Defines a number of tokens used for parsing XML. Not for general consumption.

Constants
NCNAME_STR = '[\w:][\-\w.]*'
 
NAME_STR = "(?:#{NCNAME_STR}:)?#{NCNAME_STR}"
 
NAMECHAR = '[\-\w\.:]'
 
NAME = "([\\w:]#{NAMECHAR}*)"
 
NMTOKEN = "(?:#{NAMECHAR})+"
 
NMTOKENS = "#{NMTOKEN}(\\s+#{NMTOKEN})*"
 
REFERENCE = "(?:&#{NAME};|&#\\d+;|&#x[0-9a-fA-F]+;)"