Regarding the tag format...
Sorry about the confusion. Everything in computers is represented by numbers. Text is no different so back when computers became more powerful some institute somewhere created the ASCII code system. This means that computers can map a number to each letter so that it can store text. In ASCII, the letter A is represented by the number 65 (if my memory serves me correctly), B by 66, C by 67 etc etc. There are loads of other numbers which which have no visible letter associated with them. My format uses these numbers to define the formatting. For example the ASCII code 2 does not point to any visible letter. Conversely the letter '2' is stored by ASCII code 50. This basically means that you can have any visible text in my format and there isn't clash with the formatting.
More details on ASCII here:
http://en.wikipedia.org/wiki/ASCII
Regards,
Connell