Integer type does not accept negative values

[bpj]

I noticed that the 'integer' type doesn't support negative values. Is this intentional? Perhaps two additional types 'negative_integer' and 'any_integer' to preserve backward compatibility?

FWIW in my private library of frequently used extra types I have

• int: positive or negative integer.
• pos_int: int * range(1, math.maxinteger) with an array_index alias
• non_pos_int int * range(math.mininteger, 0)
• neg_int'
• non_neg_int
• non_zero_int: int * -literal(0)
• pos_num etc.
• float, pos_float etc.

each with a \describe like "non-positive integer. Of course generated by looping over two sets of tables with parameters.