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/*
* winchar.cpp
*
* This file is a part of NSIS.
*
* Copyright (C) 1999-2008 Nullsoft and Contributors
*
* Licensed under the zlib/libpng license (the "License");
* you may not use this file except in compliance with the License.
*
* Licence details can be found in the file COPYING.
*
* This software is provided 'as-is', without any express or implied
* warranty.
*/
#include "Platform.h"
#include "winchar.h"
#include "util.h"
#include <stdexcept>
using std::runtime_error;
WCHAR *winchar_fromansi(const char* s, unsigned int codepage/*=CP_ACP*/)
{
int l = MultiByteToWideChar(codepage, 0, s, -1, 0, 0);
if (l == 0)
throw runtime_error("Unicode conversion failed");
WCHAR *ws = new WCHAR[l + 1];
if (MultiByteToWideChar(codepage, 0, s, -1, ws, l + 1) == 0)
throw runtime_error("Unicode conversion failed");
return ws;
}
char *winchar_toansi(const WCHAR* ws, unsigned int codepage/*=CP_ACP*/)
{
int l = WideCharToMultiByte(codepage, 0, ws, -1, 0, 0, 0, 0);
if (l == 0)
throw runtime_error("Unicode conversion failed");
char *s = new char[l + 1];
if (WideCharToMultiByte(codepage, 0, ws, -1, s, l + 1, 0, 0) == 0)
throw runtime_error("Unicode conversion failed");
return s;
}
WCHAR *winchar_strcpy(WCHAR *ws1, const WCHAR *ws2)
{
WCHAR *ret = ws1;
while (*ws2)
{
*ws1++ = *ws2++;
}
*ws1 = 0;
return ret;
}
WCHAR *winchar_strncpy(WCHAR *ws1, const WCHAR *ws2, size_t n)
{
WCHAR *ret = ws1;
while (n && *ws2)
{
*ws1++ = *ws2++;
n--;
}
while (n--)
{
*ws1++ = 0;
}
return ret;
}
size_t winchar_strlen(const WCHAR *ws)
{
size_t len = 0;
while (*ws++)
{
len++;
}
return len;
}
WCHAR *winchar_strdup(const WCHAR *ws)
{
WCHAR *dup = new WCHAR[winchar_strlen(ws) + 1];
winchar_strcpy(dup, ws);
return dup;
}
int winchar_strcmp(const WCHAR *ws1, const WCHAR *ws2)
{
int diff = 0;
do
{
diff = static_cast<int>(*ws1) - static_cast<int>(*ws2);
}
while (*ws1++ && *ws2++ && !diff);
return diff;
}
int winchar_stoi(const WCHAR *ws)
{
char *s = winchar_toansi(ws);
int ret = atoi(s);
delete [] s;
return ret;
}
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