public void EmitEquation(TextWriter where, InvariantQuery <APC> invariantDB)
{
string head = parent.Head(); // bn(... )
StringBuilder bodyAsString = new StringBuilder();
foreach (string s in to.FormalParameters)
{
string actualParameter = renamings[s];
if (actualParameter == null)
{
actualParameter = s; // if it is not there, it means that it is not renamed, i.e. it is the identity
}
bodyAsString.Append(actualParameter + BenigniMain.SEPPARAM);
}
if (bodyAsString.Length > BenigniMain.SEPPARAM.Length)
{
bodyAsString.Remove(bodyAsString.Length - BenigniMain.SEPPARAM.Length, BenigniMain.SEPPARAM.Length); // remove the last ", "
}
else if (parent.Condition != null)
{ // no successors, so I just write down the parameters,
bodyAsString.Append(BenigniMain.FormalParametersAsString(parent.FormalParameters));
}
else
{
bodyAsString.Append(BenigniMain.EMPTY);
}
string succ = BenigniMain.BLOCKPREFIX + this.To.Block.Index;
string result = String.Format("{0} {1} {2}( {3} ) ", head, BenigniMain.TRANS, succ, bodyAsString.ToString());
string postState = invariantDB(this.To.Block.First);
if (parent.Condition != null) // Is there a condition on the rewriting rule?
{
result = String.Format("{0} | {1} -> 1", result, parent.Condition);
if (postState != null && postState.Length > 0)
{
result += string.Format(", {0}", postState);
}
}
else if (postState != null && postState.Length > 0)
{
result = String.Format("{0} | {1}", result, postState);
}
result = BenigniMain.SanitizeString(result);
// Here we output the equation
where.WriteLine(result);
}
private static string Initial(EquationBlock entry)
{
return(SanitizeString(String.Format(INITIAL, entry.Head())));
}