public ParsingState(ParsingGrammar grammar, ParsingRule rule, string text)
{
this.Grammar = grammar;
this.Text = text;
this.Position = 0;
this.Prev = null;
this.CurrentNodes = new ReadOnlyCollection <StringTreeNode>(new StringTreeNode[0]);
this.CurrentRule = rule;
this.Log = new IndentedWriter(" ");
this.Parent = new ParsingState(this, null, null, false);
this.Skipping = false;
}
public ParsingState(ParsingState prev, ParsingState parent, ParsingRule parsingRule, bool skipping)
{
this.Grammar = prev.Grammar;
this.Text = prev.Text;
this.Log = prev.Log;
this.Position = prev.Position;
this.Skipping = skipping;
this.Prev = prev;
this.CurrentNodes = new ReadOnlyCollection <StringTreeNode>(new StringTreeNode[0]);
this.CurrentRule = parsingRule;
this.Parent = parent;
}
private ParsingState(ParsingState prev, ParsingRule rule, ParsingState parent, int pos, bool skipping, IEnumerable <StringTreeNode> nodes)
{
this.Grammar = prev.Grammar;
this.Text = prev.Text;
this.Log = prev.Log;
this.Position = pos;
this.Skipping = skipping;
this.Prev = prev;
this.CurrentRule = rule;
this.CurrentNodes = new ReadOnlyCollection <StringTreeNode>(nodes.ToArray());
this.Parent = parent;
}
public ParsingState EnterRule(ParsingRule parsingRule, bool skipping)
{
if (this.Depth > 100)
{
throw new ApplicationException("Recursion guard");
}
// Console.WriteLine("enter in " + parsingRule.Name + " @" + this.Position);
return(new ParsingState(this, this, parsingRule, skipping)
{
Depth = this.Depth + 1
});
}