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UnicodeHelpers.h
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UnicodeHelpers.h
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/**
* UTF-16/UTF-8 Helper Functions
* Copyright (C) Kai Liu. All rights reserved.
*
* Please refer to readme.txt for information about this source code.
* Please refer to license.txt for details about distribution and modification.
**/
#ifndef __UNICODEHELPERS_H__
#define __UNICODEHELPERS_H__
#ifdef __cplusplus
extern "C" {
#endif
#include <windows.h>
#include "libs\SimpleString.h"
/**
* Helper Macros
* Argument order: source, destination, count (follow the order in the name)
**/
#define WStrToStrEx(w, a, c, cp) WideCharToMultiByte(cp, 0, w, -1, a, c, NULL, NULL)
#define StrToWStrEx(a, w, c, cp) MultiByteToWideChar(cp, 0, a, -1, w, c)
#define WStrToAStr(w, a, c) WideCharToMultiByte(CP_ACP, 0, w, -1, a, c, NULL, NULL)
#define AStrToWStr(a, w, c) MultiByteToWideChar(CP_ACP, 0, a, -1, w, c)
#define WStrToUTF8(w, a, c) WideCharToMultiByte(CP_UTF8, 0, w, -1, a, c, NULL, NULL)
#define UTF8ToWStr(a, w, c) MultiByteToWideChar(CP_UTF8, 0, a, -1, w, c)
#ifdef UNICODE
#define TStrToAStr WStrToAStr
#define AStrToTStr AStrToWStr
#define TStrToWStr(t, w, c) SSCpyW(w, t)
#define WStrToTStr(w, t, c) SSCpyW(t, w)
#else
#define TStrToAStr(t, a, c) SSCpyA(a, t)
#define AStrToTStr(a, t, c) SSCpyA(t, a)
#define TStrToWStr AStrToWStr
#define WStrToTStr WStrToAStr
#endif
/**
* IsTextUnicode definitions
**/
#define IS_TEXT_UNICODE (IS_TEXT_UNICODE_UNICODE_MASK | IS_TEXT_UNICODE_REVERSE_MASK)
#define IS_TEXT_BOM (IS_TEXT_UNICODE_SIGNATURE | IS_TEXT_UNICODE_REVERSE_SIGNATURE)
/**
* IsTextUTF8 - Checks if a string is UTF-8, and if it is, returns a pointer to
* the start of the string (skipping the BOM if there is one); NULL is returned
* if the string is not UTF-8.
*
* NOTE: To simplify bounds checking, the buffer passed to IsTextUTF8 needs to
* be NULL-terminated and must extend at least 2 bytes past the NULL terminator!
**/
PBYTE __fastcall IsTextUTF8( PBYTE pbData );
/**
* BufferToWStr - Converts a malloc-allocated buffer to Unicode and returns
* a pointer to the start of the new Unicode string, with any BOMs skipped;
* NULL is returned if the operation failed.
*
* NOTE: BufferToWStr may re-allocate a larger buffer, in which case the
* original buffer is freed and *ppbData will be a pointer to the new buffer
* (otherwise, *ppbData will be unchanged); cbData should be the size, in bytes
* of the data in the buffer, without any NULL terminations.
*
* NOTE: To simplify bounds checking, the buffer passed to BufferToWStr should
* be at least 3 bytes larger than cbData, and the first 2 of these bytes
* should be NULL (to serve as the termination of the string); the easiest way
* to do this is to append a zero DWORD to the end of the string.
**/
PWSTR __fastcall BufferToWStr( PBYTE *ppbData, DWORD cbData );
#ifdef __cplusplus
}
#endif
#endif