public static string ToString(VCExpr e, UniqueNamer namer, TPTPProverOptions opts)
{
Contract.Requires(e != null);
Contract.Requires(namer != null);
Contract.Ensures(Contract.Result <string>() != null);
StringWriter sw = new StringWriter();
TPTPExprLineariser lin = new TPTPExprLineariser(sw, namer, opts);
Contract.Assert(lin != null);
lin.Linearise(e, LineariserOptions.Default);
return(cce.NonNull(sw.ToString()));
}
private void WriteApplication(string termOp,
IEnumerable <VCExpr> /*!>!*/ args, LineariserOptions options,
// change the AsTerm option for the arguments?
bool argsAsTerms)
{
Contract.Requires(termOp != null);
Contract.Requires(cce.NonNullElements(args));
Contract.Requires(options != null);
LineariserOptions newOptions = options.SetAsTerm(argsAsTerms);
Contract.Assert(newOptions != null);
var argCnt = 0;
if (termOp == "~")
{
wr.Write("(~ ");
foreach (var e in args)
{
ExprLineariser.Linearise(e, newOptions);
argCnt++;
}
Contract.Assert(argCnt == 1);
wr.Write(")");
}
else if ("&|~=><".IndexOf(termOp[0]) >= 0)
{
wr.Write("(");
foreach (var e in args)
{
ExprLineariser.Linearise(e, newOptions);
argCnt++;
if (argCnt == 1)
{
wr.Write(" {0} ", termOp);
}
}
Contract.Assert(argCnt == 2);
wr.Write(")");
}
else
{
wr.Write(termOp);
foreach (var e in args)
{
Contract.Assert(e != null);
if (argCnt == 0)
{
wr.Write("(");
}
else
{
wr.Write(", ");
}
argCnt++;
ExprLineariser.Linearise(e, newOptions);
}
if (argCnt > 0)
{
wr.Write(")");
}
}
}