Extract           340 pcre/pcrecpp_unittest.cc   CHECK(RE("(.*)@([^.]*)").Extract("\\2!\\1", "boris@kremvax.ru", &s));
Extract           344 pcre/pcrecpp_unittest.cc   CHECK(RE(".*").Extract("'\\0'", "foo", &s));
Extract           346 pcre/pcrecpp_unittest.cc   CHECK(!RE("bar").Extract("'\\0'", "baz", &s));
Extract           682 pcre/pcrecpp_unittest.cc   CHECK(re.Extract("\\1", str , &captured));
Extract           688 pcre/pcrecpp_unittest.cc   re.Extract("\\1",str, &captured );