(CommandList
  children: [
    (C {(typeset)} {(Lit_VarLike "_Dbg_bogus_file=") (SQ <" A really bogus file">)})
    (C {(typeset)} {(-A)} {(_Dbg_file2canonic)})
    (Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (LhsName name:_Dbg_file2canonic)
          op: Equal
          rhs: {(ArrayLiteralPart)}
          spids: [75]
        )
      ]
      spids: [75]
    )
    (C {(typeset)} {(-A)} {(_Dbg_fileinfo)})
    (C {(typeset)} {(-A)} {(_Dbg_filenames)})
    (FuncDef
      name: _Dbg_filecache_reset
      body: 
        (BraceGroup
          children: [
            (Assignment
              keyword: Assign_None
              pairs: [
                (assign_pair
                  lhs: (LhsName name:_Dbg_filenames)
                  op: Equal
                  rhs: {(ArrayLiteralPart)}
                  spids: [110]
                )
              ]
              spids: [110]
            )
            (Assignment
              keyword: Assign_None
              pairs: [
                (assign_pair
                  lhs: (LhsName name:_Dbg_fileinfo)
                  op: Equal
                  rhs: {(ArrayLiteralPart)}
                  spids: [115]
                )
              ]
              spids: [115]
            )
            (Assignment
              keyword: Assign_None
              pairs: [
                (assign_pair
                  lhs: (LhsName name:_Dbg_file2canonic)
                  op: Equal
                  rhs: {(ArrayLiteralPart)}
                  spids: [120]
                )
              ]
              spids: [120]
            )
          ]
          spids: [107]
        )
      spids: [103 106]
    )
    (C {(_Dbg_filecache_reset)})
    (FuncDef
      name: _Dbg_check_line
      body: 
        (BraceGroup
          children: [
            (AndOr
              children: [
                (DParen
                  child: 
                    (ArithBinary
                      op_id: Arith_NEqual
                      left: (ArithWord w:{($ VSub_Pound "$#")})
                      right: (ArithWord w:{(Lit_Digits 2)})
                    )
                )
                (ControlFlow token:<ControlFlow_Return return> arg_word:{(1)})
              ]
              op_id: Op_DAmp
            )
            (C {(typeset)} {(-i)} {(Lit_VarLike "line_number=") ($ VSub_Number "$1")})
            (C {(typeset)} {(Lit_VarLike "filename=") (DQ ($ VSub_Number "$2"))})
            (C {(typeset)} {(-i)} {(max_line)})
            (Assignment
              keyword: Assign_None
              pairs: [
                (assign_pair
                  lhs: (LhsName name:max_line)
                  op: Equal
                  rhs: 
                    {
                      (CommandSubPart
                        command_list: 
                          (CommandList
                            children: [(C {(_Dbg_get_maxline)} {(DQ ($ VSub_Name "$filename"))})]
                          )
                        left_token: <Left_CommandSub "$(">
                        spids: [184 190]
                      )
                    }
                  spids: [183]
                )
              ]
              spids: [183]
            )
            (If
              arms: [
                (if_arm
                  cond: [
                    (Sentence
                      child: 
                        (DParen
                          child: 
                            (ArithBinary
                              op_id: Arith_NEqual
                              left: (ArithWord w:{($ VSub_QMark "$?")})
                              right: (ArithWord w:{(Lit_Digits 0)})
                            )
                        )
                      terminator: <Op_Semi ";">
                    )
                  ]
                  action: [
                    (C {(_Dbg_errmsg)} 
                      {(DQ ("internal error getting number of lines in ") ($ VSub_Name "$filename"))}
                    )
                    (ControlFlow token:<ControlFlow_Return return> arg_word:{(1)})
                  ]
                  spids: [-1 208]
                )
              ]
              spids: [-1 224]
            )
            (If
              arms: [
                (if_arm
                  cond: [
                    (Sentence
                      child: 
                        (DParen
                          child: 
                            (ArithBinary
                              op_id: Arith_Great
                              left: (ArithVarRef name:line_number)
                              right: (ArithVarRef name:max_line)
                            )
                        )
                      terminator: <Op_Semi ";">
                    )
                  ]
                  action: [
                    (AndOr
                      children: [
                        (DParen child:(ArithVarRef name:_Dbg_set_basename))
                        (Assignment
                          keyword: Assign_None
                          pairs: [
                            (assign_pair
                              lhs: (LhsName name:filename)
                              op: Equal
                              rhs: 
                                {
                                  (BracedVarSub
                                    token: <VSub_Name filename>
                                    suffix_op: 
                                      (StringUnary
                                        op_id: VOp1_DPound
                                        arg_word: {("*") (Lit_Slash /)}
                                      )
                                    spids: [256 261]
                                  )
                                }
                              spids: [255]
                            )
                          ]
                          spids: [255]
                        )
                      ]
                      op_id: Op_DAmp
                    )
                    (C {(_Dbg_errmsg)} {(DQ ("Line ") ($ VSub_Name "$line_number") (" is too large."))} 
                      {
                        (DQ ("File ") ($ VSub_Name "$filename") (" has only ") ($ VSub_Name "$max_line") 
                          (" lines.")
                        )
                      }
                    )
                    (ControlFlow token:<ControlFlow_Return return> arg_word:{(1)})
                  ]
                  spids: [-1 243]
                )
              ]
              spids: [-1 288]
            )
            (ControlFlow token:<ControlFlow_Return return> arg_word:{(0)})
          ]
          spids: [139]
        )
      spids: [135 138]
    )
    (FuncDef
      name: _Dbg_file_not_read_in
      body: 
        (BraceGroup
          children: [
            (C {(typeset)} {(-r)} 
              {(Lit_VarLike "filename=") 
                (CommandSubPart
                  command_list: 
                    (CommandList
                      children: [(C {(_Dbg_adjust_filename)} {(DQ ($ VSub_Number "$1"))})]
                    )
                  left_token: <Left_CommandSub "$(">
                  spids: [313 319]
                )
              }
            )
            (C {(_Dbg_errmsg)} 
              {
                (DQ ("File ") (EscapedLiteralPart token:<Lit_EscapedChar "\\\"">) 
                  ($ VSub_Name "$filename") (EscapedLiteralPart token:<Lit_EscapedChar "\\\"">) (" not found in read-in files.")
                )
              }
            )
            (C {(_Dbg_errmsg)} {(DQ ("See 'info files' for a list of known files and"))})
            (C {(_Dbg_errmsg)} {(DQ ("'load' to read in a file."))})
          ]
          spids: [305]
        )
      spids: [301 304]
    )
    (FuncDef
      name: _Dbg_get_maxline
      body: 
        (BraceGroup
          children: [
            (AndOr
              children: [
                (DParen
                  child: 
                    (ArithBinary
                      op_id: Arith_NEqual
                      left: (ArithWord w:{($ VSub_Pound "$#")})
                      right: (ArithWord w:{(Lit_Digits 1)})
                    )
                )
                (ControlFlow token:<ControlFlow_Return return> arg_word:{(-1)})
              ]
              op_id: Op_DAmp
            )
            (AndOr
              children: [
                (C {(_Dbg_set_source_array_var)} {(DQ ($ VSub_Number "$1"))})
                (ControlFlow
                  token: <ControlFlow_Return return>
                  arg_word: {($ VSub_QMark "$?")}
                )
              ]
              op_id: Op_DPipe
            )
            (C {(typeset)} {(-r)} 
              {(Lit_VarLike "line_count_cmd=") 
                (DQ ("line_count=") (EscapedLiteralPart token:<Lit_EscapedChar "\\$">) ("{#") 
                  ($ VSub_Name "$_Dbg_source_array_var") ("[@]}")
                )
              }
            )
            (C {(eval)} {($ VSub_Name "$line_count_cmd")})
            (C {(eval)} 
              {
                (DQ ("typeset last_line; last_line=") 
                  (EscapedLiteralPart token:<Lit_EscapedChar "\\$">) ("{") (${ VSub_Name _Dbg_source_array_var) ("[") ($ VSub_Name "$line_count") ("]}")
                )
              }
            )
            (C {(typeset)} {(-i)} {(Lit_VarLike "last_not_null=") (0)})
            (DParen
              child: 
                (BinaryAssign
                  op_id: Arith_Equal
                  left: (LhsName name:line_count)
                  right: 
                    (ArithBinary
                      op_id: Arith_Minus
                      left: (ArithVarRef name:line_count)
                      right: (ArithVarRef name:last_line_is_null)
                    )
                )
            )
            (C {(echo)} {($ VSub_Name "$line_count")})
            (ControlFlow token:<ControlFlow_Return return> arg_word:{($ VSub_QMark "$?")})
          ]
          spids: [359]
        )
      spids: [355 358]
    )
    (FuncDef
      name: _Dbg_get_source_line
      body: 
        (BraceGroup
          children: [
            (C {(typeset)} {(-i)} {(lineno)})
            (If
              arms: [
                (if_arm
                  cond: [
                    (Sentence
                      child: 
                        (DParen
                          child: 
                            (ArithBinary
                              op_id: Arith_DEqual
                              left: (ArithWord w:{($ VSub_Pound "$#")})
                              right: (ArithWord w:{(Lit_Digits 0)})
                            )
                        )
                      terminator: <Op_Semi ";">
                    )
                  ]
                  action: [
                    (Assignment
                      keyword: Assign_None
                      pairs: [
                        (assign_pair
                          lhs: (LhsName name:lineno)
                          op: Equal
                          rhs: {($ VSub_Name "$_Dbg_frame_last_lineno")}
                          spids: [517]
                        )
                      ]
                      spids: [517]
                    )
                  ]
                  spids: [-1 514]
                )
              ]
              else_action: [
                (Assignment
                  keyword: Assign_None
                  pairs: [
                    (assign_pair
                      lhs: (LhsName name:lineno)
                      op: Equal
                      rhs: {($ VSub_Number "$1")}
                      spids: [524]
                    )
                  ]
                  spids: [524]
                )
                (C {(shift)})
              ]
              spids: [521 531]
            )
            (C {(typeset)} {(filename)})
            (If
              arms: [
                (if_arm
                  cond: [
                    (Sentence
                      child: 
                        (DParen
                          child: 
                            (ArithBinary
                              op_id: Arith_DEqual
                              left: (ArithWord w:{($ VSub_Pound "$#")})
                              right: (ArithWord w:{(Lit_Digits 0)})
                            )
                        )
                      terminator: <Op_Semi ";">
                    )
                  ]
                  action: [
                    (Assignment
                      keyword: Assign_None
                      pairs: [
                        (assign_pair
                          lhs: (LhsName name:filename)
                          op: Equal
                          rhs: {(DQ ($ VSub_Name "$_Dbg_frame_last_filename"))}
                          spids: [557]
                        )
                      ]
                      spids: [557]
                    )
                  ]
                  spids: [-1 554]
                )
              ]
              else_action: [
                (Assignment
                  keyword: Assign_None
                  pairs: [
                    (assign_pair
                      lhs: (LhsName name:filename)
                      op: Equal
                      rhs: {(DQ ($ VSub_Number "$1"))}
                      spids: [566]
                    )
                  ]
                  spids: [566]
                )
              ]
              spids: [563 572]
            )
            (C {(_Dbg_readin_if_new)} {(DQ ($ VSub_Name "$filename"))})
            (If
              arms: [
                (if_arm
                  cond: [
                    (Sentence
                      child: 
                        (AndOr
                          children: [
                            (DBracket
                              expr: 
                                (BoolUnary
                                  op_id: BoolUnary_n
                                  child: {($ VSub_Name "$_Dbg_set_highlight")}
                                )
                            )
                            (DBracket
                              expr: 
                                (BoolUnary
                                  op_id: BoolUnary_n
                                  child: {($ VSub_Name "$_Dbg_highlight_array_var")}
                                )
                            )
                          ]
                          op_id: Op_DAmp
                        )
                      terminator: <Op_Semi ";">
                    )
                  ]
                  action: [
                    (C {(eval)} 
                      {
                        (DQ ("typeset -i count=") (EscapedLiteralPart token:<Lit_EscapedChar "\\$">) 
                          ("{#") ($ VSub_Name "$_Dbg_highlight_array_var") ("[@]}")
                        )
                      }
                    )
                    (If
                      arms: [
                        (if_arm
                          cond: [
                            (Sentence
                              child: (DParen child:(ArithVarRef name:count))
                              terminator: <Op_Semi ";">
                            )
                          ]
                          action: [
                            (C {(eval)} 
                              {
                                (DQ ("_Dbg_source_line=") 
                                  (EscapedLiteralPart
                                    token: <Lit_EscapedChar "\\$">
                                  ) ("{") ($ VSub_Name "$_Dbg_highlight_array_var") ("[lineno]}")
                                )
                              }
                            )
                          ]
                          spids: [-1 628]
                        )
                      ]
                      else_action: [
                        (C {(eval)} 
                          {
                            (DQ ("_Dbg_source_line=") 
                              (EscapedLiteralPart
                                token: <Lit_EscapedChar "\\$">
                              ) ("{") ($ VSub_Name "$_Dbg_source_array_var") ("[") ($ VSub_Name "$lineno") ("]}")
                            )
                          }
                        )
                      ]
                      spids: [642 658]
                    )
                  ]
                  spids: [-1 603]
                )
              ]
              else_action: [
                (C {(eval)} 
                  {
                    (DQ ("_Dbg_source_line=") (EscapedLiteralPart token:<Lit_EscapedChar "\\$">) ("{") 
                      ($ VSub_Name "$_Dbg_source_array_var") ("[") ($ VSub_Name "$lineno") ("]}")
                    )
                  }
                )
              ]
              spids: [661 677]
            )
          ]
          spids: [490]
        )
      spids: [486 489]
    )
    (FuncDef
      name: _Dbg_is_file
      body: 
        (BraceGroup
          children: [
            (If
              arms: [
                (if_arm
                  cond: [
                    (Sentence
                      child: 
                        (DParen
                          child: 
                            (ArithBinary
                              op_id: Arith_DEqual
                              left: (ArithWord w:{($ VSub_Pound "$#")})
                              right: (ArithWord w:{(Lit_Digits 0)})
                            )
                        )
                      terminator: <Op_Semi ";">
                    )
                  ]
                  action: [
                    (C {(_Dbg_errmsg)} {(DQ ("Internal debug error _Dbg_is_file(): null file to find"))})
                    (C {(echo)} {(SQ )})
                    (ControlFlow token:<ControlFlow_Return return> arg_word:{(1)})
                  ]
                  spids: [-1 710]
                )
              ]
              spids: [-1 731]
            )
            (C {(typeset)} {(Lit_VarLike "find_file=") (DQ ($ VSub_Number "$1"))})
            (C {(typeset)} {(try_find_file)})
            (If
              arms: [
                (if_arm
                  cond: [
                    (Sentence
                      child: 
                        (DBracket
                          expr: (BoolUnary op_id:BoolUnary_z child:{($ VSub_Name "$find_file")})
                        )
                      terminator: <Op_Semi ";">
                    )
                  ]
                  action: [
                    (C {(_Dbg_errmsg)} 
                      {(DQ ("Internal debug error _Dbg_is_file(): file argument null"))}
                    )
                    (C {(echo)} {(SQ )})
                    (ControlFlow token:<ControlFlow_Return return> arg_word:{(1)})
                  ]
                  spids: [-1 760]
                )
              ]
              spids: [-1 781]
            )
            (If
              arms: [
                (if_arm
                  cond: [
                    (Sentence
                      child: 
                        (DBracket
                          expr: 
                            (BoolBinary
                              op_id: BoolBinary_GlobDEqual
                              left: 
                                {
                                  (BracedVarSub
                                    token: <VSub_Name find_file>
                                    suffix_op: 
                                      (Slice
                                        begin: (ArithWord w:{(Lit_Digits 0)})
                                        length: (ArithWord w:{(Lit_Digits 1)})
                                      )
                                    spids: [789 795]
                                  )
                                }
                              right: {(SQ </>)}
                            )
                        )
                      terminator: <Op_Semi ";">
                    )
                  ]
                  action: [
                    (Assignment
                      keyword: Assign_None
                      pairs: [
                        (assign_pair
                          lhs: (LhsName name:try_find_file)
                          op: Equal
                          rhs: 
                            {
                              (CommandSubPart
                                command_list: 
                                  (CommandList
                                    children: [
                                      (C {(_Dbg_expand_filename)} {(DQ ($ VSub_Name "$find_file"))})
                                    ]
                                  )
                                left_token: <Left_CommandSub "$(">
                                spids: [815 821]
                              )
                            }
                          spids: [814]
                        )
                      ]
                      spids: [814]
                    )
                    (If
                      arms: [
                        (if_arm
                          cond: [
                            (Sentence
                              child: 
                                (DBracket
                                  expr: 
                                    (BoolUnary
                                      op_id: BoolUnary_n
                                      child: 
                                        {
                                          (BracedVarSub
                                            token: <VSub_Name _Dbg_filenames>
                                            bracket_op: 
                                              (ArrayIndex
                                                expr: (ArithWord w:{($ VSub_Name "$try_find_file")})
                                              )
                                            spids: [830 835]
                                          )
                                        }
                                    )
                                )
                              terminator: <Op_Semi ";">
                            )
                          ]
                          action: [
                            (C {(echo)} {(DQ ($ VSub_Name "$try_find_file"))})
                            (ControlFlow
                              token: <ControlFlow_Return return>
                              arg_word: {(0)}
                            )
                          ]
                          spids: [-1 841]
                        )
                      ]
                      spids: [-1 856]
                    )
                  ]
                  spids: [-1 807]
                )
                (if_arm
                  cond: [
                    (Sentence
                      child: 
                        (DBracket
                          expr: 
                            (BoolBinary
                              op_id: BoolBinary_GlobDEqual
                              left: 
                                {
                                  (BracedVarSub
                                    token: <VSub_Name find_file>
                                    suffix_op: 
                                      (Slice
                                        begin: (ArithWord w:{(Lit_Digits 0)})
                                        length: (ArithWord w:{(Lit_Digits 1)})
                                      )
                                    spids: [863 869]
                                  )
                                }
                              right: {(SQ <.>)}
                            )
                        )
                      terminator: <Op_Semi ";">
                    )
                  ]
                  action: [
                    (Assignment
                      keyword: Assign_None
                      pairs: [
                        (assign_pair
                          lhs: (LhsName name:try_find_file)
                          op: Equal
                          rhs: 
                            {
                              (CommandSubPart
                                command_list: 
                                  (CommandList
                                    children: [
                                      (C {(_Dbg_expand_filename)} 
                                        {
                                          (DQ (${ VSub_Name _Dbg_init_cwd) (/) 
                                            ($ VSub_Name "$find_file")
                                          )
                                        }
                                      )
                                    ]
                                  )
                                left_token: <Left_CommandSub "$(">
                                spids: [889 899]
                              )
                            }
                          spids: [888]
                        )
                      ]
                      spids: [888]
                    )
                    (If
                      arms: [
                        (if_arm
                          cond: [
                            (Sentence
                              child: 
                                (DBracket
                                  expr: 
                                    (BoolUnary
                                      op_id: BoolUnary_n
                                      child: 
                                        {
                                          (BracedVarSub
                                            token: <VSub_Name _Dbg_filenames>
                                            bracket_op: 
                                              (ArrayIndex
                                                expr: (ArithWord w:{($ VSub_Name "$try_find_file")})
                                              )
                                            spids: [912 917]
                                          )
                                        }
                                    )
                                )
                              terminator: <Op_Semi ";">
                            )
                          ]
                          action: [
                            (C {(echo)} {(DQ ($ VSub_Name "$try_find_file"))})
                            (ControlFlow
                              token: <ControlFlow_Return return>
                              arg_word: {(0)}
                            )
                          ]
                          spids: [-1 923]
                        )
                      ]
                      spids: [-1 938]
                    )
                  ]
                  spids: [859 881]
                )
              ]
              else_action: [
                (C {(typeset)} {(-i)} 
                  {(Lit_VarLike "n=") 
                    (BracedVarSub
                      token: <VSub_Name _Dbg_dir>
                      prefix_op: VSub_Pound
                      bracket_op: (WholeArray op_id:Lit_At)
                      spids: [953 959]
                    )
                  }
                )
                (C {(typeset)} {(-i)} {(i)})
                (ForExpr
                  init: 
                    (BinaryAssign
                      op_id: Arith_Equal
                      left: (LhsName name:i)
                      right: (ArithWord w:{(Lit_Digits 0)})
                    )
                  cond: 
                    (ArithBinary
                      op_id: Arith_Less
                      left: (ArithVarRef name:i)
                      right: (ArithVarRef name:n)
                    )
                  update: (UnaryAssign op_id:Node_PostDPlus child:(LhsName name:i))
                  body: 
                    (DoGroup
                      children: [
                        (C {(typeset)} 
                          {(Lit_VarLike "basename=") 
                            (DQ 
                              (BracedVarSub
                                token: <VSub_Name _Dbg_dir>
                                bracket_op: (ArrayIndex expr:(ArithVarRef name:i))
                                spids: [1001 1006]
                              )
                            )
                          }
                        )
                        (If
                          arms: [
                            (if_arm
                              cond: [
                                (Sentence
                                  child: 
                                    (DBracket
                                      expr: 
                                        (BoolBinary
                                          op_id: BoolBinary_GlobDEqual
                                          left: {($ VSub_Name "$basename")}
                                          right: {(SQ <"\\$cdir">)}
                                        )
                                    )
                                  terminator: <Op_Semi ";">
                                )
                              ]
                              action: [
                                (Assignment
                                  keyword: Assign_None
                                  pairs: [
                                    (assign_pair
                                      lhs: (LhsName name:basename)
                                      op: Equal
                                      rhs: {($ VSub_Name "$_Dbg_cdir")}
                                      spids: [1029]
                                    )
                                  ]
                                  spids: [1029]
                                )
                              ]
                              spids: [-1 1026]
                            )
                            (if_arm
                              cond: [
                                (Sentence
                                  child: 
                                    (DBracket
                                      expr: 
                                        (BoolBinary
                                          op_id: BoolBinary_GlobDEqual
                                          left: {($ VSub_Name "$basename")}
                                          right: {(SQ <"\\$cwd">)}
                                        )
                                    )
                                  terminator: <Op_Semi ";">
                                )
                              ]
                              action: [
                                (Assignment
                                  keyword: Assign_None
                                  pairs: [
                                    (assign_pair
                                      lhs: (LhsName name:basename)
                                      op: Equal
                                      rhs: 
                                        {
                                          (CommandSubPart
                                            command_list: (CommandList children:[(C {(pwd)})])
                                            left_token: <Left_CommandSub "$(">
                                            spids: [1053 1055]
                                          )
                                        }
                                      spids: [1052]
                                    )
                                  ]
                                  spids: [1052]
                                )
                              ]
                              spids: [1033 1049]
                            )
                          ]
                          spids: [-1 1058]
                        )
                        (Assignment
                          keyword: Assign_None
                          pairs: [
                            (assign_pair
                              lhs: (LhsName name:try_find_file)
                              op: Equal
                              rhs: {(DQ ($ VSub_Name "$basename") (/) ($ VSub_Name "$find_file"))}
                              spids: [1061]
                            )
                          ]
                          spids: [1061]
                        )
                        (If
                          arms: [
                            (if_arm
                              cond: [
                                (Sentence
                                  child: 
                                    (DBracket
                                      expr: 
                                        (BoolUnary
                                          op_id: BoolUnary_f
                                          child: {(DQ ($ VSub_Name "$try_find_file"))}
                                        )
                                    )
                                  terminator: <Op_Semi ";">
                                )
                              ]
                              action: [
                                (C {(echo)} {(DQ ($ VSub_Name "$try_find_file"))})
                                (ControlFlow
                                  token: <ControlFlow_Return return>
                                  arg_word: {(0)}
                                )
                              ]
                              spids: [-1 1083]
                            )
                          ]
                          spids: [-1 1098]
                        )
                      ]
                      spids: [994 1101]
                    )
                )
              ]
              spids: [941 1104]
            )
            (C {(echo)} {(SQ )})
            (ControlFlow token:<ControlFlow_Return return> arg_word:{(1)})
          ]
          spids: [692]
        )
      spids: [688 691]
    )
    (FuncDef
      name: _Dbg_readin
      body: 
        (BraceGroup
          children: [
            (C {(typeset)} {(filename)})
            (If
              arms: [
                (if_arm
                  cond: [
                    (Sentence
                      child: 
                        (DParen
                          child: 
                            (ArithBinary
                              op_id: Arith_NEqual
                              left: (ArithWord w:{($ VSub_Pound "$#")})
                              right: (ArithWord w:{(Lit_Digits 0)})
                            )
                        )
                      terminator: <Op_Semi ";">
                    )
                  ]
                  action: [
                    (Assignment
                      keyword: Assign_None
                      pairs: [
                        (assign_pair
                          lhs: (LhsName name:filename)
                          op: Equal
                          rhs: {(DQ ($ VSub_Number "$1"))}
                          spids: [1163]
                        )
                      ]
                      spids: [1163]
                    )
                  ]
                  spids: [-1 1160]
                )
              ]
              else_action: [
                (C {(_Dbg_frame_file)})
                (Assignment
                  keyword: Assign_None
                  pairs: [
                    (assign_pair
                      lhs: (LhsName name:filename)
                      op: Equal
                      rhs: {(DQ ($ VSub_Name "$_Dbg_frame_filename"))}
                      spids: [1175]
                    )
                  ]
                  spids: [1175]
                )
              ]
              spids: [1169 1181]
            )
            (C {(typeset)} {(-i)} {(Lit_VarLike "line_count=") (0)})
            (Sentence child:(C {(typeset)} {(-i)} {(next)}) terminator:<Op_Semi ";">)
            (Assignment
              keyword: Assign_None
              pairs: [
                (assign_pair
                  lhs: (LhsName name:next)
                  op: Equal
                  rhs: 
                    {
                      (BracedVarSub
                        token: <VSub_Name _Dbg_filenames>
                        prefix_op: VSub_Pound
                        bracket_op: (WholeArray op_id:Lit_At)
                        spids: [1203 1209]
                      )
                    }
                  spids: [1202]
                )
              ]
              spids: [1202]
            )
            (Assignment
              keyword: Assign_None
              pairs: [
                (assign_pair
                  lhs: (LhsName name:_Dbg_source_array_var)
                  op: Equal
                  rhs: {(DQ (_Dbg_source_) (${ VSub_Name next))}
                  spids: [1212]
                )
              ]
              spids: [1212]
            )
            (If
              arms: [
                (if_arm
                  cond: [
                    (Sentence
                      child: 
                        (DBracket
                          expr: 
                            (BoolUnary
                              op_id: BoolUnary_n
                              child: {($ VSub_Name "$_Dbg_set_highlight")}
                            )
                        )
                      terminator: <Op_Semi ";">
                    )
                  ]
                  action: [
                    (Assignment
                      keyword: Assign_None
                      pairs: [
                        (assign_pair
                          lhs: (LhsName name:_Dbg_highlight_array_var)
                          op: Equal
                          rhs: {(DQ (_Dbg_highlight_) (${ VSub_Name next))}
                          spids: [1236]
                        )
                      ]
                      spids: [1236]
                    )
                  ]
                  spids: [-1 1233]
                )
              ]
              spids: [-1 1245]
            )
            (C {(typeset)} {(filevar)})
            (C {(typeset)} {(source_array)})
            (C {(typeset)} {(-ri)} {(Lit_VarLike "NOT_SMALLFILE=") (1000)})
            (If
              arms: [
                (if_arm
                  cond: [
                    (Sentence
                      child: 
                        (AndOr
                          children: [
                            (DBracket
                              expr: (BoolUnary op_id:BoolUnary_z child:{($ VSub_Name "$filename")})
                            )
                            (DBracket
                              expr: 
                                (BoolBinary
                                  op_id: BoolBinary_GlobDEqual
                                  left: {($ VSub_Name "$filename")}
                                  right: {(DQ ($ VSub_Name "$_Dbg_bogus_file"))}
                                )
                            )
                          ]
                          op_id: Op_DPipe
                        )
                      terminator: <Op_Semi ";">
                    )
                  ]
                  action: [
                    (C {(eval)} 
                      {
                        (DQ (${ VSub_Name _Dbg_source_array_var) ("[0]=") 
                          (EscapedLiteralPart
                            token: <Lit_EscapedChar "\\\"">
                          ) ($ VSub_Name "$Dbg_EXECUTION_STRING") (EscapedLiteralPart token:<Lit_EscapedChar "\\\"">)
                        )
                      }
                    )
                  ]
                  spids: [-1 1294]
                )
              ]
              else_action: [
                (Assignment
                  keyword: Assign_None
                  pairs: [
                    (assign_pair
                      lhs: (LhsName name:fullname)
                      op: Equal
                      rhs: 
                        {
                          (CommandSubPart
                            command_list: 
                              (CommandList
                                children: [
                                  (C {(_Dbg_resolve_expand_filename)} {(DQ ($ VSub_Name "$filename"))})
                                ]
                              )
                            left_token: <Left_CommandSub "$(">
                            spids: [1314 1320]
                          )
                        }
                      spids: [1313]
                    )
                  ]
                  spids: [1313]
                )
                (If
                  arms: [
                    (if_arm
                      cond: [
                        (Sentence
                          child: 
                            (DBracket
                              expr: (BoolUnary op_id:BoolUnary_r child:{($ VSub_Name "$fullname")})
                            )
                          terminator: <Op_Semi ";">
                        )
                      ]
                      action: [
                        (C {(typeset)} {(-r)} 
                          {(Lit_VarLike "progress_prefix=") 
                            (DQ ("Reading ") ($ VSub_Name "$filename"))
                          }
                        )
                        (C 
                          {(_Dbg_file2canonic) (Lit_Other "[") ($ VSub_Name "$filename") 
                            (Lit_Other "]") (Lit_Other "=") (DQ ($ VSub_Name "$fullname"))
                          }
                        )
                        (C 
                          {(_Dbg_file2canonic) (Lit_Other "[") ($ VSub_Name "$fullname") 
                            (Lit_Other "]") (Lit_Other "=") (DQ ($ VSub_Name "$fullname"))
                          }
                        )
                        (C {(typeset)} {(-ri)} {(Lit_VarLike "BIGFILE=") (30000)})
                        (If
                          arms: [
                            (if_arm
                              cond: [
                                (Sentence
                                  child: 
                                    (SimpleCommand
                                      words: [{(wc)} {(-l)}]
                                      redirects: [
                                        (Redir
                                          op_id: Redir_Less
                                          fd: -1
                                          arg_word: {(/dev/null)}
                                          spids: [1387]
                                        )
                                        (Redir
                                          op_id: Redir_Great
                                          fd: -1
                                          arg_word: {(/dev/null)}
                                          spids: [1391]
                                        )
                                        (Redir
                                          op_id: Redir_GreatAnd
                                          fd: 2
                                          arg_word: {(1)}
                                          spids: [1394]
                                        )
                                      ]
                                    )
                                  terminator: <Op_Semi ";">
                                )
                              ]
                              action: [
                                (Assignment
                                  keyword: Assign_None
                                  pairs: [
                                    (assign_pair
                                      lhs: (LhsName name:line_count)
                                      op: Equal
                                      rhs: 
                                        {
                                          (CommandSubPart
                                            command_list: 
                                              (CommandList
                                                children: [
                                                  (SimpleCommand
                                                    words: [{(wc)} {(-l)}]
                                                    redirects: [
                                                      (Redir
                                                        op_id: Redir_Less
                                                        fd: -1
                                                        arg_word: {(DQ (${ VSub_Name fullname))}
                                                        spids: [1408]
                                                      )
                                                    ]
                                                  )
                                                ]
                                              )
                                            left_token: <Left_CommandSub "$(">
                                            spids: [1403 1415]
                                          )
                                        }
                                      spids: [1402]
                                    )
                                  ]
                                  spids: [1402]
                                )
                                (If
                                  arms: [
                                    (if_arm
                                      cond: [
                                        (Sentence
                                          child: 
                                            (DParen
                                              child: 
                                                (ArithBinary
                                                  op_id: Arith_GreatEqual
                                                  left: (ArithVarRef name:line_count)
                                                  right: (ArithVarRef name:NOT_SMALLFILE)
                                                )
                                            )
                                          terminator: <Op_Semi ";">
                                        )
                                      ]
                                      action: [
                                        (C {(_Dbg_msg_nocr)} {(DQ (${ VSub_Name progress_prefix) (" "))})
                                      ]
                                      spids: [-1 1433]
                                    )
                                  ]
                                  spids: [-1 1446]
                                )
                              ]
                              spids: [-1 1399]
                            )
                          ]
                          spids: [-1 1449]
                        )
                        (SimpleCommand
                          words: [
                            {(builtin)}
                            {(readarray)}
                            {(-t)}
                            {(-O)}
                            {(1)}
                            {(-c)}
                            {($ VSub_Name "$BIGFILE")}
                            {(-C)}
                            {
                              (DQ ("_Dbg_progess_show ") 
                                (EscapedLiteralPart
                                  token: <Lit_EscapedChar "\\\"">
                                ) (${ VSub_Name progress_prefix) (EscapedLiteralPart token:<Lit_EscapedChar "\\\"">) (" ") 
                                (${ VSub_Name line_count)
                              )
                            }
                            {($ VSub_Name "$_Dbg_source_array_var")}
                          ]
                          redirects: [
                            (Redir
                              op_id: Redir_Less
                              fd: -1
                              arg_word: {(DQ ($ VSub_Name "$fullname"))}
                              spids: [1487]
                            )
                          ]
                        )
                        (If
                          arms: [
                            (if_arm
                              cond: [
                                (Sentence
                                  child: 
                                    (DBracket
                                      expr: 
                                        (BoolUnary
                                          op_id: BoolUnary_n
                                          child: {($ VSub_Name "$_Dbg_set_highlight")}
                                        )
                                    )
                                  terminator: <Op_Semi ";">
                                )
                              ]
                              action: [
                                (Assignment
                                  keyword: Assign_None
                                  pairs: [
                                    (assign_pair
                                      lhs: (LhsName name:opts)
                                      op: Equal
                                      rhs: {(DQ ("--bg=") (${ VSub_Name _Dbg_set_highlight))}
                                      spids: [1509]
                                    )
                                  ]
                                  spids: [1509]
                                )
                                (If
                                  arms: [
                                    (if_arm
                                      cond: [
                                        (Sentence
                                          child: 
                                            (DBracket
                                              expr: 
                                                (BoolUnary
                                                  op_id: BoolUnary_n
                                                  child: {($ VSub_Name "$_Dbg_set_style")}
                                                )
                                            )
                                          terminator: <Op_Semi ";">
                                        )
                                      ]
                                      action: [
                                        (Assignment
                                          keyword: Assign_None
                                          pairs: [
                                            (assign_pair
                                              lhs: (LhsName name:opts)
                                              op: Equal
                                              rhs: {(DQ ("--style=") (${ VSub_Name _Dbg_set_style))}
                                              spids: [1533]
                                            )
                                          ]
                                          spids: [1533]
                                        )
                                      ]
                                      spids: [-1 1530]
                                    )
                                  ]
                                  spids: [-1 1542]
                                )
                                (Assignment
                                  keyword: Assign_None
                                  pairs: [
                                    (assign_pair
                                      lhs: (LhsName name:highlight_cmd)
                                      op: Equal
                                      rhs: 
                                        {
                                          (DQ (${ VSub_Name _Dbg_libdir) ("/lib/term-highlight.py ") 
                                            ($ VSub_Name "$opts") (" ") ($ VSub_Name "$fullname")
                                          )
                                        }
                                      spids: [1545]
                                    )
                                  ]
                                  spids: [1545]
                                )
                                (Assignment
                                  keyword: Assign_None
                                  pairs: [
                                    (assign_pair
                                      lhs: (LhsName name:tempfile)
                                      op: Equal
                                      rhs: 
                                        {
                                          (CommandSubPart
                                            command_list: 
                                              (CommandList
                                                children: [
                                                  (SimpleCommand
                                                    words: [{($ VSub_Name "$highlight_cmd")}]
                                                    redirects: [
                                                      (Redir
                                                        op_id: Redir_Great
                                                        fd: 2
                                                        arg_word: {(/dev/null)}
                                                        spids: [1561]
                                                      )
                                                    ]
                                                  )
                                                ]
                                              )
                                            left_token: <Left_CommandSub "$(">
                                            spids: [1558 1563]
                                          )
                                        }
                                      spids: [1557]
                                    )
                                  ]
                                  spids: [1557]
                                )
                                (If
                                  arms: [
                                    (if_arm
                                      cond: [
                                        (Sentence
                                          child: 
                                            (DParen
                                              child: 
                                                (ArithBinary
                                                  op_id: Arith_DEqual
                                                  left: (ArithWord w:{(Lit_Digits 0)})
                                                  right: (ArithWord w:{($ VSub_QMark "$?")})
                                                )
                                            )
                                          terminator: <Op_Semi ";">
                                        )
                                      ]
                                      action: [
                                        (SimpleCommand
                                          words: [
                                            {(builtin)}
                                            {(readarray)}
                                            {(-t)}
                                            {(-O)}
                                            {(1)}
                                            {(-c)}
                                            {($ VSub_Name "$BIGFILE")}
                                            {(-C)}
                                            {
                                              (DQ ("_Dbg_progess_show ") 
                                                (EscapedLiteralPart
                                                  token: <Lit_EscapedChar "\\\"">
                                                ) (${ VSub_Name progress_prefix) (EscapedLiteralPart token:<Lit_EscapedChar "\\\"">) (" ") 
                                                (${ VSub_Name line_count)
                                              )
                                            }
                                            {($ VSub_Name "$_Dbg_highlight_array_var")}
                                          ]
                                          redirects: [
                                            (Redir
                                              op_id: Redir_Less
                                              fd: -1
                                              arg_word: {(DQ ($ VSub_Name "$tempfile"))}
                                              spids: [1619]
                                            )
                                          ]
                                        )
                                      ]
                                      spids: [-1 1581]
                                    )
                                  ]
                                  spids: [-1 1626]
                                )
                                (AndOr
                                  children: [
                                    (DBracket
                                      expr: 
                                        (BoolUnary
                                          op_id: BoolUnary_r
                                          child: {($ VSub_Name "$tempfile")}
                                        )
                                    )
                                    (C {(rm)} {($ VSub_Name "$tempfile")})
                                  ]
                                  op_id: Op_DAmp
                                )
                              ]
                              spids: [-1 1506]
                            )
                          ]
                          spids: [-1 1644]
                        )
                        (AndOr
                          children: [
                            (DParen
                              child: 
                                (ArithBinary
                                  op_id: Arith_Great
                                  left: (ArithVarRef name:line_count)
                                  right: (ArithVarRef name:BIGFILE)
                                )
                            )
                            (C {(_Dbg_progess_done)})
                          ]
                          op_id: Op_DAmp
                        )
                      ]
                      spids: [-1 1335]
                    )
                  ]
                  else_action: [(ControlFlow token:<ControlFlow_Return return> arg_word:{(1)})]
                  spids: [1662 1670]
                )
              ]
              spids: [1310 1673]
            )
            (C {(typeset)} {(-r)} 
              {(Lit_VarLike "line_count_cmd=") 
                (DQ ("line_count=") (EscapedLiteralPart token:<Lit_EscapedChar "\\$">) ("{#") 
                  (BracedVarSub
                    token: <VSub_Name _Dbg_source_array_var>
                    bracket_op: (WholeArray op_id:Lit_At)
                    spids: [1686 1691]
                  ) ("}")
                )
              }
            )
            (C {(eval)} {($ VSub_Name "$line_count_cmd")})
            (AndOr
              children: [
                (DParen
                  child: 
                    (ArithBinary
                      op_id: Arith_GreatEqual
                      left: (ArithVarRef name:line_count)
                      right: (ArithVarRef name:NOT_SMALLFILE)
                    )
                )
                (C {(_Dbg_msg)} {(DQ (done.))})
              ]
              op_id: Op_DAmp
            )
            (Sentence
              child: 
                (C 
                  {(_Dbg_filenames) (Lit_Other "[") ($ VSub_Name "$fullname") (Lit_Other "]") 
                    (Lit_Other "=") ($ VSub_Name "$_Dbg_source_array_var")
                  }
                )
              terminator: <Op_Semi ";">
            )
            (ControlFlow token:<ControlFlow_Return return> arg_word:{(0)})
          ]
          spids: [1139]
        )
      spids: [1135 1138]
    )
    (FuncDef
      name: _Dbg_readin_if_new
      body: 
        (BraceGroup
          children: [
            (AndOr
              children: [
                (DParen
                  child: 
                    (ArithBinary
                      op_id: Arith_NEqual
                      left: (ArithWord w:{($ VSub_Pound "$#")})
                      right: (ArithWord w:{(Lit_Digits 1)})
                    )
                )
                (ControlFlow token:<ControlFlow_Return return> arg_word:{(1)})
              ]
              op_id: Op_DAmp
            )
            (C {(typeset)} {(Lit_VarLike "filename=") (DQ ($ VSub_Number "$1"))})
            (C {(_Dbg_set_source_array_var)} {(DQ ($ VSub_Name "$filename"))})
            (If
              arms: [
                (if_arm
                  cond: [
                    (Sentence
                      child: 
                        (DBracket
                          expr: (BoolUnary op_id:BoolUnary_z child:{(DQ ($ VSub_Name "$fullname"))})
                        )
                      terminator: <Op_Semi ";">
                    )
                  ]
                  action: [
                    (C {(_Dbg_readin)} {(DQ ($ VSub_Name "$filename"))})
                    (C {(typeset)} {(Lit_VarLike "rc=") ($ VSub_QMark "$?")})
                    (C {(set)} {(Lit_Other "+") (xv)})
                    (AndOr
                      children: [
                        (DParen
                          child: 
                            (ArithBinary
                              op_id: Arith_NEqual
                              left: (ArithWord w:{($ VSub_QMark "$?")})
                              right: (ArithWord w:{(Lit_Digits 0)})
                            )
                        )
                        (ControlFlow
                          token: <ControlFlow_Return return>
                          arg_word: {($ VSub_Name "$rc")}
                        )
                      ]
                      op_id: Op_DAmp
                    )
                    (AndOr
                      children: [
                        (DBracket
                          expr: (BoolUnary op_id:BoolUnary_z child:{($ VSub_Name "$fullname")})
                        )
                        (ControlFlow
                          token: <ControlFlow_Return return>
                          arg_word: {(1)}
                        )
                      ]
                      op_id: Op_DAmp
                    )
                    (AndOr
                      children: [
                        (C {(_Dbg_set_source_array_var)} {(DQ ($ VSub_Name "$filename"))})
                        (ControlFlow
                          token: <ControlFlow_Return return>
                          arg_word: {($ VSub_QMark "$?")}
                        )
                      ]
                      op_id: Op_DPipe
                    )
                  ]
                  spids: [-1 1803]
                )
              ]
              spids: [-1 1871]
            )
            (ControlFlow token:<ControlFlow_Return return> arg_word:{(0)})
          ]
          spids: [1753]
        )
      spids: [1749 1752]
    )
    (FuncDef
      name: _Dbg_set_source_array_var
      body: 
        (BraceGroup
          children: [
            (AndOr
              children: [
                (DParen
                  child: 
                    (ArithBinary
                      op_id: Arith_NEqual
                      left: (ArithWord w:{($ VSub_Pound "$#")})
                      right: (ArithWord w:{(Lit_Digits 1)})
                    )
                )
                (ControlFlow token:<ControlFlow_Return return> arg_word:{(1)})
              ]
              op_id: Op_DAmp
            )
            (C {(typeset)} {(Lit_VarLike "filename=") (DQ ($ VSub_Number "$1"))})
            (AndOr
              children: [
                (DBracket
                  expr: (BoolUnary op_id:BoolUnary_z child:{($ VSub_Name "$filename")})
                )
                (ControlFlow token:<ControlFlow_Return return> arg_word:{(2)})
              ]
              op_id: Op_DAmp
            )
            (Assignment
              keyword: Assign_None
              pairs: [
                (assign_pair
                  lhs: (LhsName name:fullname)
                  op: Equal
                  rhs: 
                    {
                      (BracedVarSub
                        token: <VSub_Name _Dbg_file2canonic>
                        bracket_op: (ArrayIndex expr:(ArithWord w:{($ VSub_Name "$filename")}))
                        spids: [1939 1944]
                      )
                    }
                  spids: [1938]
                )
              ]
              spids: [1938]
            )
            (AndOr
              children: [
                (DBracket
                  expr: (BoolUnary op_id:BoolUnary_z child:{($ VSub_Name "$fullname")})
                )
                (AndOr
                  children: [
                    (DBracket
                      expr: 
                        (BoolUnary
                          op_id: BoolUnary_n
                          child: 
                            {
                              (BracedVarSub
                                token: <VSub_Name _Dbg_filenames>
                                bracket_op: (ArrayIndex expr:(ArithWord w:{($ VSub_Name "$filename")}))
                                spids: [1961 1966]
                              )
                            }
                        )
                    )
                    (BraceGroup
                      children: [
                        (Assignment
                          keyword: Assign_None
                          pairs: [
                            (assign_pair
                              lhs: (LhsName name:fullname)
                              op: Equal
                              rhs: {(DQ ($ VSub_Name "$filename"))}
                              spids: [1975]
                            )
                          ]
                          spids: [1975]
                        )
                      ]
                      spids: [1972]
                    )
                  ]
                  op_id: Op_DAmp
                )
              ]
              op_id: Op_DAmp
            )
            (AndOr
              children: [
                (DBracket
                  expr: (BoolUnary op_id:BoolUnary_z child:{($ VSub_Name "$fullname")})
                )
                (ControlFlow token:<ControlFlow_Return return> arg_word:{(2)})
              ]
              op_id: Op_DAmp
            )
            (Assignment
              keyword: Assign_None
              pairs: [
                (assign_pair
                  lhs: (LhsName name:_Dbg_source_array_var)
                  op: Equal
                  rhs: 
                    {
                      (BracedVarSub
                        token: <VSub_Name _Dbg_filenames>
                        bracket_op: (ArrayIndex expr:(ArithWord w:{($ VSub_Name "$fullname")}))
                        spids: [2000 2005]
                      )
                    }
                  spids: [1999]
                )
              ]
              spids: [1999]
            )
            (If
              arms: [
                (if_arm
                  cond: [
                    (Sentence
                      child: 
                        (DBracket
                          expr: 
                            (BoolUnary
                              op_id: BoolUnary_n
                              child: {($ VSub_Name "$_Dbg_set_highlight")}
                            )
                        )
                      terminator: <Op_Semi ";">
                    )
                  ]
                  action: [
                    (Assignment
                      keyword: Assign_None
                      pairs: [
                        (assign_pair
                          lhs: (LhsName name:_Dbg_highlight_array_var)
                          op: Equal
                          rhs: 
                            {
                              (DQ 
                                (BracedVarSub
                                  token: <VSub_Name _Dbg_source_array_var>
                                  suffix_op: 
                                    (PatSub
                                      pat: {(_Dbg_source_)}
                                      replace: {(_Dbg_highlight_)}
                                      do_all: False
                                      do_prefix: False
                                      do_suffix: False
                                    )
                                  spids: [2025 2031]
                                )
                              )
                            }
                          spids: [2023]
                        )
                      ]
                      spids: [2023]
                    )
                  ]
                  spids: [-1 2020]
                )
              ]
              spids: [-1 2035]
            )
            (Assignment
              keyword: Assign_None
              pairs: [
                (assign_pair
                  lhs: (LhsName name:_Dbg_source_array_var)
                  op: Equal
                  rhs: 
                    {
                      (BracedVarSub
                        token: <VSub_Name _Dbg_filenames>
                        bracket_op: (ArrayIndex expr:(ArithWord w:{($ VSub_Name "$fullname")}))
                        spids: [2039 2044]
                      )
                    }
                  spids: [2038]
                )
              ]
              spids: [2038]
            )
            (AndOr
              children: [
                (DBracket
                  expr: (BoolUnary op_id:BoolUnary_z child:{($ VSub_Name "$_Dbg_source_array_var")})
                )
                (ControlFlow token:<ControlFlow_Return return> arg_word:{(2)})
              ]
              op_id: Op_DAmp
            )
            (ControlFlow token:<ControlFlow_Return return> arg_word:{(0)})
          ]
          spids: [1894]
        )
      spids: [1890 1893]
    )
  ]
)