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/*
* Copyright (c) 2015, Intel Corporation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Intel Corporation nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/** \file
* \brief Build code for McClellan DFA.
*/
#ifndef NG_MCCLELLAN_H
#define NG_MCCLELLAN_H
#include "ue2common.h"
#include <memory>
#include <vector>
namespace ue2 {
class CharReach;
class NGHolder;
class ReportManager;
struct Grey;
struct raw_dfa;
/**
* \brief Determinises an NFA Graph into a raw_dfa.
*
* \param g
* The NGHolder.
* \param rm
* A pointer to the ReportManager, if managed reports are used (e.g.
* for outfixes/suffixes). Otherwise nullptr.
* \param single_trigger
* True if it is known that the nfa will only ever be trigger once.
* \param triggers
* Representing when tops may arrive. Only used by NFA_INFIX and
* NFA_SUFFIX, should be empty for other types.
* \param grey
* Grey box object.
* \param finalChance
* Allows us to build bigger DFAs as the only alternative is an outfix.
*
* \return A raw_dfa, or nullptr on failure (state limit blown).
*/
std::unique_ptr<raw_dfa> buildMcClellan(const NGHolder &g,
const ReportManager *rm, bool single_trigger,
const std::vector<std::vector<CharReach>> &triggers,
const Grey &grey, bool finalChance = false);
/** Convenience wrapper for non-triggered engines */
std::unique_ptr<raw_dfa> buildMcClellan(const NGHolder &g,
const ReportManager *rm,
const Grey &grey);
} // namespace ue2
#endif // NG_MCCLELLAN_H
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