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/********************* */
/*! \file strings_modes.h
** \verbatim
** Top contributors (to current version):
** Andres Noetzli
** This file is part of the CVC4 project.
** Copyright (c) 2009-2019 by the authors listed in the file AUTHORS
** in the top-level source directory) and their institutional affiliations.
** All rights reserved. See the file COPYING in the top-level source
** directory for licensing information.\endverbatim
**
** \brief Modes for the string solver.
**/
#include "cvc4_private.h"
#ifndef CVC4__THEORY__STRINGS__STRINGS_MODES_H
#define CVC4__THEORY__STRINGS__STRINGS_MODES_H
#include <iosfwd>
namespace CVC4 {
namespace theory {
namespace strings {
/** Enumeration of string processing loop modes */
enum ProcessLoopMode
{
/** Perform full loop processing. */
FULL,
/** Omit normal loop breaking. */
SIMPLE,
/** Abort if normal loop breaking is required. */
SIMPLE_ABORT,
/** Omit loop processing. */
NONE,
/** Abort if looping word equations are encountered. */
ABORT
}; // enum ProcessLoopMode
/** Enumeration of regular expression intersection modes */
enum RegExpInterMode
{
/** Compute intersections for all regular expressions. */
RE_INTER_ALL,
/**
* Compute intersections only for regular expressions without re.allchar
* and re.range.
*/
RE_INTER_CONSTANT,
/**
* Compute intersections only between regular expressions where one side does
* not contain re.allchar and re.range.
*/
RE_INTER_ONE_CONSTANT,
/** Do not compute intersections of regular expressions. */
RE_INTER_NONE,
}; // enum RegExpInterMode
} // namespace strings
} // namespace theory
std::ostream& operator<<(std::ostream& out,
theory::strings::ProcessLoopMode mode);
std::ostream& operator<<(std::ostream& out,
theory::strings::RegExpInterMode mode);
} // namespace CVC4
#endif /* CVC4__THEORY__STRINGS__STRINGS_MODES_H */
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