---
Γ := rules "expr"
  expr := rules "expr_function"
    expr_function := rules "{" "formals" "}" ":" "expr_function"
      { := lexemes "{"
        { "{" (1, 1)
      formals := rules "formal" "," "formals"
        formal := rules "ID"
          ID := lexemes "ID"
            ID "lib" (1, 3)
        , := lexemes ","
          , "," (1, 6)
        formals := rules "formal" "," "formals"
          formal := rules "ID"
            ID := lexemes "ID"
              ID "stdenv" (1, 8)
          , := lexemes ","
            , "," (2, 1)
          formals := rules "formal" "," "formals"
            formal := rules "ID"
              ID := lexemes "ID"
                ID "fetchFromGitHub" (2, 3)
            , := lexemes ","
              , "," (3, 1)
            formals := rules "formal" "," "formals"
              formal := rules "ID"
                ID := lexemes "ID"
                  ID "pkg-config" (3, 3)
              , := lexemes ","
                , "," (4, 1)
              formals := rules "formal" "," "formals"
                formal := rules "ID"
                  ID := lexemes "ID"
                    ID "xxd" (4, 3)
                , := lexemes ","
                  , "," (5, 1)
                formals := rules "formal" "," "formals"
                  formal := rules "ID"
                    ID := lexemes "ID"
                      ID "cairo" (5, 3)
                  , := lexemes ","
                    , "," (6, 1)
                  formals := rules "formal" "," "formals"
                    formal := rules "ID"
                      ID := lexemes "ID"
                        ID "fluidsynth" (6, 3)
                    , := lexemes ","
                      , "," (7, 1)
                    formals := rules "formal" "," "formals"
                      formal := rules "ID"
                        ID := lexemes "ID"
                          ID "libX11" (7, 3)
                      , := lexemes ","
                        , "," (8, 1)
                      formals := rules "formal" "," "formals"
                        formal := rules "ID"
                          ID := lexemes "ID"
                            ID "libjack2" (8, 3)
                        , := lexemes ","
                          , "," (9, 1)
                        formals := rules "formal" "," "formals"
                          formal := rules "ID"
                            ID := lexemes "ID"
                              ID "alsa-lib" (9, 3)
                          , := lexemes ","
                            , "," (10, 1)
                          formals := rules "formal" "," "formals"
                            formal := rules "ID"
                              ID := lexemes "ID"
                                ID "liblo" (10, 3)
                            , := lexemes ","
                              , "," (11, 1)
                            formals := rules "formal" "," "formals"
                              formal := rules "ID"
                                ID := lexemes "ID"
                                  ID "libsigcxx" (11, 3)
                              , := lexemes ","
                                , "," (12, 1)
                              formals := rules "formal"
                                formal := rules "ID"
                                  ID := lexemes "ID"
                                    ID "libsmf" (12, 3)
      } := lexemes "}"
        } "}" (13, 1)
      : := lexemes ":"
        : ":" (13, 2)
      expr_function := rules "expr_if"
        expr_if := rules "expr_op"
          expr_op := rules "expr_app"
            expr_app := rules "expr_app" "expr_select"
              expr_app := rules "expr_select"
                expr_select := rules "expr_simple" "." "attrpath"
                  expr_simple := rules "ID"
                    ID := lexemes "ID"
                      ID "stdenv" (15, 1)
                  . := lexemes "."
                    . "." (15, 7)
                  attrpath := rules "attr"
                    attr := rules "ID"
                      ID := lexemes "ID"
                        ID "mkDerivation" (15, 8)
              expr_select := rules "expr_simple"
                expr_simple := rules "REC" "{" "binds" "}"
                  REC := lexemes "REC"
                    REC "rec" (15, 21)
                  { := lexemes "{"
                    { "{" (15, 25)
                  binds := rules "binds" "attrpath" "=" "expr" ";"
                    binds := rules "binds" "attrpath" "=" "expr" ";"
                      binds := rules "binds" "attrpath" "=" "expr" ";"
                        binds := rules "binds" "attrpath" "=" "expr" ";"
                          binds := rules "binds" "attrpath" "=" "expr" ";"
                            binds := rules "binds" "attrpath" "=" "expr" ";"
                              binds := rules "binds" "attrpath" "=" "expr" ";"
                                binds := rules "binds" "attrpath" "=" "expr" ";"
                                  binds := rules 
                                  attrpath := rules "attr"
                                    attr := rules "ID"
                                      ID := lexemes "ID"
                                        ID "pname" (16, 3)
                                  = := lexemes "="
                                    = "=" (16, 9)
                                  expr := rules "expr_function"
                                    expr_function := rules "expr_if"
                                      expr_if := rules "expr_op"
                                        expr_op := rules "expr_app"
                                          expr_app := rules "expr_select"
                                            expr_select := rules "expr_simple"
                                              expr_simple := rules "\"" "string_parts" "\""
                                                " := lexemes "\""
                                                  " "\"" (16, 11)
                                                string_parts := rules "STR"
                                                  STR := lexemes "STR"
                                                    STR "mamba" (16, 12)
                                                " := lexemes "\""
                                                  " "\"" (16, 17)
                                  ; := lexemes ";"
                                    ; ";" (16, 18)
                                attrpath := rules "attr"
                                  attr := rules "ID"
                                    ID := lexemes "ID"
                                      ID "version" (17, 3)
                                = := lexemes "="
                                  = "=" (17, 11)
                                expr := rules "expr_function"
                                  expr_function := rules "expr_if"
                                    expr_if := rules "expr_op"
                                      expr_op := rules "expr_app"
                                        expr_app := rules "expr_select"
                                          expr_select := rules "expr_simple"
                                            expr_simple := rules "\"" "string_parts" "\""
                                              " := lexemes "\""
                                                " "\"" (17, 13)
                                              string_parts := rules "STR"
                                                STR := lexemes "STR"
                                                  STR "2.2" (17, 14)
                                              " := lexemes "\""
                                                " "\"" (17, 17)
                                ; := lexemes ";"
                                  ; ";" (17, 18)
                              attrpath := rules "attr"
                                attr := rules "ID"
                                  ID := lexemes "ID"
                                    ID "src" (19, 3)
                              = := lexemes "="
                                = "=" (19, 7)
                              expr := rules "expr_function"
                                expr_function := rules "expr_if"
                                  expr_if := rules "expr_op"
                                    expr_op := rules "expr_app"
                                      expr_app := rules "expr_app" "expr_select"
                                        expr_app := rules "expr_select"
                                          expr_select := rules "expr_simple"
                                            expr_simple := rules "ID"
                                              ID := lexemes "ID"
                                                ID "fetchFromGitHub" (19, 9)
                                        expr_select := rules "expr_simple"
                                          expr_simple := rules "{" "binds" "}"
                                            { := lexemes "{"
                                              { "{" (19, 25)
                                            binds := rules "binds" "attrpath" "=" "expr" ";"
                                              binds := rules "binds" "attrpath" "=" "expr" ";"
                                                binds := rules "binds" "attrpath" "=" "expr" ";"
                                                  binds := rules "binds" "attrpath" "=" "expr" ";"
                                                    binds := rules "binds" "attrpath" "=" "expr" ";"
                                                      binds := rules 
                                                      attrpath := rules "attr"
                                                        attr := rules "ID"
                                                          ID := lexemes "ID"
                                                            ID "owner" (20, 5)
                                                      = := lexemes "="
                                                        = "=" (20, 11)
                                                      expr := rules "expr_function"
                                                        expr_function := rules "expr_if"
                                                          expr_if := rules "expr_op"
                                                            expr_op := rules "expr_app"
                                                              expr_app := rules "expr_select"
                                                                expr_select := rules "expr_simple"
                                                                  expr_simple := rules "\"" "string_parts" "\""
                                                                    " := lexemes "\""
                                                                      " "\"" (20, 13)
                                                                    string_parts := rules "STR"
                                                                      STR := lexemes "STR"
                                                                        STR "brummer10" (20, 14)
                                                                    " := lexemes "\""
                                                                      " "\"" (20, 23)
                                                      ; := lexemes ";"
                                                        ; ";" (20, 24)
                                                    attrpath := rules "attr"
                                                      attr := rules "ID"
                                                        ID := lexemes "ID"
                                                          ID "repo" (21, 5)
                                                    = := lexemes "="
                                                      = "=" (21, 10)
                                                    expr := rules "expr_function"
                                                      expr_function := rules "expr_if"
                                                        expr_if := rules "expr_op"
                                                          expr_op := rules "expr_app"
                                                            expr_app := rules "expr_select"
                                                              expr_select := rules "expr_simple"
                                                                expr_simple := rules "\"" "string_parts" "\""
                                                                  " := lexemes "\""
                                                                    " "\"" (21, 12)
                                                                  string_parts := rules "STR"
                                                                    STR := lexemes "STR"
                                                                      STR "Mamba" (21, 13)
                                                                  " := lexemes "\""
                                                                    " "\"" (21, 18)
                                                    ; := lexemes ";"
                                                      ; ";" (21, 19)
                                                  attrpath := rules "attr"
                                                    attr := rules "ID"
                                                      ID := lexemes "ID"
                                                        ID "rev" (22, 5)
                                                  = := lexemes "="
                                                    = "=" (22, 9)
                                                  expr := rules "expr_function"
                                                    expr_function := rules "expr_if"
                                                      expr_if := rules "expr_op"
                                                        expr_op := rules "expr_app"
                                                          expr_app := rules "expr_select"
                                                            expr_select := rules "expr_simple"
                                                              expr_simple := rules "\"" "string_parts" "\""
                                                                " := lexemes "\""
                                                                  " "\"" (22, 11)
                                                                string_parts := rules "string_parts_interpolated"
                                                                  string_parts_interpolated := rules "STR" "DOLLAR_CURLY" "expr" "}"
                                                                    STR := lexemes "STR"
                                                                      STR "v" (22, 12)
                                                                    DOLLAR_CURLY := lexemes "DOLLAR_CURLY"
                                                                      DOLLAR_CURLY "${" (22, 13)
                                                                    expr := rules "expr_function"
                                                                      expr_function := rules "expr_if"
                                                                        expr_if := rules "expr_op"
                                                                          expr_op := rules "expr_app"
                                                                            expr_app := rules "expr_select"
                                                                              expr_select := rules "expr_simple"
                                                                                expr_simple := rules "ID"
                                                                                  ID := lexemes "ID"
                                                                                    ID "version" (22, 15)
                                                                    } := lexemes "}"
                                                                      } "}" (22, 22)
                                                                " := lexemes "\""
                                                                  " "\"" (22, 23)
                                                  ; := lexemes ";"
                                                    ; ";" (22, 24)
                                                attrpath := rules "attr"
                                                  attr := rules "ID"
                                                    ID := lexemes "ID"
                                                      ID "sha256" (23, 5)
                                                = := lexemes "="
                                                  = "=" (23, 12)
                                                expr := rules "expr_function"
                                                  expr_function := rules "expr_if"
                                                    expr_if := rules "expr_op"
                                                      expr_op := rules "expr_app"
                                                        expr_app := rules "expr_select"
                                                          expr_select := rules "expr_simple"
                                                            expr_simple := rules "\"" "string_parts" "\""
                                                              " := lexemes "\""
                                                                " "\"" (23, 14)
                                                              string_parts := rules "STR"
                                                                STR := lexemes "STR"
                                                                  STR "1885qxyfkpslzk0aaaaws0x73b10h9nbr04jkk7xhkya25gf280m" (23, 15)
                                                              " := lexemes "\""
                                                                " "\"" (23, 67)
                                                ; := lexemes ";"
                                                  ; ";" (23, 68)
                                              attrpath := rules "attr"
                                                attr := rules "ID"
                                                  ID := lexemes "ID"
                                                    ID "fetchSubmodules" (24, 5)
                                              = := lexemes "="
                                                = "=" (24, 21)
                                              expr := rules "expr_function"
                                                expr_function := rules "expr_if"
                                                  expr_if := rules "expr_op"
                                                    expr_op := rules "expr_app"
                                                      expr_app := rules "expr_select"
                                                        expr_select := rules "expr_simple"
                                                          expr_simple := rules "ID"
                                                            ID := lexemes "ID"
                                                              ID "true" (24, 23)
                                              ; := lexemes ";"
                                                ; ";" (24, 27)
                                            } := lexemes "}"
                                              } "}" (25, 3)
                              ; := lexemes ";"
                                ; ";" (25, 4)
                            attrpath := rules "attr"
                              attr := rules "ID"
                                ID := lexemes "ID"
                                  ID "nativeBuildInputs" (27, 3)
                            = := lexemes "="
                              = "=" (27, 21)
                            expr := rules "expr_function"
                              expr_function := rules "expr_if"
                                expr_if := rules "expr_op"
                                  expr_op := rules "expr_app"
                                    expr_app := rules "expr_select"
                                      expr_select := rules "expr_simple"
                                        expr_simple := rules "[" "expr_list" "]"
                                          [ := lexemes "["
                                            [ "[" (27, 23)
                                          expr_list := rules "expr_list" "expr_select"
                                            expr_list := rules "expr_list" "expr_select"
                                              expr_list := rules 
                                              expr_select := rules "expr_simple"
                                                expr_simple := rules "ID"
                                                  ID := lexemes "ID"
                                                    ID "pkg-config" (27, 25)
                                            expr_select := rules "expr_simple"
                                              expr_simple := rules "ID"
                                                ID := lexemes "ID"
                                                  ID "xxd" (27, 36)
                                          ] := lexemes "]"
                                            ] "]" (27, 40)
                            ; := lexemes ";"
                              ; ";" (27, 41)
                          attrpath := rules "attr"
                            attr := rules "ID"
                              ID := lexemes "ID"
                                ID "buildInputs" (28, 3)
                          = := lexemes "="
                            = "=" (28, 15)
                          expr := rules "expr_function"
                            expr_function := rules "expr_if"
                              expr_if := rules "expr_op"
                                expr_op := rules "expr_app"
                                  expr_app := rules "expr_select"
                                    expr_select := rules "expr_simple"
                                      expr_simple := rules "[" "expr_list" "]"
                                        [ := lexemes "["
                                          [ "[" (28, 17)
                                        expr_list := rules "expr_list" "expr_select"
                                          expr_list := rules "expr_list" "expr_select"
                                            expr_list := rules "expr_list" "expr_select"
                                              expr_list := rules "expr_list" "expr_select"
                                                expr_list := rules "expr_list" "expr_select"
                                                  expr_list := rules "expr_list" "expr_select"
                                                    expr_list := rules "expr_list" "expr_select"
                                                      expr_list := rules "expr_list" "expr_select"
                                                        expr_list := rules 
                                                        expr_select := rules "expr_simple"
                                                          expr_simple := rules "ID"
                                                            ID := lexemes "ID"
                                                              ID "cairo" (28, 19)
                                                      expr_select := rules "expr_simple"
                                                        expr_simple := rules "ID"
                                                          ID := lexemes "ID"
                                                            ID "fluidsynth" (28, 25)
                                                    expr_select := rules "expr_simple"
                                                      expr_simple := rules "ID"
                                                        ID := lexemes "ID"
                                                          ID "libX11" (28, 36)
                                                  expr_select := rules "expr_simple"
                                                    expr_simple := rules "ID"
                                                      ID := lexemes "ID"
                                                        ID "libjack2" (28, 43)
                                                expr_select := rules "expr_simple"
                                                  expr_simple := rules "ID"
                                                    ID := lexemes "ID"
                                                      ID "alsa-lib" (28, 52)
                                              expr_select := rules "expr_simple"
                                                expr_simple := rules "ID"
                                                  ID := lexemes "ID"
                                                    ID "liblo" (28, 61)
                                            expr_select := rules "expr_simple"
                                              expr_simple := rules "ID"
                                                ID := lexemes "ID"
                                                  ID "libsigcxx" (28, 67)
                                          expr_select := rules "expr_simple"
                                            expr_simple := rules "ID"
                                              ID := lexemes "ID"
                                                ID "libsmf" (28, 77)
                                        ] := lexemes "]"
                                          ] "]" (28, 84)
                          ; := lexemes ";"
                            ; ";" (28, 85)
                        attrpath := rules "attr"
                          attr := rules "ID"
                            ID := lexemes "ID"
                              ID "makeFlags" (30, 3)
                        = := lexemes "="
                          = "=" (30, 13)
                        expr := rules "expr_function"
                          expr_function := rules "expr_if"
                            expr_if := rules "expr_op"
                              expr_op := rules "expr_app"
                                expr_app := rules "expr_select"
                                  expr_select := rules "expr_simple"
                                    expr_simple := rules "[" "expr_list" "]"
                                      [ := lexemes "["
                                        [ "[" (30, 15)
                                      expr_list := rules "expr_list" "expr_select"
                                        expr_list := rules 
                                        expr_select := rules "expr_simple"
                                          expr_simple := rules "\"" "string_parts" "\""
                                            " := lexemes "\""
                                              " "\"" (30, 17)
                                            string_parts := rules "STR"
                                              STR := lexemes "STR"
                                                STR "PREFIX=$(out)" (30, 18)
                                            " := lexemes "\""
                                              " "\"" (30, 31)
                                      ] := lexemes "]"
                                        ] "]" (30, 33)
                        ; := lexemes ";"
                          ; ";" (30, 34)
                      attrpath := rules "attr"
                        attr := rules "ID"
                          ID := lexemes "ID"
                            ID "enableParallelBuilding" (32, 3)
                      = := lexemes "="
                        = "=" (32, 26)
                      expr := rules "expr_function"
                        expr_function := rules "expr_if"
                          expr_if := rules "expr_op"
                            expr_op := rules "expr_app"
                              expr_app := rules "expr_select"
                                expr_select := rules "expr_simple"
                                  expr_simple := rules "ID"
                                    ID := lexemes "ID"
                                      ID "true" (32, 28)
                      ; := lexemes ";"
                        ; ";" (32, 32)
                    attrpath := rules "attr"
                      attr := rules "ID"
                        ID := lexemes "ID"
                          ID "meta" (34, 3)
                    = := lexemes "="
                      = "=" (34, 8)
                    expr := rules "expr_function"
                      expr_function := rules "WITH" "expr" ";" "expr_function"
                        WITH := lexemes "WITH"
                          WITH "with" (34, 10)
                        expr := rules "expr_function"
                          expr_function := rules "expr_if"
                            expr_if := rules "expr_op"
                              expr_op := rules "expr_app"
                                expr_app := rules "expr_select"
                                  expr_select := rules "expr_simple"
                                    expr_simple := rules "ID"
                                      ID := lexemes "ID"
                                        ID "lib" (34, 15)
                        ; := lexemes ";"
                          ; ";" (34, 18)
                        expr_function := rules "expr_if"
                          expr_if := rules "expr_op"
                            expr_op := rules "expr_app"
                              expr_app := rules "expr_select"
                                expr_select := rules "expr_simple"
                                  expr_simple := rules "{" "binds" "}"
                                    { := lexemes "{"
                                      { "{" (34, 20)
                                    binds := rules "binds" "attrpath" "=" "expr" ";"
                                      binds := rules "binds" "attrpath" "=" "expr" ";"
                                        binds := rules "binds" "attrpath" "=" "expr" ";"
                                          binds := rules "binds" "attrpath" "=" "expr" ";"
                                            binds := rules "binds" "attrpath" "=" "expr" ";"
                                              binds := rules 
                                              attrpath := rules "attr"
                                                attr := rules "ID"
                                                  ID := lexemes "ID"
                                                    ID "homepage" (35, 5)
                                              = := lexemes "="
                                                = "=" (35, 14)
                                              expr := rules "expr_function"
                                                expr_function := rules "expr_if"
                                                  expr_if := rules "expr_op"
                                                    expr_op := rules "expr_app"
                                                      expr_app := rules "expr_select"
                                                        expr_select := rules "expr_simple"
                                                          expr_simple := rules "\"" "string_parts" "\""
                                                            " := lexemes "\""
                                                              " "\"" (35, 16)
                                                            string_parts := rules "STR"
                                                              STR := lexemes "STR"
                                                                STR "https://github.com/brummer10/Mamba" (35, 17)
                                                            " := lexemes "\""
                                                              " "\"" (35, 51)
                                              ; := lexemes ";"
                                                ; ";" (35, 52)
                                            attrpath := rules "attr"
                                              attr := rules "ID"
                                                ID := lexemes "ID"
                                                  ID "description" (36, 5)
                                            = := lexemes "="
                                              = "=" (36, 17)
                                            expr := rules "expr_function"
                                              expr_function := rules "expr_if"
                                                expr_if := rules "expr_op"
                                                  expr_op := rules "expr_app"
                                                    expr_app := rules "expr_select"
                                                      expr_select := rules "expr_simple"
                                                        expr_simple := rules "\"" "string_parts" "\""
                                                          " := lexemes "\""
                                                            " "\"" (36, 19)
                                                          string_parts := rules "STR"
                                                            STR := lexemes "STR"
                                                              STR "Virtual MIDI keyboard for Jack Audio Connection Kit" (36, 20)
                                                          " := lexemes "\""
                                                            " "\"" (36, 71)
                                            ; := lexemes ";"
                                              ; ";" (36, 72)
                                          attrpath := rules "attr"
                                            attr := rules "ID"
                                              ID := lexemes "ID"
                                                ID "license" (37, 5)
                                          = := lexemes "="
                                            = "=" (37, 13)
                                          expr := rules "expr_function"
                                            expr_function := rules "expr_if"
                                              expr_if := rules "expr_op"
                                                expr_op := rules "expr_app"
                                                  expr_app := rules "expr_select"
                                                    expr_select := rules "expr_simple" "." "attrpath"
                                                      expr_simple := rules "ID"
                                                        ID := lexemes "ID"
                                                          ID "licenses" (37, 15)
                                                      . := lexemes "."
                                                        . "." (37, 23)
                                                      attrpath := rules "attr"
                                                        attr := rules "ID"
                                                          ID := lexemes "ID"
                                                            ID "bsd0" (37, 24)
                                          ; := lexemes ";"
                                            ; ";" (37, 28)
                                        attrpath := rules "attr"
                                          attr := rules "ID"
                                            ID := lexemes "ID"
                                              ID "maintainers" (38, 5)
                                        = := lexemes "="
                                          = "=" (38, 17)
                                        expr := rules "expr_function"
                                          expr_function := rules "WITH" "expr" ";" "expr_function"
                                            WITH := lexemes "WITH"
                                              WITH "with" (38, 19)
                                            expr := rules "expr_function"
                                              expr_function := rules "expr_if"
                                                expr_if := rules "expr_op"
                                                  expr_op := rules "expr_app"
                                                    expr_app := rules "expr_select"
                                                      expr_select := rules "expr_simple"
                                                        expr_simple := rules "ID"
                                                          ID := lexemes "ID"
                                                            ID "maintainers" (38, 24)
                                            ; := lexemes ";"
                                              ; ";" (38, 35)
                                            expr_function := rules "expr_if"
                                              expr_if := rules "expr_op"
                                                expr_op := rules "expr_app"
                                                  expr_app := rules "expr_select"
                                                    expr_select := rules "expr_simple"
                                                      expr_simple := rules "[" "expr_list" "]"
                                                        [ := lexemes "["
                                                          [ "[" (38, 37)
                                                        expr_list := rules "expr_list" "expr_select"
                                                          expr_list := rules "expr_list" "expr_select"
                                                            expr_list := rules 
                                                            expr_select := rules "expr_simple"
                                                              expr_simple := rules "ID"
                                                                ID := lexemes "ID"
                                                                  ID "magnetophon" (38, 39)
                                                          expr_select := rules "expr_simple"
                                                            expr_simple := rules "ID"
                                                              ID := lexemes "ID"
                                                                ID "orivej" (38, 51)
                                                        ] := lexemes "]"
                                                          ] "]" (38, 58)
                                        ; := lexemes ";"
                                          ; ";" (38, 59)
                                      attrpath := rules "attr"
                                        attr := rules "ID"
                                          ID := lexemes "ID"
                                            ID "platforms" (39, 5)
                                      = := lexemes "="
                                        = "=" (39, 15)
                                      expr := rules "expr_function"
                                        expr_function := rules "expr_if"
                                          expr_if := rules "expr_op"
                                            expr_op := rules "expr_app"
                                              expr_app := rules "expr_select"
                                                expr_select := rules "expr_simple" "." "attrpath"
                                                  expr_simple := rules "ID"
                                                    ID := lexemes "ID"
                                                      ID "platforms" (39, 17)
                                                  . := lexemes "."
                                                    . "." (39, 26)
                                                  attrpath := rules "attr"
                                                    attr := rules "ID"
                                                      ID := lexemes "ID"
                                                        ID "linux" (39, 27)
                                      ; := lexemes ";"
                                        ; ";" (39, 32)
                                    } := lexemes "}"
                                      } "}" (40, 3)
                    ; := lexemes ";"
                      ; ";" (40, 4)
                  } := lexemes "}"
                    } "}" (41, 1)