(command.CommandList
  children: [
    (C {<typeset>} {<-i>} {<Id.Lit_VarLike '_Dbg_logging='> <0>})
    (C {<typeset>} {<Id.Lit_VarLike '_Dbg_logging_file='> (DQ <bashdb.txt>)})
    (C {<typeset>} {<Id.Lit_VarLike '_Dbg_logging_overwrite='> <0>})
    (C {<typeset>} {<Id.Lit_VarLike '_Dbg_logging_redirect='> <0>})
    (command.ShFunction
      name: _Dbg_do_set_logging
      body: 
        (BraceGroup
          children: [
            (C {<typeset>} {<-a>} 
              {<Id.Lit_VarLike 'args='> 
                (sh_array_literal
                  left: <Id.Op_LParen _>
                  words: [{($ Id.VSub_At '$@')}]
                )
              }
            )
            (command.If
              arms: [
                (if_arm
                  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 args>
                                        prefix_op: (Id.VSub_Pound)
                                        bracket_op: (bracket_op.WholeArray op_id:Id.Lit_At)
                                      )
                                    }
                                  right: {<Id.Lit_Digits 0>}
                                )
                            )
                          terminator: <Id.Op_Semi _>
                        )
                      ]
                    )
                  action: [
                    (command.Case
                      to_match: 
                        {
                          (braced_var_sub
                            token: <Id.VSub_Name args>
                            bracket_op: (bracket_op.ArrayIndex expr:{<Id.Lit_Digits 0>})
                          )
                        }
                      arms: [
                        (case_arm
                          pat_list: [{<off>}]
                          action: [
                            (command.If
                              arms: [
                                (if_arm
                                  cond: 
                                    (condition.Shell
                                      commands: [
                                        (command.Sentence
                                          child: 
                                            (command.DParen
                                              child: 
                                                (arith_expr.Binary
                                                  op_id: Id.Arith_NEqual
                                                  left: <Id.Lit_ArithVarLike _Dbg_logging>
                                                  right: {<Id.Lit_Digits 0>}
                                                )
                                            )
                                          terminator: <Id.Op_Semi _>
                                        )
                                      ]
                                    )
                                  action: [
                                    (command.ShAssignment
                                      pairs: [
                                        (assign_pair
                                          lhs: (sh_lhs_expr.Name name:_Dbg_logging)
                                          op: assign_op.Equal
                                          rhs: {<0>}
                                          spids: [189]
                                        )
                                      ]
                                    )
                                  ]
                                  spids: [167 182]
                                )
                              ]
                            )
                          ]
                          spids: [162 164 196 -1]
                        )
                        (case_arm
                          pat_list: [{<on>}]
                          action: [
                            (command.If
                              arms: [
                                (if_arm
                                  cond: 
                                    (condition.Shell
                                      commands: [
                                        (command.Sentence
                                          child: 
                                            (command.DParen
                                              child: 
                                                (arith_expr.Binary
                                                  op_id: Id.Arith_DEqual
                                                  left: <Id.Lit_ArithVarLike _Dbg_logging>
                                                  right: {<Id.Lit_Digits 0>}
                                                )
                                            )
                                          terminator: <Id.Op_Semi _>
                                        )
                                      ]
                                    )
                                  action: [
                                    (command.ShAssignment
                                      pairs: [
                                        (assign_pair
                                          lhs: (sh_lhs_expr.Name name:_Dbg_logging)
                                          op: assign_op.Equal
                                          rhs: {<1>}
                                          spids: [222]
                                        )
                                      ]
                                    )
                                    (command.If
                                      arms: [
                                        (if_arm
                                          cond: 
                                            (condition.Shell
                                              commands: [
                                                (command.Sentence
                                                  child: 
                                                    (command.DParen
                                                      child: 
                                                        <Id.Lit_ArithVarLike _Dbg_logging_overwrite>
                                                    )
                                                  terminator: <Id.Op_Semi _>
                                                )
                                              ]
                                            )
                                          action: [
                                            (command.Simple
                                              words: [{<cat>} {<'/dev/null'>}]
                                              redirects: [
                                                (redir
                                                  op: <Id.Redir_Great '>'>
                                                  loc: (redir_loc.Fd fd:1)
                                                  arg: {($ Id.VSub_DollarName '$_Dbg_logging_file')}
                                                )
                                              ]
                                              do_fork: T
                                            )
                                          ]
                                          spids: [226 237]
                                        )
                                      ]
                                    )
                                  ]
                                  spids: [204 219]
                                )
                              ]
                            )
                          ]
                          spids: [199 201 254 -1]
                        )
                        (case_arm
                          pat_list: [{<overwrite>}]
                          action: [
                            (C {<local>} 
                              {<Id.Lit_VarLike 'onoff='> 
                                (braced_var_sub
                                  token: <Id.VSub_Number 2>
                                  suffix_op: 
                                    (suffix_op.Unary
                                      tok: <Id.VTest_ColonHyphen ':-'>
                                      arg_word: {(SQ <on>)}
                                    )
                                )
                              }
                            )
                            (command.Case
                              to_match: {($ Id.VSub_DollarName '$onoff')}
                              arms: [
                                (case_arm
                                  pat_list: [{<on>} {<1>}]
                                  action: [
                                    (C {<_Dbg_write_journal_eval>} {(DQ <'_Dbg_logging_overwrite=1'>)})
                                  ]
                                  spids: [282 288 299 -1]
                                )
                                (case_arm
                                  pat_list: [{<off>} {<0>}]
                                  action: [
                                    (C {<_Dbg_write_journal_eval>} {(DQ <'_Dbg_logging_overwrite=0'>)})
                                  ]
                                  spids: [302 308 318 -1]
                                )
                                (case_arm
                                  pat_list: [{<Id.Lit_Star '*'>}]
                                  action: [
                                    (C {<_Dbg_msg>} 
                                      {
                                        (DQ 
                                          (word_part.EscapedLiteral
                                            token: <Id.Lit_EscapedChar '\\"'>
                                          ) <on> (word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\"'>) <' or '> 
                                          (word_part.EscapedLiteral
                                            token: <Id.Lit_EscapedChar '\\"'>
                                          ) <off> (word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\"'>) <' expected.'>
                                        )
                                      }
                                    )
                                  ]
                                  spids: [321 323 -1 340]
                                )
                              ]
                            )
                          ]
                          spids: [257 259 343 -1]
                        )
                        (case_arm
                          pat_list: [{<redirect>}]
                          action: [
                            (C {<local>} 
                              {<Id.Lit_VarLike 'onoff='> 
                                (braced_var_sub
                                  token: <Id.VSub_Number 2>
                                  suffix_op: 
                                    (suffix_op.Unary
                                      tok: <Id.VTest_ColonHyphen ':-'>
                                      arg_word: {(SQ <on>)}
                                    )
                                )
                              }
                            )
                            (command.Case
                              to_match: {($ Id.VSub_DollarName '$onoff')}
                              arms: [
                                (case_arm
                                  pat_list: [{<on>} {<1>}]
                                  action: [
                                    (C {<_Dbg_write_journal_eval>} {(DQ <'_Dbg_logging_redirect=1'>)})
                                  ]
                                  spids: [371 377 388 -1]
                                )
                                (case_arm
                                  pat_list: [{<off>} {<0>}]
                                  action: [
                                    (C {<_Dbg_write_journal_eval>} {(DQ <'_Dbg_logging_redirect=0'>)})
                                  ]
                                  spids: [391 397 407 -1]
                                )
                                (case_arm
                                  pat_list: [{<Id.Lit_Star '*'>}]
                                  action: [
                                    (C {<_Dbg_msg>} 
                                      {
                                        (DQ 
                                          (word_part.EscapedLiteral
                                            token: <Id.Lit_EscapedChar '\\"'>
                                          ) <on> (word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\"'>) <' or '> 
                                          (word_part.EscapedLiteral
                                            token: <Id.Lit_EscapedChar '\\"'>
                                          ) <off> (word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\"'>) <' expected.'>
                                        )
                                      }
                                    )
                                  ]
                                  spids: [410 412 -1 429]
                                )
                              ]
                            )
                          ]
                          spids: [346 348 432 -1]
                        )
                        (case_arm
                          pat_list: [{<file>}]
                          action: [
                            (command.If
                              arms: [
                                (if_arm
                                  cond: 
                                    (condition.Shell
                                      commands: [
                                        (command.Sentence
                                          child: 
                                            (command.DParen
                                              child: 
                                                (arith_expr.Binary
                                                  op_id: Id.Arith_DEqual
                                                  left: 
                                                    {
                                                      (braced_var_sub
                                                        token: <Id.VSub_Name args>
                                                        prefix_op: (Id.VSub_Pound)
                                                        bracket_op: 
                                                          (bracket_op.WholeArray
                                                            op_id: Id.Lit_At
                                                          )
                                                      )
                                                    }
                                                  right: {<Id.Lit_Digits 2>}
                                                )
                                            )
                                          terminator: <Id.Op_Semi _>
                                        )
                                      ]
                                    )
                                  action: [
                                    (C {<_Dbg_write_journal_eval>} 
                                      {
                                        (DQ <'_Dbg_logging_file='> 
                                          (braced_var_sub
                                            token: <Id.VSub_Name args>
                                            bracket_op: 
                                              (bracket_op.ArrayIndex
                                                expr: {<Id.Lit_Digits 1>}
                                              )
                                          )
                                        )
                                      }
                                    )
                                  ]
                                  spids: [440 461]
                                )
                              ]
                              else_action: [
                                (C {<_Dbg_msg>} 
                                  {(DQ <'Expecting a single file argument in \'set logging file\'.'>)}
                                )
                              ]
                            )
                          ]
                          spids: [435 437 491 -1]
                        )
                        (case_arm
                          pat_list: [{<Id.Lit_Star '*'>}]
                          action: [
                            (C {<_Dbg_msg>} {(DQ <'Usage: set logging on'>)})
                            (C {<_Dbg_msg>} {(DQ <'set logging off'>)})
                            (C {<_Dbg_msg>} {(DQ <'set logging file FILENAME'>)})
                            (C {<_Dbg_msg>} {(DQ <'set logging overwrite [on|off]'>)})
                            (C {<_Dbg_msg>} {(DQ <'set logging redirect [on|off]'>)})
                          ]
                          spids: [494 496 534 -1]
                        )
                      ]
                    )
                  ]
                  spids: [125 146]
                )
              ]
            )
            (command.ControlFlow token:<Id.ControlFlow_Return return> arg_word:{<0>})
          ]
        )
    )
    (command.ShFunction
      name: _Dbg_do_show_logging
      body: 
        (BraceGroup
          children: [
            (C {<typeset>} {<-a>} 
              {<Id.Lit_VarLike 'args='> 
                (sh_array_literal
                  left: <Id.Op_LParen _>
                  words: [{($ Id.VSub_Star '$*')}]
                )
              }
            )
            (command.If
              arms: [
                (if_arm
                  cond: 
                    (condition.Shell
                      commands: [
                        (command.Sentence
                          child: 
                            (command.DParen
                              child: 
                                (arith_expr.Binary
                                  op_id: Id.Arith_DEqual
                                  left: 
                                    {
                                      (braced_var_sub
                                        token: <Id.VSub_Name args>
                                        prefix_op: (Id.VSub_Pound)
                                        bracket_op: (bracket_op.WholeArray op_id:Id.Lit_At)
                                      )
                                    }
                                  right: {<Id.Lit_Digits 0>}
                                )
                            )
                          terminator: <Id.Op_Semi _>
                        )
                      ]
                    )
                  action: [
                    (C {<_Dbg_msg>} 
                      {
                        (DQ <'Future logs will be written to '> 
                          ($ Id.VSub_DollarName '$_Dbg_logging_file')
                        )
                      }
                    )
                    (command.If
                      arms: [
                        (if_arm
                          cond: 
                            (condition.Shell
                              commands: [
                                (command.Sentence
                                  child: 
                                    (command.DParen
                                      child: <Id.Lit_ArithVarLike _Dbg_logging_overwrite>
                                    )
                                  terminator: <Id.Op_Semi _>
                                )
                              ]
                            )
                          action: [(C {<_Dbg_msg>} {(SQ <'Logs will overwrite the log file.'>)})]
                          spids: [599 610]
                        )
                      ]
                      else_action: [
                        (C {<_Dbg_msg>} {(SQ <'Logs will be appended to the log file.'>)})
                        (command.If
                          arms: [
                            (if_arm
                              cond: 
                                (condition.Shell
                                  commands: [
                                    (command.Sentence
                                      child: 
                                        (command.DParen
                                          child: <Id.Lit_ArithVarLike _Dbg_logging_redirect>
                                        )
                                      terminator: <Id.Op_Semi _>
                                    )
                                  ]
                                )
                              action: [
                                (C {<_Dbg_msg>} {(DQ <'Output will be sent only to the log file.'>)})
                              ]
                              spids: [630 641]
                            )
                          ]
                          else_action: [(C {<_Dbg_msg>} {(DQ <'Output will be logged and displayed.'>)})]
                        )
                      ]
                    )
                  ]
                  spids: [567 588]
                )
              ]
              else_action: [
                (command.Case
                  to_match: 
                    {
                      (braced_var_sub
                        token: <Id.VSub_Name args>
                        bracket_op: (bracket_op.ArrayIndex expr:{<Id.Lit_Digits 0>})
                      )
                    }
                  arms: [
                    (case_arm
                      pat_list: [{<overwrite>}]
                      action: [
                        (C {<local>} {<Id.Lit_VarLike 'onoff='> (DQ <off.>)})
                        (command.AndOr
                          ops: [Id.Op_DAmp]
                          children: [
                            (command.DParen
                              child: 
                                (arith_expr.Binary
                                  op_id: Id.Arith_NEqual
                                  left: <Id.Lit_ArithVarLike _Dbg_logging_overwrite>
                                  right: {<Id.Lit_Digits 0>}
                                )
                            )
                            (command.ShAssignment
                              pairs: [
                                (assign_pair
                                  lhs: (sh_lhs_expr.Name name:onoff)
                                  op: assign_op.Equal
                                  rhs: {(SQ <on.>)}
                                  spids: [709]
                                )
                              ]
                            )
                          ]
                        )
                        (C {<_Dbg_msg>} 
                          {
                            (DQ <'Whether logging overwrites or appends to the log file is '> 
                              (${ Id.VSub_Name onoff)
                            )
                          }
                        )
                      ]
                      spids: [683 685 727 -1]
                    )
                    (case_arm
                      pat_list: [{<redirect>}]
                      action: [
                        (C {<local>} {<Id.Lit_VarLike 'onoff='> (DQ <off.>)})
                        (command.AndOr
                          ops: [Id.Op_DAmp]
                          children: [
                            (command.DParen
                              child: 
                                (arith_expr.Binary
                                  op_id: Id.Arith_NEqual
                                  left: <Id.Lit_ArithVarLike _Dbg_logging_redirect>
                                  right: {<Id.Lit_Digits 0>}
                                )
                            )
                            (command.ShAssignment
                              pairs: [
                                (assign_pair
                                  lhs: (sh_lhs_expr.Name name:onoff)
                                  op: assign_op.Equal
                                  rhs: {(SQ <on.>)}
                                  spids: [756]
                                )
                              ]
                            )
                          ]
                        )
                        (C {<_Dbg_msg>} 
                          {(DQ <'The logging output mode is '> (${ Id.VSub_Name onoff) <.>)}
                        )
                      ]
                      spids: [730 732 773 -1]
                    )
                    (case_arm
                      pat_list: [{<file>}]
                      action: [
                        (C {<_Dbg_msg>} 
                          {(DQ <'The current logfile is '> (${ Id.VSub_Name _Dbg_logging_file))}
                        )
                      ]
                      spids: [776 778 791 -1]
                    )
                    (case_arm
                      pat_list: [{<Id.Lit_Star '*'>}]
                      action: [
                        (C {<_Dbg_undefined_cmd>} {(DQ <'show logging'>)} 
                          {
                            (DQ 
                              (braced_var_sub
                                token: <Id.VSub_Name args>
                                bracket_op: (bracket_op.ArrayIndex expr:{<Id.Lit_Digits 0>})
                              )
                            )
                          }
                        )
                      ]
                      spids: [794 796 815 -1]
                    )
                  ]
                )
              ]
            )
          ]
        )
    )
  ]
)