TextFilter.h

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#ifndef __SCV_TEXT_FILTER_H__
#define __SCV_TEXT_FILTER_H__

namespace scv {

class TextFilter {
public:

   TextFilter(void);

   void allowAll(void);
   void allowNumbers(void);
   void allowLetters(void);
   void allowThese(const std::string &filter);
   void denyAll(void);
   void denyNumbers(void);
   void denyLetters(void);
   void denyThese(const std::string &filter);
   bool checkFilter(char character);

protected:

private:

   static const int s_printableCharacters = 94;
   static const int s_vectorDisplacement  = 32;
   bool _filter[s_printableCharacters + 1];
};

} // namespace scv

#endif // __SCV_TEXT_FILTER_H__