public ArcStandardConfig(Sent sent, bool reserve, RandomNumberGenerator rng)
{
_sent = sent;
Stack = new ParseForest();
Stack.PushBack(Entry.Root());
Buffer = new ParseForest(sent, reserve);
Apply(Op.shift, null);
_rng = rng;
}
// ExtensionMethods /////////////////////////
public static string PrintPyramid(this ParseForest tree, bool force = false)
{
string retval = Environment.NewLine;
ParseTreeNode[, ,] P = tree.P;
int n = tree.n, r = tree.r;
for (int k = n - 1; k >= 0; k--)
{
foreach (int i in 1.to(n - k))
{
retval += "\t";
//string retval = "";
foreach (int nonterminals in 1.to(r))
{
NonTerminalSymbol nt = (NonTerminalSymbol)nonterminals;
if (P[i, k, nonterminals].match && nt != NonTerminalSymbol.comma)
{
retval += (retval == "" ? "" : ",") + (nt == NonTerminalSymbol.colon ? ":" : nt.ToString());
}
}
retval += (retval.Length > 10 ? "*" : retval);
}
retval += Environment.NewLine;
}
foreach (int i in 1.to(n))
{
retval += ("\t" + tree.a[i]);
}
retval += Environment.NewLine;
// is valid?
if (tree.Count == 0)
{
retval += Environment.NewLine;
}
else if (tree.Count == 1)
{
retval += "IS a member of language as a " + tree.SentenceType.ToString();
}
else
{
retval += "is a member of language but ambiguous, with" + tree.Count + " interpretations";
}
return(retval);
}
