difflogblock.h

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/*
 * Copyright (C) 2019 Ondrej Starek
 *
 * This file is part of OTest2.
 *
 * OTest2 is free software: you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License,
 * or (at your option) any later version.
 *
 * OTest2 is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
 * License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with OTest2.  If not, see <http://www.gnu.org/licenses/>.
 */
 
#ifndef OTest2__LIB_DIFFLOGBLOCK_H_
#define OTest2__LIB_DIFFLOGBLOCK_H_
 
#include <vector>
 
#include <otest2/hirschberg.h>
 
namespace OTest2 {
 
struct DiffBlock {
    int left_begin;
    int left_end;
    int right_begin;
    int right_end;
};
 
typedef std::vector<DiffBlock> DiffLogBlocks;
 
class DiffLogBuilderBlock : public DiffLogBuilder {
  private:
    DiffLogBlocks* blocks;
    bool opened_block;
    int curr_left;
    int curr_right;
 
    void openBlock();
 
  public:
    explicit DiffLogBuilderBlock(
        DiffLogBlocks* blocks_);
 
    virtual ~DiffLogBuilderBlock();
 
    /* -- avoid copying */
    DiffLogBuilderBlock(
        const DiffLogBuilderBlock&) = delete;
    DiffLogBuilderBlock& operator =(
        const DiffLogBuilderBlock&) = delete;
 
    /* -- diff log builder interface */
    virtual void addMatch(
        int left_index_,
        int right_index_);
    virtual void addChange(
        int left_index_,
        int right_index_);
    virtual void addDelete(
        int right_index_);
    virtual void addInsert(
        int left_index_);
};
 
} /* namespace OTest2 */
 
#endif /* OTest2__LIB_DIFFLOGBLOCK_H_ */