MatchInfo.getMatchCount

Retrieves the number of matched substrings (including substring 0, that is the whole matched text), so 1 is returned if the pattern has no substrings in it and 0 is returned if the match failed.

If the last match was obtained using the DFA algorithm, that is using [glib.regex.Regex.matchAll] or [glib.regex.Regex.matchAllFull], the retrieved count is not that of the number of capturing parentheses but that of the number of matched substrings.