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 #ifndef _RE_COMPONENTBACKREFERENCE_H_ 34 #define _RE_COMPONENTBACKREFERENCE_H_ 35 36 #include "Component.h" 37 #include <string> 38 39 namespace ue2 { 40 41 class ComponentBackReference : public Component { 42 friend class DumpVisitor; 43 friend class PrintVisitor; 44 friend class ReferenceVisitor; 45 public: 46 explicit ComponentBackReference(unsigned int id); 47 explicit ComponentBackReference(const std::string &s); ~ComponentBackReference()48 ~ComponentBackReference() override {} 49 ComponentBackReference *clone() const override; 50 accept(ComponentVisitor & v)51 Component *accept(ComponentVisitor &v) override { 52 Component *c = v.visit(this); 53 v.post(this); 54 return c; 55 } 56 accept(ConstComponentVisitor & v)57 void accept(ConstComponentVisitor &v) const override { 58 v.pre(*this); 59 v.during(*this); 60 v.post(*this); 61 } 62 getRefID()63 unsigned int getRefID() const { return ref_id; } getRefName()64 const std::string &getRefName() const { return name; } 65 66 std::vector<PositionInfo> first() const override; 67 std::vector<PositionInfo> last() const override; 68 bool empty(void) const override; 69 void notePositions(GlushkovBuildState &bs) override; 70 void buildFollowSet(GlushkovBuildState &bs, 71 const std::vector<PositionInfo> &lastPos) override; 72 73 private: 74 // Private copy ctor. Use clone instead. ComponentBackReference(const ComponentBackReference & other)75 ComponentBackReference(const ComponentBackReference &other) 76 : Component(other), name(other.name), ref_id(other.ref_id) {} 77 78 std::string name; 79 unsigned int ref_id; 80 }; 81 82 } // namespace ue2 83 84 #endif 85