mirror of
https://github.com/klzgrad/naiveproxy.git
synced 2024-12-01 01:36:09 +03:00
81 lines
1.8 KiB
C++
81 lines
1.8 KiB
C++
// Copyright (c) 2011 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 "base/i18n/char_iterator.h"
|
|
|
|
#include "third_party/icu/source/common/unicode/utf8.h"
|
|
#include "third_party/icu/source/common/unicode/utf16.h"
|
|
|
|
namespace base {
|
|
namespace i18n {
|
|
|
|
UTF8CharIterator::UTF8CharIterator(const std::string* str)
|
|
: str_(reinterpret_cast<const uint8_t*>(str->data())),
|
|
len_(str->size()),
|
|
array_pos_(0),
|
|
next_pos_(0),
|
|
char_pos_(0),
|
|
char_(0) {
|
|
if (len_)
|
|
U8_NEXT(str_, next_pos_, len_, char_);
|
|
}
|
|
|
|
UTF8CharIterator::~UTF8CharIterator() = default;
|
|
|
|
bool UTF8CharIterator::Advance() {
|
|
if (array_pos_ >= len_)
|
|
return false;
|
|
|
|
array_pos_ = next_pos_;
|
|
char_pos_++;
|
|
if (next_pos_ < len_)
|
|
U8_NEXT(str_, next_pos_, len_, char_);
|
|
|
|
return true;
|
|
}
|
|
|
|
UTF16CharIterator::UTF16CharIterator(const string16* str)
|
|
: str_(reinterpret_cast<const char16*>(str->data())),
|
|
len_(str->size()),
|
|
array_pos_(0),
|
|
next_pos_(0),
|
|
char_pos_(0),
|
|
char_(0) {
|
|
if (len_)
|
|
ReadChar();
|
|
}
|
|
|
|
UTF16CharIterator::UTF16CharIterator(const char16* str, size_t str_len)
|
|
: str_(str),
|
|
len_(str_len),
|
|
array_pos_(0),
|
|
next_pos_(0),
|
|
char_pos_(0),
|
|
char_(0) {
|
|
if (len_)
|
|
ReadChar();
|
|
}
|
|
|
|
UTF16CharIterator::~UTF16CharIterator() = default;
|
|
|
|
bool UTF16CharIterator::Advance() {
|
|
if (array_pos_ >= len_)
|
|
return false;
|
|
|
|
array_pos_ = next_pos_;
|
|
char_pos_++;
|
|
if (next_pos_ < len_)
|
|
ReadChar();
|
|
|
|
return true;
|
|
}
|
|
|
|
void UTF16CharIterator::ReadChar() {
|
|
// This is actually a huge macro, so is worth having in a separate function.
|
|
U16_NEXT(str_, next_pos_, len_, char_);
|
|
}
|
|
|
|
} // namespace i18n
|
|
} // namespace base
|