asciiCharParser.hpp

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#ifndef _WOLFRAME_UTILS_ASCII_CHAR_PARSER_HPP_INCLUDED
#define _WOLFRAME_UTILS_ASCII_CHAR_PARSER_HPP_INCLUDED
#include <cstddef>

namespace _Wolframe {
namespace utils {

class AsciiCharParser
{
public:
        enum Encoding
        {
                NONE,UCS1,UCS2BE,UCS2LE,UCS4BE,UCS4LE
        };
        AsciiCharParser()
                :m_src(0),m_itr(0),m_end(0),m_lastError(0),m_encoding(NONE),m_bufsize(0){}

        void putInput( const char* src, std::size_t srcsize);

        unsigned char getNext();

        const char* lastError() const           {return m_lastError;}

private:
        bool prepareChar( unsigned int chrsize);
        void consumeChar( unsigned int chrsize);

private:
        const char* m_src;
        std::size_t m_itr;
        std::size_t m_end;
        const char* m_lastError;
        Encoding m_encoding;
        enum {BufSize=8};
        unsigned char m_buf[ BufSize];
        std::size_t m_bufsize;
};

}}
#endif