(List
  (Com {[LIT_OTHER ":"]} {[LIT_CHARS convert]} {[LIT_CHARS MAM]} {[LIT_CHARS dependency]} {[LIT_CHARS info]} {[LIT_CHARS to]} {[LIT_CHARS dag]} {[LIT_CHARS input]})
  (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('COMMAND', {[LIT_CHARS mamdag]})])
  (Case to_match={[ComSub (Subshell (List (Com {[LIT_CHARS getopts]} {[SQ <LIT_CHARS "[-][123:xyz]">]} {[LIT_CHARS opt]} {[LIT_CHARS --xyz]}) (Com {[LIT_CHARS echo]} {[LIT_CHARS 0] [VarSub opt]}) ) )]}, pat_word_list=[[{[LIT_CHARS 0123]}], [{[LIT_OTHER "*"]}]]
    (List
      (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('ARGV0', {[DQ [LIT_CHARS "-a "][VarSub COMMAND]]})])
      (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('USAGE', {[SQ <LIT_CHARS "\n"> <LIT_CHARS "[-?\n"> <LIT_CHARS "@(#)$Id: mamdag (AT&T Labs Research) 1998-04-01 $\n"> <LIT_CHARS "]\n">] [VarSub USAGE_LICENSE] [SQ <LIT_CHARS "\n"> <LIT_CHARS "[+NAME?mamdag - make abstract machine to dag dependency graph conversion filter]\n"> <LIT_CHARS "[+DESCRIPTION?\\bmamdag\\b reads MAM (Make Abstract Machine) target and\n"> <LIT_CHARS "\tprerequisite file descriptions from the standard input and writes a\n"> <LIT_CHARS "\t\\bdag\\b(1) description of the dependency graph on the standard output.\n"> <LIT_CHARS "\tMamfiles are generated by the \\b--mam\\b option of \\bnmake\\b(1) and\n"> <LIT_CHARS "\t\\bgmake\\b(1).]\n"> <LIT_CHARS "[+?\\bdag\\b(1) is an obsolete predecessor to \\bdot\\b(1); new applications should\n"> <LIT_CHARS "\tuse \\bmamdot\\b(1) and \\bdot\\b(1).]\n"> <LIT_CHARS "[+SEE ALSO?\\bdag\\b(1), \\bdot\\b(1), \\bmamdot\\b(1), \\bgmake\\b(1), \\bnmake\\b(1)]\n">]})])
    )
    (List
      (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('ARGV0', {[DQ ]})])
      (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('USAGE', {[DQ ]})])
    )
  )
  (FunctionDef usage []
    (List
      (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('OPTIND', {[LIT_CHARS 0]})])
      (Com {[LIT_CHARS getopts]} {[VarSub ARGV0]} {[DQ [VarSub USAGE]]} {[LIT_CHARS OPT]} {[SQ <LIT_CHARS "-?">]})
      (Com {[LIT_CHARS exit]} {[LIT_CHARS 2]})
    )
  )
  (While
    (Com {[LIT_CHARS getopts]} {[VarSub ARGV0]} {[DQ [VarSub USAGE]]} {[LIT_CHARS OPT]})
    (Case to_match={[VarSub OPT]}, pat_word_list=[[{[LIT_OTHER "*"]}]]
      (Com {[LIT_CHARS usage]})
    )
  )
  (Com {[LIT_CHARS integer]} {[LIT_VAR_LIKE "level="] [LIT_CHARS 0] =} {[LIT_VAR_LIKE "line="] [LIT_CHARS 0] =})
  (Com {[LIT_CHARS list] [LIT_OTHER "["] [LIT_CHARS 0] [LIT_OTHER "]"] [LIT_OTHER "="] [LIT_CHARS all]})
  (Com {[LIT_CHARS print]} {[LIT_CHARS .GR]} {[LIT_CHARS 7.50]} {[LIT_CHARS 10.0]})
  (Com {[LIT_CHARS print]} {[LIT_CHARS draw]} {[LIT_CHARS nodes]} {[LIT_CHARS as]} {[LIT_CHARS Box]} {[SQ <LIT_CHARS ";">]})
  (While
    (Com {[LIT_CHARS read]} {[LIT_CHARS op]} {[LIT_CHARS arg]} {[LIT_CHARS arg2]} {[LIT_CHARS argx]})
    (List
      (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('line', {[LIT_CHARS line] [LIT_OTHER "+"] [LIT_CHARS 1]})])
      (Case to_match={[VarSub op]}, pat_word_list=[[{[LIT_OTHER "["] [LIT_CHARS 0-9] [LIT_OTHER "]"] [LIT_OTHER "*"]}]]
        (List
          (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('op', {[VarSub arg]})])
          (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('arg', {[VarSub arg2]})])
          (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('arg2', {[VarSub arg3]})])
          (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('arg3', {[VarSub argx]})])
          (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('argx', {[SQ ]})])
        )
      )
      (Case to_match={[VarSub op]}, pat_word_list=[[{[LIT_CHARS make]}], [{[LIT_CHARS prev]}], [{[LIT_CHARS done]}]]
        (List
          (Case to_match={[DQ [LIT_CHARS " "][VarSub list bracket_op=(Index {A Atom NODE_ARITH_WORD {[VarSub level]}})][LIT_CHARS " "]]}, pat_word_list=[[{[LIT_OTHER "*"] [DQ [LIT_CHARS " "][\ LIT_ESCAPED_CHAR "\\\""][VarSub arg][\ LIT_ESCAPED_CHAR "\\\""][LIT_CHARS " "]] [LIT_OTHER "*"]}], [{[LIT_OTHER "*"]}]]
            (ElseTrue)
            (Com {[LIT_CHARS list] [LIT_OTHER "["] [LIT_CHARS level] [LIT_OTHER "]"] [LIT_OTHER "="] [DQ [VarSub list bracket_op=(Index {A Atom NODE_ARITH_WORD {[VarSub level]}})][LIT_CHARS " "][\ LIT_ESCAPED_CHAR "\\\""][VarSub arg][\ LIT_ESCAPED_CHAR "\\\""]]})
          )
          (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('level', {[LIT_CHARS level] [LIT_OTHER "+"] [LIT_CHARS 1]})])
          (Com {[LIT_CHARS list] [LIT_OTHER "["] [LIT_CHARS level] [LIT_OTHER "]"] [LIT_OTHER "="] [\ LIT_ESCAPED_CHAR "\\\""] [VarSub arg] [\ LIT_ESCAPED_CHAR "\\\""]})
        )
        (Case to_match={[DQ [LIT_CHARS " "][VarSub list bracket_op=(Index {A Atom NODE_ARITH_WORD {[VarSub level]}})][LIT_CHARS " "]]}, pat_word_list=[[{[LIT_OTHER "*"] [DQ [LIT_CHARS " "][\ LIT_ESCAPED_CHAR "\\\""][VarSub arg][\ LIT_ESCAPED_CHAR "\\\""][LIT_CHARS " "]] [LIT_OTHER "*"]}], [{[LIT_OTHER "*"]}]]
          (ElseTrue)
          (Com {[LIT_CHARS list] [LIT_OTHER "["] [LIT_CHARS level] [LIT_OTHER "]"] [LIT_OTHER "="] [DQ [VarSub list bracket_op=(Index {A Atom NODE_ARITH_WORD {[VarSub level]}})][LIT_CHARS " "][\ LIT_ESCAPED_CHAR "\\\""][VarSub arg][\ LIT_ESCAPED_CHAR "\\\""]]})
        )
        (List
          (Case to_match={[VarSub list bracket_op=(Index {A Atom NODE_ARITH_WORD {[VarSub level]}})]}, pat_word_list=[[{[LIT_OTHER "*"] [SQ <LIT_CHARS " ">] [LIT_OTHER "*"]}]]
            (Com {[LIT_CHARS print]} {[VarSub list bracket_op=(Index {A Atom NODE_ARITH_WORD {[VarSub level]}})]} {[SQ <LIT_CHARS ";">]})
          )
          (If
            (DParen {A2 AS_OP_LE {A Atom NODE_ARITH_WORD {[VarSub level]}} {A Atom NODE_ARITH_WORD {[AS_NUM_LITERAL 0]}}})
            (Com {[LIT_CHARS print]} {[LIT_CHARS -u2]} {[DQ [VarSub COMMAND][LIT_CHARS ": line "][VarSub line][LIT_CHARS ": "][VarSub op][LIT_CHARS " "][VarSub arg][LIT_CHARS ": no matching make op"]]})
            (ElseTrue)
            (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('level', {[LIT_CHARS level-1]})])
          )
        )
      )
    )
  )
  (Com {[LIT_CHARS print]} {[LIT_CHARS .GE]})
)