/// <summary>
/// Write a checksum collection in an xml format
/// </summary>
/// <param name="collection">Collection to write</param>
/// <param name="textWriter">Output writer</param>
/// <param name="name">Checksum name (usually vertical or horizontal)</param>
private static void ChecksumCollectionToXml(Puzzle.ChecksumCollection collection, TextWriter textWriter, string name)
{
if (collection == null)
{
throw new ArgumentNullException(nameof(collection));
}
if (textWriter == null)
{
throw new ArgumentNullException(nameof(textWriter));
}
if (name == null)
{
throw new ArgumentNullException(nameof(name));
}
textWriter.WriteLine("<" + name + ">");
for (int i = 0; i < collection.Count; i++)
{
textWriter.WriteLine(" <Checksum>");
for (int j = 0; j < collection[i].Count; j++)
{
textWriter.WriteLine(" <State>" + collection[i][j].ToString() + "</State>");
}
textWriter.WriteLine(" </Checksum>");
}
textWriter.WriteLine("</" + name + ">");
}
/// <summary>
/// Parse a puzzle checksum in json format
/// </summary>
/// <param name="reader">Input reader</param>
/// <returns>Parsed checksum collection</returns>
private static Puzzle.ChecksumCollection readJsonChecksum(int size, JsonTextReader jsonReader)
{
var checksum = new Puzzle.ChecksumCollection(size);
// Starting index at -1, it will increase to 0 when reading first opening bracket
var index = 0;
var startingDepth = jsonReader.Depth;
while (jsonReader.Read())
{
switch (jsonReader.TokenType)
{
case JsonToken.StartArray:
{
break;
}
case JsonToken.EndArray:
{
if (index == size - 1)
{
return(checksum);
}
index++;
break;
}
default:
{
checksum[index].Add(int.Parse(jsonReader.Value.ToString()));
break;
}
}
}
return(checksum);
}
/// <summary>
/// Parse a puzzle in json format
/// </summary>
/// <param name="reader">Input reader</param>
/// <returns>Parsed puzzle</returns>
public static Puzzle JsonToPuzzle(TextReader reader)
{
var jsonReader = new JsonTextReader(reader);
int sizeX = 0, sizeY = 0;
CellState[] state = null;
Puzzle.ChecksumCollection horizontal = null, vertical = null;
while (jsonReader.Read())
{
if (jsonReader.Value != null)
{
switch (jsonReader.Value)
{
case "SizeX":
{
sizeX = (int)jsonReader.ReadAsInt32();
break;
}
case "SizeY":
{
sizeY = (int)jsonReader.ReadAsInt32();
break;
}
case "Horizontal":
{
horizontal = readJsonChecksum(sizeY, jsonReader);
break;
}
case "Vertical":
{
vertical = readJsonChecksum(sizeX, jsonReader);
break;
}
case "State":
{
state = readJsonState(sizeX, sizeY, jsonReader);
break;
}
}
}
}
var puzzle = new Puzzle(horizontal, vertical);
SetPuzzleState(puzzle, state);
return(puzzle);
}
/// <summary>
/// Write a checksum collection in a json format
/// </summary>
/// <param name="collection">Collection to write</param>
/// <param name="textWriter">Output writer</param>
/// <param name="name">Checksum name (usually vertical or horizontal)</param>
private static void JsonChecksumCollection(Puzzle.ChecksumCollection collection, TextWriter textWriter, string name)
{
textWriter.Write("\"" + name + "\":[");
for (int i = 0; i < collection.Count; i++)
{
textWriter.Write("[");
for (int j = 0; j < collection[i].Count; j++)
{
textWriter.Write("\"" + collection[i][j].ToString() + "\"");
if (j != collection[i].Count - 1)
{
textWriter.Write(",");
}
}
textWriter.Write("]");
if (i != collection.Count - 1)
{
textWriter.Write(",");
}
}
textWriter.Write("]");
}
/// <summary>
/// Parse a checksum in xml format
/// </summary>
/// <param name="size">Size of the checksum</param>
/// <param name="reader">Input reader</param>
/// <returns>Parsed Checksum collection</returns>
private static Puzzle.ChecksumCollection readXmlChecksum(int size, XmlReader reader)
{
// index will be set to 0 after reading the first checksum
int index = -1;
var checksum = new Puzzle.ChecksumCollection(size);
reader.MoveToContent();
while (!reader.EOF)
{
if (reader.Name == "State" && reader.NodeType == XmlNodeType.Element)
{
checksum[index].Add(reader.ReadElementContentAsInt());
continue;
}
if (reader.Name == "Checksum" && reader.NodeType == XmlNodeType.Element)
{
index++;
}
reader.Read();
}
return(checksum);
}
/// <summary>
/// Parse a puzzle in Xml format
/// </summary>
/// <param name="reader">Input reader</param>
/// <returns>Parsed puzzle</returns>
public static Puzzle XmlToPuzzle(TextReader reader)
{
var settings = new XmlReaderSettings();
settings.IgnoreWhitespace = true;
var xmlReader = XmlReader.Create(reader, settings);
xmlReader.MoveToContent();
int sizeX = 0, sizeY = 0;
CellState[] state = null;
Puzzle.ChecksumCollection horizontal = null, vertical = null;
while (!xmlReader.EOF)
{
if (xmlReader.NodeType == XmlNodeType.Element)
{
switch (xmlReader.Name)
{
case "SizeX":
{
sizeX = xmlReader.ReadElementContentAsInt();
break;
}
case "SizeY":
{
sizeY = xmlReader.ReadElementContentAsInt();
break;
}
case "Horizontal":
{
horizontal = readXmlChecksum(sizeY, xmlReader.ReadSubtree());
break;
}
case "Vertical":
{
vertical = readXmlChecksum(sizeX, xmlReader.ReadSubtree());
break;
}
case "State":
{
state = readXmlState(sizeX, sizeY, xmlReader.ReadSubtree());
break;
}
default:
{
xmlReader.Read();
break;
}
}
}
else
{
xmlReader.Read();
}
}
var puzzle = new Puzzle(horizontal, vertical);
SetPuzzleState(puzzle, state);
return(puzzle);
}