((id "errno")
 (description "C/Unix errno numbers on current machine")
 (examples "EPERM ENOENT ESRCH"))

((id "http")
 (description "Hypertext Transfer Protocol response status codes")
 (examples "ok not-found forbidden"))

((id "irc")
 (description "Internet Relay Chat protocol numeric replies")
 (examples "RPL_AWAY RPL_LIST RPL_TOPIC"))

((id "port")
 (description "TCP/UDP port number to service mapping")
 (examples "echo daytime ftp ssh"))

((id "signal")
 (description "C/Unix signal numbers on current machine")
 (examples "SIGHUP SIGINT SIGQUIT"))

((id "sqlite")
 (description "SQLite C library result codes")
 (examples "SQLITE_OK SQLITE_ERROR"))

((id "windows")
 (description "Windows API GetLastError() codes")
 (examples "ERROR_SUCCESS ERROR_FILE_NOT_FOUND"))

((id "winsock")
 (description "Windows Sockets API codes")
 (examples "WSA_INVALID_HANDLE WSAEWOULDBLOCK"))