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MOREPROG.MOD
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1987-02-08
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(* Chapter 7 - Program 2 *)
MODULE MoreProg; (* More program construction examples *)
FROM InOut IMPORT WriteString, WriteLn;
CONST MainC = 27;
TYPE MainT = ARRAY[3..7] OF CARDINAL;
VAR MainV : MainT;
PROCEDURE Proc1;
CONST Proc1C = 33;
TYPE Proc1T = ARRAY[-23..-15] OF CHAR;
VAR Proc1V : MainT;
Proc11 : Proc1T;
BEGIN
WriteString("Procedure 1");
WriteLn;
END Proc1;
PROCEDURE Proc2;
CONST Proc2C = 22;
TYPE Proc2T = ARRAY[3..5],[-4..0] OF BOOLEAN;
VAR Proc2V : MainT;
Proc21 : Proc2T;
PROCEDURE Proc3;
CONST Proc3C = -234;
TYPE Proc3T = ARRAY[12..13] OF MainT;
VAR Proc3V : MainT;
Proc31 : Proc2T;
Proc32 : Proc3T;
BEGIN
WriteString("Procedure 3");
WriteLn;
END Proc3;
PROCEDURE Proc4;
CONST Proc4C = 111;
TYPE Proc4T = CARDINAL;
VAR Proc4V : MainT;
Proc41 : Proc2T;
Proc42 : Proc4T;
PROCEDURE Proc5;
CONST Proc5C = "A";
TYPE Proc5T = ARRAY[22..222] OF CHAR;
VAR Proc5V : MainT;
Proc51 : Proc2T;
Proc52 : Proc4T;
Proc53 : Proc5T;
BEGIN
WriteString("Procedure 5");
WriteLn;
END Proc5;
BEGIN
WriteString("Procedure 4");
WriteLn;
Proc5;
Proc3;
END Proc4;
BEGIN
WriteString("Procedure 2");
WriteLn;
Proc3;
Proc4;
END Proc2;
BEGIN
WriteString("Main Program");
WriteLn;
Proc2;
Proc1;
END MoreProg.