mirror of
https://github.com/moparisthebest/curl
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90 lines
3.3 KiB
C
90 lines
3.3 KiB
C
#ifndef HEADER_CURL_MULTIBYTE_H
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#define HEADER_CURL_MULTIBYTE_H
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/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) 1998 - 2021, Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at https://curl.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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***************************************************************************/
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#include "curl_setup.h"
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#if defined(WIN32)
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/*
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* MultiByte conversions using Windows kernel32 library.
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*/
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wchar_t *curlx_convert_UTF8_to_wchar(const char *str_utf8);
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char *curlx_convert_wchar_to_UTF8(const wchar_t *str_w);
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#endif /* WIN32 */
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/*
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* Macros curlx_convert_UTF8_to_tchar(), curlx_convert_tchar_to_UTF8()
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* and curlx_unicodefree() main purpose is to minimize the number of
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* preprocessor conditional directives needed by code using these
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* to differentiate UNICODE from non-UNICODE builds.
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*
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* In the case of a non-UNICODE build the tchar strings are char strings that
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* are duplicated via strdup and remain in whatever the passed in encoding is,
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* which is assumed to be UTF-8 but may be other encoding. Therefore the
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* significance of the conversion functions is primarily for UNICODE builds.
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*
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* Allocated memory should be free'd with curlx_unicodefree().
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*
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* Note: Because these are curlx functions their memory usage is not tracked
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* by the curl memory tracker memdebug. You'll notice that curlx function-like
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* macros call free and strdup in parentheses, eg (strdup)(ptr), and that's to
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* ensure that the curl memdebug override macros do not replace them.
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*/
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#if defined(UNICODE) && defined(WIN32)
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#define curlx_convert_UTF8_to_tchar(ptr) curlx_convert_UTF8_to_wchar((ptr))
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#define curlx_convert_tchar_to_UTF8(ptr) curlx_convert_wchar_to_UTF8((ptr))
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typedef union {
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unsigned short *tchar_ptr;
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const unsigned short *const_tchar_ptr;
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unsigned short *tbyte_ptr;
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const unsigned short *const_tbyte_ptr;
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} xcharp_u;
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#else
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#define curlx_convert_UTF8_to_tchar(ptr) (strdup)(ptr)
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#define curlx_convert_tchar_to_UTF8(ptr) (strdup)(ptr)
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typedef union {
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char *tchar_ptr;
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const char *const_tchar_ptr;
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unsigned char *tbyte_ptr;
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const unsigned char *const_tbyte_ptr;
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} xcharp_u;
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#endif /* UNICODE && WIN32 */
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#define curlx_unicodefree(ptr) \
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do { \
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if(ptr) { \
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(free)(ptr); \
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(ptr) = NULL; \
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} \
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} while(0)
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#endif /* HEADER_CURL_MULTIBYTE_H */
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