Maybe we have to clarify more.. should we have stuff like:

is_integer: integer numbers in decimal, octal or hexadecimal format
is_hex: hexadecimal format of integers
is_octal: octal format of integers

so and to know if it is an integer but in the "normal" decimal format I have to do:

```puppet
if is_integer($x) and ! (is_hex($x) or is_octal($x))
```
?