BnfNonterminal Convert(EbnfNonterminal E)
{
BnfNonterminal B = null;
if (nonterminalConversions.ContainsKey(E))
{
var footprint = nonterminalConversions [E];
B = footprint.After;
}
else
{
B = Bnf.AddNonterminal(E.Name);
var footprint = new NonterminalConversionFootprint(E, B);
nonterminalConversions.Add(E, footprint);
}
return(B);
}
public static EbnfGrammar Test2()
{
EbnfNonterminal S = new EbnfNonterminal(nameof(S));
EbnfNonterminal A = new EbnfNonterminal(nameof(A));
EbnfTerminal a = new EbnfTerminal(nameof(a));
EbnfTerminal b = new EbnfTerminal(nameof(b));
EbnfTerminal c = new EbnfTerminal(nameof(c));
EbnfTerminal d = new EbnfTerminal(nameof(d));
var rule1 = new EbnfRule(S, new EbnfEnumeration(new IEbnfEnumerationPart [] { c, A, d }));
var rule2 = new EbnfRule(A, new EbnfEnumeration(new IEbnfEnumerationPart [] { a, b }));
var rule3 = new EbnfRule(A, new EbnfEnumeration(new IEbnfEnumerationPart [] { a }));
var G = new EbnfGrammar();
G.Add(rule1);
G.Add(rule2);
G.Add(rule3);
return(G);
}
public EbnfRule(EbnfNonterminal nt, IEbnfRuleRightPart rightPart)
{
nonterminal = nt;
p = rightPart;
}
