public override IEnumerable <Word> Apply(Word input)
{
bool applied = false;
Match <Word, ShapeNode> targetMatch = Matcher.Match(input);
while (targetMatch.Success)
{
ShapeNode start;
PhonologicalSubruleMatch srMatch;
if (RuleSpec.MatchSubrule(this, targetMatch, out srMatch))
{
srMatch.SubruleSpec.ApplyRhs(targetMatch, srMatch.Range, srMatch.VariableBindings);
applied = true;
start = targetMatch.Range.GetEnd(Matcher.Direction).GetNext(Matcher.Direction);
}
else
{
start = targetMatch.Range.GetStart(Matcher.Direction).GetNext(Matcher.Direction);
}
if (start == null)
{
break;
}
targetMatch = Matcher.Match(input, start);
}
if (applied)
{
input.ResetDirty();
return(input.ToEnumerable());
}
return(Enumerable.Empty <Word>());
}
