mirror of
https://github.com/VectorCamp/vectorscan.git
synced 2025-07-12 21:44:44 +03:00
82 lines
3.0 KiB
C++
82 lines
3.0 KiB
C++
/*
|
|
* 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
|