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⟦f499ca2fd⟧ Ada Source

    Length: 6144 (0x1800)
    Types: Ada Source
    Notes: 03_class, FILE, R1k_Segment, e3_tag, package body Field_Parser, seg_027f58, seg_027f6e

Derivation

└─⟦8527c1e9b⟧ Bits:30000544 8mm tape, Rational 1000, Arrival backup of disks in PAM's R1000
    └─⟦cfc2e13cd⟧ »Space Info Vol 2« 
        └─⟦this⟧ 

with Text_Io;
with String_Utilities;

package body Field_Parser is

    package Su renames String_Utilities;

    function Delete_Escape (S : in String) return String is
        P : Integer := Su.Locate (Escape, S);
    begin
        if P in 1 .. S'Last - 1 then
            return S (S'First .. P - 1) & S (P + 1) &
                      Delete_Escape (S (P + 2 .. S'Last));
        else
            return S;
        end if;
    end Delete_Escape;


    procedure Open (Parameter : in String; Pos : out Integer) is
    begin
        -- Parameter := Delete_Escape (Parameter);
        Pos := Parameter'First;
    end Open;


    procedure Value (Parameter : in String;
                     Pos : in out Integer;
                     The_Value : out String;
                     Last : out Natural) is
        Field : String (1 .. Parameter'Length) := (others => ' ');
        Pos_Field : Integer := 1;
        At_End : Boolean := False;
    begin
        while not At_End and then Parameter (Pos) /= Separator loop
            if Parameter (Pos) = Escape then
                if not Done (Parameter, Pos) then
                    Pos := Pos + 1;
                end if;
            end if;
            Field (Pos_Field) := Parameter (Pos);
            if not Done (Parameter, Pos) then
                Pos := Pos + 1;
                Pos_Field := Pos_Field + 1;
            else
                At_End := True;
            end if;
        end loop;

        if Pos_Field - 1 = 0 then
            The_Value (1 .. 1) := " ";
            Last := 0;
        else
            if Done (Parameter, Pos) then
                The_Value (1 .. Pos_Field) := Field (1 .. Pos_Field);
                Last := Pos_Field;
            else
                The_Value (1 .. Pos_Field - 1) := Field (1 .. Pos_Field - 1);
                Last := Pos_Field - 1;
            end if;
        end if;
    end Value;


    procedure Next (Parameter : in String; Pos : in out Integer) is
    begin
        if not Done (Parameter, Pos) then
            Pos := Pos + 1;
        end if;
    end Next;


    function Done (Parameter : in String; Pos : in Integer) return Boolean is
    begin
        return Pos = Parameter'Last;
    end Done;


    function Is_Empty_Field (Last : in Natural) return Boolean is
    begin
        return Last = 0;
    end Is_Empty_Field;

end Field_Parser;

    nblk1=5
    nid=4
    hdr6=6
        [0x00] rec0=23 rec1=00 rec2=01 rec3=012
        [0x01] rec0=1f rec1=00 rec2=02 rec3=016
        [0x02] rec0=14 rec1=00 rec2=03 rec3=000
        [0x03] rec0=19 rec1=00 rec2=04 rec3=000
        [0x04] rec0=80 rec1=00 rec2=00 rec3=100
    tail 0x21722016283ad7605c0c9 0x42a00088462060003
Free Block Chain:
  0x4: 0000  00 05 00 07 80 04 20 20 20 20 04 05 20 20 20 05  ┆                ┆
  0x5: 0000  00 00 00 05 80 02 20 20 02 03 04 05 06 07 08 09  ┆                ┆