15c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)/* 293ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles) * Copyright (C) 2013 Google Inc. All rights reserved. 35c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 45c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Redistribution and use in source and binary forms, with or without 55c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * modification, are permitted provided that the following conditions are 65c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * met: 75c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 85c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * * Redistributions of source code must retain the above copyright 95c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * notice, this list of conditions and the following disclaimer. 105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * * Redistributions in binary form must reproduce the above 115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * copyright notice, this list of conditions and the following disclaimer 125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * in the documentation and/or other materials provided with the 135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * distribution. 145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * * Neither the name of Google Inc. nor the names of its 155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * contributors may be used to endorse or promote products derived from 165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * this software without specific prior written permission. 175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 235c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 265c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 275c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 285c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 295c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) */ 305c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 3193ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles)#ifndef StringUTF8Adaptor_h 3293ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles)#define StringUTF8Adaptor_h 335c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 3493ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles)#include "wtf/text/CString.h" 3553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "wtf/text/WTFString.h" 365c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 3793ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles)namespace WTF { 385c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 3993ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles)// This class lets you get UTF-8 data out of a String without mallocing a 4093ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles)// separate buffer to hold the data if the String happens to be 8 bit and 4193ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles)// contain only ASCII characters. 4293ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles)class StringUTF8Adaptor { 435c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)public: 4493ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles) explicit StringUTF8Adaptor(const String& string) 4593ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles) : m_data(0) 4693ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles) , m_length(0) 475c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) { 4893ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles) if (string.isEmpty()) 4993ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles) return; 5093ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles) // Unfortunately, 8 bit WTFStrings are encoded in Latin-1 and GURL uses UTF-8 5193ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles) // when processing 8 bit strings. If |relative| is entirely ASCII, we luck out 5293ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles) // and can avoid mallocing a new buffer to hold the UTF-8 data because UTF-8 5393ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles) // and Latin-1 use the same code units for ASCII code points. 5493ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles) if (string.is8Bit() && string.containsOnlyASCII()) { 5593ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles) m_data = reinterpret_cast<const char*>(string.characters8()); 5693ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles) m_length = string.length(); 5793ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles) } else { 5893ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles) m_utf8Buffer = string.utf8(); 5993ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles) m_data = m_utf8Buffer.data(); 6093ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles) m_length = m_utf8Buffer.length(); 6193ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles) } 625c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 635c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 6493ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles) const char* data() const { return m_data; } 6593ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles) size_t length() const { return m_length; } 665c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 675c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)private: 6893ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles) CString m_utf8Buffer; 6993ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles) const char* m_data; 7093ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles) size_t m_length; 715c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)}; 725c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 7393ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles)} // namespace WTF 7493ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles) 7593ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles)using WTF::StringUTF8Adaptor; 765c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 7793ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles)#endif // StringUTF8Adaptor_h 78