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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 Per-position flags used during Glushkov construction, PositionInfo class.
*/
#ifndef PARSER_POSITION_H
#define PARSER_POSITION_H
#include "ue2common.h"
#include <set>
namespace ue2 {
#define POS_FLAG_NOFLOAT (1 << 0) //!< don't wire to start-dotstar
#define POS_FLAG_MUST_FLOAT (1 << 1) //!< don't wire solely to start
#define POS_FLAG_FIDDLE_ACCEPT (1 << 2) //!< add a dot with an offset adjustment when wiring to accept
#define POS_FLAG_ASSERT_WORD_TO_NONWORD (1 << 3) //!< epsilon for word to nonword transition
#define POS_FLAG_ASSERT_NONWORD_TO_WORD (1 << 4) //!< epsilon for nonword to word transition
#define POS_FLAG_ASSERT_WORD_TO_WORD (1 << 5) //!< epsilon for word to word transition
#define POS_FLAG_ASSERT_NONWORD_TO_NONWORD (1 << 6) //!< epsilon for nonword to nonword transition
/** vertex created by cloning startDs, not considered part of the match.
* mirrors POS_FLAG_FIDDLE_ACCEPT */
#define POS_FLAG_VIRTUAL_START (1 << 7)
/** multi-line ^ does not match \\n at end of buffer. As a result, we must never
* wire the \\n from ^ to eod */
#define POS_FLAG_MULTILINE_START (1 << 8)
#define POS_FLAG_ASSERT_WORD_TO_NONWORD_UCP (1 << 9)
#define POS_FLAG_ASSERT_NONWORD_TO_WORD_UCP (1 << 10)
#define POS_FLAG_ASSERT_WORD_TO_WORD_UCP (1 << 11)
#define POS_FLAG_ASSERT_NONWORD_TO_NONWORD_UCP (1 << 12)
#define POS_FLAG_ASSERT_NONWORD_TO_ANY (POS_FLAG_ASSERT_NONWORD_TO_NONWORD \
| POS_FLAG_ASSERT_NONWORD_TO_WORD)
#define POS_FLAG_ASSERT_WORD_TO_ANY (POS_FLAG_ASSERT_WORD_TO_NONWORD \
| POS_FLAG_ASSERT_WORD_TO_WORD)
#define POS_FLAG_ASSERT_ANY_TO_NONWORD (POS_FLAG_ASSERT_NONWORD_TO_NONWORD \
| POS_FLAG_ASSERT_WORD_TO_NONWORD)
#define POS_FLAG_ASSERT_ANY_TO_WORD (POS_FLAG_ASSERT_NONWORD_TO_WORD \
| POS_FLAG_ASSERT_WORD_TO_WORD)
#define POS_FLAG_ASSERT_NONWORD_TO_ANY_UCP \
(POS_FLAG_ASSERT_NONWORD_TO_NONWORD_UCP \
| POS_FLAG_ASSERT_NONWORD_TO_WORD_UCP)
#define POS_FLAG_ASSERT_WORD_TO_ANY_UCP (POS_FLAG_ASSERT_WORD_TO_NONWORD_UCP \
| POS_FLAG_ASSERT_WORD_TO_WORD_UCP)
#define POS_FLAG_ASSERT_ANY_TO_NONWORD_UCP \
(POS_FLAG_ASSERT_NONWORD_TO_NONWORD_UCP \
| POS_FLAG_ASSERT_WORD_TO_NONWORD_UCP)
#define POS_FLAG_ASSERT_ANY_TO_WORD_UCP (POS_FLAG_ASSERT_WORD_TO_WORD_UCP \
| POS_FLAG_ASSERT_NONWORD_TO_WORD_UCP)
#define UCP_ASSERT_FLAGS (POS_FLAG_ASSERT_WORD_TO_ANY_UCP \
| POS_FLAG_ASSERT_NONWORD_TO_ANY_UCP)
#define NON_UCP_ASSERT_FLAGS (POS_FLAG_ASSERT_WORD_TO_ANY \
| POS_FLAG_ASSERT_NONWORD_TO_ANY)
/** do not wire to accept or other pos; may still wire to eod, etc if
* instructed */
#define POS_FLAG_ONLY_ENDS (1 << 23)
#define POS_FLAG_WIRE_EOD (1 << 24) /**< wire to accept eod */
#define POS_FLAG_WIRE_NL_EOD (1 << 25) /**< wire to nl before accept eod */
#define POS_FLAG_WIRE_NL_ACCEPT (1 << 26) /**< wire to nl before accept */
#define POS_FLAG_NO_NL_EOD (1 << 27) /**< disallow nl before accept eod */
#define POS_FLAG_NO_NL_ACCEPT (1 << 28) /**< disallow nl before accept */
/** \brief Parse and Glushkov construction use only. State number within the
* NFA as it is being constructed. */
typedef u32 Position;
} // namespace ue2
#endif // PARSER_POSITION_H
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