private CsvNode ParseINTEGER()
{
CsvNode node = new CsvNode(CsvNodeType.INTEGER, this._token.Value);
this._token = this._tokenizer.Tokenize(this._reader);
return(node);
}
private CsvNode ParseNEWLINE()
{
CsvNode node = new CsvNode(CsvNodeType.NEWLINE, this._token.Value);
this._token = this._tokenizer.Tokenize(this._reader);
return(node);
}
private CsvNode ParseCellList()
{
CsvNode node = new CsvNode(CsvNodeType.CellList);
switch (this._token.Type)
{
case CsvTokenType.BOOLEAN:
case CsvTokenType._EOF_:
case CsvTokenType.FLOAT:
case CsvTokenType.INTEGER:
case CsvTokenType.NEWLINE:
case CsvTokenType.QUOTED_STRING:
case CsvTokenType.STRING:
{
node.Nodes.Add(ParseCell());
node.Nodes.Add(ParseCellListTail());
return(node);
}
default:
{
throw new System.Exception("Syntax error.");
}
}
}
private CsvNode ParseSTRING()
{
CsvNode node = new CsvNode(CsvNodeType.STRING, this._token.Value);
this._token = this._tokenizer.Tokenize(this._reader);
return(node);
}
private CsvNode ParseBOOLEAN()
{
CsvNode node = new CsvNode(CsvNodeType.BOOLEAN, this._token.Value);
this._token = this._tokenizer.Tokenize(this._reader);
return(node);
}
private CsvNode ParseFLOAT()
{
CsvNode node = new CsvNode(CsvNodeType.FLOAT, this._token.Value);
this._token = this._tokenizer.Tokenize(this._reader);
return(node);
}
protected override object EvaluateCellCellListTail(CsvNode node)
{
this._row.Add(Evaluate(node.Nodes[0]));
if (node.Nodes[1].Nodes.Count > 0)
{
Evaluate(node.Nodes[1]);
}
return(null);
}
protected override object EvaluateCOMMACellCellListTail(CsvNode node)
{
if (node.Nodes[1].Nodes.Count == 0)
{
this._row.Add(null);
}
else
{
this._row.Add(Evaluate(node.Nodes[1]));
}
if (node.Nodes[2].Nodes.Count > 0)
{
Evaluate(node.Nodes[2]);
}
return(null);
}
private CsvNode ParseCell()
{
CsvNode node = new CsvNode(CsvNodeType.Cell);
switch (this._token.Type)
{
case CsvTokenType.BOOLEAN:
{
node.Nodes.Add(ParseBOOLEAN());
return(node);
}
case CsvTokenType.INTEGER:
{
node.Nodes.Add(ParseINTEGER());
return(node);
}
case CsvTokenType.FLOAT:
{
node.Nodes.Add(ParseFLOAT());
return(node);
}
case CsvTokenType.STRING:
{
node.Nodes.Add(ParseSTRING());
return(node);
}
case CsvTokenType.QUOTED_STRING:
{
node.Nodes.Add(ParseQUOTED_STRING());
return(node);
}
default:
{
return(node);
}
}
}
private CsvNode ParseCellListTail()
{
CsvNode node = new CsvNode(CsvNodeType.CellListTail);
switch (this._token.Type)
{
case CsvTokenType.COMMA:
{
node.Nodes.Add(ParseCOMMA());
node.Nodes.Add(ParseCell());
node.Nodes.Add(ParseCellListTail());
return(node);
}
default:
{
return(node);
}
}
}
private CsvNode ParseRowEnd()
{
CsvNode node = new CsvNode(CsvNodeType.RowEnd);
switch (this._token.Type)
{
case CsvTokenType.NEWLINE:
{
node.Nodes.Add(ParseNEWLINE());
return(node);
}
case CsvTokenType._EOF_:
{
return(node);
}
default:
{
throw new System.Exception("Syntax error.");
}
}
}
public int CompareTo(object obj)
{
CsvNode node = (CsvNode)obj;
int cmp = this.Type.CompareTo(node.Type);
if (cmp != 0)
{
return(cmp);
}
if (this.Value != null && node.Value != null)
{
cmp = this.Value.CompareTo(node.Value);
if (cmp != 0)
{
return(cmp);
}
}
else if (this.Value != null)
{
return(1);
}
else if (node.Value != null)
{
return(-1);
}
int min = Math.Min(this.Nodes.Count, node.Nodes.Count);
for (int i = 0; i < min; i++)
{
cmp = this.Nodes[i].CompareTo(node.Nodes[i]);
if (cmp != 0)
{
return(cmp);
}
}
return((this.Nodes.Count == node.Nodes.Count) ? 0 : ((this.Nodes.Count > node.Nodes.Count) ? -1 : 1));
}
private CsvNode ParseRow()
{
CsvNode node = new CsvNode(CsvNodeType.Row);
switch (this._token.Type)
{
case CsvTokenType.BOOLEAN:
case CsvTokenType.COMMA:
case CsvTokenType.FLOAT:
case CsvTokenType.INTEGER:
case CsvTokenType.QUOTED_STRING:
case CsvTokenType.STRING:
{
node.Nodes.Add(ParseCellList());
node.Nodes.Add(ParseRowEnd());
return(node);
}
default:
{
return(node);
}
}
}
protected override object EvaluateCellListRowEnd(CsvNode node)
{
Evaluate(node.Nodes[0]);
return(null);
}
private void Generate(CsvNode node, System.IO.TextWriter writer, ref bool writeWhitespace)
{
switch (node.Type)
{
case CsvNodeType.Cell:
{
for (int i = 0; i < node.Nodes.Count; i++)
{
Generate(node.Nodes[i], writer, ref writeWhitespace);
}
break;
}
case CsvNodeType.CellList:
{
for (int i = 0; i < node.Nodes.Count; i++)
{
Generate(node.Nodes[i], writer, ref writeWhitespace);
}
break;
}
case CsvNodeType.CellListTail:
{
for (int i = 0; i < node.Nodes.Count; i++)
{
Generate(node.Nodes[i], writer, ref writeWhitespace);
}
break;
}
case CsvNodeType.Row:
{
for (int i = 0; i < node.Nodes.Count; i++)
{
Generate(node.Nodes[i], writer, ref writeWhitespace);
}
break;
}
case CsvNodeType.RowEnd:
{
for (int i = 0; i < node.Nodes.Count; i++)
{
Generate(node.Nodes[i], writer, ref writeWhitespace);
}
break;
}
case CsvNodeType.BOOLEAN:
{
if (writeWhitespace)
{
writer.Write(" ");
}
writer.Write(node.Value);
writeWhitespace = true;
break;
}
case CsvNodeType.COMMA:
{
if (writeWhitespace)
{
writer.Write(" ");
}
writer.Write(node.Value);
writeWhitespace = true;
break;
}
case CsvNodeType.EOF:
{
if (writeWhitespace)
{
writer.Write(" ");
}
writer.Write(node.Value);
writeWhitespace = true;
break;
}
case CsvNodeType.EPSILON:
{
if (writeWhitespace)
{
writer.Write(" ");
}
writer.Write(node.Value);
writeWhitespace = true;
break;
}
case CsvNodeType.FLOAT:
{
if (writeWhitespace)
{
writer.Write(" ");
}
writer.Write(node.Value);
writeWhitespace = true;
break;
}
case CsvNodeType.INTEGER:
{
if (writeWhitespace)
{
writer.Write(" ");
}
writer.Write(node.Value);
writeWhitespace = true;
break;
}
case CsvNodeType.NEWLINE:
{
if (writeWhitespace)
{
writer.Write(" ");
}
writer.Write(node.Value);
writeWhitespace = true;
break;
}
case CsvNodeType.QUOTED_STRING:
{
if (writeWhitespace)
{
writer.Write(" ");
}
writer.Write(node.Value);
writeWhitespace = true;
break;
}
case CsvNodeType.STRING:
{
if (writeWhitespace)
{
writer.Write(" ");
}
writer.Write(node.Value);
writeWhitespace = true;
break;
}
default:
{
throw new System.Exception("Invalid node type.");
}
}
}
protected virtual object EvaluateCOMMACellCellListTail(CsvNode node)
{
throw new System.Exception("Implement.");
}
public static void Print(CsvNode node, System.IO.TextWriter writer)
{
Print(node, writer, 0);
}
public object Evaluate(CsvNode node)
{
switch (node.Type)
{
case CsvNodeType.Cell:
{
if (node.Nodes.Count == 1 && node.Nodes[0].Type == CsvNodeType.BOOLEAN)
{
return(EvaluateBOOLEAN(node.Nodes[0].Value));
}
if (node.Nodes.Count == 1 && node.Nodes[0].Type == CsvNodeType.INTEGER)
{
return(EvaluateINTEGER(node.Nodes[0].Value));
}
if (node.Nodes.Count == 1 && node.Nodes[0].Type == CsvNodeType.FLOAT)
{
return(EvaluateFLOAT(node.Nodes[0].Value));
}
if (node.Nodes.Count == 1 && node.Nodes[0].Type == CsvNodeType.STRING)
{
return(EvaluateSTRING(node.Nodes[0].Value));
}
if (node.Nodes.Count == 1 && node.Nodes[0].Type == CsvNodeType.QUOTED_STRING)
{
return(EvaluateQUOTED_STRING(node.Nodes[0].Value));
}
throw new System.Exception("Invalid expression.");
}
case CsvNodeType.CellList:
{
if (node.Nodes.Count == 2 && node.Nodes[0].Type == CsvNodeType.Cell && node.Nodes[1].Type == CsvNodeType.CellListTail)
{
return(EvaluateCellCellListTail(node));
}
throw new System.Exception("Invalid expression.");
}
case CsvNodeType.CellListTail:
{
if (node.Nodes.Count == 3 && node.Nodes[0].Type == CsvNodeType.COMMA && node.Nodes[1].Type == CsvNodeType.Cell && node.Nodes[2].Type == CsvNodeType.CellListTail)
{
return(EvaluateCOMMACellCellListTail(node));
}
throw new System.Exception("Invalid expression.");
}
case CsvNodeType.Row:
{
if (node.Nodes.Count == 2 && node.Nodes[0].Type == CsvNodeType.CellList && node.Nodes[1].Type == CsvNodeType.RowEnd)
{
return(EvaluateCellListRowEnd(node));
}
throw new System.Exception("Invalid expression.");
}
case CsvNodeType.RowEnd:
{
if (node.Nodes.Count == 1 && node.Nodes[0].Type == CsvNodeType.NEWLINE)
{
return(EvaluateNEWLINE(node.Nodes[0].Value));
}
if (node.Nodes.Count == 1 && node.Nodes[0].Type == CsvNodeType.EOF)
{
return(EvaluateEOF(node.Nodes[0].Value));
}
throw new System.Exception("Invalid expression.");
}
case CsvNodeType.BOOLEAN:
{
return(EvaluateBOOLEAN(node.Value));
}
case CsvNodeType.COMMA:
{
return(EvaluateCOMMA(node.Value));
}
case CsvNodeType.EOF:
{
return(EvaluateEOF(node.Value));
}
case CsvNodeType.FLOAT:
{
return(EvaluateFLOAT(node.Value));
}
case CsvNodeType.INTEGER:
{
return(EvaluateINTEGER(node.Value));
}
case CsvNodeType.NEWLINE:
{
return(EvaluateNEWLINE(node.Value));
}
case CsvNodeType.QUOTED_STRING:
{
return(EvaluateQUOTED_STRING(node.Value));
}
case CsvNodeType.STRING:
{
return(EvaluateSTRING(node.Value));
}
default:
{
throw new System.Exception("Invalid expression.");
}
}
}
public void Generate(CsvNode node, System.IO.TextWriter writer)
{
bool writeWhitespace = false;
Generate(node, writer, ref writeWhitespace);
}
protected virtual object EvaluateCellListRowEnd(CsvNode node)
{
throw new System.Exception("Implement.");
}
private static void Print(CsvNode node, System.IO.TextWriter writer, int indentationLevel)
{
switch (node.Type)
{
case CsvNodeType.Cell:
{
for (int i = 0; i < indentationLevel; i++)
{
System.Console.Write(" ");
}
System.Console.WriteLine("Cell:");
foreach (CsvNode node2 in node.Nodes)
{
Print(node2, writer, indentationLevel + 1);
}
break;
}
case CsvNodeType.CellList:
{
for (int i = 0; i < indentationLevel; i++)
{
System.Console.Write(" ");
}
System.Console.WriteLine("CellList:");
foreach (CsvNode node2 in node.Nodes)
{
Print(node2, writer, indentationLevel + 1);
}
break;
}
case CsvNodeType.CellListTail:
{
for (int i = 0; i < indentationLevel; i++)
{
System.Console.Write(" ");
}
System.Console.WriteLine("CellListTail:");
foreach (CsvNode node2 in node.Nodes)
{
Print(node2, writer, indentationLevel + 1);
}
break;
}
case CsvNodeType.Row:
{
for (int i = 0; i < indentationLevel; i++)
{
System.Console.Write(" ");
}
System.Console.WriteLine("Row:");
foreach (CsvNode node2 in node.Nodes)
{
Print(node2, writer, indentationLevel + 1);
}
break;
}
case CsvNodeType.RowEnd:
{
for (int i = 0; i < indentationLevel; i++)
{
System.Console.Write(" ");
}
System.Console.WriteLine("RowEnd:");
foreach (CsvNode node2 in node.Nodes)
{
Print(node2, writer, indentationLevel + 1);
}
break;
}
case CsvNodeType.BOOLEAN:
{
for (int i = 0; i < indentationLevel; i++)
{
System.Console.Write(" ");
}
System.Console.WriteLine("BOOLEAN: " + node.Value);
break;
}
case CsvNodeType.COMMA:
{
for (int i = 0; i < indentationLevel; i++)
{
System.Console.Write(" ");
}
System.Console.WriteLine("COMMA: " + node.Value);
break;
}
case CsvNodeType.EOF:
{
for (int i = 0; i < indentationLevel; i++)
{
System.Console.Write(" ");
}
System.Console.WriteLine("EOF: " + node.Value);
break;
}
case CsvNodeType.EPSILON:
{
for (int i = 0; i < indentationLevel; i++)
{
System.Console.Write(" ");
}
System.Console.WriteLine("EPSILON: " + node.Value);
break;
}
case CsvNodeType.FLOAT:
{
for (int i = 0; i < indentationLevel; i++)
{
System.Console.Write(" ");
}
System.Console.WriteLine("FLOAT: " + node.Value);
break;
}
case CsvNodeType.INTEGER:
{
for (int i = 0; i < indentationLevel; i++)
{
System.Console.Write(" ");
}
System.Console.WriteLine("INTEGER: " + node.Value);
break;
}
case CsvNodeType.NEWLINE:
{
for (int i = 0; i < indentationLevel; i++)
{
System.Console.Write(" ");
}
System.Console.WriteLine("NEWLINE: " + node.Value);
break;
}
case CsvNodeType.QUOTED_STRING:
{
for (int i = 0; i < indentationLevel; i++)
{
System.Console.Write(" ");
}
System.Console.WriteLine("QUOTED_STRING: " + node.Value);
break;
}
case CsvNodeType.STRING:
{
for (int i = 0; i < indentationLevel; i++)
{
System.Console.Write(" ");
}
System.Console.WriteLine("STRING: " + node.Value);
break;
}
default:
{
throw new System.Exception("Invalid node type.");
}
}
}
