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(NotNode node)
{
var nodes = new LiteralNodeCollection();
for (var i = 32; i < 126; i++)
{
nodes.Add(NodeBuilder.BuildLiteralNode(TokenBuilder.BuildLiteralToken((char)i)));
}
INode current = node;
while (current.ChildNodes[0].Token.TokenType == TokenType.Concatenation)
{
current = node.ChildNodes[0];
}
foreach (var expandedNode in Expand(current))
{
if (nodes.Contains(expandedNode))
{
nodes.Remove(expandedNode);
}
}
var index = RandomNumberProvider.GetRandomNumber(0, nodes.Count);
nodes[index].Accept(this);
}
public void Visit(RangeNode node)
{
var min = (int)((LiteralNode)node.ChildNodes[0]).Token.Character;
var max = (int)((LiteralNode)node.ChildNodes[1]).Token.Character;
var index = RandomNumberProvider.GetRandomNumber(min, max + 1);
var literal = new LiteralNode(TokenBuilder.BuildLiteralToken((char)index));
literal.Accept(this);
}
public void Visit(RepetitionNode node)
{
var index = RandomNumberProvider.GetRandomNumber(node.Token.MinOccurs, node.Token.MaxOccurs > -1 ? node.Token.MaxOccurs + 1 : DefaultMaxOccurs);
for (var i = 0; i < index; i++)
{
foreach (var childNode in node.ChildNodes)
{
childNode.Accept(this);
}
}
}
public void Visit(AlternationNode node)
{
var index = RandomNumberProvider.GetRandomNumber(0, 2);
node.ChildNodes[index].Accept(this);
}