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/* unicode-utils.h
* Unicode utility definitions
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 2006 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#ifndef __UNICODEUTIL_H__
#define __UNICODEUTIL_H__
#include "ws_symbol_export.h"
#include <glib.h>
/**
* @file
* Unicode convenience routines.
*/
#ifdef __cplusplus
extern "C" {
#endif
WS_DLL_PUBLIC
int ws_utf8_char_len(guint8 ch);
#ifdef _WIN32
#include <windows.h>
#include <tchar.h>
#include <wchar.h>
/** Given a UTF-8 string, convert it to UTF-16. This is meant to be used
* to convert between GTK+ 2.x (UTF-8) to Windows (UTF-16).
*
* @param utf8str The string to convert. May be NULL.
* @return The string converted to UTF-16. If utf8str is NULL, returns
* NULL. The return value should NOT be freed by the caller.
*/
WS_DLL_PUBLIC
const wchar_t * utf_8to16(const char *utf8str);
/** Create a UTF-16 string (in place) according to the format string.
*
* @param utf16buf The buffer to return the UTF-16 string in.
* @param utf16buf_len The size of the 'utf16buf' parameter
* @param fmt A standard g_printf() format string
*/
WS_DLL_PUBLIC
void utf_8to16_snprintf(TCHAR *utf16buf, gint utf16buf_len, const gchar* fmt,
...) G_GNUC_PRINTF(3, 4);
/** Given a UTF-16 string, convert it to UTF-8. This is meant to be used
* to convert between GTK+ 2.x (UTF-8) to Windows (UTF-16).
*
* @param utf16str The string to convert. May be NULL.
* @return The string converted to UTF-8. If utf16str is NULL, returns
* NULL. The return value should NOT be freed by the caller.
*/
WS_DLL_PUBLIC
gchar * utf_16to8(const wchar_t *utf16str);
/** Convert the supplied program argument list from UTF-16 to UTF-8
* return a pointer to the array of UTF-8 arguments. This is intended
* to be used to normalize command line arguments at program startup.
*
* @param argc The number of arguments.
* @param argv The argument values (vector).
*/
WS_DLL_PUBLIC
char ** arg_list_utf_16to8(int argc, wchar_t *wc_argv[]);
#endif /* _WIN32 */
/*
* defines for helping with UTF-16 surrogate pairs
*/
#define IS_LEAD_SURROGATE(uchar2) \
((uchar2) >= 0xd800 && (uchar2) < 0xdc00)
#define IS_TRAIL_SURROGATE(uchar2) \
((uchar2) >= 0xdc00 && (uchar2) < 0xe000)
#define SURROGATE_VALUE(lead, trail) \
(((((lead) - 0xd800) << 10) | ((trail) - 0xdc00)) + 0x10000)
#ifdef __cplusplus
}
#endif
#endif /* __UNICODEUTIL_H__ */
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