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/*****************************************************************************
* $Id: history.h,v 1.11 2002/08/17 13:19:31 mishoo Exp $
* Copyright (C) 2000, Mishoo
* Author: Mihai Bazon Email: mishoo@fenrir.infoiasi.ro
*
* Distributed under the terms of the GNU General Public License. You are
* free to use/modify/distribute this program as long as you comply to the
* terms of the GNU General Public License, version 2 or above, at your
* option, and provided that this copyright notice remains intact.
*****************************************************************************/
#ifndef __HISTORY_H__
#define __HISTORY_H__
#include <vector>
#include <string>
using namespace std;
class HistoryFile
{
protected:
int m_file_entries;
string m_filename;
string m_default;
bool m_default_set;
int m_current;
typedef vector<string> StrArray;
StrArray history;
public:
HistoryFile();
~HistoryFile();
void append(const char *entry);
void set_default(const char *defstr);
void clear_default();
void reset_position();
const char * operator [] (size_t index);
const char * prev();
const char * next();
const char * prev_to_first();
const char * next_to_last();
void sync_the_file();
inline const char* last_item() {
return history.empty() ? 0 : history.back().c_str();
}
inline const char* first_item() {
return history.empty() ? 0 : history.front().c_str();
}
protected:
void read_the_file();
private:
struct DumpString {
DumpString(std::ostream& o) : _out(o) {}
void operator()(std::string& str) { _out << str << endl; }
private:
std::ostream& _out;
};
};
#endif // __HISTORY_H__
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