/// <summary>
/// Attach a semantic tag to word. If the word is a rule ref then an
/// epsilon transition must be created
/// </summary>
internal void AddSemanticInterpretationTag(CfgGrammar.CfgProperty propertyInfo)
{
// If the word is a rule ref, an epsilon transition must be created
if (_endArc != null && _endArc.RuleRef != null)
{
Arc tagTransition = _backend.EpsilonTransition(1.0f);
_backend.AddSemanticInterpretationTag(tagTransition, propertyInfo);
// Create a new state
State state = _backend.CreateNewState(_rule);
// Connect the new state with the end arc
tagTransition.Start = state;
_endArc.End = state;
_endArc = tagTransition;
}
else
{
if (_startArc == null)
{
_startArc = _endArc = _backend.EpsilonTransition(1.0f);
}
_backend.AddSemanticInterpretationTag(_endArc, propertyInfo);
}
}
// must add the rule Id
// _propInfo._ulId = (uint) ((ParseElement) parent).StartState._rule._iSerialize2;
internal void AddSementicPropertyTag(CfgGrammar.CfgProperty propertyInfo)
{
if (_startArc == null)
{
_startArc = _endArc = _backend.EpsilonTransition(1.0f);
}
_backend.AddPropertyTag(_startArc, _endArc, propertyInfo);
}
internal void AddSemanticInterpretationTag(CfgGrammar.CfgProperty propertyInfo)
{
if (_endArc != null && _endArc.RuleRef != null)
{
Arc arc = _backend.EpsilonTransition(1f);
_backend.AddSemanticInterpretationTag(arc, propertyInfo);
State end = arc.Start = _backend.CreateNewState(_rule);
_endArc.End = end;
_endArc = arc;
}
else
{
if (_startArc == null)
{
_startArc = (_endArc = _backend.EpsilonTransition(1f));
}
_backend.AddSemanticInterpretationTag(_endArc, propertyInfo);
}
}
internal Tag(Backend be, CfgGrammar.CfgProperty property)
{
_be = be;
_cfgTag = new CfgSemanticTag(be.Symbols, property);
}
