Pre-Table – Multiple Member

The multiple table entry member identified codes that either could be the first word of a two-word command (for example INPUT), was a two-word command (INPUT PROMPT), could be the first character of a two-character operator (<), or was a two-character operator (<=).  Having an entire member for just this was unnecessary since a flag could be used for this purpose.  In addition, it was not necessary to identify two-character operators.

Therefore, the multiple table entry member was replaced with a new Two table flag (a Multiple table flag already existed) and its access function removed.  The Multiple enumeration contained separate enumerators for both characters and words, though were assigned to the same value and even contained enumerators for three characters or words, even though there were no codes that used these.  This enumeration was removed.

Some changes were made to the Table Flag enumeration, including assigning it an underlying type of an unsigned integer (32 bits).  Instead of assigning the enumerators to hard to read hexadecimal constants, they were assigned values using the shift operator where an unsigned one value is shifted by a unique number of bits.  The shift operation is calculated during compilation.  The Null table flag enumerator was removed; the default table flag value (TableFlag{}) is used instead.  The flag table entry member type was also changed to an unsigned integer.  The has flag access functions were changed to return a boolean value.

The parser get identifier and get operator routines were updated to use the has flag access function with the Two flag instead of using the multiple access function.  In the table header file, there were a few remaining previously missed uses of a Qt type (quint16) on function pointer definitions that were replaced with the standard equivalent type (uint16_t).

[branch table commit 2f5edfc30e]