138 lines
3.5 KiB
C
138 lines
3.5 KiB
C
/* Copyright (C) 2010-2020 The RetroArch team
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*
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* ---------------------------------------------------------------------------------------
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* The following license statement only applies to this file (utf.h).
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* ---------------------------------------------------------------------------------------
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*
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* Permission is hereby granted, free of charge,
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* to any person obtaining a copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software,
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* and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef _LIBRETRO_ENCODINGS_UTF_H
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#define _LIBRETRO_ENCODINGS_UTF_H
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#include <stdint.h>
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#include <stddef.h>
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#include <boolean.h>
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#include <retro_common_api.h>
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RETRO_BEGIN_DECLS
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enum CodePage
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{
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CODEPAGE_LOCAL = 0, /* CP_ACP */
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CODEPAGE_UTF8 = 65001 /* CP_UTF8 */
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};
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/**
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* utf8_conv_utf32:
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*
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* Simple implementation. Assumes the sequence is
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* properly synchronized and terminated.
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**/
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size_t utf8_conv_utf32(uint32_t *out, size_t out_chars,
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const char *in, size_t in_size);
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/**
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* utf16_conv_utf8:
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*
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* Leaf function.
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**/
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bool utf16_conv_utf8(uint8_t *out, size_t *out_chars,
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const uint16_t *in, size_t in_size);
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/**
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* utf8len:
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*
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* Leaf function.
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**/
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size_t utf8len(const char *string);
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/**
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* utf8cpy:
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*
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* Acts mostly like strlcpy.
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*
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* Copies the given number of UTF-8 characters,
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* but at most @d_len bytes.
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*
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* Always NULL terminates. Does not copy half a character.
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* @s is assumed valid UTF-8.
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* Use only if @chars is considerably less than @d_len.
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*
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* Hidden non-leaf function cost:
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* - Calls memcpy
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*
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* @return Number of bytes.
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**/
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size_t utf8cpy(char *d, size_t d_len, const char *s, size_t chars);
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/**
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* utf8skip:
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*
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* Leaf function
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**/
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const char *utf8skip(const char *str, size_t chars);
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/**
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* utf8_walk:
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*
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* Does not validate the input.
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*
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* Leaf function.
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*
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* @return Returns garbage if it's not UTF-8.
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**/
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uint32_t utf8_walk(const char **string);
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/**
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* utf16_to_char_string:
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**/
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bool utf16_to_char_string(const uint16_t *in, char *s, size_t len);
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/**
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* utf8_to_local_string_alloc:
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*
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* @return Returned pointer MUST be freed by the caller if non-NULL.
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**/
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char *utf8_to_local_string_alloc(const char *str);
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/**
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* local_to_utf8_string_alloc:
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*
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* @return Returned pointer MUST be freed by the caller if non-NULL.
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**/
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char *local_to_utf8_string_alloc(const char *str);
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/**
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* utf8_to_utf16_string_alloc:
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*
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* @return Returned pointer MUST be freed by the caller if non-NULL.
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**/
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wchar_t *utf8_to_utf16_string_alloc(const char *str);
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/**
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* utf16_to_utf8_string_alloc:
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*
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* @return Returned pointer MUST be freed by the caller if non-NULL.
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**/
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char *utf16_to_utf8_string_alloc(const wchar_t *str);
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RETRO_END_DECLS
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#endif
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