1/*
2 * Copyright 2011-present Facebook, Inc.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17// Some utility routines relating to unicode.
18
19#pragma once
20
21#include <string>
22
23namespace folly {
24
25//////////////////////////////////////////////////////////////////////
26
27/*
28 * Encode a single unicode code point into a UTF-8 byte sequence.
29 *
30 * Return value is undefined if `cp' is an invalid code point.
31 */
32std::string codePointToUtf8(char32_t cp);
33
34/*
35 * Decode a single unicode code point from UTF-8 byte sequence.
36 */
37char32_t utf8ToCodePoint(
38 const unsigned char*& p,
39 const unsigned char* const e,
40 bool skipOnError);
41
42//////////////////////////////////////////////////////////////////////
43
44} // namespace folly
45