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/******************************************************************************
* Top contributors (to current version):
* Tim King, Andres Noetzli, Morgan Deters
*
* 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.
* ****************************************************************************
*
* Quotes a string if necessary for smt2.
*/
#include "util/smt2_quote_string.h"
#include <sstream>
#include <string>
namespace cvc5 {
/**
* SMT-LIB 2 quoting for symbols
*/
std::string quoteSymbol(const std::string& s){
// this is the set of SMT-LIBv2 permitted characters in "simple" (non-quoted)
// symbols
if (s.find_first_not_of("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
"0123456789~!@$%^&*_-+=<>.?/")
!= std::string::npos
|| s.empty() || (s[0] >= '0' && s[0] <= '9'))
{
std::string tmp(s);
// must quote the symbol, but it cannot contain | or \, we turn those into _
size_t p;
while((p = tmp.find_first_of("\\|")) != std::string::npos) {
tmp = tmp.replace(p, 1, "_");
}
return "|" + tmp + "|";
}
return s;
}
} // namespace cvc5
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