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/*
* Copyright (c) 2016-2020, 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.
*/
#ifndef SHENGCOMPILE_H
#define SHENGCOMPILE_H
#include "accel_dfa_build_strat.h"
#include "rdfa.h"
#include "util/bytecode_ptr.h"
#include "util/charreach.h"
#include "util/flat_containers.h"
#include <memory>
#include <set>
struct NFA;
namespace ue2 {
class ReportManager;
struct CompileContext;
struct raw_dfa;
class sheng_build_strat : public accel_dfa_build_strat {
public:
sheng_build_strat(raw_dfa &rdfa_in, const ReportManager &rm_in,
bool only_accel_init_in)
: accel_dfa_build_strat(rm_in, only_accel_init_in), rdfa(rdfa_in) {}
raw_dfa &get_raw() const override { return rdfa; }
std::unique_ptr<raw_report_info> gatherReports(
std::vector<u32> &reports /* out */,
std::vector<u32> &reports_eod /* out */,
u8 *isSingleReport /* out */,
ReportID *arbReport /* out */) const override;
size_t accelSize(void) const override;
u32 max_allowed_offset_accel() const override;
u32 max_stop_char() const override;
u32 max_floating_stop_char() const override;
DfaType getType() const override { return Sheng; }
private:
raw_dfa &rdfa;
};
bytecode_ptr<NFA> shengCompile(raw_dfa &raw, const CompileContext &cc,
const ReportManager &rm, bool only_accel_init,
std::set<dstate_id_t> *accel_states = nullptr);
bytecode_ptr<NFA> sheng32Compile(raw_dfa &raw, const CompileContext &cc,
const ReportManager &rm, bool only_accel_init,
std::set<dstate_id_t> *accel_states = nullptr);
bytecode_ptr<NFA> sheng64Compile(raw_dfa &raw, const CompileContext &cc,
const ReportManager &rm, bool only_accel_init,
std::set<dstate_id_t> *accel_states = nullptr);
struct sheng_escape_info {
CharReach outs;
CharReach outs2_single;
flat_set<std::pair<u8, u8>> outs2;
bool outs2_broken = false;
};
bool has_accel_sheng(const NFA *nfa);
} // namespace ue2
#endif /* SHENGCOMPILE_H */
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