(command.CommandList
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    (command.Simple
      blame_tok: <typeset>
      more_env: []
      words: [{<typeset>} {<_Dbg_last_search_pat>}]
      redirects: []
      do_fork: T
    )
    (command.Simple
      blame_tok: <typeset>
      more_env: []
      words: [{<typeset>} {<-i>} {<Id.Lit_VarLike '_Dbg_listline='> <0>}]
      redirects: []
      do_fork: T
    )
    (command.Simple
      blame_tok: <typeset>
      more_env: []
      words: [{<typeset>} {<_Dbg_source_line>}]
      redirects: []
      do_fork: T
    )
    (command.ShFunction
      keyword: <Id.KW_Function function>
      name_tok: <_Dbg_print_location_and_command>
      name: _Dbg_print_location_and_command
      body: 
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          left: <Id.Lit_LBrace '{'>
          children: [
            (command.Simple
              blame_tok: <typeset>
              more_env: []
              words: [
                {<typeset>}
                {<Id.Lit_VarLike 'line_number='> 
                  (BracedVarSub
                    left: <Id.Left_DollarBrace '${'>
                    token: <Id.VSub_Number 1>
                    var_name: 1
                    suffix_op: 
                      (suffix_op.Unary
                        op: <Id.VTest_ColonHyphen _>
                        arg_word: {($ Id.VSub_DollarName _Dbg_frame_last_lineno)}
                      )
                    right: <Id.Right_DollarBrace '}'>
                  )
                }
              ]
              redirects: []
              do_fork: T
            )
            (command.Simple
              blame_tok: <typeset>
              more_env: []
              words: [
                {<typeset>}
                {<Id.Lit_VarLike 'filename='> 
                  (BracedVarSub
                    left: <Id.Left_DollarBrace '${'>
                    token: <Id.VSub_Number 2>
                    var_name: 2
                    suffix_op: 
                      (suffix_op.Unary
                        op: <Id.VTest_ColonHyphen _>
                        arg_word: {($ Id.VSub_DollarName _Dbg_frame_last_filename)}
                      )
                    right: <Id.Right_DollarBrace '}'>
                  )
                }
              ]
              redirects: []
              do_fork: T
            )
            (command.Simple
              blame_tok: <_Dbg_get_source_line>
              more_env: []
              words: [
                {<_Dbg_get_source_line>}
                {($ Id.VSub_DollarName line_number)}
                {(DQ ($ Id.VSub_DollarName filename))}
              ]
              redirects: []
              do_fork: T
            )
            (command.ShAssignment
              left: <Id.Lit_VarLike 'filename='>
              pairs: [
                (AssignPair
                  left: <Id.Lit_VarLike 'filename='>
                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'filename='> name:filename)
                  op: assign_op.Equal
                  rhs: 
                    {
                      (CommandSub
                        left_token: <Id.Left_DollarParen '$('>
                        child: 
                          (command.Simple
                            blame_tok: <_Dbg_adjust_filename>
                            more_env: []
                            words: [{<_Dbg_adjust_filename>} {(DQ ($ Id.VSub_DollarName filename))}]
                            redirects: []
                            do_fork: T
                          )
                        right: <Id.Eof_RParen _>
                      )
                    }
                )
              ]
              redirects: []
            )
            (command.Simple
              blame_tok: <_Dbg_msg>
              more_env: []
              words: [
                {<_Dbg_msg>}
                {
                  (DQ <'('> (${ Id.VSub_Name filename) <':'> (${ Id.VSub_Name line_number) <'):\n'> 
                    (${ Id.VSub_Name line_number) <':'> <Id.Lit_BadBackslash '\\'> <t> (${ Id.VSub_Name _Dbg_source_line)
                  )
                }
              ]
              redirects: []
              do_fork: T
            )
            (command.If
              if_kw: <Id.KW_If if>
              arms: [
                (IfArm
                  keyword: <Id.KW_If if>
                  cond: 
                    (condition.Shell
                      commands: [
                        (command.Sentence
                          child: 
                            (command.DBracket
                              left: <Id.KW_DLeftBracket '[['>
                              expr: 
                                (bool_expr.Binary
                                  op_id: Id.BoolBinary_GlobDEqual
                                  left: {($ Id.VSub_DollarName _Dbg_set_show_command)}
                                  right: {(DQ <on>)}
                                )
                              right: <Id.Lit_DRightBracket ']]'>
                              redirects: []
                            )
                          terminator: <Id.Op_Semi _>
                        )
                      ]
                    )
                  then_kw: <Id.KW_Then then>
                  action: [
                    (command.Simple
                      blame_tok: <_Dbg_msg>
                      more_env: []
                      words: [{<_Dbg_msg>} {(DQ ($ Id.VSub_DollarName _Dbg_bash_command))}]
                      redirects: []
                      do_fork: T
                    )
                  ]
                  spids: [184 200]
                )
                (IfArm
                  keyword: <Id.KW_Elif elif>
                  cond: 
                    (condition.Shell
                      commands: [
                        (command.Sentence
                          child: 
                            (command.AndOr
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                                  left: <Id.KW_DLeftBracket '[['>
                                  expr: 
                                    (bool_expr.Binary
                                      op_id: Id.BoolBinary_GlobDEqual
                                      left: {($ Id.VSub_DollarName _Dbg_last_lineno)}
                                      right: {($ Id.VSub_DollarName _Dbg_frame_last_lineno)}
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                                  right: <Id.Lit_DRightBracket ']]'>
                                  redirects: []
                                )
                                (command.DBracket
                                  left: <Id.KW_DLeftBracket '[['>
                                  expr: 
                                    (bool_expr.Binary
                                      op_id: Id.BoolBinary_GlobDEqual
                                      left: {($ Id.VSub_DollarName _Dbg_last_source_file)}
                                      right: {($ Id.VSub_DollarName _Dbg_frame_last_filename)}
                                    )
                                  right: <Id.Lit_DRightBracket ']]'>
                                  redirects: []
                                )
                                (command.DBracket
                                  left: <Id.KW_DLeftBracket '[['>
                                  expr: 
                                    (bool_expr.LogicalAnd
                                      left: 
                                        (bool_expr.Binary
                                          op_id: Id.BoolBinary_GlobNEqual
                                          left: {($ Id.VSub_DollarName _Dbg_last_bash_command)}
                                          right: {($ Id.VSub_DollarName _Dbg_bash_command)}
                                        )
                                      right: 
                                        (bool_expr.Binary
                                          op_id: Id.BoolBinary_GlobDEqual
                                          left: {($ Id.VSub_DollarName _Dbg_set_show_command)}
                                          right: {(DQ <auto>)}
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                                    )
                                  right: <Id.Lit_DRightBracket ']]'>
                                  redirects: []
                                )
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                              ops: [<Id.Op_DAmp _> <Id.Op_DAmp _>]
                            )
                          terminator: <Id.Op_Semi _>
                        )
                      ]
                    )
                  then_kw: <Id.KW_Then then>
                  action: [
                    (command.Simple
                      blame_tok: <_Dbg_msg>
                      more_env: []
                      words: [{<_Dbg_msg>} {(DQ ($ Id.VSub_DollarName _Dbg_bash_command))}]
                      redirects: []
                      do_fork: T
                    )
                  ]
                  spids: [210 264]
                )
              ]
              else_action: []
              fi_kw: <Id.KW_Fi fi>
              redirects: []
            )
          ]
          redirects: []
          right: <Id.Lit_RBrace '}'>
        )
    )
    (command.ShFunction
      name_tok: <_Dbg_print_linetrace>
      name: _Dbg_print_linetrace
      body: 
        (BraceGroup
          left: <Id.Lit_LBrace '{'>
          children: [
            (command.Simple
              blame_tok: <typeset>
              more_env: []
              words: [
                {<typeset>}
                {<Id.Lit_VarLike 'line_number='> 
                  (BracedVarSub
                    left: <Id.Left_DollarBrace '${'>
                    token: <Id.VSub_Number 1>
                    var_name: 1
                    suffix_op: 
                      (suffix_op.Unary
                        op: <Id.VTest_ColonHyphen _>
                        arg_word: {($ Id.VSub_DollarName _Dbg_frame_last_lineno)}
                      )
                    right: <Id.Right_DollarBrace '}'>
                  )
                }
              ]
              redirects: []
              do_fork: T
            )
            (command.Simple
              blame_tok: <typeset>
              more_env: []
              words: [
                {<typeset>}
                {<Id.Lit_VarLike 'filename='> 
                  (BracedVarSub
                    left: <Id.Left_DollarBrace '${'>
                    token: <Id.VSub_Number 2>
                    var_name: 2
                    suffix_op: 
                      (suffix_op.Unary
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                        arg_word: {(DQ ($ Id.VSub_DollarName _Dbg_frame_last_filename))}
                      )
                    right: <Id.Right_DollarBrace '}'>
                  )
                }
              ]
              redirects: []
              do_fork: T
            )
            (command.Simple
              blame_tok: <typeset>
              more_env: []
              words: [
                {<typeset>}
                {<-i>}
                {<Id.Lit_VarLike 'depth='> 
                  (BracedVarSub
                    left: <Id.Left_DollarBrace '${'>
                    token: <Id.VSub_Name FUNCNAME>
                    var_name: FUNCNAME
                    prefix_op: <Id.VSub_Pound '#'>
                    bracket_op: (bracket_op.WholeArray op_id:Id.Lit_At)
                    right: <Id.Right_DollarBrace '}'>
                  ) <-3>
                }
              ]
              redirects: []
              do_fork: T
            )
            (command.If
              if_kw: <Id.KW_If if>
              arms: [
                (IfArm
                  keyword: <Id.KW_If if>
                  cond: 
                    (condition.Shell
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                          child: 
                            (command.DBracket
                              left: <Id.KW_DLeftBracket '[['>
                              expr: 
                                (bool_expr.Unary
                                  op_id: Id.BoolUnary_n
                                  child: {($ Id.VSub_DollarName _Dbg_script)}
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                              right: <Id.Lit_DRightBracket ']]'>
                              redirects: []
                            )
                          terminator: <Id.Op_Semi _>
                        )
                      ]
                    )
                  then_kw: <Id.KW_Then then>
                  action: [
                    (command.DParen
                      left: <Id.Op_DLeftParen _>
                      child: 
                        (arith_expr.UnaryAssign
                          op_id: Id.Node_PostDMinus
                          child: ($ Id.Lit_ArithVarLike depth)
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                      right: <Id.Op_DRightParen _>
                      redirects: []
                    )
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                  spids: [343 355]
                )
              ]
              else_action: []
              fi_kw: <Id.KW_Fi fi>
              redirects: []
            )
            (command.AndOr
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                (command.DParen
                  left: <Id.Op_DLeftParen _>
                  child: 
                    (arith_expr.Binary
                      op_id: Id.Arith_Less
                      left: ($ Id.Lit_ArithVarLike depth)
                      right: {<Id.Lit_Digits 0>}
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                  right: <Id.Op_DRightParen _>
                  redirects: []
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                (command.ControlFlow keyword:<Id.ControlFlow_Return return>)
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              ops: [<Id.Op_DAmp _>]
            )
            (command.Simple
              blame_tok: <_Dbg_get_source_line>
              more_env: []
              words: [
                {<_Dbg_get_source_line>}
                {($ Id.VSub_DollarName line_number)}
                {(DQ ($ Id.VSub_DollarName filename))}
              ]
              redirects: []
              do_fork: T
            )
            (command.ShAssignment
              left: <Id.Lit_VarLike 'filename='>
              pairs: [
                (AssignPair
                  left: <Id.Lit_VarLike 'filename='>
                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'filename='> name:filename)
                  op: assign_op.Equal
                  rhs: 
                    {
                      (CommandSub
                        left_token: <Id.Left_DollarParen '$('>
                        child: 
                          (command.Simple
                            blame_tok: <_Dbg_adjust_filename>
                            more_env: []
                            words: [{<_Dbg_adjust_filename>} {(DQ ($ Id.VSub_DollarName filename))}]
                            redirects: []
                            do_fork: T
                          )
                        right: <Id.Eof_RParen _>
                      )
                    }
                )
              ]
              redirects: []
            )
            (command.Simple
              blame_tok: <_Dbg_msg>
              more_env: []
              words: [
                {<_Dbg_msg>}
                {
                  (DQ <'('> (${ Id.VSub_Name filename) <':'> (${ Id.VSub_Name line_number) <'):\n'> 
                    <'level '> ($ Id.VSub_DollarName _Dbg_DEBUGGER_LEVEL) <', subshell '> ($ Id.VSub_DollarName BASH_SUBSHELL) 
                    <', depth '> ($ Id.VSub_DollarName depth) <':'> <Id.Lit_BadBackslash '\\'> <t> (${ Id.VSub_Name _Dbg_source_line)
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                }
              ]
              redirects: []
              do_fork: T
            )
            (command.If
              if_kw: <Id.KW_If if>
              arms: [
                (IfArm
                  keyword: <Id.KW_If if>
                  cond: 
                    (condition.Shell
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                            (command.DBracket
                              left: <Id.KW_DLeftBracket '[['>
                              expr: 
                                (bool_expr.Binary
                                  op_id: Id.BoolBinary_GlobDEqual
                                  left: {($ Id.VSub_DollarName _Dbg_set_show_command)}
                                  right: {(DQ <on>)}
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                              right: <Id.Lit_DRightBracket ']]'>
                              redirects: []
                            )
                          terminator: <Id.Op_Semi _>
                        )
                      ]
                    )
                  then_kw: <Id.KW_Then then>
                  action: [
                    (command.Simple
                      blame_tok: <_Dbg_msg>
                      more_env: []
                      words: [{<_Dbg_msg>} {(DQ ($ Id.VSub_DollarName _Dbg_bash_command))}]
                      redirects: []
                      do_fork: T
                    )
                  ]
                  spids: [469 485]
                )
                (IfArm
                  keyword: <Id.KW_Elif elif>
                  cond: 
                    (condition.Shell
                      commands: [
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                            (command.AndOr
                              children: [
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                                  left: <Id.Op_DLeftParen _>
                                  child: 
                                    (arith_expr.Binary
                                      op_id: Id.Arith_DEqual
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                                      right: ($ Id.Lit_ArithVarLike _Dbg_frame_last_lineno)
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                                  right: <Id.Op_DRightParen _>
                                  redirects: []
                                )
                                (command.DBracket
                                  left: <Id.KW_DLeftBracket '[['>
                                  expr: 
                                    (bool_expr.Binary
                                      op_id: Id.BoolBinary_GlobDEqual
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                                      right: {($ Id.VSub_DollarName _Dbg_frame_last_filename)}
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                                  right: <Id.Lit_DRightBracket ']]'>
                                  redirects: []
                                )
                                (command.DBracket
                                  left: <Id.KW_DLeftBracket '[['>
                                  expr: 
                                    (bool_expr.LogicalAnd
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                                        (bool_expr.Binary
                                          op_id: Id.BoolBinary_GlobNEqual
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                                          right: {($ Id.VSub_DollarName _Dbg_bash_command)}
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                                      right: 
                                        (bool_expr.Binary
                                          op_id: Id.BoolBinary_GlobDEqual
                                          left: {($ Id.VSub_DollarName _Dbg_set_show_command)}
                                          right: {(DQ <auto>)}
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                                    )
                                  right: <Id.Lit_DRightBracket ']]'>
                                  redirects: []
                                )
                              ]
                              ops: [<Id.Op_DAmp _> <Id.Op_DAmp _>]
                            )
                          terminator: <Id.Op_Semi _>
                        )
                      ]
                    )
                  then_kw: <Id.KW_Then then>
                  action: [
                    (command.Simple
                      blame_tok: <_Dbg_msg>
                      more_env: []
                      words: [{<_Dbg_msg>} {(DQ ($ Id.VSub_DollarName _Dbg_bash_command))}]
                      redirects: []
                      do_fork: T
                    )
                  ]
                  spids: [495 550]
                )
              ]
              else_action: []
              fi_kw: <Id.KW_Fi fi>
              redirects: []
            )
          ]
          redirects: []
          right: <Id.Lit_RBrace '}'>
        )
    )
    (command.ShFunction
      name_tok: <_Dbg_parse_list_args>
      name: _Dbg_parse_list_args
      body: 
        (BraceGroup
          left: <Id.Lit_LBrace '{'>
          children: [
            (command.Simple
              blame_tok: <typeset>
              more_env: []
              words: [{<typeset>} {<-i>} {<max_line>}]
              redirects: []
              do_fork: T
            )
            (command.AndOr
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                (command.DParen
                  left: <Id.Op_DLeftParen _>
                  child: 
                    (arith_expr.Binary
                      op_id: Id.Arith_DPipe
                      left: 
                        (arith_expr.Binary
                          op_id: Id.Arith_Less
                          left: {($ Id.VSub_Pound '#')}
                          right: {<Id.Lit_Digits 3>}
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                      right: 
                        (arith_expr.Binary
                          op_id: Id.Arith_Great
                          left: {($ Id.VSub_Pound '#')}
                          right: {<Id.Lit_Digits 5>}
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                  right: <Id.Op_DRightParen _>
                  redirects: []
                )
                (command.ControlFlow
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                  arg_word: {<1>}
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              ops: [<Id.Op_DAmp _>]
            )
            (command.Simple
              blame_tok: <typeset>
              more_env: []
              words: [{<typeset>} {<-i>} {<center_line>}]
              redirects: []
              do_fork: T
            )
            (command.ShAssignment
              left: <Id.Lit_VarLike 'center_line='>
              pairs: [
                (AssignPair
                  left: <Id.Lit_VarLike 'center_line='>
                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'center_line='> name:center_line)
                  op: assign_op.Equal
                  rhs: {($ Id.VSub_Number 2)}
                )
              ]
              redirects: []
            )
            (command.ShAssignment
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              pairs: [
                (AssignPair
                  left: <Id.Lit_VarLike 'max_line='>
                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'max_line='> name:max_line)
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                  rhs: {($ Id.VSub_Number 2)}
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              ]
              redirects: []
            )
            (command.ShAssignment
              left: <Id.Lit_VarLike 'filename='>
              pairs: [
                (AssignPair
                  left: <Id.Lit_VarLike 'filename='>
                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'filename='> name:filename)
                  op: assign_op.Equal
                  rhs: {(DQ ($ Id.VSub_Number 3))}
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              ]
              redirects: []
            )
            (command.If
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              arms: [
                (IfArm
                  keyword: <Id.KW_If if>
                  cond: 
                    (condition.Shell
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                          child: 
                            (command.DBracket
                              left: <Id.KW_DLeftBracket '[['>
                              expr: 
                                (bool_expr.Binary
                                  op_id: Id.BoolBinary_GlobDEqual
                                  left: {($ Id.VSub_Number 4)}
                                  right: {(SQ <.>)}
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                              right: <Id.Lit_DRightBracket ']]'>
                              redirects: []
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                          terminator: <Id.Op_Semi _>
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                  then_kw: <Id.KW_Then then>
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                      child: 
                        (arith_expr.BinaryAssign
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                          right: ($ Id.Lit_ArithVarLike _Dbg_frame_last_lineno)
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                      right: <Id.Op_DRightParen _>
                      redirects: []
                    )
                  ]
                  spids: [655 670]
                )
                (IfArm
                  keyword: <Id.KW_Elif elif>
                  cond: 
                    (condition.Shell
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                          child: 
                            (command.DBracket
                              left: <Id.KW_DLeftBracket '[['>
                              expr: 
                                (bool_expr.Binary
                                  op_id: Id.BoolBinary_GlobDEqual
                                  left: {($ Id.VSub_Number 4)}
                                  right: {(SQ <->)}
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                              right: <Id.Lit_DRightBracket ']]'>
                              redirects: []
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                          terminator: <Id.Op_Semi _>
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                  then_kw: <Id.KW_Then then>
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                      child: 
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                                (arith_expr.Binary
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                      right: <Id.Op_DRightParen _>
                      redirects: []
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                  spids: [681 696]
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                (IfArm
                  keyword: <Id.KW_Elif elif>
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                    (condition.Shell
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                          keyword: <Id.KW_If if>
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                                      right: <Id.Op_DRightParen _>
                                      redirects: []
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                                  terminator: <Id.Op_Semi _>
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                          then_kw: <Id.KW_Then then>
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                              child: 
                                (arith_expr.BinaryAssign
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                                    (arith_expr.Binary
                                      op_id: Id.Arith_Plus
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                                        (arith_expr.Binary
                                          op_id: Id.Arith_Plus
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                                          right: {($ Id.VSub_Number 4)}
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                                      right: {<Id.Lit_Digits 1>}
                                    )
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                    )
                  ]
                  spids: [1309 1323]
                )
              ]
              else_kw: <Id.KW_Else else>
              else_action: [
                (command.DParen
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                  child: 
                    (arith_expr.BinaryAssign
                      op_id: Id.Arith_Equal
                      left: ($ Id.Lit_ArithVarLike linewidth)
                      right: 
                        (arith_expr.Binary
                          op_id: Id.Arith_Minus
                          left: ($ Id.Lit_ArithVarLike _Dbg_set_linewidth)
                          right: {<Id.Lit_Digits 2>}
                        )
                    )
                  right: <Id.Op_DRightParen _>
                  redirects: []
                )
              ]
              fi_kw: <Id.KW_Fi fi>
              redirects: []
            )
            (command.AndOr
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                (command.DParen
                  left: <Id.Op_DLeftParen _>
                  child: 
                    (arith_expr.Binary
                      op_id: Id.Arith_NEqual
                      left: {($ Id.VSub_Pound '#')}
                      right: {<Id.Lit_Digits 0>}
                    )
                  right: <Id.Op_DRightParen _>
                  redirects: []
                )
                (command.ControlFlow
                  keyword: <Id.ControlFlow_Return return>
                  arg_word: {<1>}
                )
              ]
              ops: [<Id.Op_DAmp _>]
            )
            (command.Sentence
              child: 
                (command.Simple
                  blame_tok: <typeset>
                  more_env: []
                  words: [{<typeset>} {<-a>} {<columnized>}]
                  redirects: []
                  do_fork: T
                )
              terminator: <Id.Op_Semi _>
            )
            (command.Simple
              blame_tok: <columnize>
              more_env: []
              words: [
                {<columnize>}
                {($ Id.VSub_DollarName linewidth)}
                {(DQ ($ Id.VSub_DollarName colsep))}
              ]
              redirects: []
              do_fork: T
            )
            (command.Simple
              blame_tok: <typeset>
              more_env: []
              words: [{<typeset>} {<-i>} {<i>}]
              redirects: []
              do_fork: T
            )
            (command.ForExpr
              keyword: <Id.KW_For for>
              init: 
                (arith_expr.BinaryAssign
                  op_id: Id.Arith_Equal
                  left: ($ Id.Lit_ArithVarLike i)
                  right: {<Id.Lit_Digits 0>}
                )
              cond: 
                (arith_expr.Binary
                  op_id: Id.Arith_Less
                  left: ($ Id.Lit_ArithVarLike i)
                  right: 
                    {
                      (BracedVarSub
                        left: <Id.Left_DollarBrace '${'>
                        token: <Id.VSub_Name columnized>
                        var_name: columnized
                        prefix_op: <Id.VSub_Pound '#'>
                        bracket_op: (bracket_op.WholeArray op_id:Id.Lit_At)
                        right: <Id.Right_DollarBrace '}'>
                      )
                    }
                )
              update: (arith_expr.UnaryAssign op_id:Id.Node_PostDPlus child:($ Id.Lit_ArithVarLike i))
              body: 
                (command.DoGroup
                  left: <Id.KW_Do do>
                  children: [
                    (command.Simple
                      blame_tok: <_Dbg_msg>
                      more_env: []
                      words: [
                        {<_Dbg_msg>}
                        {
                          (DQ <'  '> 
                            (BracedVarSub
                              left: <Id.Left_DollarBrace '${'>
                              token: <Id.VSub_Name columnized>
                              var_name: columnized
                              bracket_op: (bracket_op.ArrayIndex expr:($ Id.Lit_ArithVarLike i))
                              right: <Id.Right_DollarBrace '}'>
                            )
                          )
                        }
                      ]
                      redirects: []
                      do_fork: T
                    )
                  ]
                  right: <Id.KW_Done done>
                )
              redirects: []
            )
          ]
          redirects: []
          right: <Id.Lit_RBrace '}'>
        )
    )
  ]
)