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/****************************************************************************** |
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* Top contributors (to current version): |
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* Tim King, Andres Noetzli, Morgan Deters |
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* |
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* This file is part of the cvc5 project. |
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* |
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* Copyright (c) 2009-2021 by the authors listed in the file AUTHORS |
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* in the top-level source directory and their institutional affiliations. |
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* All rights reserved. See the file COPYING in the top-level source |
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* directory for licensing information. |
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* **************************************************************************** |
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* |
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* Quotes a string if necessary for smt2. |
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*/ |
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#include "util/smt2_quote_string.h" |
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#include <sstream> |
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#include <string> |
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namespace cvc5 { |
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/** |
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* SMT-LIB 2 quoting for symbols |
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*/ |
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std::string quoteSymbol(const std::string& s){ |
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// this is the set of SMT-LIBv2 permitted characters in "simple" (non-quoted) |
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// symbols |
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if (s.find_first_not_of("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz" |
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"0123456789~!@$%^&*_-+=<>.?/") |
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!= std::string::npos |
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|| s.empty() || (s[0] >= '0' && s[0] <= '9')) |
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{ |
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std::string tmp(s); |
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// must quote the symbol, but it cannot contain | or \, we turn those into _ |
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size_t p; |
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while((p = tmp.find_first_of("\\|")) != std::string::npos) { |
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tmp = tmp.replace(p, 1, "_"); |
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} |
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return "|" + tmp + "|"; |
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} |
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return s; |
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} |
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} // namespace cvc5 |