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 Back-references (/([a-f]{3}).*\\1/)
31 */
32
33
34 #include "ComponentBackReference.h"
35
36 #include "buildstate.h"
37 #include "position.h"
38 #include "position_info.h"
39 #include "nfagraph/ng_builder.h"
40 #include "util/charreach.h"
41
42 #include <cassert>
43
44 using namespace std;
45
46 namespace ue2 {
47
ComponentBackReference(unsigned int id)48 ComponentBackReference::ComponentBackReference(unsigned int id)
49 : ref_id(id) {}
50
ComponentBackReference(const string & s)51 ComponentBackReference::ComponentBackReference(const string &s)
52 : name(s), ref_id(0) {}
53
clone() const54 ComponentBackReference * ComponentBackReference::clone() const {
55 return new ComponentBackReference(*this);
56 }
57
first() const58 vector<PositionInfo> ComponentBackReference::first() const {
59 assert(0);
60 return vector<PositionInfo>();
61 }
62
last() const63 vector<PositionInfo> ComponentBackReference::last() const {
64 assert(0);
65 return vector<PositionInfo>();
66 }
67
empty(void) const68 bool ComponentBackReference::empty(void) const { return true; }
69
notePositions(GlushkovBuildState &)70 void ComponentBackReference::notePositions(GlushkovBuildState &) {
71 assert(0);
72 }
73
buildFollowSet(GlushkovBuildState &,const vector<PositionInfo> &)74 void ComponentBackReference::buildFollowSet(GlushkovBuildState &,
75 const vector<PositionInfo> &) {
76 assert(0);
77 }
78
79 } // namespace
80