Function groupify

third_party/inputmask/inputmask.js:412–417

(matches)

                return maskToken;
            }
            function groupify(matches) {
                var groupToken = new MaskToken(true);
                groupToken.openGroup = false;
                groupToken.matches = matches;
                return groupToken;
            }
            if (regexMask) {
                opts.optionalmarker[0] = undefined;
                opts.optionalmarker[1] = undefined;