protected override object OnVariableCfGrammar(ASTNode node)
{
var name = VisitChild <Name>(node, 0);
var grammar = new RawGrammar(name.Text);
foreach (var subNode in node.Children.Skip(1))
{
if (subNode.Symbol.ID == LinguParser.ID.VariableGrammarOptions)
{
grammar.Options.AddRange(VisitChildren <Option>(subNode));
}
if (subNode.Symbol.ID == LinguParser.ID.VariableGrammarTerminals)
{
grammar.Terminals.AddRange(VisitChildren <TerminalRule>(subNode));
}
if (subNode.Symbol.ID == LinguParser.ID.VariableGrammarRules)
{
grammar.Nonterminals.AddRange(VisitChildren <NonterminalRule>(subNode));
}
}
return(grammar);
}
protected override object OnGrammar(INonterminalToken token)
{
Debug.Assert(token[0].Symbol.Id == LinguId.Identifier);
var grammar = new RawGrammar(token.Terminal(0).Value);
foreach (var section in token.Nonterminal(1).Children)
{
var children = Visit <IReadOnlyList <Symbol> >(section);
grammar.Options.AddRange(children.OfType <Option>());
grammar.Terminals.AddRange(children.OfType <TerminalRule>());
grammar.Nonterminals.AddRange(children.OfType <NonterminalRule>());
}
return(grammar);
}
public NonterminalBuilder(BuildGrammar buildGrammar, RawGrammar rawGrammar)
{
BuildGrammar = buildGrammar;
RawGrammar = rawGrammar;
ToDo = new Queue <(Nonterminal, IEnumerable <IExpression>)>();
}
public TerminalBuilder(BuildGrammar buildGrammar, RawGrammar rawGrammar)
{
BuildGrammar = buildGrammar;
RawGrammar = rawGrammar;
}
public GrammarBuilder(RawGrammar tree)
{
RawGrammar = tree;
BuildGrammar = new BuildGrammar(RawGrammar.Name);
}
