(command.CommandList
  children: [
    (C {<_Dbg_help_add>} {<Id.ControlFlow_Break break>} 
      {
        (SQ <'**break** [*loc-spec*]\n'> <'\n'> <'Set a breakpoint at *loc-spec*.\n'> <'\n'> 
          <'If no location specification is given, use the current line.\n'> <'\n'> <'Multiple breakpoints at one place are permitted, and useful if conditional.\n'> <'\n'> 
          <'See also:\n'> <'---------\n'> <'\n'> <'"tbreak" and "continue"'>
        )
      }
    )
    (C {<_Dbg_help_add>} {<tbreak>} 
      {
        (SQ <'**tbreak* [*loc-spec*]\n'> <'\n'> <'Set a one-time breakpoint at *loc-spec*.\n'> <'\n'> 
          <'Like "break" except the breakpoint is only temporary,\n'> <'so it will be deleted when hit.  Equivalent to "break" followed\n'> 
          <'by using "delete" on the breakpoint number.\n'> <'\n'> <'If no location specification is given, use the current line.'>
        )
      }
    )
    (command.ShFunction
      name: _Dbg_do_tbreak
      body: 
        (BraceGroup
          children: [
            (C {<_Dbg_do_break_common>} {<1>} {($ Id.VSub_At '$@')})
            (command.ControlFlow
              token: <Id.ControlFlow_Return return>
              arg_word: {($ Id.VSub_QMark '$?')}
            )
          ]
        )
    )
    (command.ShFunction
      name: _Dbg_do_break
      body: 
        (BraceGroup
          children: [
            (C {<_Dbg_do_break_common>} {<0>} {($ Id.VSub_At '$@')})
            (command.ControlFlow
              token: <Id.ControlFlow_Return return>
              arg_word: {($ Id.VSub_QMark '$?')}
            )
          ]
        )
    )
    (command.ShFunction
      name: _Dbg_do_break_common
      body: 
        (BraceGroup
          children: [
            (C {<typeset>} {<-i>} {<Id.Lit_VarLike 'is_temp='> ($ Id.VSub_Number '$1')})
            (C {<shift>})
            (C {<typeset>} {<linespec>})
            (command.If
              arms: [
                (if_arm
                  cond: 
                    (condition.Shell
                      commands: [
                        (command.Sentence
                          child: 
                            (command.DParen
                              child: 
                                (arith_expr.Binary
                                  op_id: Id.Arith_Great
                                  left: {($ Id.VSub_Pound '$#')}
                                  right: {<Id.Lit_Digits 0>}
                                )
                            )
                          terminator: <Id.Op_Semi _>
                        )
                      ]
                    )
                  action: [
                    (command.ShAssignment
                      pairs: [
                        (assign_pair
                          lhs: (sh_lhs_expr.Name name:linespec)
                          op: assign_op.Equal
                          rhs: {(DQ ($ Id.VSub_Number '$1'))}
                          spids: [185]
                        )
                      ]
                    )
                  ]
                  spids: [167 182]
                )
              ]
              else_action: [
                (command.ShAssignment
                  pairs: [
                    (assign_pair
                      lhs: (sh_lhs_expr.Name name:linespec)
                      op: assign_op.Equal
                      rhs: {(DQ ($ Id.VSub_DollarName '$_Dbg_frame_last_lineno'))}
                      spids: [194]
                    )
                  ]
                )
              ]
            )
            (C {<shift>})
            (C {<typeset>} 
              {<Id.Lit_VarLike 'condition='> 
                (braced_var_sub
                  token: <Id.VSub_Number 1>
                  suffix_op: (suffix_op.Unary tok:<Id.VTest_ColonHyphen ':-'> arg_word:{(SQ )})
                )
              }
            )
            (command.If
              arms: [
                (if_arm
                  cond: 
                    (condition.Shell
                      commands: [
                        (command.Sentence
                          child: 
                            (command.DBracket
                              expr: 
                                (bool_expr.Binary
                                  op_id: Id.BoolBinary_GlobDEqual
                                  left: {(DQ ($ Id.VSub_DollarName '$linespec'))}
                                  right: {(SQ <if>)}
                                )
                            )
                          terminator: <Id.Op_Semi _>
                        )
                      ]
                    )
                  action: [
                    (command.ShAssignment
                      pairs: [
                        (assign_pair
                          lhs: (sh_lhs_expr.Name name:linespec)
                          op: assign_op.Equal
                          rhs: {($ Id.VSub_DollarName '$_Dbg_frame_last_lineno')}
                          spids: [238]
                        )
                      ]
                    )
                  ]
                  spids: [218 235]
                )
                (if_arm
                  cond: 
                    (condition.Shell
                      commands: [
                        (command.Sentence
                          child: 
                            (command.DBracket
                              expr: 
                                (bool_expr.Unary
                                  op_id: Id.BoolUnary_z
                                  child: {($ Id.VSub_DollarName '$condition')}
                                )
                            )
                          terminator: <Id.Op_Semi _>
                        )
                      ]
                    )
                  action: [
                    (command.ShAssignment
                      pairs: [
                        (assign_pair
                          lhs: (sh_lhs_expr.Name name:condition)
                          op: assign_op.Equal
                          rhs: {<1>}
                          spids: [257]
                        )
                      ]
                    )
                  ]
                  spids: [242 254]
                )
                (if_arm
                  cond: 
                    (condition.Shell
                      commands: [
                        (command.Sentence
                          child: 
                            (command.DBracket
                              expr: 
                                (bool_expr.Binary
                                  op_id: Id.BoolBinary_GlobDEqual
                                  left: {($ Id.VSub_DollarName '$condition')}
                                  right: {(SQ <if>)}
                                )
                            )
                          terminator: <Id.Op_Semi _>
                        )
                      ]
                    )
                  action: [(C {<shift>})]
                  spids: [261 277]
                )
              ]
            )
            (command.If
              arms: [
                (if_arm
                  cond: 
                    (condition.Shell
                      commands: [
                        (command.Sentence
                          child: 
                            (command.DBracket
                              expr: 
                                (bool_expr.Unary
                                  op_id: Id.BoolUnary_z
                                  child: {($ Id.VSub_DollarName '$condition')}
                                )
                            )
                          terminator: <Id.Op_Semi _>
                        )
                      ]
                    )
                  action: [
                    (command.ShAssignment
                      pairs: [
                        (assign_pair
                          lhs: (sh_lhs_expr.Name name:condition)
                          op: assign_op.Equal
                          rhs: {<1>}
                          spids: [301]
                        )
                      ]
                    )
                  ]
                  spids: [286 298]
                )
              ]
              else_action: [
                (command.ShAssignment
                  pairs: [
                    (assign_pair
                      lhs: (sh_lhs_expr.Name name:condition)
                      op: assign_op.Equal
                      rhs: {(DQ ($ Id.VSub_Star '$*'))}
                      spids: [308]
                    )
                  ]
                )
              ]
            )
            (C {<typeset>} {<filename>})
            (C {<typeset>} {<-i>} {<line_number>})
            (C {<typeset>} {<full_filename>})
            (C {<_Dbg_linespec_setup>} {(DQ ($ Id.VSub_DollarName '$linespec'))})
            (command.If
              arms: [
                (if_arm
                  cond: 
                    (condition.Shell
                      commands: [
                        (command.Sentence
                          child: 
                            (command.DBracket
                              expr: 
                                (bool_expr.Unary
                                  op_id: Id.BoolUnary_n
                                  child: {(DQ ($ Id.VSub_DollarName '$full_filename'))}
                                )
                            )
                          terminator: <Id.Op_Semi _>
                        )
                      ]
                    )
                  action: [
                    (command.If
                      arms: [
                        (if_arm
                          cond: 
                            (condition.Shell
                              commands: [
                                (command.Sentence
                                  child: 
                                    (command.DParen
                                      child: 
                                        (arith_expr.Binary
                                          op_id: Id.Arith_DEqual
                                          left: <Id.Lit_ArithVarLike line_number>
                                          right: {<Id.Lit_Digits 0>}
                                        )
                                    )
                                  terminator: <Id.Op_Semi _>
                                )
                              ]
                            )
                          action: [
                            (C {<_Dbg_errmsg>} {(SQ <'There is no line 0 to break at.'>)})
                            (command.ControlFlow
                              token: <Id.ControlFlow_Return return>
                              arg_word: {<1>}
                            )
                          ]
                          spids: [361 376]
                        )
                      ]
                      else_action: [
                        (C {<_Dbg_check_line>} {($ Id.VSub_DollarName '$line_number')} 
                          {(DQ ($ Id.VSub_DollarName '$full_filename'))}
                        )
                        (command.AndOr
                          ops: [Id.Op_DAmp]
                          children: [
                            (command.DParen
                              child: 
                                (arith_expr.Binary
                                  op_id: Id.Arith_DEqual
                                  left: {($ Id.VSub_QMark '$?')}
                                  right: {<Id.Lit_Digits 0>}
                                )
                            )
                            (C {<_Dbg_set_brkpt>} {(DQ ($ Id.VSub_DollarName '$full_filename'))} 
                              {(DQ ($ Id.VSub_DollarName '$line_number'))} {($ Id.VSub_DollarName '$is_temp')} {(DQ ($ Id.VSub_DollarName '$condition'))}
                            )
                          ]
                        )
                      ]
                    )
                  ]
                  spids: [344 358]
                )
              ]
              else_action: [
                (C {<_Dbg_file_not_read_in>} {(DQ ($ Id.VSub_DollarName '$full_filename'))})
                (command.ControlFlow
                  token: <Id.ControlFlow_Return return>
                  arg_word: {<2>}
                )
              ]
            )
            (command.ControlFlow token:<Id.ControlFlow_Return return> arg_word:{<0>})
          ]
        )
    )
    (command.ShFunction
      name: _Dbg_do_clear_brkpt
      body: 
        (BraceGroup
          children: [
            (C {<typeset>} {<-r>} 
              {<Id.Lit_VarLike 'n='> 
                (braced_var_sub
                  token: <Id.VSub_Number 1>
                  suffix_op: 
                    (suffix_op.Unary
                      tok: <Id.VTest_ColonHyphen ':-'>
                      arg_word: {($ Id.VSub_DollarName '$_Dbg_frame_lineno')}
                    )
                )
              }
            )
            (C {<typeset>} {<filename>})
            (C {<typeset>} {<-i>} {<line_number>})
            (C {<typeset>} {<full_filename>})
            (C {<_Dbg_linespec_setup>} {($ Id.VSub_DollarName '$n')})
            (command.If
              arms: [
                (if_arm
                  cond: 
                    (condition.Shell
                      commands: [
                        (command.Sentence
                          child: 
                            (command.DBracket
                              expr: 
                                (bool_expr.Unary
                                  op_id: Id.BoolUnary_n
                                  child: {($ Id.VSub_DollarName '$full_filename')}
                                )
                            )
                          terminator: <Id.Op_Semi _>
                        )
                      ]
                    )
                  action: [
                    (command.If
                      arms: [
                        (if_arm
                          cond: 
                            (condition.Shell
                              commands: [
                                (command.Sentence
                                  child: 
                                    (command.DParen
                                      child: 
                                        (arith_expr.Binary
                                          op_id: Id.Arith_DEqual
                                          left: <Id.Lit_ArithVarLike line_number>
                                          right: {<Id.Lit_Digits 0>}
                                        )
                                    )
                                  terminator: <Id.Op_Semi _>
                                )
                              ]
                            )
                          action: [
                            (C {<_Dbg_msg>} {(DQ <'There is no line 0 to clear.'>)})
                            (command.ControlFlow
                              token: <Id.ControlFlow_Return return>
                              arg_word: {<0>}
                            )
                          ]
                          spids: [528 543]
                        )
                      ]
                      else_action: [
                        (C {<_Dbg_check_line>} {($ Id.VSub_DollarName '$line_number')} 
                          {(DQ ($ Id.VSub_DollarName '$full_filename'))}
                        )
                        (command.If
                          arms: [
                            (if_arm
                              cond: 
                                (condition.Shell
                                  commands: [
                                    (command.Sentence
                                      child: 
                                        (command.DParen
                                          child: 
                                            (arith_expr.Binary
                                              op_id: Id.Arith_DEqual
                                              left: {($ Id.VSub_QMark '$?')}
                                              right: {<Id.Lit_Digits 0>}
                                            )
                                        )
                                      terminator: <Id.Op_Semi _>
                                    )
                                  ]
                                )
                              action: [
                                (C {<_Dbg_unset_brkpt>} {(DQ ($ Id.VSub_DollarName '$full_filename'))} 
                                  {(DQ ($ Id.VSub_DollarName '$line_number'))}
                                )
                                (C {<typeset>} {<-r>} {<Id.Lit_VarLike 'found='> ($ Id.VSub_QMark '$?')})
                                (command.If
                                  arms: [
                                    (if_arm
                                      cond: 
                                        (condition.Shell
                                          commands: [
                                            (command.Sentence
                                              child: 
                                                (command.DBracket
                                                  expr: 
                                                    (bool_expr.Binary
                                                      op_id: Id.BoolBinary_GlobNEqual
                                                      left: {($ Id.VSub_DollarName '$found')}
                                                      right: {<0>}
                                                    )
                                                )
                                              terminator: <Id.Op_Semi _>
                                            )
                                          ]
                                        )
                                      action: [
                                        (C {<_Dbg_msg>} 
                                          {
                                            (DQ <'Removed '> ($ Id.VSub_DollarName '$found') 
                                              <' breakpoint(s).'>
                                            )
                                          }
                                        )
                                        (command.ControlFlow
                                          token: <Id.ControlFlow_Return return>
                                          arg_word: {($ Id.VSub_DollarName '$found')}
                                        )
                                      ]
                                      spids: [607 621]
                                    )
                                  ]
                                )
                              ]
                              spids: [570 585]
                            )
                          ]
                        )
                      ]
                    )
                  ]
                  spids: [513 525]
                )
              ]
              else_action: [
                (C {<_Dbg_file_not_read_in>} {(DQ ($ Id.VSub_DollarName '$full_filename'))})
                (command.ControlFlow
                  token: <Id.ControlFlow_Return return>
                  arg_word: {<0>}
                )
              ]
            )
          ]
        )
    )
    (command.ShFunction
      name: _Dbg_do_list_brkpt
      body: 
        (BraceGroup
          children: [
            (C {<eval>} {(DQ ($ Id.VSub_DollarName '$_seteglob'))})
            (command.If
              arms: [
                (if_arm
                  cond: 
                    (condition.Shell
                      commands: [
                        (command.Sentence
                          child: 
                            (command.DParen
                              child: 
                                (arith_expr.Binary
                                  op_id: Id.Arith_NEqual
                                  left: {($ Id.VSub_Pound '$#')}
                                  right: {<Id.Lit_Digits 0>}
                                )
                            )
                          terminator: <Id.Op_Semi _>
                        )
                      ]
                    )
                  action: [
                    (C {<typeset>} {<Id.Lit_VarLike 'brkpt_num='> (DQ ($ Id.VSub_Number '$1'))})
                    (command.If
                      arms: [
                        (if_arm
                          cond: 
                            (condition.Shell
                              commands: [
                                (command.Sentence
                                  child: 
                                    (command.DBracket
                                      expr: 
                                        (bool_expr.Binary
                                          op_id: Id.BoolBinary_GlobNEqual
                                          left: {($ Id.VSub_DollarName '$brkpt_num')}
                                          right: {($ Id.VSub_DollarName '$int_pat')}
                                        )
                                    )
                                  terminator: <Id.Op_Semi _>
                                )
                              ]
                            )
                          action: [
                            (C {<_Dbg_errmsg>} 
                              {
                                (DQ <'Bad breakpoint number '> ($ Id.VSub_DollarName '$brkpt_num') <.>)
                              }
                            )
                          ]
                          spids: [714 727]
                        )
                        (if_arm
                          cond: 
                            (condition.Shell
                              commands: [
                                (command.Sentence
                                  child: 
                                    (command.DBracket
                                      expr: 
                                        (bool_expr.Unary
                                          op_id: Id.BoolUnary_z
                                          child: 
                                            {
                                              (braced_var_sub
                                                token: <Id.VSub_Name _Dbg_brkpt_file>
                                                bracket_op: 
                                                  (bracket_op.ArrayIndex
                                                    expr: {($ Id.VSub_DollarName '$brkpt_num')}
                                                  )
                                              )
                                            }
                                        )
                                    )
                                  terminator: <Id.Op_Semi _>
                                )
                              ]
                            )
                          action: [
                            (C {<_Dbg_errmsg>} 
                              {
                                (DQ <'Breakpoint entry '> ($ Id.VSub_DollarName '$brkpt_num') 
                                  <' is not set.'>
                                )
                              }
                            )
                          ]
                          spids: [739 756]
                        )
                      ]
                      else_action: [
                        (C {<typeset>} {<-r>} {<-i>} 
                          {<Id.Lit_VarLike 'i='> ($ Id.VSub_DollarName '$brkpt_num')}
                        )
                        (C {<typeset>} 
                          {<Id.Lit_VarLike 'source_file='> 
                            (braced_var_sub
                              token: <Id.VSub_Name _Dbg_brkpt_file>
                              bracket_op: (bracket_op.ArrayIndex expr:{($ Id.VSub_DollarName '$i')})
                            )
                          }
                        )
                        (command.ShAssignment
                          pairs: [
                            (assign_pair
                              lhs: (sh_lhs_expr.Name name:source_file)
                              op: assign_op.Equal
                              rhs: 
                                {
                                  (command_sub
                                    left_token: <Id.Left_DollarParen '$('>
                                    child: 
                                      (C {<_Dbg_adjust_filename>} 
                                        {(DQ ($ Id.VSub_DollarName '$source_file'))}
                                      )
                                  )
                                }
                              spids: [792]
                            )
                          ]
                        )
                        (C {<_Dbg_section>} {(DQ <'Num Type       Disp Enb What'>)})
                        (C {<_Dbg_printf>} {(DQ <'%-3d breakpoint %-4s %-3s %s:%s'>)} 
                          {($ Id.VSub_DollarName '$i')} 
                          {
                            (braced_var_sub
                              token: <Id.VSub_Name _Dbg_keep>
                              bracket_op: 
                                (bracket_op.ArrayIndex
                                  expr: 
                                    {
                                      (braced_var_sub
                                        token: <Id.VSub_Name _Dbg_brkpt_onetime>
                                        bracket_op: 
                                          (bracket_op.ArrayIndex
                                            expr: {($ Id.VSub_DollarName '$i')}
                                          )
                                      )
                                    }
                                )
                            )
                          } 
                          {
                            (braced_var_sub
                              token: <Id.VSub_Name _Dbg_yn>
                              bracket_op: 
                                (bracket_op.ArrayIndex
                                  expr: 
                                    {
                                      (braced_var_sub
                                        token: <Id.VSub_Name _Dbg_brkpt_enable>
                                        bracket_op: 
                                          (bracket_op.ArrayIndex
                                            expr: {($ Id.VSub_DollarName '$i')}
                                          )
                                      )
                                    }
                                )
                            )
                          } {(DQ ($ Id.VSub_DollarName '$source_file'))} 
                          {
                            (braced_var_sub
                              token: <Id.VSub_Name _Dbg_brkpt_line>
                              bracket_op: (bracket_op.ArrayIndex expr:{($ Id.VSub_DollarName '$i')})
                            )
                          }
                        )
                        (command.If
                          arms: [
                            (if_arm
                              cond: 
                                (condition.Shell
                                  commands: [
                                    (command.Sentence
                                      child: 
                                        (command.DBracket
                                          expr: 
                                            (bool_expr.Binary
                                              op_id: Id.BoolBinary_GlobNEqual
                                              left: 
                                                {
                                                  (braced_var_sub
                                                    token: <Id.VSub_Name _Dbg_brkpt_cond>
                                                    bracket_op: 
                                                      (bracket_op.ArrayIndex
                                                        expr: {($ Id.VSub_DollarName '$i')}
                                                      )
                                                  )
                                                }
                                              right: {(SQ <1>)}
                                            )
                                        )
                                      terminator: <Id.Op_Semi _>
                                    )
                                  ]
                                )
                              action: [
                                (C {<_Dbg_printf>} 
                                  {(DQ <Id.Lit_BadBackslash '\\'> <'tstop only if %s'>)} 
                                  {
                                    (DQ 
                                      (braced_var_sub
                                        token: <Id.VSub_Name _Dbg_brkpt_cond>
                                        bracket_op: 
                                          (bracket_op.ArrayIndex
                                            expr: {($ Id.VSub_DollarName '$i')}
                                          )
                                      )
                                    )
                                  }
                                )
                              ]
                              spids: [859 880]
                            )
                          ]
                        )
                        (C {<_Dbg_print_brkpt_count>} 
                          {
                            (braced_var_sub
                              token: <Id.VSub_Name _Dbg_brkpt_count>
                              bracket_op: (bracket_op.ArrayIndex expr:{($ Id.VSub_DollarName '$i')})
                            )
                          }
                        )
                      ]
                    )
                    (C {<eval>} {(DQ ($ Id.VSub_DollarName '$_resteglob'))})
                    (command.ControlFlow
                      token: <Id.ControlFlow_Return return>
                      arg_word: {<0>}
                    )
                  ]
                  spids: [688 703]
                )
                (if_arm
                  cond: 
                    (condition.Shell
                      commands: [
                        (command.Sentence
                          child: 
                            (command.DParen
                              child: 
                                (arith_expr.Binary
                                  op_id: Id.Arith_NEqual
                                  left: 
                                    {
                                      (braced_var_sub
                                        token: <Id.VSub_Name _Dbg_brkpt_line>
                                        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 {<typeset>} {<-i>} {<i>})
                    (C {<_Dbg_section>} {(DQ <'Num Type       Disp Enb What'>)})
                    (command.ForExpr
                      init: 
                        (arith_expr.BinaryAssign
                          op_id: Id.Arith_Equal
                          left: <Id.Lit_ArithVarLike i>
                          right: {<Id.Lit_Digits 1>}
                        )
                      cond: 
                        (arith_expr.Binary
                          op_id: Id.Arith_LessEqual
                          left: <Id.Lit_ArithVarLike i>
                          right: <Id.Lit_ArithVarLike _Dbg_brkpt_max>
                        )
                      update: 
                        (arith_expr.UnaryAssign
                          op_id: Id.Node_PostDPlus
                          child: <Id.Lit_ArithVarLike i>
                        )
                      body: 
                        (command.DoGroup
                          children: [
                            (C {<typeset>} 
                              {<Id.Lit_VarLike 'source_file='> 
                                (braced_var_sub
                                  token: <Id.VSub_Name _Dbg_brkpt_file>
                                  bracket_op: 
                                    (bracket_op.ArrayIndex
                                      expr: {($ Id.VSub_DollarName '$i')}
                                    )
                                )
                              }
                            )
                            (command.If
                              arms: [
                                (if_arm
                                  cond: 
                                    (condition.Shell
                                      commands: [
                                        (command.Sentence
                                          child: 
                                            (command.DBracket
                                              expr: 
                                                (bool_expr.Unary
                                                  op_id: Id.BoolUnary_n
                                                  child: 
                                                    {
                                                      (braced_var_sub
                                                        token: <Id.VSub_Name _Dbg_brkpt_line>
                                                        bracket_op: 
                                                          (bracket_op.ArrayIndex
                                                            expr: {($ Id.VSub_DollarName '$i')}
                                                          )
                                                      )
                                                    }
                                                )
                                            )
                                          terminator: <Id.Op_Semi _>
                                        )
                                      ]
                                    )
                                  action: [
                                    (command.ShAssignment
                                      pairs: [
                                        (assign_pair
                                          lhs: (sh_lhs_expr.Name name:source_file)
                                          op: assign_op.Equal
                                          rhs: 
                                            {
                                              (command_sub
                                                left_token: <Id.Left_DollarParen '$('>
                                                child: 
                                                  (C {<_Dbg_adjust_filename>} 
                                                    {(DQ ($ Id.VSub_DollarName '$source_file'))}
                                                  )
                                              )
                                            }
                                          spids: [1024]
                                        )
                                      ]
                                    )
                                    (C {<_Dbg_printf>} {(DQ <'%-3d breakpoint %-4s %-3s %s:%s'>)} 
                                      {($ Id.VSub_DollarName '$i')} 
                                      {
                                        (braced_var_sub
                                          token: <Id.VSub_Name _Dbg_keep>
                                          bracket_op: 
                                            (bracket_op.ArrayIndex
                                              expr: 
                                                {
                                                  (braced_var_sub
                                                    token: <Id.VSub_Name _Dbg_brkpt_onetime>
                                                    bracket_op: 
                                                      (bracket_op.ArrayIndex
                                                        expr: {($ Id.VSub_DollarName '$i')}
                                                      )
                                                  )
                                                }
                                            )
                                        )
                                      } 
                                      {
                                        (braced_var_sub
                                          token: <Id.VSub_Name _Dbg_yn>
                                          bracket_op: 
                                            (bracket_op.ArrayIndex
                                              expr: 
                                                {
                                                  (braced_var_sub
                                                    token: <Id.VSub_Name _Dbg_brkpt_enable>
                                                    bracket_op: 
                                                      (bracket_op.ArrayIndex
                                                        expr: {($ Id.VSub_DollarName '$i')}
                                                      )
                                                  )
                                                }
                                            )
                                        )
                                      } {(DQ ($ Id.VSub_DollarName '$source_file'))} 
                                      {
                                        (braced_var_sub
                                          token: <Id.VSub_Name _Dbg_brkpt_line>
                                          bracket_op: 
                                            (bracket_op.ArrayIndex
                                              expr: {($ Id.VSub_DollarName '$i')}
                                            )
                                        )
                                      }
                                    )
                                    (command.If
                                      arms: [
                                        (if_arm
                                          cond: 
                                            (condition.Shell
                                              commands: [
                                                (command.Sentence
                                                  child: 
                                                    (command.DBracket
                                                      expr: 
                                                        (bool_expr.Binary
                                                          op_id: Id.BoolBinary_GlobNEqual
                                                          left: 
                                                            {
                                                              (braced_var_sub
                                                                token: <Id.VSub_Name _Dbg_brkpt_cond>
                                                                bracket_op: 
                                                                  (bracket_op.ArrayIndex
                                                                    expr: 
                                                                      {($ Id.VSub_DollarName '$i')}
                                                                  )
                                                              )
                                                            }
                                                          right: {(SQ <1>)}
                                                        )
                                                    )
                                                  terminator: <Id.Op_Semi _>
                                                )
                                              ]
                                            )
                                          action: [
                                            (C {<_Dbg_printf>} 
                                              {(DQ <Id.Lit_BadBackslash '\\'> <'tstop only if %s'>)} 
                                              {
                                                (DQ 
                                                  (braced_var_sub
                                                    token: <Id.VSub_Name _Dbg_brkpt_cond>
                                                    bracket_op: 
                                                      (bracket_op.ArrayIndex
                                                        expr: {($ Id.VSub_DollarName '$i')}
                                                      )
                                                  )
                                                )
                                              }
                                            )
                                          ]
                                          spids: [1084 1105]
                                        )
                                      ]
                                    )
                                    (command.If
                                      arms: [
                                        (if_arm
                                          cond: 
                                            (condition.Shell
                                              commands: [
                                                (command.Sentence
                                                  child: 
                                                    (command.DParen
                                                      child: 
                                                        (arith_expr.Binary
                                                          op_id: Id.Arith_NEqual
                                                          left: 
                                                            (arith_expr.Binary
                                                              op_id: Id.Arith_LBracket
                                                              left: 
                                                                <Id.Lit_ArithVarLike 
_Dbg_brkpt_counts
                                                                >
                                                              right: {($ Id.VSub_DollarName '$i')}
                                                            )
                                                          right: {<Id.Lit_Digits 0>}
                                                        )
                                                    )
                                                  terminator: <Id.Op_Semi _>
                                                )
                                              ]
                                            )
                                          action: [
                                            (C {<_Dbg_print_brkpt_count>} 
                                              {
                                                (braced_var_sub
                                                  token: <Id.VSub_Name _Dbg_brkpt_counts>
                                                  bracket_op: 
                                                    (bracket_op.ArrayIndex
                                                      expr: {($ Id.VSub_DollarName '$i')}
                                                    )
                                                )
                                              }
                                            )
                                          ]
                                          spids: [1128 1146]
                                        )
                                      ]
                                    )
                                  ]
                                  spids: [1004 1021]
                                )
                              ]
                            )
                          ]
                        )
                    )
                    (command.ControlFlow
                      token: <Id.ControlFlow_Return return>
                      arg_word: {<0>}
                    )
                  ]
                  spids: [928 948]
                )
              ]
              else_action: [
                (C {<_Dbg_msg>} {(SQ <'No breakpoints have been set.'>)})
                (command.ControlFlow
                  token: <Id.ControlFlow_Return return>
                  arg_word: {<1>}
                )
              ]
            )
          ]
        )
    )
    (C {<_Dbg_alias_add>} {<b>} {<Id.ControlFlow_Break break>})
  ]
)