// Copyright 2014 The Chromium Authors. All rights reserved. // Copyright (C) 2016 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: // // * 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 "config.h" #include "CSSTokenizerInputStream.h" #include "HTMLParserIdioms.h" namespace WebCore { CSSTokenizerInputStream::CSSTokenizerInputStream(const String& input) : m_offset(0) , m_stringLength(input.length()) , m_string(input.impl()) { } void CSSTokenizerInputStream::advanceUntilNonWhitespace() { // Using HTML space here rather than CSS space since we don't do preprocessing if (m_string->is8Bit()) { const LChar* characters = m_string->characters8(); while (m_offset < m_stringLength && isHTMLSpace(characters[m_offset])) ++m_offset; } else { const UChar* characters = m_string->characters16(); while (m_offset < m_stringLength && isHTMLSpace(characters[m_offset])) ++m_offset; } } double CSSTokenizerInputStream::getDouble(unsigned start, unsigned end) const { ASSERT(start <= end && ((m_offset + end) <= m_stringLength)); bool isResultOK = false; double result = 0.0; if (start < end) { if (m_string->is8Bit()) result = charactersToDouble(m_string->characters8() + m_offset + start, end - start, &isResultOK); else result = charactersToDouble(m_string->characters16() + m_offset + start, end - start, &isResultOK); } // FIXME: It looks like callers ensure we have a valid number return isResultOK ? result : 0.0; } } // namespace WebCore