public bool IsValid(IParserImmutableContext context)
{
var stream = new MemoryStream().FromString(this.RulePattern);
var lexer = LexerBuilder.DefaultAstLexer;
var tree = new AstTree.AstTree(lexer.Parse(stream));
this._tree = tree;
return(this.TokenConvertionPattern.Childs.Values.Max() <= tree.NodeCount);
}
public bool Check(Stream stream)
{
this.ChekedString = Empty;
if (this._tree == null)
{
var ruleStream = new MemoryStream().FromString(this.RulePattern);
this._tree = new AstTree.AstTree(LexerBuilder.DefaultAstLexer.Parse(ruleStream));
}
var result = false;
try {
result = this._tree.Check(stream);
}
catch {
result = false;
}
this.ChekedString = this._tree.ParsedResult;
return(result);
}