TextCharFilter.h

//========================================================================================
// 
// $File$
// 
// Owner: Florin Trofin
// 
// $Author$
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// $DateTime$
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// Copyright 1997-2010 Adobe Systems Incorporated. All rights reserved.
// 
// NOTICE: Adobe permits you to use, modify, and distribute this file in accordance 
// with the terms of the Adobe license agreement accompanying it. If you have received
// this file from a source other than Adobe, then your use, modification, or 
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//========================================================================================

#ifndef __TextCharFilter__
#define __TextCharFilter__

#include "AnsiBasedTypes.h"
#include <functional>
#include <set>

class TextCharFilter : public std::function<bool (UTF32TextChar) >
{
public:
 typedef std::set<UTF32TextChar> CharSet;


 TextCharFilter() { }

 TextCharFilter( textchar const* pFilteredChars, size_t count )
 {
 size_t i(0);
 for (; i < count; ++i)
 {
 Add(pFilteredChars[i]);
 }
 }

 bool Add( textchar ch )
 {
 return fFilter.insert( ch ).second;
 }

 bool Remove( textchar ch )
 {
 return (fFilter.erase( ch ) != 0);
 }

 CharSet const& GetFilter( void ) const
 {
 return fFilter;
 }

 bool operator()( UTF32TextChar const& ch ) const
 {
 return (fFilter.find(ch) != fFilter.end());
 }

private:
 CharSet fFilter;
};


#endif // __TextCharFilter__ //