1/*
2 * Copyright (c) 2015, Intel Corporation
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
6 *
7 * * Redistributions of source code must retain the above copyright notice,
8 * this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of Intel Corporation nor the names of its contributors
13 * may be used to endorse or promote products derived from this software
14 * without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29/** \file
30 * \brief Merge code for McClellan DFA.
31 */
32
33#ifndef RDFA_MERGE_H
34#define RDFA_MERGE_H
35
36#include <memory>
37#include <vector>
38
39namespace ue2 {
40
41class ReportManager;
42struct raw_dfa;
43struct Grey;
44
45/** \brief Attempts to merge two raw_dfas into one. */
46std::unique_ptr<raw_dfa> mergeTwoDfas(const raw_dfa *d1, const raw_dfa *d2,
47 size_t max_states, const ReportManager *rm,
48 const Grey &grey);
49
50/** \brief Attempts to merge all the given raw_dfas into one. */
51std::unique_ptr<raw_dfa> mergeAllDfas(const std::vector<const raw_dfa *> &dfas,
52 size_t max_states,
53 const ReportManager *rm,
54 const Grey &grey);
55
56/** \brief Merges the given list of raw_dfas as much as possible in-place. */
57void mergeDfas(std::vector<std::unique_ptr<raw_dfa>> &dfas, size_t max_states,
58 const ReportManager *rm, const Grey &grey);
59
60} // namespace ue2
61
62#endif // RDFA_MERGE_H
63