MatchGroupCollection

Represents a collection of captured groups in a single match of a regular expression.

This collection has size of groupCount + 1 where groupCount is the count of groups in the regular expression. Groups are indexed from 1 to groupCount and group with the index 0 corresponds to the entire match.

An element of the collection at the particular index can be null, if the corresponding group in the regular expression is optional and there was no match captured by that group.