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/*
* ScannerHelper.h -
*
* Copyright (c) 2008 Higepon(Taro Minowa) <higepon@users.sourceforge.jp>
*
* 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 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.
*
* $Id: ScannerHelper.h 261 2008-07-25 06:16:44Z higepon $
*/

#ifndef SCHEME_SCANNER_HELPER_
#define SCHEME_SCANNER_HELPER_

#include "scheme.h"

namespace scheme {

class ScannerHelper EXTEND_GC
{
public:
    static ucs4char hexStringToUCS4Char(ucs4char* start, ucs4char* end);
    static int num10StringToInt(ucs4char* start, ucs4char* end);
    static int num16StringToInt(ucs4char* start, ucs4char* end);
    static Object applyExactness(int exactness, Object num);
};

} // namespace scheme

#endif // SCHEME_SCANNERHELPER_
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