64a0f32e52
git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@6047 212acab6-be3b-0410-9dea-997c60f758d6
107 lines
1.8 KiB
C++
107 lines
1.8 KiB
C++
/*
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* winchar.cpp
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*
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* This file is a part of NSIS.
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*
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* Copyright (C) 1999-2009 Nullsoft and Contributors
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*
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* Licensed under the zlib/libpng license (the "License");
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* you may not use this file except in compliance with the License.
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*
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* Licence details can be found in the file COPYING.
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*
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* This software is provided 'as-is', without any express or implied
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* warranty.
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*
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* Reviewed for Unicode support by Jim Park -- 08/13/2007
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*/
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#include "Platform.h"
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#include "winchar.h"
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#include "util.h"
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#include <stdexcept>
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using std::runtime_error;
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WCHAR *winchar_fromTchar(const TCHAR* s, unsigned int codepage/*=CP_ACP*/)
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{
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#ifdef _UNICODE
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return _wcsdup(s); // codepage is not used in this mode
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#else
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int l = MultiByteToWideChar(codepage, 0, s, -1, 0, 0);
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if (l == 0)
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throw runtime_error("Unicode conversion failed");
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WCHAR *ws = new WCHAR[l + 1];
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if (MultiByteToWideChar(codepage, 0, s, -1, ws, l + 1) == 0)
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throw runtime_error("Unicode conversion failed");
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return ws;
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#endif
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}
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WCHAR *winchar_strcpy(WCHAR *ws1, const WCHAR *ws2)
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{
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WCHAR *ret = ws1;
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while (*ws2)
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{
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*ws1++ = *ws2++;
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}
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*ws1 = 0;
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return ret;
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}
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WCHAR *winchar_strncpy(WCHAR *ws1, const WCHAR *ws2, size_t n)
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{
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WCHAR *ret = ws1;
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while (n && *ws2)
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{
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*ws1++ = *ws2++;
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n--;
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}
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while (n--)
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{
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*ws1++ = 0;
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}
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return ret;
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}
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size_t winchar_strlen(const WCHAR *ws)
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{
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size_t len = 0;
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while (*ws++)
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{
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len++;
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}
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return len;
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}
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WCHAR *winchar_strdup(const WCHAR *ws)
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{
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WCHAR *dup = new WCHAR[winchar_strlen(ws) + 1];
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winchar_strcpy(dup, ws);
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return dup;
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}
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int winchar_strcmp(const WCHAR *ws1, const WCHAR *ws2)
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{
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int diff = 0;
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do
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{
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diff = static_cast<int>(*ws1) - static_cast<int>(*ws2);
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}
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while (*ws1++ && *ws2++ && !diff);
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return diff;
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}
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