/// <summary>
/// Iterate of parsing for the rule.
/// </summary>
/// <param name="iterate">Current iterate</param>
/// <returns>Next iterate</returns>
public IEnumerable<SyntacticParseIterateResult> Parse(SyntacticParseIterateResult iterate)
{
if (!iterate.NodeTypes.Any())
{
return Enumerable.Repeat(iterate, 1);
}
var nodeType = iterate.NodeTypes.First();
return nodeType.Parse(iterate.TokenNodes, this)
.Select(res => new SyntacticParseIterateResult(
iterate.Nodes.Concat(Enumerable.Repeat(res.Node, 1)),
iterate.NodeTypes.Skip(1), res.TokenNodes))
.SelectMany(it => Parse(it));
}
public void Parse_EmptyNodeTypes_SingleIterate()
{
var iterate = new SyntacticParseIterateResult(
Enumerable.Empty<ISyntacticNode>(),
Enumerable.Empty<ISyntacticNodeType>(),
Enumerable.Empty<TokenSyntacticNode>());
var rules = Enumerable.Empty<IBlock>();
var analyzer = new SyntacticAnalyzer(rules);
var result = analyzer.Parse(iterate).ToArray();
Assert.That(result.Count(),Is.EqualTo(1));
Assert.That(result.First(), Is.EqualTo(iterate));
}