| Expression |
&
(?ni:\# # if a pound sign follow ampsand look for number
((x # if x follow pound sign accept hex value up to 5 digits
([\dA-F]){1,5}
)
| # otherwise accept decimal number between 0 - 1048575
(104857[0-5]
|10485[0-6]\d
|1048[0-4]\d\d
|104[0-7]\d{3}
|10[0-3]\d{4}
|0?\d{1,6})
)
| # no pound sign after ampersand
([A-Za-z\d.]{2,31}) #accept ASCII alphanumeric and period
); #end with semi-colon. |
