 token "one" gives the sequence "one", "two", "three", ... , while "ONE" gives
the same in upper-case.</p>

<p>The default format is "1".</p>

<p>Actually, any sequence of ASCII digits in the format is treated in the same way: writing 999
 has the same effect as writing 001. A sequence of Unicode digits other than ASCII
digits (for exaple, Tibetan digits) can also be used, and will result in decimal numbering using those
digits.</p>

<p>Similarly, any other character classified as a letter can be 