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 Extended Unicode sequences (\\X)
31 */
32
33
34 #include "ComponentEUS.h"
35
36 #include "buildstate.h"
37 #include "position.h"
38 #include "position_info.h"
39 #include "Parser.h"
40 #include "nfagraph/ng_builder.h"
41 #include "util/charreach.h"
42
43 using namespace std;
44
45 namespace ue2 {
46
ComponentEUS(u32 loc_in,const ParseMode & mode)47 ComponentEUS::ComponentEUS(u32 loc_in, const ParseMode &mode)
48 : loc(loc_in), utf8(mode.utf8),
49 position(GlushkovBuildState::POS_UNINITIALIZED) {}
50
~ComponentEUS()51 ComponentEUS::~ComponentEUS() {}
52
clone() const53 ComponentEUS * ComponentEUS::clone() const {
54 return new ComponentEUS(*this);
55 }
56
first() const57 vector<PositionInfo> ComponentEUS::first() const {
58 return vector<PositionInfo>(1, PositionInfo(position));
59 }
60
last() const61 vector<PositionInfo> ComponentEUS::last() const {
62 return vector<PositionInfo>(1, PositionInfo(position));
63 }
64
notePositions(GlushkovBuildState & bs)65 void ComponentEUS::notePositions(GlushkovBuildState &bs) {
66 NFABuilder &builder = bs.getBuilder();
67 position = builder.makePositions(1);
68 builder.addCharReach(position, CharReach::dot());
69 builder.setNodeReportID(position, 0 /* offset adj */);
70 if (utf8) { /* we are prefiltering, turn to.+ */
71 builder.addEdge(position, position);
72 }
73 }
74
75 } // namespace ue2
76