private void findTimesChar(ParsingContext context, CustomParserAction customAction)
{
string currentStr = context.CurrentParserInput.Term.Name;
Debug.WriteLine("findTimesChar: current Term = " + currentStr);
if (context.CurrentParserInput.Term == base.Eof)
{
return;
}
var scanner = context.Parser.Scanner;
ParserAction action;
scanner.BeginPreview();
Token preview = scanner.GetToken();
scanner.EndPreview(true);
string previewStr = preview.Terminal.Name;
Debug.WriteLine("findTimesChar: preview Term = " + previewStr);
if (currentStr.Equals("NUMBER") && previewStr.Equals("TIMES"))
{
action = customAction.ReduceActions.First();
}
else
{
action = customAction.ShiftActions.First(a => a.Term.Name == "NUMBER");
}
action.Execute(context);
}
public override void Apply(LanguageData language, LRItem owner)
{
//Create custom action and put it into state.Actions table
var state = owner.State;
var action = new CustomParserAction(language, state, _executeMethod);
_previewMethod?.Invoke(action);
if (!state.BuilderData.IsInadequate)
{
// adequate state, with a single possible action which is DefaultAction
state.DefaultAction = action;
}
else if (owner.Core.Current != null)
{
//shift action
state.Actions[owner.Core.Current] = action;
}
else
{
foreach (var lkh in owner.Lookaheads)
{
state.Actions[lkh] = action;
}
}
//We consider all conflicts handled by the action
state.BuilderData.Conflicts.Clear();
}
private void ResolveConflicts(ParsingContext context, CustomParserAction action)
{
}
