utfconv.hh

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/* SPDX-FileCopyrightText: 2012 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */

 
#ifndef __UTFCONV_H__
#define __UTFCONV_H__
 
#include <cstdio>
#include <cstdlib>
#include <cwchar>

size_t count_utf_8_from_16(const wchar_t *string16);

size_t count_utf_16_from_8(const char *string8);
 
/*
 * conv_utf_*** errors
 */

#define UTF_ERROR_NULL_IN (1 << 0)
#define UTF_ERROR_ILLCHAR (1 << 1)
#define UTF_ERROR_SMALL (1 << 2)
#define UTF_ERROR_ILLSEQ (1 << 3)

int conv_utf_16_to_8(const wchar_t *in16, char *out8, size_t size8);

int conv_utf_8_to_16(const char *in8, wchar_t *out16, size_t size16);

char *alloc_utf_8_from_16(const wchar_t *in16, size_t add);

wchar_t *alloc_utf16_from_8(const char *in8, size_t add);
 
/* Easy allocation and conversion of new utf-16 string. New string has _16 suffix.
 * Must be deallocated with UTF16_UN_ENCODE in right order. */
#define UTF16_ENCODE(in8str) \
  if (1) { \
    wchar_t *in8str##_16 = alloc_utf16_from_8((const char *)in8str, 0)
 
#define UTF16_UN_ENCODE(in8str) \
  free(in8str##_16); \
  } \
  (void)0
 
#endif /* __UTFCONV_H__ */