protected override ParsingState MatchImpl(ParsingState st)
{
//int pos = st.Pos;
//if (this.Child.Match(st).LastMatchSuccessed == true)
// return st.ExitChild(false, pos - st.Pos);
//else
// return st.ExitChild(true, st.Pos - pos);
var newState = this.Child.Match(st.EnterChild(this.Child));
return(newState.ExitChild(!newState.LastMatchSuccessed.Value, -(newState.Pos - st.Pos)));
}
protected override ParsingState MatchImpl(ParsingState st)
{
//int startPos = st.Pos;
foreach (var item in this.Items)
{
st = item.Match(st.EnterChild(item));
if (st.LastMatchSuccessed == false)
{
return(st.ExitChild(false));
}
}
return(st.ExitChild(true, 0));
}
protected override ParsingState MatchImpl(ParsingState st)
{
int count = 0;
int startPos = st.Pos;
for (; count < this.Max; ++count)
{
st = this.Child.Match(st.EnterChild(this.Child));
if (st.LastMatchSuccessed == false)
{
break;
}
}
if (count >= this.Min && count <= this.Max)
{
return(st.ExitChild(true));
}
else
{
return(st.ExitChild(false));
}
}
