+ // Include all Language codes we have a Translation file for in /var/lib/apt/lists
+ // so they will be all included in the Cache.
+ std::vector<string> builtin;
+ DIR *D = opendir(_config->FindDir("Dir::State::lists").c_str());
+ if (D != 0) {
+ builtin.push_back("none");
+ for (struct dirent *Ent = readdir(D); Ent != 0; Ent = readdir(D)) {
+ string const name = Ent->d_name;
+ size_t const foundDash = name.rfind("-");
+ size_t const foundUnderscore = name.rfind("_");
+ if (foundDash == string::npos || foundUnderscore == string::npos ||
+ foundDash <= foundUnderscore ||
+ name.substr(foundUnderscore+1, foundDash-(foundUnderscore+1)) != "Translation")
+ continue;
+ string const c = name.substr(foundDash+1);
+ if (unlikely(c.empty() == true) || c == "en")
+ continue;
+ // Skip unusual files, like backups or that alike
+ string::const_iterator s = c.begin();
+ for (;s != c.end(); ++s) {
+ if (isalpha(*s) == 0)
+ break;
+ }
+ if (s != c.end())
+ continue;
+ if (std::find(builtin.begin(), builtin.end(), c) != builtin.end())
+ continue;
+ builtin.push_back(c);
+ }
+ }
+