FUNCTION simplify_maths_space

(* SCHEMA step_merged_ap_schema; *)

-- DIFF IN AP238 STEP-NC
-- IN AP238 STEP-NC/AP242
FUNCTION simplify_maths_space
      (spc : maths_space ) : maths_space;
   LOCAL
      stypes : SET OF STRING := stripped_typeof(spc);
      sset : SET OF maths_value;
      zset : SET OF maths_value := [];
      zval : maths_value;
      zspc : maths_space;
      zallint : BOOLEAN := FALSE;
      zint : INTEGER;
      zmin : INTEGER;
      zmax : INTEGER;
      factors : LIST OF maths_space;
      zfactors : LIST OF maths_space := [];
      rspc : maths_space;
   END_LOCAL;
      IF 'FINITE_SPACE' IN stypes THEN
         sset := spc\finite_space.members;
         REPEAT i := 1 TO SIZEOF(sset);
            zval := simplify_maths_value(sset[i]);
            zset := zset + [ zval ];
            IF zallint AND ('INTEGER' IN TYPEOF(zval)) THEN
               zint := zval;
               IF i = 1 THEN
                  zmin := zint;
                  zmax := zint;
               ELSE
                  IF zint < zmin THEN
                     zmin := zint;
                  END_IF;
                  IF zint > zmax THEN
                     zmax := zint;
                  END_IF;
               END_IF;
            ELSE
               zallint := FALSE;
            END_IF;
         END_REPEAT;
         IF zallint AND (SIZEOF(zset) = zmax - zmin + 1) THEN
            RETURN (make_finite_integer_interval(zmin, zmax));
         END_IF;
         RETURN (make_finite_space(zset));
      END_IF;
      IF 'UNIFORM_PRODUCT_SPACE' IN stypes THEN
         zspc := simplify_maths_space(spc\uniform_product_space.base);
         RETURN (make_uniform_product_space(zspc, spc\uniform_product_space.exponent));
      END_IF;
      IF 'LISTED_PRODUCT_SPACE' IN stypes THEN
         factors := spc\listed_product_space.factors;
         REPEAT i := 1 TO SIZEOF(factors);
            INSERT( zfactors, simplify_maths_space(factors[i]), i - 1 );
         END_REPEAT;
         RETURN (make_listed_product_space(zfactors));
      END_IF;
      IF 'EXTENDED_TUPLE_SPACE' IN stypes THEN
         zspc := simplify_maths_space(spc\extended_tuple_space.base);
         rspc := simplify_maths_space(spc\extended_tuple_space.extender);
         RETURN (make_extended_tuple_space(zspc, rspc));
      END_IF;
      IF 'FUNCTION_SPACE' IN stypes THEN
         zspc := simplify_maths_space(spc\function_space.domain_argument);
         rspc := simplify_maths_space(spc\function_space.range_argument);
         RETURN (make_function_space(spc\function_space.domain_constraint, zspc, spc\function_space.range_constraint, rspc));
      END_IF;
      RETURN (spc);
END_FUNCTION;

Referenced By

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2020-07-28T17:02:20-04:00