bool search::index_files(const std::string &filter) {
std::ifstream pbo_stream;
std::regex txt_regex(filter);
if (_active_pbo_list.size() < 1)
return false;
for (auto & pbo_file_path : _active_pbo_list) {
pbo_stream.open(pbo_file_path, std::ios::binary | std::ios::in);
if (!pbo_stream.good()) {
LOG(ERROR) << "Cannot open file - " << pbo_file_path;
continue;
}
ace::pbo::archive _archive(pbo_stream);
for (ace::pbo::entry_p & entry : _archive.entries) {
if (entry->filename != "") {
if (std::regex_match(entry->filename, txt_regex)) {
std::string full_virtual_path = _archive.info->data + "\\" + entry->filename;
std::transform(full_virtual_path.begin(), full_virtual_path.end(), full_virtual_path.begin(), ::tolower);
_file_pbo_index[full_virtual_path] = pbo_file_path;
//LOG(DEBUG) << full_virtual_path << " = " << pbo_file_path;
}
}
}
pbo_stream.close();
}
LOG(INFO) << "PBO Index complete";
return true;
}
int main()
{
// Simple regular expression matching
std::string fnames[] = {"foo.txt", "bar.txt", "baz.dat", "zoidberg"};
std::regex txt_regex("[a-z]+\\.txt");
for (const auto &fname : fnames) {
std::cout << fname << ": "
<< std::regex_match(fname, txt_regex) << '\n';
}
// Extraction of a sub-match
std::regex base_regex("([a-z]+)\\.txt");
std::smatch base_match;
for (const auto &fname : fnames) {
if (std::regex_match(fname, base_match, base_regex)) {
// The first sub_match is the whole string; the next
// sub_match is the first parenthesized expression.
if (base_match.size() == 2) {
std::ssub_match base_sub_match = base_match[1];
std::string base = base_sub_match.str();
std::cout << fname << " has a base of " << base << '\n';
}
}
}
// Extraction of several sub-matches
std::regex pieces_regex("([a-z]+)\\.([a-z]+)");
std::smatch pieces_match;
for (const auto &fname : fnames) {
if (std::regex_match(fname, pieces_match, pieces_regex)) {
std::cout << fname << '\n';
for (size_t i = 0; i < pieces_match.size(); ++i) {
std::ssub_match sub_match = pieces_match[i];
std::string piece = sub_match.str();
std::cout << " submatch " << i << ": " << piece << '\n';
}
}
}
}
