| /* |
| * Copyright (C) 2010 Apple 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: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. 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. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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 "config.h" |
| #include "WKString.h" |
| #include "WKStringPrivate.h" |
| |
| #include "WKAPICast.h" |
| #include <JavaScriptCore/InitializeThreading.h> |
| #include <JavaScriptCore/OpaqueJSString.h> |
| #include <WebCore/WebCoreJITOperations.h> |
| #include <wtf/unicode/UTF8Conversion.h> |
| |
| WKTypeID WKStringGetTypeID() |
| { |
| return WebKit::toAPI(API::String::APIType); |
| } |
| |
| WKStringRef WKStringCreateWithUTF8CString(const char* string) |
| { |
| return WebKit::toAPI(&API::String::create(WTF::String::fromUTF8(string)).leakRef()); |
| } |
| |
| bool WKStringIsEmpty(WKStringRef stringRef) |
| { |
| return WebKit::toImpl(stringRef)->stringView().isEmpty(); |
| } |
| |
| size_t WKStringGetLength(WKStringRef stringRef) |
| { |
| return WebKit::toImpl(stringRef)->stringView().length(); |
| } |
| |
| size_t WKStringGetCharacters(WKStringRef stringRef, WKChar* buffer, size_t bufferLength) |
| { |
| static_assert(sizeof(WKChar) == sizeof(UChar), "Size of WKChar must match size of UChar"); |
| |
| unsigned unsignedBufferLength = std::min<size_t>(bufferLength, std::numeric_limits<unsigned>::max()); |
| auto substring = WebKit::toImpl(stringRef)->stringView().substring(0, unsignedBufferLength); |
| |
| substring.getCharactersWithUpconvert(reinterpret_cast<UChar*>(buffer)); |
| return substring.length(); |
| } |
| |
| size_t WKStringGetMaximumUTF8CStringSize(WKStringRef stringRef) |
| { |
| return static_cast<size_t>(WebKit::toImpl(stringRef)->stringView().length()) * 3 + 1; |
| } |
| |
| enum StrictType { NonStrict = false, Strict = true }; |
| |
| template <StrictType strict> |
| size_t WKStringGetUTF8CStringImpl(WKStringRef stringRef, char* buffer, size_t bufferSize) |
| { |
| if (!bufferSize) |
| return 0; |
| |
| auto stringView = WebKit::toImpl(stringRef)->stringView(); |
| |
| char* p = buffer; |
| |
| if (stringView.is8Bit()) { |
| const LChar* characters = stringView.characters8(); |
| if (!WTF::Unicode::convertLatin1ToUTF8(&characters, characters + stringView.length(), &p, p + bufferSize - 1)) |
| return 0; |
| } else { |
| const UChar* characters = stringView.characters16(); |
| auto result = WTF::Unicode::convertUTF16ToUTF8(&characters, characters + stringView.length(), &p, p + bufferSize - 1, strict); |
| if (result != WTF::Unicode::ConversionOK && result != WTF::Unicode::TargetExhausted) |
| return 0; |
| } |
| |
| *p++ = '\0'; |
| return p - buffer; |
| } |
| |
| size_t WKStringGetUTF8CString(WKStringRef stringRef, char* buffer, size_t bufferSize) |
| { |
| return WKStringGetUTF8CStringImpl<StrictType::Strict>(stringRef, buffer, bufferSize); |
| } |
| |
| size_t WKStringGetUTF8CStringNonStrict(WKStringRef stringRef, char* buffer, size_t bufferSize) |
| { |
| return WKStringGetUTF8CStringImpl<StrictType::NonStrict>(stringRef, buffer, bufferSize); |
| } |
| |
| bool WKStringIsEqual(WKStringRef aRef, WKStringRef bRef) |
| { |
| return WebKit::toImpl(aRef)->stringView() == WebKit::toImpl(bRef)->stringView(); |
| } |
| |
| bool WKStringIsEqualToUTF8CString(WKStringRef aRef, const char* b) |
| { |
| // FIXME: Should we add a fast path that avoids memory allocation when the string is all ASCII? |
| // FIXME: We can do even the general case more efficiently if we write a function in StringView that understands UTF-8 C strings. |
| return WebKit::toImpl(aRef)->stringView() == WTF::String::fromUTF8(b); |
| } |
| |
| bool WKStringIsEqualToUTF8CStringIgnoringCase(WKStringRef aRef, const char* b) |
| { |
| // FIXME: Should we add a fast path that avoids memory allocation when the string is all ASCII? |
| // FIXME: We can do even the general case more efficiently if we write a function in StringView that understands UTF-8 C strings. |
| return equalIgnoringASCIICase(WebKit::toImpl(aRef)->stringView(), WTF::String::fromUTF8(b)); |
| } |
| |
| WKStringRef WKStringCreateWithJSString(JSStringRef jsStringRef) |
| { |
| auto apiString = jsStringRef ? API::String::create(jsStringRef->string()) : API::String::createNull(); |
| |
| return WebKit::toAPI(&apiString.leakRef()); |
| } |
| |
| JSStringRef WKStringCopyJSString(WKStringRef stringRef) |
| { |
| JSC::initialize(); |
| WebCore::populateJITOperations(); |
| return OpaqueJSString::tryCreate(WebKit::toImpl(stringRef)->string()).leakRef(); |
| } |