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63 lines
2.4 KiB
C++
63 lines
2.4 KiB
C++
/*
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* Copyright (c) 2015-2016, Intel Corporation
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of Intel Corporation nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef MCCLELLAN_COMPILE_UTIL_H
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#define MCCLELLAN_COMPILE_UTIL_H
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#include "rdfa.h"
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#include "ue2common.h"
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#include <set>
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namespace ue2 {
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u32 remove_leading_dots(raw_dfa &raw);
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/**
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* Prunes any states which cannot be reached within max_offset from start of
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* stream. Returns false if no changes are made to the rdfa
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*/
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bool prune_overlong(raw_dfa &raw, u32 max_offset);
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std::set<ReportID> all_reports(const raw_dfa &rdfa);
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bool has_eod_accepts(const raw_dfa &rdfa);
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bool has_non_eod_accepts(const raw_dfa &rdfa);
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/** \brief Compute a simple hash of this raw_dfa. Does not include report
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* information. */
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size_t hash_dfa_no_reports(const raw_dfa &rdfa);
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/** \brief Compute a simple hash of this raw_dfa, including its reports. */
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size_t hash_dfa(const raw_dfa &rdfa);
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bool can_die_early(const raw_dfa &raw, u32 age_limit);
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} // namespace ue2
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#endif
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