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XQuery Regular Expressions

A list of regular expression functions provided by XQuery:

Index	Name	Description
1)	matches($input, $regex)	It returns true if the input matches with the provided regular expression.
2)	replace($input, $regex, $string)	It is used to replace the matched input string with given string.
3)	tokenize($input, $regex)	It is used to return a sequence of items matching the regular expression.