(command.CommandList
  children: [
    (command.Simple
      blame_tok: <_Dbg_help_add>
      more_env: []
      words: [
        {<_Dbg_help_add>}
        {<edit>}
        {
          (DQ <'**edit** [*line-number*]\n'> <'\n'> <'Edit specified file at *line-number*.\n'> <'\n'> 
            <'If *line-number* is not given, use the current line number.\n'> <'Uses '> (word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\"'> ch:'"') <EDITOR> 
            (word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\"'> ch:'"') <' environment variable contents as editor (or ex as default).\n'> 
            <'Assumes the editor positions at a file using options '> (word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\"'> ch:'"') <'+linenumber filename'> 
            (word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\"'> ch:'"') <.>
          )
        }
      ]
      redirects: []
      do_fork: T
    )
    (command.ShFunction
      name_tok: <_Dbg_do_edit>
      name: _Dbg_do_edit
      body: 
        (BraceGroup
          left: <Id.Lit_LBrace '{'>
          children: [
            (command.If
              if_kw: <Id.KW_If if>
              arms: [
                (IfArm
                  keyword: <Id.KW_If if>
                  cond: 
                    (condition.Shell
                      commands: [
                        (command.Sentence
                          child: 
                            (command.DParen
                              left: <Id.Op_DLeftParen _>
                              child: 
                                (arith_expr.Binary
                                  op_id: Id.Arith_Great
                                  left: {($ Id.VSub_Pound '#')}
                                  right: {<Id.Lit_Digits 2>}
                                )
                              right: <Id.Op_DRightParen _>
                              redirects: []
                            )
                          terminator: <Id.Op_Semi _>
                        )
                      ]
                    )
                  then_kw: <Id.KW_Then then>
                  action: [
                    (command.Simple
                      blame_tok: <_Dbg_errmsg>
                      more_env: []
                      words: [
                        {<_Dbg_errmsg>}
                        {(DQ <'got '> ($ Id.VSub_Pound '#') <' parameters, but need 0 or 1.'>)}
                      ]
                      redirects: []
                      do_fork: T
                    )
                    (command.ControlFlow
                      keyword: <Id.ControlFlow_Return return>
                      arg_word: {<2>}
                    )
                  ]
                  spids: [91 104]
                )
              ]
              else_action: []
              fi_kw: <Id.KW_Fi fi>
              redirects: []
            )
            (command.Simple
              blame_tok: <typeset>
              more_env: []
              words: [
                {<typeset>}
                {<Id.Lit_VarLike 'editor='> 
                  (BracedVarSub
                    left: <Id.Left_DollarBrace '${'>
                    token: <Id.VSub_Name EDITOR>
                    var_name: EDITOR
                    suffix_op: (suffix_op.Unary op:<Id.VTest_ColonHyphen _> arg_word:{<ex>})
                    right: <Id.Right_DollarBrace '}'>
                  )
                }
              ]
              redirects: []
              do_fork: T
            )
            (command.Simple
              blame_tok: <typeset>
              more_env: []
              words: [{<typeset>} {<-i>} {<line_number>}]
              redirects: []
              do_fork: T
            )
            (command.If
              if_kw: <Id.KW_If if>
              arms: [
                (IfArm
                  keyword: <Id.KW_If if>
                  cond: 
                    (condition.Shell
                      commands: [
                        (command.Sentence
                          child: 
                            (command.DParen
                              left: <Id.Op_DLeftParen _>
                              child: 
                                (arith_expr.Binary
                                  op_id: Id.Arith_DEqual
                                  left: {($ Id.VSub_Pound '#')}
                                  right: {<Id.Lit_Digits 0>}
                                )
                              right: <Id.Op_DRightParen _>
                              redirects: []
                            )
                          terminator: <Id.Op_Semi _>
                        )
                      ]
                    )
                  then_kw: <Id.KW_Then then>
                  action: [
                    (command.ShAssignment
                      left: <Id.Lit_VarLike 'line_number='>
                      pairs: [
                        (AssignPair
                          left: <Id.Lit_VarLike 'line_number='>
                          lhs: 
                            (sh_lhs_expr.Name
                              left: <Id.Lit_VarLike 'line_number='>
                              name: line_number
                            )
                          op: assign_op.Equal
                          rhs: {($ Id.VSub_DollarName _Dbg_frame_last_lineno)}
                        )
                      ]
                      redirects: []
                    )
                    (command.ShAssignment
                      left: <Id.Lit_VarLike 'full_filename='>
                      pairs: [
                        (AssignPair
                          left: <Id.Lit_VarLike 'full_filename='>
                          lhs: 
                            (sh_lhs_expr.Name
                              left: <Id.Lit_VarLike 'full_filename='>
                              name: full_filename
                            )
                          op: assign_op.Equal
                          rhs: {(DQ ($ Id.VSub_DollarName _Dbg_frame_last_filename))}
                        )
                      ]
                      redirects: []
                    )
                  ]
                  spids: [141 156]
                )
              ]
              else_kw: <Id.KW_Else else>
              else_action: [
                (command.Simple
                  blame_tok: <_Dbg_linespec_setup>
                  more_env: []
                  words: [{<_Dbg_linespec_setup>} {(DQ ($ Id.VSub_Number 1))}]
                  redirects: []
                  do_fork: T
                )
              ]
              fi_kw: <Id.KW_Fi fi>
              redirects: []
            )
            (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.LogicalNot
                                  child: 
                                    (bool_expr.Unary
                                      op_id: Id.BoolUnary_r
                                      child: {($ Id.VSub_DollarName full_filename)}
                                    )
                                )
                              right: <Id.Lit_DRightBracket ']]'>
                              redirects: []
                            )
                          terminator: <Id.Op_Semi _>
                        )
                      ]
                    )
                  then_kw: <Id.KW_Then then>
                  action: [
                    (command.Simple
                      blame_tok: <_Dbg_errmsg>
                      more_env: []
                      words: [
                        {<_Dbg_errmsg>}
                        {(DQ <'File '> ($ Id.VSub_DollarName full_filename) <' is not readable'>)}
                      ]
                      redirects: []
                      do_fork: T
                    )
                    (command.ControlFlow
                      keyword: <Id.ControlFlow_Return return>
                      arg_word: {<2>}
                    )
                  ]
                  spids: [182 196]
                )
              ]
              else_action: []
              fi_kw: <Id.KW_Fi fi>
              redirects: []
            )
            (command.Simple
              blame_tok: <Id.VSub_DollarName '$editor'>
              more_env: []
              words: [
                {($ Id.VSub_DollarName editor)}
                {<Id.Lit_Other '+'> ($ Id.VSub_DollarName line_number)}
                {($ Id.VSub_DollarName full_filename)}
              ]
              redirects: []
              do_fork: T
            )
            (command.ShAssignment
              left: <Id.Lit_VarLike 'rc='>
              pairs: [
                (AssignPair
                  left: <Id.Lit_VarLike 'rc='>
                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'rc='> name:rc)
                  op: assign_op.Equal
                  rhs: {($ Id.VSub_QMark '?')}
                )
              ]
              redirects: []
            )
            (command.AndOr
              children: [
                (command.DParen
                  left: <Id.Op_DLeftParen _>
                  child: 
                    (arith_expr.Binary
                      op_id: Id.Arith_DEqual
                      left: ($ Id.Lit_ArithVarLike rc)
                      right: {<Id.Lit_Digits 0>}
                    )
                  right: <Id.Op_DRightParen _>
                  redirects: []
                )
                (command.ShAssignment
                  left: <Id.Lit_VarLike '_Dbg_last_cmd='>
                  pairs: [
                    (AssignPair
                      left: <Id.Lit_VarLike '_Dbg_last_cmd='>
                      lhs: 
                        (sh_lhs_expr.Name
                          left: <Id.Lit_VarLike '_Dbg_last_cmd='>
                          name: _Dbg_last_cmd
                        )
                      op: assign_op.Equal
                      rhs: {(SQ <edit>)}
                    )
                  ]
                  redirects: []
                )
              ]
              ops: [<Id.Op_DAmp _>]
            )
            (command.ControlFlow
              keyword: <Id.ControlFlow_Return return>
              arg_word: {($ Id.VSub_DollarName rc)}
            )
          ]
          redirects: []
          right: <Id.Lit_RBrace '}'>
        )
    )
    (command.Simple
      blame_tok: <_Dbg_alias_add>
      more_env: []
      words: [{<_Dbg_alias_add>} {(SQ <ed>)} {(SQ <edit>)}]
      redirects: []
      do_fork: T
    )
  ]
)