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2 changed files with 16 additions and 386 deletions
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381
SaneTsv/SaneTsv.cs
View File

@ -28,26 +28,11 @@ public class SaneTsv
COMMENTED_TSV = 2,
}
public static readonly byte[] TrueEncoded = Encoding.UTF8.GetBytes("TRUE");
public static readonly byte[] FalseEncoded = Encoding.UTF8.GetBytes("FALSE");
// TODO: We need to be able to update all these in tandem somehow
public string[] ColumnNames { get; protected set; }
public Type[] ColumnTypes { get; protected set; }
public List<SaneTsvRecord> Records { get; protected set; }
public string FileComment { get; protected set; } = null;
protected static bool? _littleEndian = null;
public static bool LittleEndian
{
get
{
if (_littleEndian == null)
{
_littleEndian = BitConverter.GetBytes(double.NegativeInfinity)[7] == 255;
}
return _littleEndian.Value;
}
}
public static SaneTsv ParseSimpleTsv(byte[] inputBuffer)
{
@ -148,8 +133,7 @@ public class SaneTsv
string columnTypeString;
string columnName;
if (columnString.Contains(':'))
{
if (columnString.Contains(':')) {
if (format == FormatType.SIMPLE_TSV)
{
throw new Exception($"Header {fields.Count} contain ':', which is not allowed for column names");
@ -319,44 +303,6 @@ public class SaneTsv
parsedFields[j] = fields[j];
continue;
}
else if (parsed.ColumnTypes[j] == typeof(Float32LEType))
{
byte[] floatBytes;
if (!LittleEndian)
{
floatBytes = new byte[sizeof(float)];
for (int k = 0; k < sizeof(float); k++)
{
floatBytes[k] = fields[j][sizeof(float) - 1 - k];
}
}
else
{
floatBytes = fields[j];
}
parsedFields[j] = BitConverter.ToSingle(floatBytes, 0);
continue;
}
else if (parsed.ColumnTypes[j] == typeof(Float64LEType))
{
byte[] floatBytes;
if (!LittleEndian)
{
floatBytes = new byte[sizeof(double)];
for (int k = 0; k < sizeof(double); k++)
{
floatBytes[k] = fields[j][sizeof(double) - 1 - k];
}
}
else
{
floatBytes = fields[j];
}
parsedFields[j] = BitConverter.ToDouble(floatBytes, 0);
continue;
}
string fieldString;
try
@ -401,6 +347,13 @@ public class SaneTsv
parsedFields[j] = parsedFloat;
}
else if (parsed.ColumnTypes[j] == typeof(Float32LEType))
{
throw new NotImplementedException();
// TODO: Implement and do byte-swapping if necessary
//parsedFields[j] = parsedFloat;
}
else if (parsed.ColumnTypes[j] == typeof(Float64Type))
{
if (!double.TryParse(fieldString, out double parsedDouble))
@ -410,6 +363,13 @@ public class SaneTsv
parsedFields[j] = parsedDouble;
}
else if (parsed.ColumnTypes[j] == typeof(Float64LEType))
{
throw new NotImplementedException();
// TODO: Implement and do byte-swapping if necessary
//parsedFields[j] = parsedFloat;
}
else if (parsed.ColumnTypes[j] == typeof(UInt32Type))
{
if (!UInt32.TryParse(fieldString, out UInt32 parsedUInt32))
@ -552,317 +512,6 @@ public class SaneTsv
return Encoding.UTF8.GetBytes(escapedString.ToString());
}
public static Type GetColumnFromType(Type type)
{
if (type == typeof(string))
{
return typeof(StringType);
}
else if (type == typeof(bool))
{
return typeof(BooleanType);
}
else if (type == typeof(float))
{
return typeof(Float32Type);
}
else if (type == typeof(double))
{
return typeof(Float64Type);
}
else if (type == typeof(UInt32))
{
return typeof(UInt32Type);
}
else if (type == typeof(UInt64))
{
return typeof(UInt64Type);
}
else if (type == typeof(Int32))
{
return typeof(Int32Type);
}
else if (type == typeof(Int64))
{
return typeof(Int64Type);
}
else if (type == typeof(byte[]))
{
return typeof(BinaryType);
}
else
{
throw new Exception($"Invalid type: {type}");
}
}
public static string GetNameFromColumn(Type type)
{
if (type == typeof(StringType))
{
return "string";
}
else if (type == typeof(BooleanType))
{
return "boolean";
}
else if (type == typeof(Float32Type))
{
return "float32";
}
else if (type == typeof(Float32LEType))
{
return "float32-le";
}
else if (type == typeof(Float64Type))
{
return "float64";
}
else if (type == typeof(Float64LEType))
{
return "float64-le";
}
else if (type == typeof(UInt32Type))
{
return "uint32";
}
else if (type == typeof(UInt64Type))
{
return "uint64";
}
else if (type == typeof(Int32Type))
{
return "int32";
}
else if (type == typeof(Int64Type))
{
return "int64";
}
else if (type == typeof(BinaryType))
{
return "binary";
}
else
{
throw new Exception($"Invalid type: {type}");
}
}
public static byte[] SerializeTypedTsv(IList<Type> headerTypes, IList<string> headerNames, IList<IList<object>> data)
{
var bytes = new List<byte>();
if (headerNames.Count != headerTypes.Count)
{
throw new ArgumentException($"headerTypes length ({headerTypes.Count}) does not match headerNames length ({headerNames.Count})");
}
// Serialize header
for (int i = 0; i < headerNames.Count; i++)
{
for (int j = i + 1; j < headerNames.Count; j++)
{
if (headerNames[i] == headerNames[j])
{
throw new Exception("Column names in header must be unique");
}
}
byte[] nameEncoded = Encoding.UTF8.GetBytes(headerNames[i]);
for (int j = 0; j < nameEncoded.Length; j++)
{
if (nameEncoded[j] == '\n')
{
bytes.Add((byte)'\\');
bytes.Add((byte)'n');
}
else if (nameEncoded[j] == '\t')
{
bytes.Add((byte)'\\');
bytes.Add((byte)'t');
}
else if (nameEncoded[j] == '\\')
{
bytes.Add((byte)'\\');
bytes.Add((byte)'\\');
}
else if (nameEncoded[j] == '#')
{
bytes.Add((byte)'\\');
bytes.Add((byte)'#');
}
else
{
bytes.Add(nameEncoded[j]);
}
}
bytes.Add((byte)':');
try
{
bytes.AddRange(Encoding.UTF8.GetBytes(GetNameFromColumn(headerTypes[i])));
}
catch (Exception e)
{
throw new Exception($"Invalid header type for column {i}", e);
}
if (i == headerNames.Count - 1)
{
bytes.Add((byte)'\n');
}
else
{
bytes.Add((byte)'\t');
}
}
// Serialize data
for (int i = 0; i < data.Count; i++)
{
for (int j = 0; j < data[i].Count; j++)
{
try
{
byte[] fieldEncoded;
if (headerTypes[j] == typeof(StringType))
{
fieldEncoded = Encoding.UTF8.GetBytes((string)data[i][j]);
}
else if (headerTypes[j] == typeof(BooleanType))
{
bytes.AddRange((bool)data[i][j] ? TrueEncoded : FalseEncoded);
// In this case we know these values don't need escaping
continue;
}
else if (headerTypes[j] == typeof(Float32Type))
{
// See https://learn.microsoft.com/en-us/dotnet/standard/base-types/standard-numeric-format-strings#round-trip-format-specifier-r
bytes.AddRange(Encoding.UTF8.GetBytes(((float)data[i][j]).ToString("G9")));
// In this case we know these values don't need escaping
continue;
}
else if (headerTypes[j] == typeof(Float32LEType))
{
if (LittleEndian)
{
fieldEncoded = BitConverter.GetBytes((float)data[i][j]);
}
else
{
byte[] floatBytes = BitConverter.GetBytes((float)data[i][j]);
fieldEncoded = new byte[sizeof(float)];
for (int k = 0; k < sizeof(float); k++)
{
fieldEncoded[k] = floatBytes[sizeof(float) - 1 - k];
}
}
}
else if (headerTypes[j] == typeof(Float64Type))
{
// See https://learn.microsoft.com/en-us/dotnet/standard/base-types/standard-numeric-format-strings#round-trip-format-specifier-r
bytes.AddRange(Encoding.UTF8.GetBytes(((double)data[i][j]).ToString("G17")));
// In this case we know these values don't need escaping
continue;
}
else if (headerTypes[j] == typeof(Float64LEType))
{
if (LittleEndian)
{
fieldEncoded = BitConverter.GetBytes((double)data[i][j]);
}
else
{
byte[] doubleBytes = BitConverter.GetBytes((double)data[i][j]);
fieldEncoded = new byte[sizeof(double)];
for (int k = 0; k < sizeof(double); k++)
{
fieldEncoded[k] = doubleBytes[sizeof(double) - 1 - k];
}
}
}
else if (headerTypes[j] == typeof(UInt32Type))
{
bytes.AddRange(Encoding.UTF8.GetBytes(((UInt32)data[i][j]).ToString()));
// In this case we know these values don't need escaping
continue;
}
else if (headerTypes[j] == typeof(UInt64Type))
{
bytes.AddRange(Encoding.UTF8.GetBytes(((UInt64)data[i][j]).ToString()));
// In this case we know these values don't need escaping
continue;
}
else if (headerTypes[j] == typeof(Int32Type))
{
bytes.AddRange(Encoding.UTF8.GetBytes(((Int32)data[i][j]).ToString()));
// In this case we know these values don't need escaping
continue;
}
else if (headerTypes[j] == typeof(Int64Type))
{
bytes.AddRange(Encoding.UTF8.GetBytes(((Int64)data[i][j]).ToString()));
// In this case we know these values don't need escaping
continue;
}
else if (headerTypes[j] == typeof(BinaryType))
{
fieldEncoded = (byte[])data[i][j];
}
else
{
throw new Exception($"Unexpected column type {headerTypes[j]} for column {j}");
}
for (int k = 0; k < fieldEncoded.Length; k++)
{
if (fieldEncoded[k] == '\n')
{
bytes.Add((byte)'\\');
bytes.Add((byte)'n');
}
else if (fieldEncoded[k] == '\t')
{
bytes.Add((byte)'\\');
bytes.Add((byte)'t');
}
else if (fieldEncoded[k] == '\\')
{
bytes.Add((byte)'\\');
bytes.Add((byte)'\\');
}
else if (fieldEncoded[k] == '#')
{
bytes.Add((byte)'\\');
bytes.Add((byte)'#');
}
else
{
bytes.Add(fieldEncoded[k]);
}
}
if (j == headerNames.Count - 1)
{
bytes.Add((byte)'\n');
}
else
{
bytes.Add((byte)'\t');
}
}
catch (InvalidCastException e)
{
throw new Exception($"Record {i}, field {j} expected type compatible with {GetNameFromColumn(headerTypes[j])}", e);
}
}
}
return bytes.ToArray();
}
public SaneTsvRecord this[int i] => Records[i];
public class SaneTsvRecord

19
SaneTsv/SaneTsvTest/Program.cs
View File

@ -1,5 +1,4 @@
using NathanMcRae;
using System.Linq;
using System.Text;
{
@ -69,24 +68,6 @@ using System.Text;
}
}
{
string testName = "Float binary test";
var bytes = new List<byte>();
bytes.AddRange(Encoding.UTF8.GetBytes("somefloat:float64\tbinfloat:float64-le" +
"\n1.5\t")); bytes.AddRange(BitConverter.GetBytes(1.5));
bytes.AddRange(Encoding.UTF8.GetBytes("\n-8.0000005E-14\t")); bytes.AddRange(BitConverter.GetBytes(-8.0000005E-14));
SaneTsv parsed = SaneTsv.ParseTypedTsv(bytes.ToArray());
if ((double)parsed.Records[0]["binfloat"] == (double)parsed.Records[0]["somefloat"])
{
Console.WriteLine($"Passed {testName}");
}
else
{
Console.WriteLine($"Failed {testName}");
}
}
Console.WriteLine("Done with tests");