@Override
public String visit(ISymbol e) throws IVisitor.VisitorException {
// Symbols do not necessarily have sorts - e.g. if they are function names
ISort sort = typemap.get(e);
if (!isFormula && sort != null && sort.isBool()) {
throw new VisitorException(
"Use of boolean in a term position is not yet implemented in the Simplify adapter",
e.pos()); // FIXME - booleans as terms
}
// Simplify does not allow tab, newline, cr in identifiers;
// these are allowed by SMTLIB.
// Note that neither simplify nor SMTLIB allows \ or |
// All other printable characters are allowed in both.
String oldName = e.value();
String newName = fcnNames.get(oldName);
if (newName != null) {
// There is a direct translation of a pre-defined SMT-LIB name
// into a simplify equivalent - use it.
} else {
// Use the ? character as an escape
newName =
oldName.replace("?", "??").replace("\n", "?n").replace("\r", "?r").replace("\t", "?t");
if (reservedWords.contains(newName)) {
newName = newName + "?!";
}
newName = "|" + newName + "|";
}
return newName;
}
/** Parses the arguments of the command, producing a new command instance */
public static /*@Nullable*/ C_declare_const parse(Parser p) throws ParserException {
/*@Nullable*/ ISymbol symbol = p.parseSymbol();
if (symbol == null) return null;
/*@Nullable*/ ISort result = p.parseSort(null);
if (result == null) return null;
String v = symbol.value();
if (v.length() > 0 && (v.charAt(0) == '@' || v.charAt(0) == '.')) {
error(p.smt(), "User-defined symbols may not begin with . or @", symbol.pos());
return null;
}
return new C_declare_const(symbol, result);
}
