mirror of
https://github.com/klzgrad/naiveproxy.git
synced 2024-12-01 01:36:09 +03:00
69 lines
2.3 KiB
C++
69 lines
2.3 KiB
C++
// Copyright 2014 The Chromium Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
#include "net/base/net_string_util.h"
|
|
|
|
#include "base/i18n/case_conversion.h"
|
|
#include "base/i18n/i18n_constants.h"
|
|
#include "base/i18n/icu_string_conversions.h"
|
|
#include "base/strings/string_util.h"
|
|
#include "third_party/icu/source/common/unicode/ucnv.h"
|
|
|
|
namespace net {
|
|
|
|
const char* const kCharsetLatin1 = base::kCodepageLatin1;
|
|
|
|
bool ConvertToUtf8(const std::string& text, const char* charset,
|
|
std::string* output) {
|
|
output->clear();
|
|
|
|
UErrorCode err = U_ZERO_ERROR;
|
|
UConverter* converter(ucnv_open(charset, &err));
|
|
if (U_FAILURE(err))
|
|
return false;
|
|
|
|
// A single byte in a legacy encoding can be expanded to 3 bytes in UTF-8.
|
|
// A 'two-byte character' in a legacy encoding can be expanded to 4 bytes
|
|
// in UTF-8. Therefore, the expansion ratio is 3 at most. Add one for a
|
|
// trailing '\0'.
|
|
size_t output_length = text.length() * 3 + 1;
|
|
char* buf = base::WriteInto(output, output_length);
|
|
output_length = ucnv_toAlgorithmic(UCNV_UTF8, converter, buf, output_length,
|
|
text.data(), text.length(), &err);
|
|
ucnv_close(converter);
|
|
if (U_FAILURE(err)) {
|
|
output->clear();
|
|
return false;
|
|
}
|
|
|
|
output->resize(output_length);
|
|
return true;
|
|
}
|
|
|
|
bool ConvertToUtf8AndNormalize(const std::string& text, const char* charset,
|
|
std::string* output) {
|
|
return base::ConvertToUtf8AndNormalize(text, charset, output);
|
|
}
|
|
|
|
bool ConvertToUTF16(const std::string& text, const char* charset,
|
|
base::string16* output) {
|
|
return base::CodepageToUTF16(text, charset,
|
|
base::OnStringConversionError::FAIL, output);
|
|
}
|
|
|
|
bool ConvertToUTF16WithSubstitutions(const std::string& text,
|
|
const char* charset,
|
|
base::string16* output) {
|
|
return base::CodepageToUTF16(text, charset,
|
|
base::OnStringConversionError::SUBSTITUTE,
|
|
output);
|
|
}
|
|
|
|
bool ToUpper(const base::string16& str, base::string16* output) {
|
|
*output = base::i18n::ToUpper(str);
|
|
return true;
|
|
}
|
|
|
|
} // namespace net
|