(command.CommandList
  children: [
    (command.AndOr
      ops: [Id.Op_DAmp Id.Op_DPipe]
      children: [
        (C {<Id.Lit_LBracket '['>} {<Id.KW_Bang '!'>} {<-z>} {(DQ ($ Id.VSub_Number '$1'))} 
          {<Id.Lit_RBracket ']'>}
        )
        (command.ShAssignment
          pairs: [
            (assign_pair
              lhs: (sh_lhs_expr.Name name:mag)
              op: assign_op.Equal
              rhs: {($ Id.VSub_Number '$1')}
              spids: [38]
            )
          ]
        )
        (command.ShAssignment
          pairs: [
            (assign_pair
              lhs: (sh_lhs_expr.Name name:mag)
              op: assign_op.Equal
              rhs: {<2>}
              spids: [43]
            )
          ]
        )
      ]
    )
    (command.ShFunction
      name: fullscreen_xmag_source
      body: 
        (command.BraceGroup
          children: [
            (command.ShAssignment
              pairs: [
                (assign_pair
                  lhs: (sh_lhs_expr.Name name:geometry)
                  op: assign_op.Equal
                  rhs: 
                    {
                      (command_sub
                        left_token: <Id.Left_Backtick '`'>
                        command_list: 
                          (command.CommandList
                            children: [
                              (command.Pipeline
                                children: [
                                  (C {<xwininfo>} {<-root>})
                                  (C {<grep>} {<-E>} {(DQ <geometry>)})
                                  (C {<sed>} {(SQ <'s/.* \\([0-9]*x[0-9]*\\).*/\\1/'>)})
                                ]
                                negated: F
                              )
                            ]
                          )
                      )
                    }
                  spids: [58]
                )
              ]
            )
            (command.ShAssignment
              pairs: [
                (assign_pair
                  lhs: (sh_lhs_expr.Name name:width)
                  op: assign_op.Equal
                  rhs: 
                    {
                      (command_sub
                        left_token: <Id.Left_Backtick '`'>
                        command_list: 
                          (command.CommandList
                            children: [
                              (command.Pipeline
                                children: [
                                  (C {<echo>} {($ Id.VSub_DollarName '$geometry')})
                                  (C {<cut>} {<-dx>} {<-f1>})
                                ]
                                negated: F
                              )
                            ]
                          )
                      )
                    }
                  spids: [92]
                )
              ]
            )
            (command.ShAssignment
              pairs: [
                (assign_pair
                  lhs: (sh_lhs_expr.Name name:height)
                  op: assign_op.Equal
                  rhs: 
                    {
                      (command_sub
                        left_token: <Id.Left_Backtick '`'>
                        command_list: 
                          (command.CommandList
                            children: [
                              (command.Pipeline
                                children: [
                                  (C {<echo>} {($ Id.VSub_DollarName '$geometry')})
                                  (C {<cut>} {<-dx>} {<-f2>})
                                ]
                                negated: F
                              )
                            ]
                          )
                      )
                    }
                  spids: [110]
                )
              ]
            )
            (command.ShAssignment
              pairs: [
                (assign_pair
                  lhs: (sh_lhs_expr.Name name:xmag_menu)
                  op: assign_op.Equal
                  rhs: {<20>}
                  spids: [128]
                )
              ]
            )
            (C {<echo>} 
              {
                (command_sub
                  left_token: <Id.Left_Backtick '`'>
                  command_list: 
                    (command.CommandList
                      children: [
                        (C {<expr>} {($ Id.VSub_DollarName '$width')} {</>} 
                          {($ Id.VSub_DollarName '$mag')}
                        )
                      ]
                    )
                ) <x> 
                (command_sub
                  left_token: <Id.Left_Backtick '`'>
                  command_list: 
                    (command.CommandList
                      children: [
                        (C {<expr>} {(word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\('>)} 
                          {($ Id.VSub_DollarName '$height')} {<->} {($ Id.VSub_DollarName '$xmag_menu')} {(word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\)'>)} 
                          {</>} {($ Id.VSub_DollarName '$mag')}
                        )
                      ]
                    )
                )
              }
            )
          ]
        )
    )
    (C {<xmag>} {<-source>} 
      {
        (command_sub
          left_token: <Id.Left_Backtick '`'>
          command_list: (command.CommandList children:[(C {<fullscreen_xmag_source>})])
        )
      } {<-mag>} {($ Id.VSub_DollarName '$mag')}
    )
  ]
)