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/*
* Copyright (c) 2015, Intel Corporation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Intel Corporation nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/** \file
* \brief Character class in UTF-8 mode.
*/
#ifndef UTF8_COMPONENT_CLASS_H
#define UTF8_COMPONENT_CLASS_H
#include "ComponentClass.h"
#include "ue2common.h"
#include "util/unicode_set.h"
#include <map>
#include <set>
#include <string>
#include <vector>
namespace ue2 {
class UTF8ComponentClass : public ComponentClass {
friend class DumpVisitor;
friend class PrintVisitor;
friend class CaselessVisitor;
friend class SimplifyVisitor;
friend class SimplifyCandidatesVisitor;
public:
explicit UTF8ComponentClass(const ParseMode &mode);
~UTF8ComponentClass() override {}
UTF8ComponentClass *clone() const override;
Component *accept(ComponentVisitor &v) override {
Component *c = v.visit(this);
v.post(this);
return c;
}
void accept(ConstComponentVisitor &v) const override {
v.pre(*this);
v.during(*this);
v.post(*this);
}
bool class_empty(void) const override;
void add(PredefinedClass c, bool negative) override;
void add(unichar c) override;
void finalize(void) override;
void notePositions(GlushkovBuildState &bs) override;
void buildFollowSet(GlushkovBuildState &bs,
const std::vector<PositionInfo> &) override;
std::vector<PositionInfo> first(void) const override;
std::vector<PositionInfo> last(void) const override;
protected:
void createRange(unichar to) override;
private:
Position getHead(NFABuilder &builder, u8 first_byte);
void addToTail(GlushkovBuildState &bs, std::map<Position, Position> &finals,
Position prev, unichar b, unichar e);
void ensureDotTrailer(GlushkovBuildState &bs);
void ensureTwoDotTrailer(GlushkovBuildState &bs);
void ensureThreeDotTrailer(GlushkovBuildState &bs);
void buildOneByte(GlushkovBuildState &bs);
void buildTwoByte(GlushkovBuildState &bs);
void buildThreeByte(GlushkovBuildState &bs);
void buildFourByte(GlushkovBuildState &bs);
CodePointSet cps;
std::map<u8, Position> heads;
Position single_pos;
Position one_dot_trailer;
Position two_dot_trailer;
Position three_dot_trailer;
Position two_char_dot_head;
Position three_char_dot_head;
Position four_char_dot_head;
std::set<Position> tails;
};
PredefinedClass translateForUcpMode(PredefinedClass in, const ParseMode &mode);
CodePointSet getPredefinedCodePointSet(PredefinedClass c,
const ParseMode &mode);
} // namespace
#endif // UTF8_COMPONENT_CLASS_H
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