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ginter
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ginter
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(DEFUN PDEFINE FEXPR (A)
;;THIS PDEFINE MERELY PUT THE PROGRAMMAR FUNCTION ON THE
;;PROPERTY LIST OF THE PARSE NAME UNDER THE INDICATOR
;;'INTERPRET. IT ALSO ADDS THE TAGS FAIL AND RETURN. NOTE THAT
;;THE PDEFINE BODY IS SIMILIAR TO PROG BODY. THIS SETS UP
;;INTERPRETED PROGRAMMAR EXECUTIONS
(PUTPROP (CAR A)
(NCONC (CDR A)
(LIST 'FAIL
'(RETURN 'FAIL)
'RETURN
'(RETURN 'RETURN)))
'INTERPRET))
(DEFUN INTERPRET (UNIT)
;; INTERPRET IS THE FUNCTION WHICH 'CALLS' AN INTERPRETED
;;PROGRAMMAR PROGRAM. IT FIRST DECLARES AND INITIALIZES ALL
;;THE RELAVENT VARIABLES THEN IT EXECUTES THE PROGRAMMAR BODY
;;AS A PROG NOTE THE USE OF "RE". IT IS SET TO A NODE ONE
;;WISHES TO BE THE INITIAL DAUGHTER OF THIS NODE - ONLY CONJ
;;NEEDS THIS HACK
(PROG (FE H ME NB C SM CUT NN T1 T2 T3)
(SETQ NN T)
(SETQ CUT END)
(SETQ C (BUILDNODE (SETQ FE (REVERSE REST)) ;FEATURE LIST
(SETQ NB (OR (NB RE) N)) ;BEGINNING IN SENTENCE OF THIS NODE
N ;SENTENCE POINTER JUST AFTER THIS NODE
(SETQ H RE) ;DAUGHTERS OF THIS NODE
NIL)) ;SEMANTIC JAZZ
(SETR 'PARENT PARENT C) ;SET PARENT REGISTER
(COND ((EQ (APPLY 'PROG
(GET UNIT 'INTERPRET))
'RETURN)
(GO RETURN))) ;APPLY THE PROGRAMMAR PROGRAM
FAIL (SETQ MES ME)
(SETQ N (OR (N RE) NB)) ;RESET SENTENCE POINTER
(RETURN NIL)
RETURN
(SETQ MES ME)
(RETURN (REBUILD (REVERSE FE) NB N H SM C))))
(DEFUN : FEXPR (BRANCH)
(COND ((EVAL (CAR BRANCH)) ;EVALUATE BRANCH CONDITION
(COND ((AND (NULL NN) (CDDDR BRANCH))
(GOCHECK (CDDR BRANCH))) ;IF TRUE AND NO MORE SENTENCE REMAINS
(T (GOCHECK BRANCH)))) ;AND IF THIRD BRANCH GIVEN,THEN GO TO THIRD
(T (GOCHECK (CDR BRANCH))))) ;BRANCH 2ND BRANCH
(DEFUN GOCHECK (LABEL)
;;THE GOCHECK FUNCTION CHECKS THE BRANCHES OF THE PROGRAMMAR
;;CONDITIONAL IF THE BRANCH IS NIL, GOCHECK MERELY RETURNS IF
;;THE BRANCH IS NON-ATOMIC, IT IS TAKEN AS A FAILURE MESAGE
;;GOCHECK PUTS THE MESAGE ON THE MESSAGE LIST AND GOES TO
;;FAIL(IN GINTERP) IF THE BRANCH IS ATOMIC, GOCHECK GOES TO IT
;;REMEMBER THAT THE GO LEADS TO A POINT SOMEWHERE IN THE
;;PROGRAMMAR PROGRAM UNLESS IT IS 'FAIL OR 'RETURN
(COND ((NULL (CADR LABEL)) T)
((ATOM (CADR LABEL)) (GO (CADR LABEL)))
(T (M (CADR LABEL)) (GO FAIL))))
(DEFUN GOCOND FEXPR (A)
;;GOCOND GOES TO THE 1ST OR 2ND OF TWO TAGS DEPENDING IF THERE
;;REMAINS ANY MORE OF THE SENTENCE YET TO BE PARSED
(COND (NN (GO (CAR A))) (T (GO (CADR A)))))