//
//  BCToolSymbolCounter.h
//  BioCocoa
//
//  Created by Koen van der Drift on 10/27/04.
//  Copyright (c) 2003-2009 The BioCocoa Project.
//  All rights reserved.
//
//  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.
//  3. The name of the author may not be used to endorse or promote products
//  derived from this software without specific prior written permission.
//
//  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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.
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//  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
//  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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//  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

/*!
@header
@abstract Symbol counting.
*/

#import <Foundation/Foundation.h>
#import "BCSequenceTool.h"

/*!
@class BCToolSymbolCounter
@abstract    A wrapper class to count each symbol in a symbollist
@discussion  This class can be used to count the number of occurances of each BCSymbol in a BCSequence. 
* To use it simply pass any BCSequence object to the initializer or class method.
* Then call the countSymbols: method. The class will
* return an NSCountedSet containing the number of each BCSymbol in the sequence.
*/

@interface BCToolSymbolCounter : BCSequenceTool
{
}

+ (BCToolSymbolCounter *) symbolCounterWithSequence: (BCSequence *)list;

- (NSCountedSet *)countSymbols;
- (NSCountedSet *)countSymbolsForRange: (NSRange)aRange;

@end
