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/******************************************************************************
* Top contributors (to current version):
* Andrew Reynolds, Mathias Preiner, Aina Niemetz
*
* This file is part of the cvc5 project.
*
* Copyright (c) 2009-2021 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.
* ****************************************************************************
*
* Data structures for regular expression operators.
*/
#include "cvc5_public.h"
#ifndef CVC5__UTIL__REGEXP_H
#define CVC5__UTIL__REGEXP_H
#include <iosfwd>
namespace cvc5 {
struct RegExpRepeat
{
RegExpRepeat(uint32_t repeatAmount);
bool operator==(const RegExpRepeat& r) const;
/** The amount of repetitions of the regular expression */
uint32_t d_repeatAmount;
};
struct RegExpLoop
{
RegExpLoop(uint32_t l, uint32_t h);
bool operator==(const RegExpLoop& r) const;
/** The minimum number of repetitions of the regular expression */
uint32_t d_loopMinOcc;
/** The maximum number of repetitions of the regular expression */
uint32_t d_loopMaxOcc;
};
/* -----------------------------------------------------------------------
* Hash Function structs
* ----------------------------------------------------------------------- */
/*
* Hash function for the RegExpRepeat constants.
*/
struct RegExpRepeatHashFunction
{
size_t operator()(const RegExpRepeat& r) const;
};
/**
* Hash function for the RegExpLoop objects.
*/
struct RegExpLoopHashFunction
{
size_t operator()(const RegExpLoop& r) const;
};
/* -----------------------------------------------------------------------
* Output stream
* ----------------------------------------------------------------------- */
std::ostream& operator<<(std::ostream& os, const RegExpRepeat& bv);
std::ostream& operator<<(std::ostream& os, const RegExpLoop& bv);
} // namespace cvc5
#endif /* CVC5__UTIL__REGEXP_H */
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