#include "extract-addresses.hh"

#include "extract-addresses.hh"

#include "log.hh"

#include "log.hh"

#include "config.hh"

#include "config.hh"

using namespace std;

using namespace std;

#include <sys/types.h>

#include <sys/types.h>

#include <regex.h>

#include <regex.h>

#include "internal.hh"

#include "internal.hh"

namespace varexp

namespace varexp

    {

    {

#include <stdexcept>

#include <stdexcept>

#include <vector>

#include <vector>

#include <memory>

#include <memory>

#include <sys/types.h>

#include <sys/types.h>

#include <regex.h>

#include <regex.h>

// ISO C++ headers.

// ISO C++ headers.

#include <stdexcept>

#include <stdexcept>

#include <cerrno>

#include <cerrno>

struct system_error : public std::runtime_error

struct system_error : public std::runtime_error

    {

    {