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/*
* Copyright (c) 2017-2018, 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 ExpressionInfo class for storing the properties of an expression.
*/
#ifndef COMPILER_EXPRESSION_INFO_H
#define COMPILER_EXPRESSION_INFO_H
#include "ue2common.h"
#include "som/som.h"
namespace ue2 {
/** \brief Properties of an expression. */
class ExpressionInfo {
public:
ExpressionInfo(unsigned int index_in, bool allow_vacuous_in,
bool highlander_in, bool utf8_in, bool prefilter_in,
som_type som_in, ReportID report_in, u64a min_offset_in,
u64a max_offset_in, u64a min_length_in, u32 edit_distance_in,
u32 hamm_distance_in, bool quiet_in)
: index(index_in), report(report_in), allow_vacuous(allow_vacuous_in),
highlander(highlander_in), utf8(utf8_in), prefilter(prefilter_in),
som(som_in), min_offset(min_offset_in), max_offset(max_offset_in),
min_length(min_length_in), edit_distance(edit_distance_in),
hamm_distance(hamm_distance_in), quiet(quiet_in) {}
/**
* \brief Index of the expression represented by this graph.
*
* Used:
* - down the track in error handling;
* - for identifying parts of an expression in highlander mode.
*/
unsigned int index;
/** \brief Report ID specified by the user. */
ReportID report;
/** \brief Vacuous pattern is allowed. (HS_FLAG_ALLOWEMPTY) */
bool allow_vacuous;
/** \brief "Highlander" (single match) pattern. (HS_FLAG_SINGLEMATCH) */
bool highlander;
/** \brief UTF-8 pattern. (HS_FLAG_UTF8) */
bool utf8;
/** \brief Prefiltering pattern. (HS_FLAG_PREFILTER) */
bool prefilter;
/** \brief Start-of-match type requested, or SOM_NONE. */
som_type som;
/** \brief Minimum match offset extended parameter. 0 if not used. */
u64a min_offset;
/**
* \brief Maximum match offset extended parameter.
* MAX_OFFSET if not used.
*/
u64a max_offset;
/** \brief Minimum match length extended parameter. 0 if not used. */
u64a min_length;
/**
* \brief Approximate matching edit distance extended parameter.
* 0 if not used.
*/
u32 edit_distance;
u32 hamm_distance;
/** \brief Quiet on match. */
bool quiet;
};
}
#endif // COMPILER_EXPRESSION_INFO_H
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