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It occurred to me today that self modifying code is easily done in PPL. Save the following program as HiBye and run it a few times from Home.

Code:

EXPORT HiBye()

BEGIN

 LOCAL source;

 source:=Programs("HiBye");

 IF INSTRING(source,"He"+"llo") THEN

  source:=REPLACE(source,"He"+"llo","Good"+"bye");

 ELSE

  source:=REPLACE(source,"Good"+"bye","He"+"llo");

 END;

 Programs("HiBye"):=source;

 RETURN "Hello";

END;

hee hee.

Editing programs with Programs("name") is wonderful until you hit the limit of 65,535 characters for the string type.

With Programs():=string, is the program compiled at save time or upon first run time?

Programs():=string compiles during execution, that is why you can even abort the execution if you find a difference relevant to the previous code. This instruction it returns 1 if compiled correctly and 0 if there are syntax errors.

Wes Loewer

Carlos295pz

Wes Loewer

Carlos295pz