(AndOr
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    (FuncDef
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      body: 
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            (Assignment
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              pairs: [
                (assign_pair lhs:(LhsName name:cur) op:Equal spids:[13])
                (assign_pair lhs:(LhsName name:prev) op:Equal spids:[15])
                (assign_pair lhs:(LhsName name:words) op:Equal spids:[17])
                (assign_pair lhs:(LhsName name:cword) op:Equal spids:[19])
                (assign_pair lhs:(LhsName name:split) op:Equal spids:[21])
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              spids: [11]
            )
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                (C {(_init_completion)} {(-s)})
                (ControlFlow token:<ControlFlow_Return return>)
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                (case_arm
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                  spids: [41 52 58 16777215]
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              spids: [34 38 61]
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                            (BoolBinary
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                      terminator: <Op_Semi ';'>
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                  ]
                  action: [
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                      pairs: [
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                          op: Equal
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                              (ArrayLiteralPart
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                                    (CommandSubPart
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                                        (CommandList
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                                            (C {(compgen)} {(-W)} {(SQ <'$( _parse_help "$1" )'>)} {(--)} 
                                              {(DQ ($ VSub_Name '$cur'))}
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                                      left_token: <Left_CommandSub '$('>
                                      spids: [93 109]
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                      children: [
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                            (BoolBinary
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                  spids: [16777215 87]
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              spids: [16777215 137]
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            (Assignment
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              pairs: [
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                  op: Equal
                  rhs: {(SQ <'@(?(d)patch|dif?(f))'>)}
                  spids: [143]
                )
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              spids: [141]
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              iter_words: [
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                  (BracedVarSub
                    token: <VSub_Name words>
                    bracket_op: (WholeArray op_id:Lit_At)
                    spids: [157 162]
                  )
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              ]
              do_arg_iter: F
              body: 
                (DoGroup
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                        (if_arm
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                                (DBracket
                                  expr: 
                                    (BoolBinary
                                      op_id: BoolBinary_GlobDEqual
                                      left: {($ VSub_Name '$word')}
                                      right: {(-) (ExtGlobPart op:<ExtGlob_At '@('> spids:[177 181])}
                                    )
                                )
                              terminator: <Op_Semi ';'>
                            )
                          ]
                          action: [
                            (Assignment
                              keyword: Assign_None
                              pairs: [
                                (assign_pair
                                  lhs: (LhsName name:exts)
                                  op: PlusEqual
                                  rhs: {(SQ <'?(.@(gz|bz2))'>)}
                                  spids: [189]
                                )
                              ]
                              spids: [189]
                            )
                            (ControlFlow token:<ControlFlow_Break break>)
                          ]
                          spids: [16777215 186]
                        )
                      ]
                      spids: [16777215 198]
                    )
                  ]
                  spids: [165 201]
                )
              spids: [156 163]
            )
            (C {(_filedir)} {(DQ ($ VSub_Name '$exts'))})
          ]
          spids: [8]
        )
      spids: [4 7]
    )
    (C {(complete)} {(-F)} {(_interdiff)} {(interdiff)})
  ]
)