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External Data Source

Source

Regular 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.