68     sregex rx = sregex::compile("\\$\\(([^\\)]+)\\)");  in test_main()  local
73     output = regex_replace(input, rx, format1());  in test_main()
79     output = regex_replace(input, rx, format2());  in test_main()
85     output = regex_replace(input, rx, format3());  in test_main()
91     output = regex_replace(input, rx, format_fun);  in test_main()
97     output = regex_replace(input, rx, &format_fun);  in test_main()
104     regex_replace(std::back_inserter(output), input.begin(), input.end(), rx, format1());  in test_main()
108     regex_replace(std::back_inserter(output), input.begin(), input.end(), rx, format2());  in test_main()
112     regex_replace(std::back_inserter(output), input.begin(), input.end(), rx, format2());  in test_main()
116     regex_replace(std::back_inserter(output), input.begin(), input.end(), rx, format_fun);  in test_main()
120     regex_replace(std::back_inserter(output), input.begin(), input.end(), rx, &format_fun);  in test_main()