quickjs-tart

quickjs-based runtime for wallet-core logic
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multibyte.h (3189B)

      1 #ifndef HEADER_CURL_MULTIBYTE_H
      2 #define HEADER_CURL_MULTIBYTE_H
      3 /***************************************************************************
      4  *                                  _   _ ____  _
      5  *  Project                     ___| | | |  _ \| |
      6  *                             / __| | | | |_) | |
      7  *                            | (__| |_| |  _ <| |___
      8  *                             \___|\___/|_| \_\_____|
      9  *
     10  * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
     11  *
     12  * This software is licensed as described in the file COPYING, which
     13  * you should have received as part of this distribution. The terms
     14  * are also available at https://curl.se/docs/copyright.html.
     15  *
     16  * You may opt to use, copy, modify, merge, publish, distribute and/or sell
     17  * copies of the Software, and permit persons to whom the Software is
     18  * furnished to do so, under the terms of the COPYING file.
     19  *
     20  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
     21  * KIND, either express or implied.
     22  *
     23  * SPDX-License-Identifier: curl
     24  *
     25  ***************************************************************************/
     26 #include "../curl_setup.h"
     27 
     28 #ifdef _WIN32
     29 
     30  /*
     31   * MultiByte conversions using Windows kernel32 library.
     32   */
     33 
     34 wchar_t *curlx_convert_UTF8_to_wchar(const char *str_utf8);
     35 char *curlx_convert_wchar_to_UTF8(const wchar_t *str_w);
     36 #endif /* _WIN32 */
     37 
     38 /*
     39  * Macros curlx_convert_UTF8_to_tchar(), curlx_convert_tchar_to_UTF8()
     40  * and curlx_unicodefree() main purpose is to minimize the number of
     41  * preprocessor conditional directives needed by code using these
     42  * to differentiate Unicode from non-Unicode builds.
     43  *
     44  * In the case of a non-Unicode build the tchar strings are char strings that
     45  * are duplicated via strdup and remain in whatever the passed in encoding is,
     46  * which is assumed to be UTF-8 but may be other encoding. Therefore the
     47  * significance of the conversion functions is primarily for Unicode builds.
     48  *
     49  * Allocated memory should be free'd with curlx_unicodefree().
     50  *
     51  * Note: Because these are curlx functions their memory usage is not tracked
     52  * by the curl memory tracker memdebug. you will notice that curlx
     53  * function-like macros call free and strdup in parentheses, eg (strdup)(ptr),
     54  * and that is to ensure that the curl memdebug override macros do not replace
     55  * them.
     56  */
     57 
     58 #if defined(UNICODE) && defined(_WIN32)
     59 
     60 #define curlx_convert_UTF8_to_tchar(ptr) curlx_convert_UTF8_to_wchar((ptr))
     61 #define curlx_convert_tchar_to_UTF8(ptr) curlx_convert_wchar_to_UTF8((ptr))
     62 
     63 typedef union {
     64   unsigned short       *tchar_ptr;
     65   const unsigned short *const_tchar_ptr;
     66   unsigned short       *tbyte_ptr;
     67   const unsigned short *const_tbyte_ptr;
     68 } xcharp_u;
     69 
     70 #else
     71 
     72 #define curlx_convert_UTF8_to_tchar(ptr) (strdup)(ptr)
     73 #define curlx_convert_tchar_to_UTF8(ptr) (strdup)(ptr)
     74 
     75 typedef union {
     76   char                *tchar_ptr;
     77   const char          *const_tchar_ptr;
     78   unsigned char       *tbyte_ptr;
     79   const unsigned char *const_tbyte_ptr;
     80 } xcharp_u;
     81 
     82 #endif /* UNICODE && _WIN32 */
     83 
     84 /* the purpose of this macro is to free() without being traced by memdebug */
     85 #define curlx_unicodefree(ptr) (free)(CURL_UNCONST(ptr))
     86 
     87 #endif /* HEADER_CURL_MULTIBYTE_H */