initial matador ng commit

source/orm/sql/connection_info.cpp

@@ -0,0 +1,72 @@
+#include "matador/sql/connection_info.hpp"
+
+#include <regex>
+
+namespace matador::sql {
+
+connection_info connection_info::parse(const std::string &info, unsigned short default_port, const std::string &default_driver) {
+  static const std::regex DNS_RGX (R"((\w+):\/\/((([\w]+)(:([\w!]+))?)@)?((((([\w.\(\)\\]+)([:]([\d]+))?)?)\/)?(([\w.]+)( \((.*)\))?)))");
+
+  std::smatch what;
+
+  if (!std::regex_match(info, what, DNS_RGX)) {
+    throw std::logic_error("connect invalid dns: " + info);
+  }
+
+  connection_info ci{};
+  ci.type = what[1].str();
+  ci.user = what[4].str();
+  ci.password = what[6].str();
+
+  // get connection part
+  ci.hostname = what[11].str();
+  if (what[13].matched) {
+    char *end;
+    ci.port = static_cast<unsigned short>(std::strtoul(what[13].str().c_str(), &end, 10));
+  } else {
+    ci.port = default_port;
+  }
+
+  // Should we just ignore the "instance" part?
+  // const std::string instance = what[5].str();
+  ci.database = what[15].str();
+
+  if (what[17].matched) {
+    ci.driver = what[17].str();
+  } else {
+    ci.driver = default_driver;
+  }
+
+  return ci;
+}
+
+std::string connection_info::to_string(const connection_info &ci) {
+  std::string dns{ci.type};
+  dns += "://";
+
+  if (!ci.user.empty()) {
+    dns += ci.user;
+    if (!ci.password.empty()) {
+      dns += ":" + ci.password;
+    }
+  }
+
+  if (!ci.hostname.empty()) {
+    dns += "@" + ci.hostname;
+    if (ci.port > 0) {
+      dns += ":" + std::to_string(ci.port);
+    }
+  }
+
+  if (!dns.empty()) {
+    dns += "/";
+  }
+  dns += ci.database;
+
+  if (!ci.driver.empty()) {
+    dns += " (" + ci.driver +")";
+  }
+  return dns;
+}
+
+}