public bool Iterate(Interpreter ii, RepeaterBlueprint bp)
{
if (Finished)
{
ii.PopRepeater();
return false;
}
// Queue the next iteration on the current state
ii.CurrentState.AddPreBlueprint(bp);
// Push separator if applicable
if (!IsLast && _attribs.Separator != null && _attribs.Separator.Any())
{
var sepState = Interpreter.State.CreateDerivedDistinct(
ii.CurrentState.Reader.Source,
_attribs.Separator,
ii,
ii.CurrentState.Output);
// Make sure that the repeater is not available to the separator pattern
sepState.AddPreBlueprint(new RepeaterStackBlueprint(ii, this, RepeaterStackAction.Pop));
sepState.AddPostBlueprint(new RepeaterStackBlueprint(ii, this, RepeaterStackAction.Push));
ii.PushState(sepState);
}
// Push postfix if applicable
if (_attribs.After != null && _attribs.After.Any())
{
ii.PushState(Interpreter.State.CreateDerivedDistinct(
ii.CurrentState.Reader.Source,
_attribs.After,
ii,
ii.CurrentState.Output));
}
// Push next item
var itemState = Interpreter.State.CreateDerivedDistinct(ii.CurrentState.Reader.Source,
_items[_attribs.Sync != null ? _attribs.Sync.NextItem(_items.Length) : ii.RNG.Next(_items.Length)],
ii,
ii.CurrentState.Output);
// Add a blueprint that iterates the repeater just before reading the item. This makes sure that tags like [first] can run before this happens.
itemState.AddPostBlueprint(new FunctionBlueprint(ii, _ =>
{
Next();
return false;
}));
ii.PushState(itemState);
// Push prefix if applicable
if (_attribs.Before != null && _attribs.Before.Any())
{
ii.PushState(Interpreter.State.CreateDerivedDistinct(
ii.CurrentState.Reader.Source,
_attribs.Before,
ii,
ii.CurrentState.Output));
}
return true;
}
