xref: /aosp_15_r20/external/cronet/base/strings/latin1_string_conversions.h (revision 6777b5387eb2ff775bb5750e3f5d96f37fb7352b)

// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef BASE_STRINGS_LATIN1_STRING_CONVERSIONS_H_
#define BASE_STRINGS_LATIN1_STRING_CONVERSIONS_H_

#include <stddef.h>

#include <string>

#include "base/base_export.h"

namespace base {

// This definition of Latin1Char matches the definition of LChar in Blink. We
// use unsigned char rather than char to make less tempting to mix and match
// Latin-1 and UTF-8 characters..
typedef unsigned char Latin1Char;

// This somewhat odd function is designed to help us convert from Blink Strings
// to std::u16string. A Blink string is either backed by an array of Latin-1
// characters or an array of UTF-16 characters. This function is called by
// WebString::operator std::u16string() to convert one or the other character
// array to std::u16string. This function is defined here rather than in
// WebString.h to avoid binary bloat in all the callers of the conversion
// operator.
BASE_EXPORT std::u16string Latin1OrUTF16ToUTF16(size_t length,
                                                const Latin1Char* latin1,
                                                const char16_t* utf16);

}  // namespace base

#endif  // BASE_STRINGS_LATIN1_STRING_CONVERSIONS_H_