Pre-Table – Expression Return Data Type

The data type table entry member was originally used for both the next expected token data type for a command and the return data type for operators and functions.  The next expected data type was used with the now replaced token centric translator.  Since the translator is now command centric, a next expected data type for commands is not needed.  Since the return data type is expression related, it was moved into the Expression Info structure.

The preset expression info structure instances were updated to include a return data type.  The table entries were updated where the data type initialization value was removed and the expression info structure pointer name updated or the return data type value added to the expression structure constructor call.

For the REPEAT$ function entry, the same preset expression info structure instance that is also used by several assign operators could not be used since the REPEAT$ function required a different expected data type.

The data type access function was replaced with a return data type function that checks if the expression info structure is present before attempting to access the return data type member.  If the structure is not present, the None data type is returned.

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