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/*
* Copyright (C) 2009 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "third_party/blink/public/platform/web_string.h"
#include "base/strings/latin1_string_conversions.h"
#include "base/strings/string_util.h"
#include "third_party/blink/renderer/platform/wtf/assertions.h"
#include "third_party/blink/renderer/platform/wtf/text/ascii_fast_path.h"
#include "third_party/blink/renderer/platform/wtf/text/atomic_string.h"
#include "third_party/blink/renderer/platform/wtf/text/string_utf8_adaptor.h"
#include "third_party/blink/renderer/platform/wtf/text/string_view.h"
#include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"
#include "third_party/blink/renderer/platform/wtf/wtf_size_t.h"
STATIC_ASSERT_ENUM(WTF::Utf8ConversionMode::kLenient,
blink::WebString::UTF8ConversionMode::kLenient);
STATIC_ASSERT_ENUM(WTF::Utf8ConversionMode::kStrict,
blink::WebString::UTF8ConversionMode::kStrict);
STATIC_ASSERT_ENUM(
WTF::Utf8ConversionMode::kStrictReplacingErrors,
blink::WebString::UTF8ConversionMode::kStrictReplacingErrorsWithFFFD);
namespace blink {
WebString::~WebString() = default;
WebString::WebString() = default;
WebString::WebString(const WebString&) = default;
WebString::WebString(WebString&&) = default;
WebString& WebString::operator=(const WebString&) = default;
WebString& WebString::operator=(WebString&&) = default;
WebString::WebString(std::u16string_view s)
: impl_(StringImpl::Create8BitIfPossible(s)) {}
void WebString::Reset() {
impl_ = nullptr;
}
size_t WebString::length() const {
return impl_ ? impl_->length() : 0;
}
bool WebString::Is8Bit() const {
return impl_->Is8Bit();
}
std::string WebString::Utf8(UTF8ConversionMode mode) const {
return String(impl_).Utf8(static_cast<WTF::Utf8ConversionMode>(mode));
}
WebString WebString::Substring(size_t pos, size_t len) const {
return String(impl_->Substring(base::checked_cast<wtf_size_t>(pos),
base::checked_cast<wtf_size_t>(len)));
}
WebString WebString::FromUTF8(std::string_view s) {
return String::FromUTF8(s);
}
std::u16string WebString::Utf16() const {
return impl_ ? impl_->ToU16String() : std::u16string();
}
WebString WebString::FromUTF16(std::optional<std::u16string_view> s) {
if (!s.has_value()) {
return WebString();
}
return WebString(*s);
}
std::string WebString::Latin1() const {
return String(impl_).Latin1();
}
WebString WebString::FromLatin1(std::string_view s) {
return String(s);
}
std::string WebString::Ascii() const {
DCHECK(ContainsOnlyASCII());
if (IsEmpty())
return std::string();
if (impl_->Is8Bit()) {
auto latin1 = base::as_chars(impl_->Span8());
return std::string(base::as_string_view(latin1));
}
auto utf16 = impl_->Span16();
return std::string(utf16.begin(), utf16.end());
}
bool WebString::ContainsOnlyASCII() const {
return String(impl_).ContainsOnlyASCIIOrEmpty();
}
WebString WebString::FromASCII(std::string_view s) {
DCHECK(base::IsStringASCII(s));
return FromLatin1(s);
}
bool WebString::Equals(const WebString& s) const {
return Equal(impl_.get(), s.impl_.get());
}
bool WebString::Equals(std::string_view characters) const {
return Equal(impl_.get(), characters);
}
size_t WebString::Find(const WebString& s) const {
if (!impl_) {
return std::string::npos;
}
wtf_size_t pos = impl_->Find(s.impl_.get());
return pos != WTF::kNotFound ? pos : std::string::npos;
}
size_t WebString::Find(std::string_view characters) const {
if (!impl_) {
return std::string::npos;
}
wtf_size_t pos = impl_->Find(characters.data());
return pos != WTF::kNotFound ? pos : std::string::npos;
}
bool WebString::operator<(const WebString& other) const {
return WTF::CodeUnitCompare(impl_.get(), other.impl_.get()) < 0;
}
WebString::WebString(const WTF::String& s) : impl_(s.Impl()) {}
WebString& WebString::operator=(const WTF::String& s) {
impl_ = s.Impl();
return *this;
}
WebString::operator WTF::String() const {
return impl_.get();
}
WebString::operator WTF::StringView() const {
return StringView(impl_.get());
}
WebString::WebString(const WTF::AtomicString& s) {
impl_ = s.Impl();
}
WebString& WebString::operator=(const WTF::AtomicString& s) {
impl_ = s.Impl();
return *this;
}
WebString::operator WTF::AtomicString() const {
return WTF::AtomicString(impl_);
}
} // namespace blink
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