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// Copyright 2014 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.
#ifndef CSSTokenizerInputStream_h
#define CSSTokenizerInputStream_h
#include "wtf/text/WTFString.h"
namespace blink {
class CSSTokenizerInputStream {
WTF_MAKE_NONCOPYABLE(CSSTokenizerInputStream);
WTF_MAKE_FAST_ALLOCATED;
public:
CSSTokenizerInputStream(String input);
UChar peek(unsigned);
inline UChar nextInputChar()
{
return peek(0);
}
void advance(unsigned = 1);
void pushBack(UChar);
inline size_t maxLength()
{
return m_string.length() + 1;
}
inline size_t leftChars()
{
return m_string.length() - m_offset;
}
unsigned long long getUInt(unsigned start, unsigned end);
double getDouble(unsigned start, unsigned end);
template<bool characterPredicate(UChar)>
unsigned skipWhilePredicate(unsigned offset)
{
while ((m_offset + offset) < m_string.length() && characterPredicate(m_string[m_offset + offset]))
++offset;
return offset;
}
private:
size_t m_offset;
String m_string;
};
} // namespace blink
#endif // CSSTokenizerInputStream_h
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