/***************************************************************************
 *   Copyright (C) 2008-2012 by Andrzej Rybczak                            *
 *   electricityispower@gmail.com                                          *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.              *
 ***************************************************************************/

#ifndef _UTILITY_STRING
#define _UTILITY_STRING

#include <cstdarg>
#include <locale>
#include <string>
#include <vector>
#include "gcc.h"

template <size_t N> size_t const_strlen(const char (&)[N]) {
	return N-1;
}

template <size_t N, typename T> struct print { };
template <size_t N> struct print<N, std::string> {
	static std::string apply(const char *format, ...) GNUC_PRINTF(1, 2) {
		char buf[N];
		va_list args;
		va_start(args, format);
		vsnprintf(buf, sizeof(buf)/sizeof(char), format, args);
		va_end(args);
		return buf;
	}
};
template <size_t N> struct print<N, std::wstring> {
	static std::wstring apply(const wchar_t *format, ...) {
		wchar_t buf[N];
		va_list args;
		va_start(args, format);
		vswprintf(buf, sizeof(buf)/sizeof(wchar_t), format, args);
		va_end(args);
		return buf;
	}
};

template <typename CharT>
std::basic_string<CharT> lowercase(std::basic_string<CharT> s)
{
	std::locale loc;
	const std::ctype<CharT> &ct = std::use_facet< std::ctype<CharT> >(loc);
	for (auto it = s.begin(); it != s.end(); ++it)
		*it = ct.tolower(*it);
	return s;
}

int stringToInt(const std::string &s);
long stringToLongInt(const std::string &s);
bool isInteger(const char *s, bool accept_signed);

std::string ToString(const std::wstring &ws);
std::wstring ToWString(const std::string &s);

std::vector<std::string> split(const std::string &s, const std::string &delimiter);
void replace(std::string &s, const std::string &from, const std::string &to);

void trim(std::string &s);

std::string getBasename(const std::string &path);
std::string getParentDirectory(const std::string &path);
std::string getSharedDirectory(const std::string &dir1, const std::string &dir2);

std::string getEnclosedString(const std::string &s, char a, char b, size_t *pos);

void removeInvalidCharsFromFilename(std::string &filename);

#endif // _UTILITY_STRING