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 #ifndef _RE_COMPONENTEXTENDEDUNICODESEQUENCE_H_ 34 #define _RE_COMPONENTEXTENDEDUNICODESEQUENCE_H_ 35 36 #include "Component.h" 37 38 namespace ue2 { 39 40 struct ParseMode; 41 42 class ComponentEUS : public Component { 43 friend class DumpVisitor; 44 friend class UnsupportedVisitor; 45 public: 46 ComponentEUS(u32 loc, const ParseMode &mode); 47 ~ComponentEUS() override; 48 ComponentEUS *clone() const override; 49 accept(ComponentVisitor & v)50 Component *accept(ComponentVisitor &v) override { 51 Component *c = v.visit(this); 52 v.post(this); 53 return c; 54 } 55 accept(ConstComponentVisitor & v)56 void accept(ConstComponentVisitor &v) const override { 57 v.pre(*this); 58 v.during(*this); 59 v.post(*this); 60 } 61 62 std::vector<PositionInfo> first() const override; 63 std::vector<PositionInfo> last() const override; 64 empty()65 bool empty() const override { return false; } 66 67 void notePositions(GlushkovBuildState &bs) override; buildFollowSet(GlushkovBuildState &,const std::vector<PositionInfo> &)68 void buildFollowSet(GlushkovBuildState &, 69 const std::vector<PositionInfo> &) override { 70 // all follow set construction is handled by firsts/lasts 71 return; 72 } 73 74 private: 75 u32 loc; 76 bool utf8; 77 Position position; 78 ComponentEUS(const ComponentEUS & other)79 ComponentEUS(const ComponentEUS &other) 80 : Component(other), loc(other.loc), utf8(other.utf8), 81 position(other.position) {} 82 }; 83 84 } // namespace ue2 85 86 #endif 87