public override void GramerAccept(GramerInfo gramerInfo)
{
var color = Console.ForegroundColor;
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine(gramerInfo.Symbol.Name + "," + gramerInfo.Value);
Console.ForegroundColor = color;
}
public override void GramerRead(GramerInfo gramerInfo)
{
var color = Console.ForegroundColor;
Console.ForegroundColor = ConsoleColor.Green;
Console.WriteLine(new string(' ', gramerInfo.Level * 3) + gramerInfo.Level + ":" + gramerInfo.Symbol.Name +
"," + gramerInfo.Value + "$");
Console.ForegroundColor = color;
}
public virtual void GramerAccept(GramerInfo gramerInfo)
{
}
public virtual void GramerRead(GramerInfo gramerInfo)
{
}
public void Analy(string val)
{
_ResultGramerInfo = null;
var tokenReader = new TokenReader(_EgtManager, val);
var gramerReader = new GramerReader(_EgtManager);
while (true)
{
var token = tokenReader.ReadToken();
TokenRead(token);
if (token.Symbol == null || token.Symbol.Type != SymbolType.Noise)
{
while (true)
{
var gramer = gramerReader.ReadGramer(token);
if (gramer.GramerState == GramerInfoState.Reduce)
{
var gramerVal = val.Substring(gramer.Index, token.Index - gramer.Index);
if (ContentNameGroup.Contains(gramer.Symbol.Name))
{
var preWhiteSpace = val.MatchPre(@"\s+", gramer.Index - 1);
if (preWhiteSpace != null)
{
gramerVal = preWhiteSpace + gramerVal;
var newPoint = val.PrePoint(new LinePoint(gramer.Index, gramer.Col, gramer.Line),
preWhiteSpace.Length);
gramer.Index = newPoint.Index;
gramer.Line = newPoint.Y;
gramer.Col = newPoint.X;
}
gramer.Value = gramerVal;
//index,line,col
}
else
{
gramerVal = gramerVal.Trim();
gramer.Value = gramerVal;
}
GramerRead(gramer);
}
else if (gramer.GramerState == GramerInfoState.Accept)
{
_ResultGramerInfo = gramer.ChildGroup[0];
GramerAccept(gramer);
}
if (gramer.GramerState != GramerInfoState.Reduce)
{
break;
}
}
}
if (token.State == TokenInfoState.End)
{
break;
}
}
}
public GramerInfo ReadGramer(TokenInfo tokenInfo)
{
var curStrate = _GrammerGroup.Peek().Item1;
var action = curStrate.GetAction(tokenInfo.Symbol);
if (action == null)
{
return(new GramerInfo(GramerInfoState.Error, tokenInfo));
}
else
{
if (action.ActionType == ActionType.Shift)
{
var gramerSymbol = new GramerInfo(GramerInfoState.Shift, tokenInfo);
_GrammerGroup.Push(new Tuple <LALRState, GramerInfo>(action.TargetState, gramerSymbol));
return(gramerSymbol);
}
else if (action.ActionType == ActionType.Reduce)
{
var produce = action.TargetRule;
var prodSymbolCount = produce.SymbolGroup.Count;
var group = EnumerableHelper.For(prodSymbolCount)
.Select(item => _GrammerGroup.Pop())
.Reverse()
.ToList();
var gramerSymbol = new GramerInfo(GramerInfoState.Reduce,
group.Count > 0
? group.First().Item2.StartToken
: new TokenInfo(TokenInfoState.Accept, null, null, tokenInfo.Index, tokenInfo.Line,
tokenInfo.Col))
{
ChildGroup = group.Select(item => item.Item2).ToList(),
Value = group.JoinStr(string.Empty, item => item.Item2.Value),
Symbol = produce.NonTerminal,
Produce = produce
};
_GrammerGroup.Push(new Tuple <LALRState, GramerInfo>(_GrammerGroup.Peek().Item1.GetAction(produce.NonTerminal).TargetState, gramerSymbol));
return(gramerSymbol);
}
else if (action.ActionType == ActionType.Accept)
{
var gramerInfo = _GrammerGroup.Peek().Item2;
var gramerSymbol = new GramerInfo(GramerInfoState.Accept, tokenInfo)
{
ChildGroup = new List <GramerInfo>()
{
gramerInfo
},
Value = gramerInfo.Value,
Data = gramerInfo.Data
};
return(gramerSymbol);
}
else
{
throw new NotSupportedException();
}
}
}
