)}
          spids: [15]
        )
      ]
    )
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name name:num)
          op: assign_op.Equal
          rhs: 
            {(DQ <'(-?(0|[1-9][0-9]*)('> <Id.Lit_BadBackslash '\\'> <'.[0-9]+)?([eE][+-]?[0-9]+)?)'>)}
          spids: [23]
        )
      ]
    )
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name name:val)
          op: assign_op.Equal
          rhs: {(DQ <'((str|num|obj|arr)[a-j]+|true|false|null)'>)}
          spids: [30]
        )
      ]
    )
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name name:arr)
          op: assign_op.Equal
          rhs: 
            {
              (DQ <Id.Lit_BadBackslash '\\'> <'[('> ($ Id.VSub_DollarName '$val') <'(,'> 
                ($ Id.VSub_DollarName '$val') <')*)?]'>
              )
            }
          spids: [35]
        )
      ]
    )
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name name:obj)
          op: assign_op.Equal
          rhs: 
            {
              (DQ <Id.Lit_BadBackslash '\\'> <'{(str[a-j]+:'> ($ Id.VSub_DollarName '$val') 
                <'(,str[a-j]+:'> ($ Id.VSub_DollarName '$val') <')*)?}'>
              )
            }
          spids: [45]
        )
      ]
    )
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name name:tr)
          op: assign_op.Equal
          rhs: 
            {
              (sh_array_literal
                left: <Id.Op_LParen _>
                words: [
                  (word.BracedTree
                    parts: [
                      (word_part.BracedRange
                        kind: Id.Range_Char
                        start: a
                        end: j
                        step: 1
                      )
                      (word_part.BracedRange
                        kind: Id.Range_Char
                        start: a
                        end: j
                        step: 1
                      )
                      (word_part.BracedRange
                        kind: Id.Range_Char
                        start: a
                        end: j
                        step: 1
                      )
                    ]
                  )
                ]
              )
            }
          spids: [55]
        )
      ]
    )
    (C {<declare>} {<-n>} {<match>})
    (command.ShFunction
      name: push
      body: 
        (BraceGroup
          children: [
            (command.Sentence
              child: (C {<declare>} {<-gn>} {<Id.Lit_VarLike 'list='> (${ Id.VSub_Name type) <_list>})
              terminator: <Id.Op_Semi _>
            )
            (command.Sentence
              child: 
                (command.ShAssignment
                  pairs: [
                    (assign_pair
                      lhs: (sh_lhs_expr.Name name:list)
                      op: assign_op.PlusEqual
                      rhs: 
                        {
                          (sh_array_literal
                            left: <Id.Op_LParen _>
                            words: [
                              {
                                (DQ 
                                  (braced_var_sub
                                    token: <Id.VSub_Name BASH_REMATCH>
                                    bracket_op: (bracket_op.ArrayIndex expr:{<Id.Lit_Digits 1>})
                                  )
                                )
                              }
                            ]
                          )
                        }
                      spids: [96]
                    )
                  ]
                )
              terminator: <Id.Op_Semi _>
            )
          ]
        )
    )
    (command.ShFunction
      name: match
      body: 
        (command.ForEach
          iter_name: match
          iter_words: [{<str>} {<num>} {<obj>} {<arr>}]
          do_arg_iter: F
          body: 
            (command.DoGroup
              children: [
                (command.AndOr
                  ops: [Id.Op_DAmp]
                  children: [
                    (command.DBracket
                      expr: 
                        (bool_expr.LogicalAnd
                          left: 
                            (bool_expr.Binary
                              op_id: Id.BoolBinary_GlobNEqual
                              left: 
                                {(braced_var_sub token:<Id.VSub_Name match> prefix_op:(Id.VSub_Bang))}
                              right: {<str>}
                            )
                          right: 
                            (bool_expr.LogicalNot
                              child: 
                                (bool_expr.Binary
                                  op_id: Id.BoolBinary_ne
                                  left: {<i> <Id.Lit_Other '+'> <Id.Lit_Other '+'>}
                                  right: {<0>}
                                )
                            )
                        )
                    )
                    (command.ShAssignment
                      pairs: [
                        (assign_pair
                          lhs: (sh_lhs_expr.Name name:json)
                          op: assign_op.Equal
                          rhs: 
                            {
                              (braced_var_sub
                                token: <Id.VSub_Name json>
                                suffix_op: 
                                  (suffix_op.PatSub
                                    pat: 
                                      {<'['> 
                                        (single_quoted
                                          left: <Id.Left_DollarSingleQuote '$\''>
                                          tokens: [
                                            <Id.Char_Literals ' '>
                                            <Id.Char_OneChar '\\t'>
                                            <Id.Char_OneChar '\\n'>
                                            <Id.Char_OneChar '\\r'>
                                          ]
                                          multiline: F
                                        ) <']'>
                                      }
                                    replace_mode: Id.Lit_Slash
                                  )
                              )
                            }
                          spids: [165]
                        )
                      ]
                    )
                  ]
                )
                (command.AndOr
                  ops: [Id.Op_DAmp]
                  children: [
                    (command.DBracket
                      expr: 
                        (bool_expr.Binary
                          op_id: Id.BoolBinary_EqualTilde
                          left: {($ Id.VSub_DollarName '$json')}
                          right: 
                            {($ Id.VSub_DollarName '$match') <Id.Lit_Other '('> <Id.Lit_Other .> 
                              <Id.Lit_Other '*'> <Id.Lit_Other ')'>
                            }
                        )
                    )
                    (BraceGroup
                      children: [
                        (command.Sentence
                          child: 
                            (command.ShAssignment
                              pairs: [
                                (assign_pair
                                  lhs: (sh_lhs_expr.Name name:type)
                                  op: assign_op.Equal
                                  rhs: 
                                    {
                                      (braced_var_sub
                                        token: <Id.VSub_Name match>
                                        prefix_op: (Id.VSub_Bang)
                                      )
                                    }
                                  spids: [199]
                                )
                              ]
                            )
                          terminator: <Id.Op_Semi _>
                        )
                        (command.Sentence
                          child: (command.ControlFlow token:<Id.ControlFlow_Return return>)
                          terminator: <Id.Op_Semi _>
                        )
                      ]
                    )
                  ]
                )
              ]
            )
        )
    )
    (command.WhileUntil
      keyword: <Id.KW_While while>
      cond: 
        (condition.Shell
          commands: [(command.Sentence child:(C {<match>}) terminator:<Id.Op_Semi _>)]
        )
      body: 
        (command.DoGroup
          children: [
            (C {<push>})
            (command.ShAssignment
              pairs: [
                (assign_pair
                  lhs: (sh_lhs_expr.Name name:json)
                  op: assign_op.Equal
                  rhs: 
                    {
                      (braced_var_sub
                        token: <Id.VSub_Name json>
                        suffix_op: 
                          (suffix_op.Unary
                            tok: <Id.VOp1_Percent '%'>
                            arg_word: {(DQ ($ Id.VSub_DollarName '$BASH_REMATCH'))}
                          )
                      ) ($ Id.VSub_DollarName '$type') 
                      (braced_var_sub
                        token: <Id.VSub_Name tr>
                        bracket_op: 
                          (bracket_op.ArrayIndex
                            expr: 
                              (arith_expr.Binary
                                op_id: Id.Arith_Minus
                                left: 
                                  {
                                    (braced_var_sub
                                      token: <Id.VSub_Name list>
                                      prefix_op: (Id.VSub_Pound)
                                      bracket_op: (bracket_op.WholeArray op_id:Id.Lit_At)
                                    )
                                  }
                                right: {<Id.Lit_Digits 1>}
                              )
                          )
                      ) 
                      (braced_var_sub
                        token: <Id.VSub_Name BASH_REMATCH>
                        bracket_op: 
                          (bracket_op.ArrayIndex
                            expr: (arith_expr.Unary op_id:Id.Node_UnaryMinus child:{<Id.Lit_Digits 1>})
                          )
                      )
                    }
                  spids: [228]
                )
              ]
            )
          ]
        )
    )
    (command.AndOr
      ops: [Id.Op_DPipe]
      children: [
        (command.DBracket
          expr: 
            (bool_expr.Binary
              op_id: Id.BoolBinary_EqualTilde
              left: {($ Id.VSub_DollarName '$json')}
              right: {<Id.Lit_Other '^'> ($ Id.VSub_DollarName '$val') <Id.Lit_Other '$'>}
            )
        )
        (command.ControlFlow token:<Id.ControlFlow_Exit exit>)
      ]
    )
    (C {<declare>} {<-A>} {<rt>})
    (command.ForEach
      iter_name: i
      iter_words: [
        {
          (DQ 
            (braced_var_sub
              token: <Id.VSub_Name tr>
              bracket_op: (bracket_op.WholeArray op_id:Id.Lit_At)
            )
          )
        }
      ]
      do_arg_iter: F
      body: 
        (command.DoGroup
          children: [
            (command.Sentence
              child: 
                (command.DParen
                  child: 
                    (arith_expr.BinaryAssign
                      op_id: Id.Arith_Equal
                      left: 
                        (arith_expr.Binary
                          op_id: Id.Arith_LBracket
                          left: <Id.Lit_ArithVarLike rt>
                          right: {($ Id.VSub_DollarName '$i')}
                        )
                      right: 
                        (arith_expr.UnaryAssign
                          op_id: Id.Node_PostDPlus
                          child: <Id.Lit_ArithVarLike j>
                        )
                    )
                )
              terminator: <Id.Op_Semi _>
            )
          ]
        )
    )
    (command.CommandList
      children: [
        (command.Sentence child:(C {<set>} {<-f>}) terminator:<Id.Op_Semi _>)
        (command.ShAssignment
          pairs: [
            (assign_pair
              lhs: (sh_lhs_expr.Name name:LANG)
              op: assign_op.Equal
              rhs: {($ Id.VSub_DollarName '$oldlang')}
              spids: [335]
            )
            (assign_pair
              lhs: (sh_lhs_expr.Name name:IFS)
              op: assign_op.Equal
              rhs: {<Id.Lit_Colon ':'> <Id.Lit_Comma ','>}
              spids: [338]
            )
            (assign_pair
              lhs: (sh_lhs_expr.Name name:regex)
              op: assign_op.Equal
              rhs: {(SQ <'(\\\\[nftrb]|\\\\\\\\|\\\\u[a-f0-9]{4})'>)}
              spids: [342]
            )
          ]
        )
      ]
    )
    (C {<shopt>} {<-s>} {<nocasematch>})
    (command.ShFunction
      name: print
      body: 
        (command.Case
          to_match: {($ Id.VSub_Number '$1')}
          arms: [
            (case_arm
              pat_list: [{<null>} {<true>} {<false>}]
              action: [(C {<printf>} {(DQ ($ Id.VSub_Number '$1'))})]
              spids: [366 371 379 -1]
            )
            (case_arm
              pat_list: [{<str> <Id.Lit_Star '*'>}]
              action: [
                (command.ShAssignment
                  pairs: [
                    (assign_pair
                      lhs: (sh_lhs_expr.Name name:tmp)
                      op: assign_op.Equal
                      rhs: 
                        {
                          (braced_var_sub
                            token: <Id.VSub_Name str_list>
                            bracket_op: 
                              (bracket_op.ArrayIndex
                                expr: 
                                  (arith_expr.Binary
                                    op_id: Id.Arith_LBracket
                                    left: <Id.Lit_ArithVarLike rt>
                                    right: 
                                      {
                                        (braced_var_sub
                                          token: <Id.VSub_Number 1>
                                          suffix_op: (suffix_op.Slice begin:{<Id.Lit_Digits 3>})
                                        )
                                      }
                                  )
                              )
                          )
                        }
                      spids: [386]
                    )
                  ]
                )
                (command.WhileUntil
                  keyword: <Id.KW_While while>
                  cond: 
                    (condition.Shell
                      commands: [
                        (command.Sentence
                          child: 
                            (command.DBracket
                              expr: 
                                (bool_expr.Binary
                                  op_id: Id.BoolBinary_EqualTilde
                                  left: {($ Id.VSub_DollarName '$tmp')}
                                  right: 
                                    {($ Id.VSub_DollarName '$regex') <Id.Lit_Other '('> 
                                      <Id.Lit_Other .> <Id.Lit_Other '*'> <Id.Lit_Other ')'>
                                    }
                                )
                            )
                          terminator: <Id.Op_Semi _>
                        )
                      ]
                    )
                  body: 
                    (command.DoGroup
                      children: [
                        (C {<printf>} {<Id.Lit_Other '%'> <s>} 
                          {
                            (DQ 
                              (braced_var_sub
                                token: <Id.VSub_Name tmp>
                                suffix_op: 
                                  (suffix_op.Unary
                                    tok: <Id.VOp1_Percent '%'>
                                    arg_word: {(DQ ($ Id.VSub_DollarName '$BASH_REMATCH'))}
                                  )
                              )
                            )
                          }
                        )
                        (command.Case
                          to_match: 
                            {
                              (braced_var_sub
                                token: <Id.VSub_Name BASH_REMATCH>
                                bracket_op: (bracket_op.ArrayIndex expr:{<Id.Lit_Digits 1>})
                              )
                            }
                          arms: [
                            (case_arm
                              pat_list: [
                                {(word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\\\'>) <u0008>}
                              ]
                              action: [(C {<printf>} {(SQ <'\\\\b'>)})]
                              spids: [450 452 460 -1]
                            )
                            (case_arm
                              pat_list: [
                                {(word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\\\'>) <u0009>}
                              ]
                              action: [(C {<printf>} {(SQ <'\\\\t'>)})]
                              spids: [462 464 472 -1]
                            )
                            (case_arm
                              pat_list: [
                                {(word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\\\'>) <u000a>}
                              ]
                              action: [(C {<printf>} {(SQ <'\\\\n'>)})]
                              spids: [475 477 485 -1]
                            )
                            (case_arm
                              pat_list: [
                                {(word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\\\'>) <u000c>}
                              ]
                              action: [(C {<printf>} {(SQ <'\\\\f'>)})]
                              spids: [487 489 497 -1]
                            )
                            (case_arm
                              pat_list: [
                                {(word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\\\'>) <u000d>}
                              ]
                              action: [(C {<printf>} {(SQ <'\\\\r'>)})]
                              spids: [500 502 510 -1]
                            )
                            (case_arm
                              pat_list: [
                                {(word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\\\'>) <u0022>}
                              ]
                              action: [(C {<printf>} {(SQ <'\\\\"'>)})]
                              spids: [512 514 522 -1]
                            )
                            (case_arm
                              pat_list: [
                                {(word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\\\'>) <u005c>}
                              ]
                              action: [(C {<printf>} {(SQ <'\\\\\\\\'>)})]
                              spids: [525 527 535 -1]
                            )
                            (case_arm
                              pat_list: [
                                {(word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\\\'>) 
                                  (word_part.EscapedLiteral
                                    token: <Id.Lit_EscapedChar '\\\\'>
                                  )
                                }
                                {(word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\\\'>) 
                                  <Id.Lit_LBracket '['> <nftrb> <Id.Lit_RBracket ']'>
                                }
                                {(word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\\\'>) 
                                  <Id.Lit_ArrayLhsOpen 'u00['> <01> <Id.Lit_RBracket ']'> <Id.Lit_QMark '?'>
                                }
                              ]
                              action: [
                                (C {<printf>} {<Id.Lit_Other '%'> <s>} 
                                  {
                                    (DQ 
                                      (braced_var_sub
                                        token: <Id.VSub_Name BASH_REMATCH>
                                        bracket_op: (bracket_op.ArrayIndex expr:{<Id.Lit_Digits 1>})
                                      )
                                    )
                                  }
                                )
                              ]
                              spids: [538 551 567 -1]
                            )
                            (case_arm
                              pat_list: [{<Id.Lit_Star '*'>}]
                              action: [
                                (C {<printf>} {<Id.Lit_Other '%'> <b>} 
                                  {
                                    (DQ 
                                      (braced_var_sub
                                        token: <Id.VSub_Name BASH_REMATCH>
                                        bracket_op: (bracket_op.ArrayIndex expr:{<Id.Lit_Digits 1>})
                                      )
                                    )
                                  }
                                )
                              ]
                              spids: [570 571 -1 588]
                            )
                          ]
                        )
                        (command.ShAssignment
                          pairs: [
                            (assign_pair
                              lhs: (sh_lhs_expr.Name name:tmp)
                              op: assign_op.Equal
                              rhs: 
                                {
                                  (braced_var_sub
                                    token: <Id.VSub_Name BASH_REMATCH>
                                    bracket_op: (bracket_op.ArrayIndex expr:{<Id.Lit_Digits 2>})
                                  )
                                }
                              spids: [591]
                            )
                          ]
                        )
                      ]
                    )
                )
                (C {<printf>} {<Id.Lit_Other '%'> <s>} {(DQ ($ Id.VSub_DollarName '$tmp'))})
              ]
              spids: [382 384 612 -1]
            )
            (case_arm
              pat_list: [{<num> <Id.Lit_Star '*'>}]
              action: [
                (C {<printf>} {<Id.Lit_Other '%'> <s>} 
                  {
                    (DQ 
                      (braced_var_sub
                        token: <Id.VSub_Name num_list>
                        bracket_op: 
                          (bracket_op.ArrayIndex
                            expr: 
                              (arith_expr.Binary
                                op_id: Id.Arith_LBracket
                                left: <Id.Lit_ArithVarLike rt>
                                right: 
                                  {
                                    (braced_var_sub
                                      token: <Id.VSub_Number 1>
                                      suffix_op: (suffix_op.Slice begin:{<Id.Lit_Digits 3>})
                                    )
                                  }
                              )
                          )
                      )
                    )
                  }
                )
              ]
              spids: [618 620 643 -1]
            )
            (case_arm
              pat_list: [{<arr> <Id.Lit_Star '*'>}]
              action: [
                (C {<local>} 
                  {<Id.Lit_VarLike 'array='> 
                    (sh_array_literal
                      left: <Id.Op_LParen _>
                      words: [
                        {
                          (braced_var_sub
                            token: <Id.VSub_Name arr_list>
                            bracket_op: 
                              (bracket_op.ArrayIndex
                                expr: 
                                  (arith_expr.Binary
                                    op_id: Id.Arith_LBracket
                                    left: <Id.Lit_ArithVarLike rt>
                                    right: 
                                      {
                                        (braced_var_sub
                                          token: <Id.VSub_Number 1>
                                          suffix_op: (suffix_op.Slice begin:{<Id.Lit_Digits 3>})
                                        )
                                      }
                                  )
                              )
                          )
                        }
                      ]
                    )
                  }
                )
                (command.If
                  arms: [
                    (if_arm
                      cond: 
                        (condition.Shell
                          commands: [
                            (command.Sentence
                              child: 
                                (command.DParen
                                  child: 
                                    (arith_expr.Unary
                                      op_id: Id.Arith_Bang
                                      child: 
                                        {
                                          (braced_var_sub
                                            token: <Id.VSub_Name array>
                                            prefix_op: (Id.VSub_Pound)
                                            bracket_op: (bracket_op.WholeArray op_id:Id.Lit_At)
                                          )
                                        }
                                    )
                                )
                              terminator: <Id.Op_Semi _>
                            )
                          ]
                        )
                      action: [(C {<printf>} {(DQ <'[]'>)})]
                      spids: [670 685]
                    )
                  ]
                  else_action: [
                    (command.Sentence
                      child: 
                        (command.DParen
                          child: 
                            (arith_expr.BinaryAssign
                              op_id: Id.Arith_PlusEqual
                              left: <Id.Lit_ArithVarLike indent>
                              right: {<Id.Lit_Digits 2>}
                            )
                        )
                      terminator: <Id.Op_Semi _>
                    )
                    (C {<printf>} {(DQ <'['> <Id.Lit_BadBackslash '\\'> <n>)})
                    (command.WhileUntil
                      keyword: <Id.KW_While while>
                      cond: 
                        (condition.Shell
                          commands: [
                            (command.Sentence
                              child: 
                                (command.DParen
                                  child: 
                                    (arith_expr.Binary
                                      op_id: Id.Arith_Great
                                      left: 
                                        {
                                          (braced_var_sub
                                            token: <Id.VSub_Name array>
                                            prefix_op: (Id.VSub_Pound)
                                            bracket_op: (bracket_op.WholeArray op_id:Id.Lit_At)
                                          )
                                        }
                                      right: {<Id.Lit_Digits 1>}
                                    )
                                )
                              terminator: <Id.Op_Semi _>
                            )
                          ]
                        )
                      body: 
                        (command.DoGroup
                          children: [
                            (command.Sentence
                              child: 
                                (C {<printf>} {(DQ <'%*s'>)} {(DQ ($ Id.VSub_DollarName '$indent'))})
                              terminator: <Id.Op_Semi _>
                            )
                            (command.Sentence
                              child: (C {<print>} {(DQ ($ Id.VSub_DollarName '$array'))})
                              terminator: <Id.Op_Semi _>
                            )
                            (C {<printf>} {(DQ <','> <Id.Lit_BadBackslash '\\'> <n>)})
                            (command.ShAssignment
                              pairs: [
                                (assign_pair
                                  lhs: (sh_lhs_expr.Name name:array)
                                  op: assign_op.Equal
                                  rhs: 
                                    {
                                      (sh_array_literal
                                        left: <Id.Op_LParen _>
                                        words: [
                                          {
                                            (DQ 
                                              (braced_var_sub
                                                token: <Id.VSub_Name array>
                                                bracket_op: (bracket_op.WholeArray op_id:Id.Lit_At)
                                                suffix_op: (suffix_op.Slice begin:{<Id.Lit_Digits 1>})
                                              )
                                            )
                                          }
                                        ]
                                      )
                                    }
                                  spids: [760]
                                )
                              ]
                            )
                          ]
                        )
                    )
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