public void Visit(BracketNode node)
{
if (node.ChildNodes[0].Token.TokenType == TokenType.Not)
{
node.ChildNodes[0].Accept(this);
return;
}
INode current = node;
while (current.ChildNodes[0].Token.TokenType == TokenType.Concatenation)
{
current = node.ChildNodes[0];
}
var nodes = new LiteralNodeCollection();
foreach (var expandedNode in Expand(current))
{
if (nodes.Contains(expandedNode) == false)
{
nodes.Add(expandedNode);
}
}
var index = RandomNumberProvider.GetRandomNumber(0, nodes.Count);
nodes[index].Accept(this);
}
public void Visit(BracketNode node)
{
var tab = GetTab(_level);
_builder.AppendFormat("{0}<{1}>{2}", tab, "set", _lr);
_level++;
foreach (var childNode in node.ChildNodes)
{
childNode.Accept(this);
}
_level--;
_builder.AppendFormat("{0}</{1}>{2}", tab, "set", _lr);
}
public void Visit(BracketNode node)
{
var tab = GetTab(_level);
_builder.AppendFormat("{0}<{1}>{2}", tab, "set", _lr);
_level++;
foreach (var childNode in node.ChildNodes)
{
childNode.Accept(this);
}
_level--;
_builder.AppendFormat("{0}</{1}>{2}", tab, "set", _lr);
}
public void Handle(Parser context)
{
var token = context.Current;
switch (token.TokenType)
{
case TokenType.Literal:
var literal = (LiteralToken)token;
INode literalNode = new LiteralNode(literal);
AddOperand(literalNode);
break;
case TokenType.Repetition:
var repetition = (RepetitionToken)token;
INode repetitionNode = new RepetitionNode(repetition);
AddOperator(repetitionNode);
break;
case TokenType.ParenthesisLeft:
context.ToState(new ParseState());
break;
case TokenType.ParenthesisRight:
var paranthesis = (ParenthesisRightToken)token;
INode paranthesisRightNode = new ParenthesisNode(paranthesis);
AddOperator(paranthesisRightNode);
context.EndState();
break;
case TokenType.Alternation:
var alternation = (AlternationToken)token;
INode alternationNode = new AlternationNode(alternation);
AddOperator(alternationNode);
break;
case TokenType.Range:
var range = (RangeToken)token;
INode rangeNode = new RangeNode(range);
AddOperator(rangeNode);
break;
case TokenType.BracketLeft:
context.ToState(new ParseState());
break;
case TokenType.BracketRight:
var set = (BracketRightToken)token;
INode setNode = new BracketNode(set);
AddOperator(setNode);
context.EndState();
break;
case TokenType.Any:
var anyNode = NodeBuilder.BuildAnyNode();
AddOperand(anyNode);
break;
case TokenType.Not:
var not = (NotToken)token;
INode notNode = new NotNode(not);
AddOperator(notNode);
break;
case TokenType.Numeric:
var numeric = (NumericToken)token;
INode numericNode = NodeBuilder.BuildNumericNode();
AddOperand(numericNode);
break;
case TokenType.Word:
var word = (WordToken)token;
INode wordNode = NodeBuilder.BuildWordNode();
AddOperand(wordNode);
break;
case TokenType.Whitespace:
var whitespace = (WhitespaceToken)token;
INode whitespaceNode = NodeBuilder.BuildWhitespaceNode();
AddOperand(whitespaceNode);
break;
case TokenType.NonNumeric:
var nonNumeric = (NonNumericToken)token;
INode nonNumericNode = NodeBuilder.BuildNonNumericNode();
AddOperand(nonNumericNode);
break;
case TokenType.NonWord:
var nonWord = (NonWordToken)token;
INode nonWordNode = NodeBuilder.BuildNonWordNode();
AddOperand(nonWordNode);
break;
case TokenType.NonWhitespace:
var nonWhitespace = (NonWhitespaceToken)token;
INode nonWhitespaceNode = NodeBuilder.BuildNonWhitespaceNode();
AddOperand(nonWhitespaceNode);
break;
default:
break;
}
}
public void Handle(Parser context)
{
var token = context.Current;
switch (token.TokenType)
{
case TokenType.Literal:
var literal = (LiteralToken)token;
INode literalNode = new LiteralNode(literal);
AddOperand(literalNode);
break;
case TokenType.Repetition:
var repetition = (RepetitionToken)token;
INode repetitionNode = new RepetitionNode(repetition);
AddOperator(repetitionNode);
break;
case TokenType.ParenthesisLeft:
context.ToState(new ParseState());
break;
case TokenType.ParenthesisRight:
var paranthesis = (ParenthesisRightToken)token;
INode paranthesisRightNode = new ParenthesisNode(paranthesis);
AddOperator(paranthesisRightNode);
context.EndState();
break;
case TokenType.Alternation:
var alternation = (AlternationToken)token;
INode alternationNode = new AlternationNode(alternation);
AddOperator(alternationNode);
break;
case TokenType.Range:
var range = (RangeToken)token;
INode rangeNode = new RangeNode(range);
AddOperator(rangeNode);
break;
case TokenType.BracketLeft:
context.ToState(new ParseState());
break;
case TokenType.BracketRight:
var set = (BracketRightToken)token;
INode setNode = new BracketNode(set);
AddOperator(setNode);
context.EndState();
break;
case TokenType.Any:
var anyNode = NodeBuilder.BuildAnyNode();
AddOperand(anyNode);
break;
case TokenType.Not:
var not = (NotToken)token;
INode notNode = new NotNode(not);
AddOperator(notNode);
break;
case TokenType.Numeric:
var numeric = (NumericToken)token;
INode numericNode = NodeBuilder.BuildNumericNode();
AddOperand(numericNode);
break;
case TokenType.Word:
var word = (WordToken)token;
INode wordNode = NodeBuilder.BuildWordNode();
AddOperand(wordNode);
break;
case TokenType.Whitespace:
var whitespace = (WhitespaceToken)token;
INode whitespaceNode = NodeBuilder.BuildWhitespaceNode();
AddOperand(whitespaceNode);
break;
case TokenType.NonNumeric:
var nonNumeric = (NonNumericToken)token;
INode nonNumericNode = NodeBuilder.BuildNonNumericNode();
AddOperand(nonNumericNode);
break;
case TokenType.NonWord:
var nonWord = (NonWordToken)token;
INode nonWordNode = NodeBuilder.BuildNonWordNode();
AddOperand(nonWordNode);
break;
case TokenType.NonWhitespace:
var nonWhitespace = (NonWhitespaceToken)token;
INode nonWhitespaceNode = NodeBuilder.BuildNonWhitespaceNode();
AddOperand(nonWhitespaceNode);
break;
default:
break;
}
}
