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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
/**
* @author Peter Boros
* @date 2004/08/20
* @version $Id$
* @file tokenizer.h
* @brief Generic tokenizer class.
*/
#pragma once
#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
namespace fsa {
// {{{ class Tokenizer
/**
* @class Tokenizer
* @brief Generic tokenizer class.
*
* Generic interface to various tokenizer implementations.
*/
class Tokenizer {
public:
/**
* @brief Constructor.
*/
Tokenizer() {}
/**
* @brief Destructor.
*/
virtual ~Tokenizer() {}
/**
* @brief Initialize the tokenizer.
*
* @param text Input text.
* @return True on success.
*/
virtual bool init(const std::string &text) = 0;
/**
* @brief Check if there are more tokens available.
*
* @return True if there are more tokens.
*/
virtual bool hasMore() = 0;
/**
* @brief Get next token.
*
* @return Next token, or empty string if there are no more tokens left.
*/
virtual std::string getNext() = 0;
};
// }}}
} // namespace fsa
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