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top - downloadIndex: ┃ T V ┃
Length: 797 (0x31d)
Types: TextFile
Names: »V«
└─⟦a7d1ea751⟧ Bits:30000550 8mm tape, Rational 1000, !users!projects 94_04_11
└─ ⟦129cab021⟧ »DATA«
└─⟦this⟧
-- This package parses and interprets the following rules
--
-- rule 0:
-- syntax: expression ::= pour identifier prendre value
-- semantic: result = value.result
-- symbol <| insert(identifier,result)
-- expression.result = 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;