DataMuseum.dk

Presents historical artifacts from the history of:

Rational R1000/400

This is an automatic "excavation" of a thematic subset of
artifacts from Datamuseum.dk's BitArchive.

See our Wiki for more about Rational R1000/400

Excavated with: AutoArchaeologist - Free & Open Source Software. 

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⟦143934c9e⟧ Ada Source

    Length: 2048 (0x800)
    Types: Ada Source
    Notes: 03_class, FILE, R1k_Segment, e3_tag, package Expression, seg_036393

Derivation

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

E3 Source Code



-- This package parses and interprets the following rules
--
-- rule 0:
--  syntax:     expression ::= pour identifier prendre value
--  semantic:   expression.result =  object.reference;
--              object.reference = value.result
--
--
-- rule 1:
--  syntax:     expression ::= value
--  semantic:   expression.result = value.result;

with Scanner, Object;
package Expression is

    type Node is private;
    Empty_Node : constant Node;

    procedure Parse (N : in out Node);
    procedure Unparse (N : in Node);
    function Is_First (T : Scanner.Token) return Boolean;
    function Interpret (N : Node) return Object.Reference;

private
    type Node_Structure;
    type Node is access Node_Structure;
    Empty_Node : constant Node := null;
end Expression;

E3 Meta Data

    nblk1=1
    nid=0
    hdr6=2
        [0x00] rec0=20 rec1=00 rec2=01 rec3=000
    tail 0x217305cc684d388038c14 0x42a00088462060003