IsUserAllowed checks that the given user is numeric and is contained by the given RangeList.

NewRange creates a new range with lower and upper bound.

NewRangeFrom creates a new range with only the lower bound.

NewRangeTo creates a new range with only the upper bound.

ParseRange creates a Range from a given string.

ParseRangeList parses a string that contains a comma-separated list of ranges.

Range errors.

ErrParseRange is an error encountered while parsing a Range.

Range represents a range of user ids.

RangeList is a list of user ranges.