Sep v0.12.0 — nugetz

nietras/Sepv0.12.0

Name: Sep
Author: nietras

.NET 8.0.NET 9.0.NET 10.0

World's Fastest .NET CSV Parser. Modern, minimal, fast, zero allocation, reading and writing of separated values (csv, tsv etc.). Cross-platform, trimmable and AOT/NativeAOT compatible.

github.com ↗

License

MIT

Deps

Install Size

—

Vulns

✓ 0

Published

Jan 20, 2026

Get Started

$ dotnet add package Sep

Readme

Sep - the World's Fastest .NET CSV Parser

var text = """
           A;B;C;D;E;F
           Sep;🚀;1;1.2;0.1;0.5
           CSV;✅;2;2.2;0.2;1.5
           """;

using var reader = Sep.Reader().FromText(text);   // Infers separator 'Sep' from header
using var writer = reader.Spec.Writer().ToText(); // Writer defined from reader 'Spec'
                                                  // Use .FromFile(...)/ToFile(...) for files
var idx = reader.Header.IndexOf("B");
var nms = new[] { "E", "F" };

foreach (var readRow in reader)           // Read one row at a time
{
    var a = readRow["A"].Span;            // Column as ReadOnlySpan<char>
    var b = readRow[idx].ToString();      // Column to string (might be pooled)
    var c = readRow["C"].Parse<int>();    // Parse any T : ISpanParsable<T>
    var d = readRow["D"].Parse<float>();  // Parse float/double fast via csFastFloat
    var s = readRow[nms].Parse<double>(); // Parse multiple columns as Span<T>
                                          // - Sep handles array allocation and reuse
    foreach (ref var v in s) { v *= 10; }

    using var writeRow = writer.NewRow(); // Start new row. Row written on Dispose.
    writeRow["A"].Set(a);                 // Set by ReadOnlySpan<char>
    writeRow["B"].Set(b);                 // Set by string
    writeRow["C"].Set($"{c * 2}");        // Set via InterpolatedStringHandler, no allocs
    writeRow["D"].Format(d / 2);          // Format any T : ISpanFormattable
    writeRow[nms].Format(s);              // Format multiple columns directly
    // Columns are added on first access as ordered, header written when first row written
}

var expected = """
               A;B;C;D;E;F
               Sep;🚀;2;0.6;1;5
               CSV;✅;4;1.1;2;15
               
               """;                       // Empty line at end is for line ending,
                                          // which is always written.
Assert.AreEqual(expected, writer.ToString());

// Above example code is for demonstration purposes only.
// Short names and repeated constants are only for demonstration.

Term	Description
`Sep`	Short for separator, also called delimiter. E.g. comma (`,`) is the separator for the separated values in a `csv`-file.
`Header`	Optional first row defining names of columns.
`Row`	A row is a collection of col(umn)s, which may span multiple lines. Also called record.
`Col`	Short for column, also called field.
`Line`	Horizontal set of characters until a line ending; `\r\n`, `\r`, `\n`.
`Index`	0-based that is `RowIndex` will be 0 for first row (or the header if present).
`Number`	1-based that is `LineNumber` will be 1 for the first line (as in `notepad`). Given a row may span multiple lines a row can have a From line number and a ToExcl line number matching the C# range indexing syntax `[LineNumberFrom..LineNumberToExcl]`.

public readonly record struct Sep(char Separator);

using var reader = Sep.Reader().FromFile("titanic.csv");

using var reader = Sep.Auto.Reader().FromFile("titanic.csv");

using var reader = Sep.New(',').Reader().FromFile("titanic.csv");

var sep = new Sep(',');
using var reader = sep.Reader().FromFile("titanic.csv");

using var writer = Sep.Writer().ToFile("titanic.csv");

using var writer = Sep.New(',').Writer().ToFile("titanic.csv");

using var reader = Sep.Reader().FromFile("titanic.csv");
using var writer = reader.Spec.Writer().ToFile("titanic-survivors.csv");

Sep/Spec => SepReaderOptions => SepReader => Row => Col(s) => Span/ToString/Parse
Sep/Spec => SepWriterOptions => SepWriter => Row => Col(s) => Set/Format

using var reader = Sep.Reader(o => o).FromFile/FromText/From...;
var header = reader.Header;
var _ = header.IndexOf/IndicesOf/NamesStartingWith...;
foreach (var row in reader)
{
    var _ = row[colName/colNames].Span/ToString/Parse<T>...;
    var _ = row[colIndex/colIndices].Span/ToString/Parse<T>...;
}

/// <summary>
/// Specifies the separator used, if `null` then automatic detection 
/// is used based on first row in source.
/// </summary>
public Sep? Sep { get; init; } = null;
/// <summary>
/// Specifies initial internal `char` buffer length.
/// </summary>
/// <remarks>
/// The length will likely be rounded up to the nearest power of 2. A
/// smaller buffer may end up being used if the underlying source for <see
/// cref="System.IO.TextReader"/> is known to be smaller. Prefer to keep the
/// default length as that has been tuned for performance and cache sizes.
/// Avoid making this unnecessarily large as that will likely not improve
/// performance and may waste memory.
/// </remarks>
public int InitialBufferLength { get; init; } = SepDefaults.InitialBufferLength;
/// <summary>
/// Specifies the culture used for parsing. 
/// May be `null` for default culture.
/// </summary>
public CultureInfo? CultureInfo { get; init; } = SepDefaults.CultureInfo;
/// <summary>
/// Indicates whether the first row is a header row.
/// </summary>
public bool HasHeader { get; init; } = true;
/// <summary>
/// Specifies <see cref="IEqualityComparer{T}" /> to use 
/// for comparing header column names and looking up index.
/// </summary>
public IEqualityComparer<string> ColNameComparer { get; init; } = SepDefaults.ColNameComparer;
/// <summary>
/// Specifies the method factory used to convert a column span 
/// of `char`s to a `string`.
/// </summary>
public SepCreateToString CreateToString { get; init; } = SepToString.Direct;
/// <summary>
/// Disables using [csFastFloat](https://github.com/CarlVerret/csFastFloat)
/// for parsing `float` and `double`.
/// </summary>
public bool DisableFastFloat { get; init; } = false;
/// <summary>
/// Disables checking if column count is the same for all rows.
/// </summary>
public bool DisableColCountCheck { get; init; } = false;
/// <summary>
/// Disables detecting and parsing quotes.
/// </summary>
public bool DisableQuotesParsing { get; init; } = false;
/// <summary>
/// Unescape quotes on column access.
/// </summary>
/// <remarks>
/// When true, if a column starts with a quote then the two outermost quotes
/// are removed and every second inner quote is removed. Note that
/// unquote/unescape happens in-place, which means the <see
/// cref="SepReader.Row.Span" /> will be modified and contain "garbage"
/// state after unescaped cols before next col. This is for efficiency to
/// avoid allocating secondary memory for unescaped columns. Header
/// columns/names will also be unescaped.
/// Requires <see cref="DisableQuotesParsing"/> to be false.
/// </remarks>
public bool Unescape { get; init; } = false;
/// <summary>
/// Option for trimming spaces (` ` - ASCII 32) on column access.
/// </summary>
/// <remarks>
/// By default no trimming is done. See <see cref="SepTrim"/> for options.
/// Note that trimming may happen in-place e.g. if also unescaping, which
/// means the <see cref="SepReader.Row.Span" /> will be modified and contain
/// "garbage" state for trimmed/unescaped cols. This is for efficiency to
/// avoid allocating secondary memory for trimmed/unescaped columns. Header
/// columns/names will also be trimmed. Note that only the space ` ` (ASCII
/// 32) character is trimmed, not any whitespace character.
/// </remarks>
public SepTrim Trim { get; init; } = SepTrim.None;
/// <summary>
/// Forwarded to <see
/// cref="System.Threading.Tasks.ValueTask.ConfigureAwait(bool)"/> or
/// similar when async methods are called.
/// </summary>
public bool AsyncContinueOnCapturedContext { get; init; } = false;

Input	Valid	CsvHelper	CsvHelper¹	Sylvan	Sep²
`a`	True	`a`	`a`	`a`	`a`
`""`	True
`""""`	True	`"`	`"`	`"`	`"`
`""""""`	True	`""`	`""`	`""`	`""`
`"a"`	True	`a`	`a`	`a`	`a`
`"a""a"`	True	`a"a`	`a"a`	`a"a`	`a"a`
`"a""a""a"`	True	`a"a"a`	`a"a"a`	`a"a"a`	`a"a"a`
`a""a`	False	EXCEPTION	`a""a`	`a""a`	`a""a`
`a"a"a`	False	EXCEPTION	`a"a"a`	`a"a"a`	`a"a"a`
`·""·`	False	EXCEPTION	`·""·`	`·""·`	`·""·`
`·"a"·`	False	EXCEPTION	`·"a"·`	`·"a"·`	`·"a"·`
`·""`	False	EXCEPTION	`·""`	`·""`	`·""`
`·"a"`	False	EXCEPTION	`·"a"`	`·"a"`	`·"a"`
`a"""a`	False	EXCEPTION	`a"""a`	`a"""a`	`a"""a`
`"a"a"a"`	False	EXCEPTION	`aa"a"`	`a"a"a`	`aa"a`
`""·`	False	EXCEPTION	`·`	`"`	`·`
`"a"·`	False	EXCEPTION	`a·`	`a"`	`a·`
`"a"""a`	False	EXCEPTION	`aa`	EXCEPTION	`a"a`
`"a"""a"`	False	EXCEPTION	`aa"`	`a"a<NULL>`	`a"a"`
`""a"`	False	EXCEPTION	`a"`	`"a`	`a"`
`"a"a"`	False	EXCEPTION	`aa"`	`a"a`	`aa"`
`""a"a""`	False	EXCEPTION	`a"a""`	`"a"a"`	`a"a"`
`"""`	False			EXCEPTION	`"`
`"""""`	False	`"`	`"`	EXCEPTION	`""`

Input	CsvHelper Trim	CsvHelper InsideQuotes	CsvHelper All¹	Sep Outer	Sep AfterUnescape	Sep All²
`a`	`a`	`a`	`a`	`a`	`a`	`a`
`·a`	`a`	`·a`	`a`	`a`	`a`	`a`
`a·`	`a`	`a·`	`a`	`a`	`a`	`a`
`·a·`	`a`	`·a·`	`a`	`a`	`a`	`a`
`·a·a·`	`a·a`	`·a·a·`	`a·a`	`a·a`	`a·a`	`a·a`
`"a"`	`a`	`a`	`a`	`a`	`a`	`a`
`"·a"`	`·a`	`a`	`a`	`·a`	`a`	`a`
`"a·"`	`a·`	`a`	`a`	`a·`	`a`	`a`
`"·a·"`	`·a·`	`a`	`a`	`·a·`	`a`	`a`
`"·a·a·"`	`·a·a·`	`a·a`	`a·a`	`·a·a·`	`a·a`	`a·a`
`·"a"·`	`a`	`·"a"·`	`a`	`a`	`"a"`	`a`
`·"·a"·`	`·a`	`·"·a"·`	`a`	`·a`	`"·a"`	`a`
`·"a·"·`	`a·`	`·"a·"·`	`a`	`a·`	`"a·"`	`a`
`·"·a·"·`	`·a·`	`·"·a·"·`	`a`	`·a·`	`"·a·"`	`a`
`·"·a·a·"·`	`·a·a·`	`·"·a·a·"·`	`a·a`	`·a·a·`	`"·a·a·"`	`a·a`

var text = """
           Key;Value
           A;"1
           2
           3"
           B;"Apple
           Banana
           Orange
           Pear"
           """;
using var reader = Sep.Reader().FromText(text);
foreach (var row in reader)
{
    // Hover over reader, row or col when breaking here
    var col = row[1];
    if (Debugger.IsAttached && row.RowIndex == 2) { Debugger.Break(); }
    Debug.WriteLine(col.ToString());
}

String Length=55

2:[5..9] = "B;\"Apple\r\nBanana\r\nOrange\r\nPear\""

<ROWINDEX>:[<LINENUMBERRANGE>] = "<ROW>"

00:'Key'   = "B"
01:'Value' = "\"Apple\r\nBanana\r\nOrange\r\nPear\""

"\"Apple\r\nBanana\r\nOrange\r\nPear\""

using var reader = Sep.Reader().FromText(text);
foreach (var row in reader)
{ }

using var reader = Sep.Reader().FromText(text);
while (reader.MoveNext())
{
    var row = reader.Current;
}

using var reader = Sep.Reader().FromText(text);
SepReader.Row[] rows = reader.ToArray();

using var reader = Sep.Reader().FromText(text);
SepReader[] rows = reader.ToArray();

var text = """
           Key;Value
           A;1.1
           B;2.2
           """;
using var reader = Sep.Reader().FromText(text);
IEnumerable<SepReader.Row> enumerable = reader;
// Currently, most LINQ methods do not work for ref types. See below.
//
// The type 'SepReader.Row' may not be a ref struct or a type parameter
// allowing ref structs in order to use it as parameter 'TSource' in the
// generic type or method 'Enumerable.Select<TSource,
// TResult>(IEnumerable<TSource>, Func<TSource, TResult>)'
//
// enumerable.Select(row => row["Key"].ToString()).ToArray();

var text = """
           Key;Value
           A;1.1
           B;2.2
           """;
var expected = new (string Key, double Value)[] {
    ("A", 1.1),
    ("B", 2.2),
};

using var reader = Sep.Reader().FromText(text);
var actual = Enumerate(reader).ToArray();

CollectionAssert.AreEqual(expected, actual);

static IEnumerable<(string Key, double Value)> Enumerate(SepReader reader)
{
    foreach (var row in reader)
    {
        yield return (row["Key"].ToString(), row["Value"].Parse<double>());
    }
}

var text = """
           Key;Value
           A;1.1
           B;2.2
           """;
var expected = new (string Key, double Value)[] {
    ("A", 1.1),
    ("B", 2.2),
};

using var reader = Sep.Reader().FromText(text);
var actual = Enumerate(reader,
    row => (row["Key"].ToString(), row["Value"].Parse<double>()))
    .ToArray();

CollectionAssert.AreEqual(expected, actual);

static IEnumerable<T> Enumerate<T>(SepReader reader, SepReader.RowFunc<T> select)
{
    foreach (var row in reader)
    {
        yield return select(row);
    }
}

var text = """
           Key;Value
           A;1.1
           B;2.2
           """;
var expected = new (string Key, double Value)[] {
    ("B", 2.2),
};

using var reader = Sep.Reader().FromText(text);
var actual = reader.Enumerate(
    row => (row["Key"].ToString(), row["Value"].Parse<double>()))
    .Where(kv => kv.Item1.StartsWith('B'))
    .ToArray();

CollectionAssert.AreEqual(expected, actual);

var text = """
           Key;Value
           A;1.1
           B;2.2
           """;
var expected = new (string Key, double Value)[] {
    ("B", 2.2),
};

using var reader = Sep.Reader().FromText(text);
var actual = Enumerate(reader).ToArray();

CollectionAssert.AreEqual(expected, actual);

static IEnumerable<(string Key, double Value)> Enumerate(SepReader reader)
{
    foreach (var row in reader)
    {
        var keyCol = row["Key"];
        if (keyCol.Span.StartsWith("B"))
        {
            yield return (keyCol.ToString(), row["Value"].Parse<double>());
        }
    }
}

static IEnumerable<T> Enumerate<T>(this SepReader reader, SepReader.RowTryFunc<T> trySelect)
{
    foreach (var row in reader)
    {
        if (trySelect(row, out var value))
        {
            yield return value;
        }
    }
}

var text = """
           Key;Value
           A;1.1
           B;2.2
           """;
var expected = new (string Key, double Value)[] {
    ("B", 2.2),
};

using var reader = Sep.Reader().FromText(text);
var actual = reader.Enumerate((SepReader.Row row, out (string Key, double Value) kv) =>
{
    var keyCol = row["Key"];
    if (keyCol.Span.StartsWith("B"))
    {
        kv = (keyCol.ToString(), row["Value"].Parse<double>());
        return true;
    }
    kv = default;
    return false;
}).ToArray();

CollectionAssert.AreEqual(expected, actual);

using var reader = Sep.Reader().FromFile("very-long.csv");
var results = reader.ParallelEnumerate(ParseRow)
                    .AsParallel().AsOrdered()
                    .Select(LoadData) // Expensive load
                    .ToList();

using var writer = Sep.Writer(o => o).ToFile/ToText/To...;
foreach (var data in EnumerateData())
{
    using var row = writer.NewRow();
    var _ = row[colName/colNames].Set/Format<T>...;
    var _ = row[colIndex/colIndices].Set/Format<T>...;
}

/// <summary>
/// Specifies the separator used.
/// </summary>
public Sep Sep { get; init; }
/// <summary>
/// Specifies the culture used for parsing. 
/// May be `null` for default culture.
/// </summary>
public CultureInfo? CultureInfo { get; init; }
/// <summary>
/// Specifies whether to write a header row 
/// before data rows. Requires all columns 
/// to have a name. Otherwise, columns can be
/// added by indexing alone.
/// </summary>
public bool WriteHeader { get; init; } = true;
/// <summary>
/// Disables checking if column count is the 
/// same for all rows.
/// </summary>
/// <remarks>
/// When true, the <see cref="ColNotSetOption"/>
/// will define how columns that are not set
/// are handled. For example, whether to skip
/// or write an empty column if a column has
/// not been set for a given row.
/// <para>
/// If any columns are skipped, then columns of
/// a row may, therefore, be out of sync with
/// column names if <see cref="WriteHeader"/>
/// is true.
/// </para>
/// As such, any number of columns can be
/// written as long as done sequentially.
/// </remarks>
public bool DisableColCountCheck { get; init; } = false;
/// <summary>
/// Specifies how to handle columns that are 
/// not set.
/// </summary>
public SepColNotSetOption ColNotSetOption { get; init; } = SepColNotSetOption.Throw;
/// <summary>
/// Specifies whether to escape column names 
/// and values when writing.
/// </summary>
/// <remarks>
/// When true, if a column contains a separator 
/// (e.g. `;`), carriage return (`\r`), line 
/// feed (`\n` or quote (`"`) then the column 
/// is prefixed and suffixed with quotes `"` 
/// and any quote in the column is escaped by
/// adding an extra quote so it becomes `""`.
/// Note that escape applies to column names 
/// too, but only the written name.
/// </remarks>
public bool Escape { get; init; } = false;
/// <summary>
/// Forwarded to <see
/// cref="System.Threading.Tasks.ValueTask.ConfigureAwait(bool)"/> or
/// similar when async methods are called.
/// </summary>
public bool AsyncContinueOnCapturedContext { get; init; } = false;

var text = """
           A;B;C;D;E;F
           Sep;🚀;1;1.2;0.1;0.5
           CSV;✅;2;2.2;0.2;1.5
           
           """; // Empty line at end is for line ending

using var reader = await Sep.Reader().FromTextAsync(text);
await using var writer = reader.Spec.Writer().ToText();
await foreach (var readRow in reader)
{
    await using var writeRow = writer.NewRow(readRow);
}
Assert.AreEqual(text, writer.ToString());

75fcf875-017d-4579-bfd9-791d3e6767f0,2020-11-28T01:50:41.2449947+00:00,Akinzekeel.BlazorGrid,0.9.1-preview,2020-11-27T22:42:54.3100000+00:00,AvailableAssets,RuntimeAssemblies,,,net5.0,,,,,,lib/net5.0/BlazorGrid.dll,BlazorGrid.dll,.dll,lib,net5.0,.NETCoreApp,5.0.0.0,,,0.0.0.0
75fcf875-017d-4579-bfd9-791d3e6767f0,2020-11-28T01:50:41.2449947+00:00,Akinzekeel.BlazorGrid,0.9.1-preview,2020-11-27T22:42:54.3100000+00:00,AvailableAssets,CompileLibAssemblies,,,net5.0,,,,,,lib/net5.0/BlazorGrid.dll,BlazorGrid.dll,.dll,lib,net5.0,.NETCoreApp,5.0.0.0,,,0.0.0.0
75fcf875-017d-4579-bfd9-791d3e6767f0,2020-11-28T01:50:41.2449947+00:00,Akinzekeel.BlazorGrid,0.9.1-preview,2020-11-27T22:42:54.3100000+00:00,AvailableAssets,ResourceAssemblies,,,net5.0,,,,,,lib/net5.0/de/BlazorGrid.resources.dll,BlazorGrid.resources.dll,.dll,lib,net5.0,.NETCoreApp,5.0.0.0,,,0.0.0.0
75fcf875-017d-4579-bfd9-791d3e6767f0,2020-11-28T01:50:41.2449947+00:00,Akinzekeel.BlazorGrid,0.9.1-preview,2020-11-27T22:42:54.3100000+00:00,AvailableAssets,MSBuildFiles,,,any,,,,,,build/Microsoft.AspNetCore.StaticWebAssets.props,Microsoft.AspNetCore.StaticWebAssets.props,.props,build,any,Any,0.0.0.0,,,0.0.0.0
75fcf875-017d-4579-bfd9-791d3e6767f0,2020-11-28T01:50:41.2449947+00:00,Akinzekeel.BlazorGrid,0.9.1-preview,2020-11-27T22:42:54.3100000+00:00,AvailableAssets,MSBuildFiles,,,any,,,,,,build/Akinzekeel.BlazorGrid.props,Akinzekeel.BlazorGrid.props,.props,build,any,Any,0.0.0.0,,,0.0.0.0

using var reader = Sep.Reader(o => o with
{
    HasHeader = false,
    CreateToString = SepToString.PoolPerCol(maximumStringLength: 128),
})
.From(CreateReader());

Method	Scope	Rows	Mean	Ratio	MB	MB/s	ns/row	Allocated	Alloc Ratio
Sep______	Row	50000	3.531 ms	1.00	29	8236.4	70.6	1.01 KB	1.00
Sep_Async	Row	50000	3.778 ms	1.07	29	7698.2	75.6	1.01 KB	1.00
Sep_Unescape	Row	50000	3.520 ms	1.00	29	8263.0	70.4	1.13 KB	1.12
Sylvan___	Row	50000	4.298 ms	1.22	29	6766.8	86.0	7.65 KB	7.59
ReadLine_	Row	50000	21.890 ms	6.20	29	1328.7	437.8	88608.23 KB	87,921.34
CsvHelper	Row	50000	64.318 ms	18.22	29	452.2	1286.4	19.95 KB	19.79

Sep______	Cols	50000	4.921 ms	1.00	29	5911.1	98.4	1.01 KB	1.00
Sep_Unescape	Cols	50000	5.793 ms	1.18	29	5020.8	115.9	1.01 KB	1.00
Sylvan___	Cols	50000	8.024 ms	1.63	29	3625.1	160.5	7.65 KB	7.59
ReadLine_	Cols	50000	23.332 ms	4.74	29	1246.6	466.6	88608.23 KB	87,921.34
CsvHelper	Cols	50000	101.802 ms	20.69	29	285.7	2036.0	445.6 KB	442.15

Sep______	Asset	50000	39.836 ms	1.00	29	730.1	796.7	13803.05 KB	1.00
Sep_MT___	Asset	50000	29.563 ms	0.74	29	983.9	591.3	13875.06 KB	1.01
Sylvan___	Asset	50000	47.912 ms	1.20	29	607.1	958.2	13962.03 KB	1.01
ReadLine_	Asset	50000	131.577 ms	3.31	29	221.1	2631.5	102133.63 KB	7.40
CsvHelper	Asset	50000	122.181 ms	3.07	29	238.1	2443.6	13971.42 KB	1.01

Sep______	Asset	1000000	864.069 ms	1.00	581	673.4	864.1	266667.16 KB	1.00
Sep_MT___	Asset	1000000	516.021 ms	0.60	581	1127.6	516.0	276325.84 KB	1.04
Sylvan___	Asset	1000000	1,011.286 ms	1.17	581	575.4	1011.3	266824.48 KB	1.00
ReadLine_	Asset	1000000	2,850.125 ms	3.30	581	204.2	2850.1	2038834.76 KB	7.65
CsvHelper	Asset	1000000	2,579.496 ms	2.99	581	225.6	2579.5	266840.54 KB	1.00

Method	Scope	Rows	Mean	Ratio	MB	MB/s	ns/row	Allocated	Alloc Ratio
Sep______	Row	50000	3.501 ms	1.00	29	8334.3	70.0	1.01 KB	1.00
Sep_Async	Row	50000	3.748 ms	1.07	29	7785.1	75.0	1.01 KB	1.00
Sep_Unescape	Row	50000	3.489 ms	1.00	29	8364.7	69.8	1.01 KB	1.00
Sylvan___	Row	50000	4.436 ms	1.27	29	6578.6	88.7	7.65 KB	7.59
ReadLine_	Row	50000	18.126 ms	5.18	29	1609.9	362.5	88608.23 KB	87,921.34
CsvHelper	Row	50000	65.367 ms	18.69	29	446.4	1307.3	19.95 KB	19.79

Sep______	Cols	50000	4.800 ms	1.00	29	6079.7	96.0	1.01 KB	1.00
Sep_Unescape	Cols	50000	5.952 ms	1.24	29	4902.5	119.0	1.01 KB	1.00
Sylvan___	Cols	50000	8.572 ms	1.79	29	3404.3	171.4	7.65 KB	7.59
ReadLine_	Cols	50000	19.182 ms	4.00	29	1521.3	383.6	88608.23 KB	87,921.34
CsvHelper	Cols	50000	108.414 ms	22.59	29	269.2	2168.3	445.6 KB	442.15

Sep______	Asset	50000	52.283 ms	1.00	29	558.1	1045.7	13802.65 KB	1.00
Sep_MT___	Asset	50000	34.441 ms	0.66	29	847.3	688.8	13913.24 KB	1.01
Sylvan___	Asset	50000	53.960 ms	1.04	29	540.8	1079.2	13962.29 KB	1.01
ReadLine_	Asset	50000	210.735 ms	4.04	29	138.5	4214.7	102133.96 KB	7.40
CsvHelper	Asset	50000	131.644 ms	2.53	29	221.7	2632.9	13970.83 KB	1.01

Sep______	Asset	1000000	978.280 ms	1.00	583	596.7	978.3	266668.88 KB	1.00
Sep_MT___	Asset	1000000	515.844 ms	0.53	583	1131.7	515.8	267776.55 KB	1.00
Sylvan___	Asset	1000000	1,130.594 ms	1.16	583	516.4	1130.6	266825.13 KB	1.00
ReadLine_	Asset	1000000	3,155.567 ms	3.23	583	185.0	3155.6	2038835.23 KB	7.65
CsvHelper	Asset	1000000	2,669.767 ms	2.73	583	218.7	2669.8	266844.99 KB	1.00

Method	Scope	Rows	Mean	Ratio	MB	MB/s	ns/row	Allocated	Alloc Ratio
Sep______	Row	50000	2.230 ms	1.00	29	13088.4	44.6	1.09 KB	1.00
Sep_Async	Row	50000	2.379 ms	1.07	29	12264.0	47.6	1.02 KB	0.93
Sep_Unescape	Row	50000	2.305 ms	1.03	29	12657.6	46.1	1.02 KB	0.93
Sylvan___	Row	50000	2.993 ms	1.33	29	9750.2	59.9	7.65 KB	7.52
ReadLine_	Row	50000	12.106 ms	5.36	29	2410.5	242.1	88608.25 KB	87,077.59
CsvHelper	Row	50000	43.313 ms	19.19	29	673.7	866.3	20.04 KB	19.69

Sep______	Cols	50000	3.211 ms	1.00	29	9089.3	64.2	1.02 KB	1.00
Sep_Unescape	Cols	50000	3.845 ms	1.20	29	7589.1	76.9	1.02 KB	1.00
Sylvan___	Cols	50000	5.065 ms	1.58	29	5760.9	101.3	7.66 KB	7.52
ReadLine_	Cols	50000	12.850 ms	4.00	29	2270.9	257.0	88608.25 KB	86,910.78
CsvHelper	Cols	50000	68.999 ms	21.49	29	422.9	1380.0	445.85 KB	437.31

Sep______	Asset	50000	33.615 ms	1.00	29	868.1	672.3	13802.47 KB	1.00
Sep_MT___	Asset	50000	20.231 ms	0.60	29	1442.4	404.6	13992.1 KB	1.01
Sylvan___	Asset	50000	34.762 ms	1.03	29	839.5	695.2	13962.2 KB	1.01
ReadLine_	Asset	50000	97.204 ms	2.89	29	300.2	1944.1	102133.9 KB	7.40
CsvHelper	Asset	50000	83.550 ms	2.49	29	349.3	1671.0	13970.66 KB	1.01

Sep______	Asset	1000000	629.552 ms	1.00	583	927.3	629.6	266669.13 KB	1.00
Sep_MT___	Asset	1000000	261.089 ms	0.41	583	2236.0	261.1	267793.45 KB	1.00
Sylvan___	Asset	1000000	761.171 ms	1.21	583	767.0	761.2	266825.09 KB	1.00
ReadLine_	Asset	1000000	1,636.526 ms	2.60	583	356.7	1636.5	2038835.59 KB	7.65
CsvHelper	Asset	1000000	1,754.461 ms	2.79	583	332.7	1754.5	266833.16 KB	1.00

Method	Scope	Rows	Mean	Ratio	MB	MB/s	ns/row	Allocated	Alloc Ratio
Sep______	Row	50000	1.385 ms	1.00	29	21072.5	27.7	1.01 KB	1.00
Sep_Async	Row	50000	1.518 ms	1.10	29	19225.7	30.4	1.01 KB	1.00
Sep_Unescape	Row	50000	1.393 ms	1.01	29	20942.6	27.9	1.01 KB	1.00
Sylvan___	Row	50000	1.885 ms	1.36	29	15484.5	37.7	7.65 KB	7.59
ReadLine_	Row	50000	7.885 ms	5.69	29	3701.1	157.7	88608.23 KB	87,921.34
CsvHelper	Row	50000	23.848 ms	17.22	29	1223.6	477.0	19.95 KB	19.79

Sep______	Cols	50000	2.010 ms	1.00	29	14520.0	40.2	1.01 KB	1.00
Sep_Unescape	Cols	50000	2.366 ms	1.18	29	12332.1	47.3	1.01 KB	1.00
Sylvan___	Cols	50000	3.188 ms	1.59	29	9152.3	63.8	7.65 KB	7.59
ReadLine_	Cols	50000	8.349 ms	4.15	29	3495.3	167.0	88608.23 KB	87,921.34
CsvHelper	Cols	50000	43.794 ms	21.79	29	666.3	875.9	445.61 KB	442.15

Sep______	Asset	50000	24.029 ms	1.00	29	1214.4	480.6	13802.35 KB	1.00
Sep_MT___	Asset	50000	14.474 ms	0.60	29	2016.1	289.5	13994.5 KB	1.01
Sylvan___	Asset	50000	25.166 ms	1.05	29	1159.6	503.3	13962.14 KB	1.01
ReadLine_	Asset	50000	78.997 ms	3.29	29	369.4	1579.9	102133.85 KB	7.40
CsvHelper	Asset	50000	54.192 ms	2.26	29	538.5	1083.8	13973.22 KB	1.01

Sep______	Asset	1000000	441.913 ms	1.00	583	1321.0	441.9	266667.27 KB	1.00
Sep_MT___	Asset	1000000	186.231 ms	0.42	583	3134.7	186.2	268775.45 KB	1.01
Sylvan___	Asset	1000000	520.745 ms	1.18	583	1121.1	520.7	266824.38 KB	1.00
ReadLine_	Asset	1000000	1,377.806 ms	3.12	583	423.7	1377.8	2038834.84 KB	7.65
CsvHelper	Asset	1000000	1,173.256 ms	2.65	583	497.6	1173.3	266840.63 KB	1.00

Method	Scope	Rows	Mean	Ratio	MB	MB/s	ns/row	Allocated	Alloc Ratio
Sep______	Row	50000	3.972 ms	1.01	29	7323.2	79.4	952 B	1.00
Sep_Async	Row	50000	3.992 ms	1.01	29	7286.9	79.8	952 B	1.00
Sep_Unescape	Row	50000	4.902 ms	1.24	29	5933.7	98.0	952 B	1.00
Sylvan___	Row	50000	27.633 ms	7.01	29	1052.6	552.7	6692 B	7.03
ReadLine_	Row	50000	21.068 ms	5.34	29	1380.6	421.4	90734824 B	95,309.69
CsvHelper	Row	50000	58.651 ms	14.88	29	495.9	1173.0	20424 B	21.45

Sep______	Cols	50000	4.505 ms	1.00	29	6456.1	90.1	952 B	1.00
Sep_Unescape	Cols	50000	5.077 ms	1.13	29	5729.1	101.5	952 B	1.00
Sylvan___	Cols	50000	29.637 ms	6.58	29	981.4	592.7	6692 B	7.03
ReadLine_	Cols	50000	25.961 ms	5.77	29	1120.4	519.2	90734824 B	95,309.69
CsvHelper	Cols	50000	70.982 ms	15.76	29	409.8	1419.6	456296 B	479.30

Sep______	Asset	50000	39.331 ms	1.01	29	739.5	786.6	14133358 B	1.00
Sep_MT___	Asset	50000	32.270 ms	0.83	29	901.3	645.4	14228814 B	1.01
Sylvan___	Asset	50000	58.127 ms	1.49	29	500.4	1162.5	14295768 B	1.01
ReadLine_	Asset	50000	115.274 ms	2.95	29	252.3	2305.5	104585064 B	7.40
CsvHelper	Asset	50000	92.185 ms	2.36	29	315.5	1843.7	14305450 B	1.01

Sep______	Asset	1000000	752.281 ms	1.00	581	773.5	752.3	273067192 B	1.00
Sep_MT___	Asset	1000000	804.179 ms	1.07	581	723.6	804.2	287567112 B	1.05
Sylvan___	Asset	1000000	1,410.084 ms	1.88	581	412.7	1410.1	273226864 B	1.00
ReadLine_	Asset	1000000	3,592.746 ms	4.79	581	162.0	3592.7	2087766752 B	7.65
CsvHelper	Asset	1000000	2,322.007 ms	3.10	581	250.6	2322.0	273241184 B	1.00

Method	Scope	Rows	Mean	Ratio	MB	MB/s	ns/row	Allocated	Alloc Ratio
Sep______	Row	50000	5.786 ms	1.00	29	5043.2	115.7	952 B	1.00
Sep_Async	Row	50000	5.919 ms	1.02	29	4929.9	118.4	952 B	1.00
Sep_Unescape	Row	50000	5.527 ms	0.96	29	5280.2	110.5	952 B	1.00
Sylvan___	Row	50000	21.097 ms	3.65	29	1383.2	421.9	6653 B	6.99
ReadLine_	Row	50000	20.407 ms	3.53	29	1430.0	408.1	90734824 B	95,309.69
CsvHelper	Row	50000	54.870 ms	9.49	29	531.8	1097.4	20424 B	21.45

Sep______	Cols	50000	7.355 ms	1.00	29	3967.3	147.1	952 B	1.00
Sep_Unescape	Cols	50000	7.875 ms	1.07	29	3705.7	157.5	952 B	1.00
Sylvan___	Cols	50000	24.954 ms	3.39	29	1169.4	499.1	6656 B	6.99
ReadLine_	Cols	50000	20.826 ms	2.83	29	1401.2	416.5	90734827 B	95,309.69
CsvHelper	Cols	50000	88.817 ms	12.08	29	328.6	1776.3	456368 B	479.38

Sep______	Asset	50000	31.305 ms	1.00	29	932.2	626.1	14132992 B	1.00
Sep_MT___	Asset	50000	13.853 ms	0.44	29	2106.5	277.1	14184144 B	1.00
Sylvan___	Asset	50000	56.747 ms	1.81	29	514.2	1134.9	14295595 B	1.01
ReadLine_	Asset	50000	127.959 ms	4.09	29	228.1	2559.2	104584112 B	7.40
CsvHelper	Asset	50000	98.423 ms	3.14	29	296.5	1968.5	14305310 B	1.01

Sep______	Asset	1000000	790.081 ms	1.00	583	738.9	790.1	273063584 B	1.00
Sep_MT___	Asset	1000000	376.771 ms	0.48	583	1549.4	376.8	282250016 B	1.03
Sylvan___	Asset	1000000	1,234.977 ms	1.56	583	472.7	1235.0	273225232 B	1.00
ReadLine_	Asset	1000000	2,851.876 ms	3.61	583	204.7	2851.9	2087764592 B	7.65
CsvHelper	Asset	1000000	2,133.327 ms	2.70	583	273.6	2133.3	273234944 B	1.00

Method	Scope	Rows	Mean	Ratio	MB	MB/s	ns/row	Allocated	Alloc Ratio
Sep______	Asset	50000	33.24 ms	1.00	29	874.9	664.9	13.48 MB	1.00
Sep_MT___	Asset	50000	16.93 ms	0.51	29	1718.1	338.6	13.54 MB	1.00
Sylvan___	Asset	50000	41.02 ms	1.23	29	709.1	820.4	13.63 MB	1.01
ReadLine_	Asset	50000	59.34 ms	1.79	29	490.1	1186.9	99.74 MB	7.40
CsvHelper	Asset	50000	114.45 ms	3.44	29	254.1	2289.0	13.64 MB	1.01

Sep______	Asset	1000000	656.08 ms	1.00	581	886.9	656.1	260.41 MB	1.00
Sep_MT___	Asset	1000000	333.94 ms	0.51	581	1742.5	333.9	268.8 MB	1.03
Sylvan___	Asset	1000000	824.37 ms	1.26	581	705.8	824.4	260.57 MB	1.00
ReadLine_	Asset	1000000	1,231.05 ms	1.88	581	472.7	1231.1	1991.04 MB	7.65
CsvHelper	Asset	1000000	2,342.51 ms	3.57	581	248.4	2342.5	260.58 MB	1.00

Method	Scope	Rows	Mean	Ratio	MB	MB/s	ns/row	Allocated	Alloc Ratio
Sep______	Asset	50000	35.630 ms	1.00	29	819.0	712.6	13.48 MB	1.00
Sep_MT___	Asset	50000	8.892 ms	0.25	29	3281.6	177.8	13.57 MB	1.01
Sylvan___	Asset	50000	38.901 ms	1.09	29	750.1	778.0	13.63 MB	1.01
ReadLine_	Asset	50000	43.945 ms	1.23	29	664.0	878.9	99.74 MB	7.40
CsvHelper	Asset	50000	116.596 ms	3.27	29	250.3	2331.9	13.64 MB	1.01

Sep______	Asset	1000000	654.638 ms	1.00	583	891.8	654.6	260.41 MB	1.00
Sep_MT___	Asset	1000000	244.949 ms	0.37	583	2383.3	244.9	262.32 MB	1.01
Sylvan___	Asset	1000000	825.727 ms	1.26	583	707.0	825.7	260.57 MB	1.00
ReadLine_	Asset	1000000	968.707 ms	1.48	583	602.6	968.7	1991.04 MB	7.65
CsvHelper	Asset	1000000	2,364.922 ms	3.62	583	246.9	2364.9	260.58 MB	1.00

Method	Scope	Rows	Mean	Ratio	MB	MB/s	ns/row	Allocated	Alloc Ratio
Sep______	Asset	50000	20.951 ms	1.00	29	1392.9	419.0	13.48 MB	1.00
Sep_MT___	Asset	50000	6.614 ms	0.32	29	4411.8	132.3	13.64 MB	1.01
Sylvan___	Asset	50000	27.761 ms	1.33	29	1051.2	555.2	13.63 MB	1.01
ReadLine_	Asset	50000	33.516 ms	1.60	29	870.7	670.3	99.74 MB	7.40
CsvHelper	Asset	50000	77.007 ms	3.68	29	378.9	1540.1	13.64 MB	1.01

Sep______	Asset	1000000	432.887 ms	1.00	583	1348.6	432.9	260.41 MB	1.00
Sep_MT___	Asset	1000000	119.430 ms	0.28	583	4888.1	119.4	261.39 MB	1.00
Sylvan___	Asset	1000000	559.550 ms	1.29	583	1043.3	559.6	260.57 MB	1.00
ReadLine_	Asset	1000000	573.637 ms	1.33	583	1017.7	573.6	1991.05 MB	7.65
CsvHelper	Asset	1000000	1,537.602 ms	3.55	583	379.7	1537.6	260.58 MB	1.00

Method	Scope	Rows	Mean	Ratio	MB	MB/s	ns/row	Allocated	Alloc Ratio
Sep______	Asset	50000	14.152 ms	1.00	29	2062.0	283.0	13.48 MB	1.00
Sep_MT___	Asset	50000	3.460 ms	0.24	29	8434.1	69.2	13.65 MB	1.01
Sylvan___	Asset	50000	18.113 ms	1.28	29	1611.1	362.3	13.63 MB	1.01
ReadLine_	Asset	50000	18.960 ms	1.34	29	1539.1	379.2	99.74 MB	7.40
CsvHelper	Asset	50000	48.971 ms	3.46	29	595.9	979.4	13.64 MB	1.01

Sep______	Asset	1000000	289.503 ms	1.00	583	2016.5	289.5	260.41 MB	1.00
Sep_MT___	Asset	1000000	58.678 ms	0.20	583	9949.0	58.7	261.63 MB	1.00
Sylvan___	Asset	1000000	375.349 ms	1.30	583	1555.3	375.3	260.57 MB	1.00
ReadLine_	Asset	1000000	364.651 ms	1.26	583	1600.9	364.7	1991.04 MB	7.65
CsvHelper	Asset	1000000	999.550 ms	3.45	583	584.0	999.5	260.58 MB	1.00

Method	Scope	Rows	Mean	Ratio	MB	MB/s	ns/row	Allocated	Alloc Ratio
Sep______	Asset	50000	31.64 ms	1.01	29	919.3	632.8	13.48 MB	1.00
Sep_MT___	Asset	50000	23.46 ms	0.75	29	1239.8	469.2	13.65 MB	1.01
Sylvan___	Asset	50000	61.59 ms	1.96	29	472.2	1231.8	13.63 MB	1.01
ReadLine_	Asset	50000	53.87 ms	1.71	29	539.9	1077.4	99.74 MB	7.40
CsvHelper	Asset	50000	109.28 ms	3.48	29	266.2	2185.6	13.64 MB	1.01

Sep______	Asset	1000000	689.69 ms	1.00	581	843.7	689.7	260.41 MB	1.00
Sep_MT___	Asset	1000000	311.19 ms	0.45	581	1869.8	311.2	270.88 MB	1.04
Sylvan___	Asset	1000000	1,380.63 ms	2.01	581	421.5	1380.6	260.57 MB	1.00
ReadLine_	Asset	1000000	2,073.15 ms	3.02	581	280.7	2073.1	1991.05 MB	7.65
CsvHelper	Asset	1000000	2,448.67 ms	3.57	581	237.6	2448.7	260.58 MB	1.00

Method	Scope	Rows	Mean	Ratio	MB	MB/s	ns/row	Allocated	Alloc Ratio
Sep______	Asset	50000	32.59 ms	1.00	29	895.3	651.9	13.48 MB	1.00
Sep_MT___	Asset	50000	11.62 ms	0.36	29	2510.8	232.4	13.53 MB	1.00
Sylvan___	Asset	50000	54.88 ms	1.68	29	531.8	1097.5	13.63 MB	1.01
ReadLine_	Asset	50000	49.51 ms	1.52	29	589.4	990.2	99.74 MB	7.40
CsvHelper	Asset	50000	99.62 ms	3.06	29	292.9	1992.4	13.64 MB	1.01

Sep______	Asset	1000000	650.92 ms	1.00	583	896.9	650.9	260.41 MB	1.00
Sep_MT___	Asset	1000000	200.74 ms	0.31	583	2908.2	200.7	266.53 MB	1.02
Sylvan___	Asset	1000000	1,104.81 ms	1.70	583	528.4	1104.8	260.57 MB	1.00
ReadLine_	Asset	1000000	1,025.26 ms	1.58	583	569.4	1025.3	1991.04 MB	7.65
CsvHelper	Asset	1000000	2,089.05 ms	3.21	583	279.4	2089.1	260.58 MB	1.00

Method	Scope	Rows	Mean	Ratio	MB	MB/s	ns/row	Allocated	Alloc Ratio
Sep______	Row	50000	10.81 ms	1.00	33	3079.3	216.2	1.01 KB	1.00
Sep_Async	Row	50000	11.24 ms	1.04	33	2962.1	224.7	1.01 KB	1.00
Sep_Unescape	Row	50000	11.45 ms	1.06	33	2906.6	229.0	1.01 KB	1.00
Sylvan___	Row	50000	25.19 ms	2.33	33	1321.3	503.8	7.66 KB	7.60
ReadLine_	Row	50000	26.33 ms	2.44	33	1263.9	526.6	108778.73 KB	107,935.48
CsvHelper	Row	50000	78.33 ms	7.25	33	424.9	1566.6	20.02 KB	19.86

Sep______	Cols	50000	13.13 ms	1.00	33	2535.3	262.5	1.01 KB	1.00
Sep_Unescape	Cols	50000	13.97 ms	1.06	33	2382.3	279.4	1.01 KB	1.00
Sylvan___	Cols	50000	28.21 ms	2.15	33	1179.7	564.2	7.67 KB	7.61
ReadLine_	Cols	50000	27.63 ms	2.10	33	1204.5	552.6	108778.73 KB	107,935.48
CsvHelper	Cols	50000	106.12 ms	8.08	33	313.6	2122.4	445.68 KB	442.22

Sep______	Asset	50000	46.78 ms	1.00	33	711.5	935.6	13802.41 KB	1.00
Sep_MT___	Asset	50000	30.32 ms	0.65	33	1097.6	606.5	13869.65 KB	1.00
Sylvan___	Asset	50000	69.34 ms	1.48	33	480.0	1386.7	13962.04 KB	1.01
ReadLine_	Asset	50000	150.28 ms	3.21	33	221.5	3005.6	122304.69 KB	8.86
CsvHelper	Asset	50000	126.16 ms	2.70	33	263.8	2523.2	13971.27 KB	1.01

Sep______	Asset	1000000	973.20 ms	1.00	665	684.1	973.2	266667.22 KB	1.00
Sep_MT___	Asset	1000000	589.97 ms	0.61	665	1128.5	590.0	271570.43 KB	1.02
Sylvan___	Asset	1000000	1,404.92 ms	1.44	665	473.9	1404.9	266824.36 KB	1.00
ReadLine_	Asset	1000000	3,386.92 ms	3.48	665	196.6	3386.9	2442318.06 KB	9.16
CsvHelper	Asset	1000000	2,553.57 ms	2.62	665	260.7	2553.6	266834.87 KB	1.00

Method	Scope	Rows	Mean	Ratio	MB	MB/s	ns/row	Allocated	Alloc Ratio
Sep______	Row	50000	11.228 ms	1.00	33	2972.8	224.6	1.01 KB	1.00
Sep_Async	Row	50000	9.916 ms	0.88	33	3365.9	198.3	1.01 KB	1.00
Sep_Unescape	Row	50000	9.953 ms	0.89	33	3353.4	199.1	1.01 KB	1.00
Sylvan___	Row	50000	23.829 ms	2.12	33	1400.7	476.6	7.66 KB	7.60
ReadLine_	Row	50000	21.909 ms	1.95	33	1523.4	438.2	108778.73 KB	107,935.48
CsvHelper	Row	50000	71.571 ms	6.38	33	466.4	1431.4	19.95 KB	19.79

Sep______	Cols	50000	12.798 ms	1.00	33	2608.0	256.0	1.01 KB	1.00
Sep_Unescape	Cols	50000	13.689 ms	1.07	33	2438.2	273.8	1.01 KB	1.00
Sylvan___	Cols	50000	27.287 ms	2.13	33	1223.2	545.7	7.67 KB	7.61
ReadLine_	Cols	50000	23.201 ms	1.81	33	1438.6	464.0	108778.73 KB	107,935.48
CsvHelper	Cols	50000	104.298 ms	8.15	33	320.0	2086.0	445.6 KB	442.15

Sep______	Asset	50000	55.957 ms	1.00	33	596.5	1119.1	13802.68 KB	1.00
Sep_MT___	Asset	50000	44.668 ms	0.80	33	747.2	893.4	13934.89 KB	1.01
Sylvan___	Asset	50000	68.353 ms	1.22	33	488.3	1367.1	13961.88 KB	1.01
ReadLine_	Asset	50000	260.030 ms	4.65	33	128.4	5200.6	122304.52 KB	8.86
CsvHelper	Asset	50000	127.992 ms	2.29	33	260.8	2559.8	13971.32 KB	1.01

Sep______	Asset	1000000	1,145.307 ms	1.00	667	583.0	1145.3	266673.49 KB	1.00
Sep_MT___	Asset	1000000	696.277 ms	0.61	667	959.0	696.3	267979.84 KB	1.00
Sylvan___	Asset	1000000	1,499.974 ms	1.31	667	445.1	1500.0	266827.47 KB	1.00
ReadLine_	Asset	1000000	4,060.701 ms	3.55	667	164.4	4060.7	2442318 KB	9.16
CsvHelper	Asset	1000000	2,601.519 ms	2.27	667	256.7	2601.5	266839.95 KB	1.00

Method	Scope	Rows	Mean	Ratio	MB	MB/s	ns/row	Allocated	Alloc Ratio
Sep______	Row	50000	7.046 ms	1.00	33	4737.2	140.9	1.04 KB	1.00
Sep_Async	Row	50000	8.137 ms	1.15	33	4101.8	162.7	1.04 KB	1.00
Sep_Unescape	Row	50000	7.473 ms	1.06	33	4466.7	149.5	1.04 KB	1.00
Sylvan___	Row	50000	17.571 ms	2.38	33	1899.5	351.4	7.69 KB	7.41
ReadLine_	Row	50000	14.336 ms	1.94	33	2328.2	286.7	108778.75 KB	104,689.33
CsvHelper	Row	50000	52.672 ms	7.12	33	633.7	1053.4	20.05 KB	19.29

Sep______	Cols	50000	8.126 ms	1.00	33	4107.5	162.5	1.04 KB	1.00
Sep_Unescape	Cols	50000	9.748 ms	1.20	33	3424.0	195.0	1.05 KB	1.01
Sylvan___	Cols	50000	20.503 ms	2.52	33	1628.0	410.1	7.7 KB	7.39
ReadLine_	Cols	50000	16.513 ms	2.03	33	2021.3	330.3	108778.76 KB	104,394.99
CsvHelper	Cols	50000	74.224 ms	9.13	33	449.7	1484.5	445.85 KB	427.88

Sep______	Asset	50000	39.523 ms	1.00	33	844.5	790.5	13802.63 KB	1.00
Sep_MT___	Asset	50000	23.386 ms	0.59	33	1427.2	467.7	13981.76 KB	1.01
Sylvan___	Asset	50000	50.803 ms	1.29	33	657.0	1016.1	13962.08 KB	1.01
ReadLine_	Asset	50000	114.306 ms	2.89	33	292.0	2286.1	122304.45 KB	8.86
CsvHelper	Asset	50000	88.786 ms	2.25	33	375.9	1775.7	13970.43 KB	1.01

Sep______	Asset	1000000	752.681 ms	1.00	667	887.1	752.7	266669 KB	1.00
Sep_MT___	Asset	1000000	377.733 ms	0.50	667	1767.7	377.7	267992.5 KB	1.00
Sylvan___	Asset	1000000	1,091.345 ms	1.45	667	611.8	1091.3	266825.09 KB	1.00
ReadLine_	Asset	1000000	2,615.390 ms	3.47	667	255.3	2615.4	2442319.06 KB	9.16
CsvHelper	Asset	1000000	1,756.409 ms	2.33	667	380.2	1756.4	266839.53 KB	1.00

Method	Scope	Rows	Mean	Ratio	MB	MB/s	ns/row	Allocated	Alloc Ratio
Sep______	Row	50000	4.288 ms	1.00	33	7783.5	85.8	1.01 KB	1.00
Sep_Async	Row	50000	5.226 ms	1.22	33	6386.4	104.5	1.01 KB	1.00
Sep_Unescape	Row	50000	4.170 ms	0.97	33	8004.3	83.4	1.15 KB	1.14
Sylvan___	Row	50000	10.286 ms	2.40	33	3245.1	205.7	7.65 KB	7.59
ReadLine_	Row	50000	9.464 ms	2.21	33	3526.9	189.3	108778.73 KB	107,935.48
CsvHelper	Row	50000	27.086 ms	6.32	33	1232.3	541.7	19.95 KB	19.79

Sep______	Cols	50000	5.100 ms	1.00	33	6544.9	102.0	1.01 KB	1.00
Sep_Unescape	Cols	50000	5.496 ms	1.08	33	6073.5	109.9	1.01 KB	1.00
Sylvan___	Cols	50000	11.899 ms	2.33	33	2805.1	238.0	7.66 KB	7.60
ReadLine_	Cols	50000	10.023 ms	1.97	33	3330.1	200.5	108778.73 KB	107,935.48
CsvHelper	Cols	50000	40.244 ms	7.89	33	829.4	804.9	445.61 KB	442.15

Sep______	Asset	50000	28.037 ms	1.00	33	1190.5	560.7	13802.3 KB	1.00
Sep_MT___	Asset	50000	17.037 ms	0.61	33	1959.1	340.7	13989.51 KB	1.01
Sylvan___	Asset	50000	31.020 ms	1.11	33	1076.0	620.4	13962.02 KB	1.01
ReadLine_	Asset	50000	95.065 ms	3.39	33	351.1	1901.3	122304.75 KB	8.86
CsvHelper	Asset	50000	51.339 ms	1.83	33	650.1	1026.8	13970.75 KB	1.01

Sep______	Asset	1000000	519.607 ms	1.00	667	1285.0	519.6	266667.37 KB	1.00
Sep_MT___	Asset	1000000	221.654 ms	0.43	667	3012.4	221.7	270630.1 KB	1.01
Sylvan___	Asset	1000000	703.908 ms	1.35	667	948.6	703.9	266824.38 KB	1.00
ReadLine_	Asset	1000000	1,870.691 ms	3.60	667	356.9	1870.7	2442318.59 KB	9.16
CsvHelper	Asset	1000000	1,097.942 ms	2.11	667	608.1	1097.9	266832.53 KB	1.00

Method	Scope	Rows	Mean	Ratio	MB	MB/s	ns/row	Allocated	Alloc Ratio
Sep______	Row	50000	10.004 ms	1.01	33	3326.8	200.1	952 B	1.00
Sep_Async	Row	50000	8.591 ms	0.86	33	3874.3	171.8	952 B	1.00
Sep_Unescape	Row	50000	7.763 ms	0.78	33	4287.5	155.3	952 B	1.00
Sylvan___	Row	50000	23.401 ms	2.36	33	1422.2	468.0	6692 B	7.03
ReadLine_	Row	50000	27.778 ms	2.80	33	1198.1	555.6	111389416 B	117,005.69
CsvHelper	Row	50000	53.094 ms	5.34	33	626.9	1061.9	20424 B	21.45

Sep______	Cols	50000	11.885 ms	1.01	33	2800.2	237.7	952 B	1.00
Sep_Unescape	Cols	50000	12.821 ms	1.09	33	2596.0	256.4	952 B	1.00
Sylvan___	Cols	50000	27.213 ms	2.31	33	1223.0	544.3	6692 B	7.03
ReadLine_	Cols	50000	23.611 ms	2.00	33	1409.6	472.2	111389416 B	117,005.69
CsvHelper	Cols	50000	92.689 ms	7.86	33	359.1	1853.8	456296 B	479.30

Sep______	Asset	50000	40.423 ms	1.00	33	823.3	808.5	14134213 B	1.00
Sep_MT___	Asset	50000	36.395 ms	0.90	33	914.5	727.9	14211028 B	1.01
Sylvan___	Asset	50000	87.081 ms	2.16	33	382.2	1741.6	14295952 B	1.01
ReadLine_	Asset	50000	135.098 ms	3.35	33	246.4	2702.0	125239776 B	8.86
CsvHelper	Asset	50000	89.705 ms	2.23	33	371.0	1794.1	14305304 B	1.01

Sep______	Asset	1000000	1,023.915 ms	1.01	665	650.2	1023.9	273066968 B	1.00
Sep_MT___	Asset	1000000	901.079 ms	0.89	665	738.9	901.1	285049448 B	1.04
Sylvan___	Asset	1000000	1,455.283 ms	1.44	665	457.5	1455.3	273232840 B	1.00
ReadLine_	Asset	1000000	4,628.378 ms	4.58	665	143.9	4628.4	2500933560 B	9.16
CsvHelper	Asset	1000000	2,299.950 ms	2.28	665	289.5	2299.9	273242120 B	1.00

Method	Scope	Rows	Mean	Ratio	MB	MB/s	ns/row	Allocated	Alloc Ratio
Sep______	Row	50000	11.06 ms	1.00	33	3017.0	221.3	953 B	1.00
Sep_Async	Row	50000	11.38 ms	1.03	33	2934.3	227.5	954 B	1.00
Sep_Unescape	Row	50000	11.28 ms	1.02	33	2958.1	225.7	954 B	1.00
Sylvan___	Row	50000	23.17 ms	2.09	33	1440.4	463.4	6654 B	6.98
ReadLine_	Row	50000	24.39 ms	2.20	33	1368.6	487.8	111389416 B	116,882.91
CsvHelper	Row	50000	63.45 ms	5.74	33	526.0	1269.0	20424 B	21.43

Sep______	Cols	50000	12.67 ms	1.00	33	2634.1	253.4	952 B	1.00
Sep_Unescape	Cols	50000	13.86 ms	1.09	33	2408.9	277.1	954 B	1.00
Sylvan___	Cols	50000	27.54 ms	2.17	33	1211.8	550.9	6657 B	6.99
ReadLine_	Cols	50000	24.94 ms	1.97	33	1338.1	498.9	111389419 B	117,005.69
CsvHelper	Cols	50000	97.05 ms	7.66	33	343.9	1941.0	456368 B	479.38

Sep______	Asset	50000	38.12 ms	1.00	33	875.5	762.4	14132992 B	1.00
Sep_MT___	Asset	50000	15.19 ms	0.40	33	2198.0	303.7	14190126 B	1.00
Sylvan___	Asset	50000	58.84 ms	1.54	33	567.3	1176.8	14295595 B	1.01
ReadLine_	Asset	50000	135.98 ms	3.57	33	245.5	2719.6	125238788 B	8.86
CsvHelper	Asset	50000	106.50 ms	2.79	33	313.4	2130.1	14305310 B	1.01

Sep______	Asset	1000000	919.60 ms	1.00	667	726.1	919.6	273063640 B	1.00
Sep_MT___	Asset	1000000	392.61 ms	0.43	667	1700.7	392.6	275587208 B	1.01
Sylvan___	Asset	1000000	1,303.94 ms	1.42	667	512.1	1303.9	273225360 B	1.00
ReadLine_	Asset	1000000	3,503.86 ms	3.81	667	190.6	3503.9	2500932192 B	9.16
CsvHelper	Asset	1000000	2,309.99 ms	2.51	667	289.1	2310.0	273236680 B	1.00

Method	Scope	Rows	Mean	Ratio	MB	MB/s	ns/row	Allocated	Alloc Ratio
Sep______	Asset	50000	37.82 ms	1.00	33	880.1	756.3	13.48 MB	1.00
Sep_MT___	Asset	50000	19.95 ms	0.53	33	1668.2	399.0	13.53 MB	1.00
Sylvan___	Asset	50000	60.86 ms	1.61	33	546.8	1217.2	13.63 MB	1.01
ReadLine_	Asset	50000	65.12 ms	1.72	33	511.1	1302.3	119.44 MB	8.86
CsvHelper	Asset	50000	117.65 ms	3.11	33	282.9	2353.0	13.64 MB	1.01

Sep______	Asset	1000000	814.18 ms	1.00	665	817.8	814.2	260.41 MB	1.00
Sep_MT___	Asset	1000000	420.01 ms	0.52	665	1585.2	420.0	262.55 MB	1.01
Sylvan___	Asset	1000000	1,275.65 ms	1.57	665	521.9	1275.6	260.57 MB	1.00
ReadLine_	Asset	1000000	1,362.68 ms	1.67	665	488.6	1362.7	2385.07 MB	9.16
CsvHelper	Asset	1000000	2,362.46 ms	2.90	665	281.8	2362.5	260.58 MB	1.00

Method	Scope	Rows	Mean	Ratio	MB	MB/s	ns/row	Allocated	Alloc Ratio
Sep______	Asset	50000	39.09 ms	1.00	33	854.0	781.7	13.48 MB	1.00
Sep_MT___	Asset	50000	25.90 ms	0.66	33	1288.9	517.9	13.58 MB	1.01
Sylvan___	Asset	50000	59.92 ms	1.53	33	557.0	1198.4	13.63 MB	1.01
ReadLine_	Asset	50000	60.27 ms	1.54	33	553.8	1205.4	119.44 MB	8.86
CsvHelper	Asset	50000	111.54 ms	2.85	33	299.2	2230.8	13.64 MB	1.01

Sep______	Asset	1000000	810.33 ms	1.00	667	824.0	810.3	260.41 MB	1.00
Sep_MT___	Asset	1000000	433.80 ms	0.54	667	1539.2	433.8	261.43 MB	1.00
Sylvan___	Asset	1000000	1,216.78 ms	1.50	667	548.8	1216.8	260.57 MB	1.00
ReadLine_	Asset	1000000	1,079.99 ms	1.33	667	618.3	1080.0	2385.07 MB	9.16
CsvHelper	Asset	1000000	2,275.20 ms	2.81	667	293.5	2275.2	260.58 MB	1.00

Method	Scope	Rows	Mean	Ratio	MB	MB/s	ns/row	Allocated	Alloc Ratio
Sep______	Asset	50000	26.42 ms	1.00	33	1263.1	528.5	13.48 MB	1.00
Sep_MT___	Asset	50000	11.53 ms	0.44	33	2894.1	230.7	13.64 MB	1.01
Sylvan___	Asset	50000	43.05 ms	1.63	33	775.3	861.1	13.63 MB	1.01
ReadLine_	Asset	50000	37.30 ms	1.41	33	894.8	746.0	119.44 MB	8.86
CsvHelper	Asset	50000	78.91 ms	2.99	33	423.0	1578.1	13.64 MB	1.01

Sep______	Asset	1000000	538.48 ms	1.00	667	1240.0	538.5	260.43 MB	1.00
Sep_MT___	Asset	1000000	213.29 ms	0.40	667	3130.5	213.3	261.37 MB	1.00
Sylvan___	Asset	1000000	879.04 ms	1.63	667	759.6	879.0	260.57 MB	1.00
ReadLine_	Asset	1000000	642.57 ms	1.19	667	1039.1	642.6	2385.07 MB	9.16
CsvHelper	Asset	1000000	1,598.79 ms	2.97	667	417.6	1598.8	260.58 MB	1.00

Method	Scope	Rows	Mean	Ratio	MB	MB/s	ns/row	Allocated	Alloc Ratio
Sep______	Asset	50000	17.792 ms	1.00	33	1876.0	355.8	13.48 MB	1.00
Sep_MT___	Asset	50000	5.863 ms	0.33	33	5692.8	117.3	13.64 MB	1.01
Sylvan___	Asset	50000	27.020 ms	1.52	33	1235.3	540.4	13.63 MB	1.01
ReadLine_	Asset	50000	22.191 ms	1.25	33	1504.1	443.8	119.44 MB	8.86
CsvHelper	Asset	50000	46.946 ms	2.64	33	711.0	938.9	13.65 MB	1.01

Sep______	Asset	1000000	363.921 ms	1.00	667	1834.8	363.9	260.41 MB	1.00
Sep_MT___	Asset	1000000	104.427 ms	0.29	667	6394.0	104.4	261.51 MB	1.00
Sylvan___	Asset	1000000	541.503 ms	1.49	667	1233.1	541.5	260.57 MB	1.00
ReadLine_	Asset	1000000	422.719 ms	1.16	667	1579.6	422.7	2385.07 MB	9.16
CsvHelper	Asset	1000000	938.489 ms	2.58	667	711.5	938.5	260.58 MB	1.00

Method	Scope	Rows	Mean	Ratio	MB	MB/s	ns/row	Allocated	Alloc Ratio
Sep______	Asset	50000	38.27 ms	1.02	33	869.6	765.5	13.48 MB	1.00
Sep_MT___	Asset	50000	24.23 ms	0.65	33	1373.3	484.7	13.75 MB	1.02
Sylvan___	Asset	50000	78.94 ms	2.11	33	421.6	1578.8	13.63 MB	1.01
ReadLine_	Asset	50000	73.58 ms	1.97	33	452.3	1471.6	119.44 MB	8.86
CsvHelper	Asset	50000	127.06 ms	3.40	33	261.9	2541.3	13.64 MB	1.01

Sep______	Asset	1000000	896.49 ms	1.00	665	742.7	896.5	260.41 MB	1.00
Sep_MT___	Asset	1000000	388.68 ms	0.43	665	1713.0	388.7	271.08 MB	1.04
Sylvan___	Asset	1000000	1,703.56 ms	1.90	665	390.8	1703.6	260.57 MB	1.00
ReadLine_	Asset	1000000	3,773.61 ms	4.22	665	176.4	3773.6	2385.07 MB	9.16
CsvHelper	Asset	1000000	2,813.28 ms	3.14	665	236.7	2813.3	260.58 MB	1.00

Method	Scope	Rows	Mean	Ratio	MB	MB/s	ns/row	Allocated	Alloc Ratio
Sep______	Asset	50000	38.23 ms	1.00	33	873.2	764.5	13.48 MB	1.00
Sep_MT___	Asset	50000	14.94 ms	0.39	33	2234.7	298.7	13.54 MB	1.00
Sylvan___	Asset	50000	56.75 ms	1.48	33	588.1	1135.1	13.63 MB	1.01
ReadLine_	Asset	50000	56.10 ms	1.47	33	595.0	1122.0	119.44 MB	8.86
CsvHelper	Asset	50000	105.98 ms	2.77	33	314.9	2119.7	13.64 MB	1.01

Sep______	Asset	1000000	761.89 ms	1.00	667	876.4	761.9	260.42 MB	1.00
Sep_MT___	Asset	1000000	244.95 ms	0.32	667	2725.9	244.9	262.42 MB	1.01
Sylvan___	Asset	1000000	1,139.57 ms	1.50	667	585.9	1139.6	260.57 MB	1.00
ReadLine_	Asset	1000000	1,236.30 ms	1.62	667	540.1	1236.3	2385.07 MB	9.16
CsvHelper	Asset	1000000	2,151.47 ms	2.82	667	310.3	2151.5	260.58 MB	1.00

Method	Scope	Rows	Mean	Ratio	MB	MB/s	ns/row	Allocated	Alloc Ratio
Sep_	Cols	50000	12.98 ms	1.00	41	3211.7	259.5	1.01 KB	1.00
Sep_Trim	Cols	50000	19.39 ms	1.49	41	2148.8	387.9	1.01 KB	1.00
Sep_TrimUnescape	Cols	50000	19.45 ms	1.50	41	2142.7	389.0	1.01 KB	1.00
Sep_TrimUnescapeTrim	Cols	50000	21.53 ms	1.66	41	1935.4	430.7	1.01 KB	1.00
CsvHelper_TrimUnescape	Cols	50000	142.47 ms	10.98	41	292.5	2849.5	451.34 KB	447.84
CsvHelper_TrimUnescapeTrim	Cols	50000	141.73 ms	10.92	41	294.1	2834.5	445.68 KB	442.23

Method	Scope	Rows	Mean	Ratio	MB	MB/s	ns/row	Allocated	Alloc Ratio
Sep_	Cols	50000	13.76 ms	1.00	41	3036.5	275.1	1.01 KB	1.00
Sep_Trim	Cols	50000	18.25 ms	1.33	41	2289.2	364.9	1.01 KB	1.00
Sep_TrimUnescape	Cols	50000	18.43 ms	1.34	41	2266.6	368.6	1.01 KB	1.00
Sep_TrimUnescapeTrim	Cols	50000	21.16 ms	1.54	41	1974.2	423.2	1.01 KB	1.00
CsvHelper_TrimUnescape	Cols	50000	127.73 ms	9.29	41	327.0	2554.6	451.34 KB	447.84
CsvHelper_TrimUnescapeTrim	Cols	50000	126.60 ms	9.21	41	329.9	2532.1	445.68 KB	442.22

Method	Scope	Rows	Mean	Ratio	MB	MB/s	ns/row	Allocated	Alloc Ratio
Sep_	Cols	50000	9.467 ms	1.00	41	4412.2	189.3	1.05 KB	1.00
Sep_Trim	Cols	50000	12.972 ms	1.37	41	3219.9	259.4	1.06 KB	1.01
Sep_TrimUnescape	Cols	50000	13.630 ms	1.44	41	3064.5	272.6	1.06 KB	1.02
Sep_TrimUnescapeTrim	Cols	50000	15.502 ms	1.64	41	2694.4	310.0	1.07 KB	1.03
CsvHelper_TrimUnescape	Cols	50000	98.444 ms	10.40	41	424.3	1968.9	451.52 KB	431.70
CsvHelper_TrimUnescapeTrim	Cols	50000	97.110 ms	10.26	41	430.1	1942.2	445.86 KB	426.29

Method	Scope	Rows	Mean	Ratio	MB	MB/s	ns/row	Allocated	Alloc Ratio
Sep_	Cols	50000	5.434 ms	1.00	41	7687.0	108.7	1.01 KB	1.00
Sep_Trim	Cols	50000	7.906 ms	1.46	41	5283.2	158.1	1.01 KB	1.00
Sep_TrimUnescape	Cols	50000	8.541 ms	1.57	41	4890.5	170.8	1.01 KB	1.00
Sep_TrimUnescapeTrim	Cols	50000	9.059 ms	1.67	41	4610.7	181.2	1.01 KB	1.00
CsvHelper_TrimUnescape	Cols	50000	61.560 ms	11.33	41	678.5	1231.2	451.27 KB	447.77
CsvHelper_TrimUnescapeTrim	Cols	50000	60.812 ms	11.19	41	686.9	1216.2	445.6 KB	442.15

Method	Scope	Rows	Mean	Ratio	MB	MB/s	ns/row	Allocated	Alloc Ratio
Sep_	Cols	50000	12.36 ms	1.01	41	3373.0	247.1	952 B	1.00
Sep_Trim	Cols	50000	19.17 ms	1.56	41	2174.4	383.3	952 B	1.00
Sep_TrimUnescape	Cols	50000	20.35 ms	1.66	41	2047.8	407.0	952 B	1.00
Sep_TrimUnescapeTrim	Cols	50000	17.07 ms	1.39	41	2441.6	341.4	952 B	1.00
CsvHelper_TrimUnescape	Cols	50000	110.49 ms	8.99	41	377.2	2209.7	462096 B	485.39
CsvHelper_TrimUnescapeTrim	Cols	50000	130.51 ms	10.62	41	319.3	2610.1	456368 B	479.38

Method	Scope	Rows	Mean	Ratio	MB	MB/s	ns/row	Allocated	Alloc Ratio
Sep_	Cols	50000	14.19 ms	1.00	41	2942.7	283.9	954 B	1.00
Sep_Trim	Cols	50000	18.47 ms	1.30	41	2261.5	369.4	955 B	1.00
Sep_TrimUnescape	Cols	50000	19.41 ms	1.37	41	2152.0	388.2	955 B	1.00
Sep_TrimUnescapeTrim	Cols	50000	20.91 ms	1.47	41	1997.4	418.3	952 B	1.00
CsvHelper_TrimUnescape	Cols	50000	120.00 ms	8.45	41	348.1	2400.0	462174 B	484.46
CsvHelper_TrimUnescapeTrim	Cols	50000	115.80 ms	8.16	41	360.7	2316.1	459458 B	481.61

GT_Feature0;GT_Feature1;GT_Feature2;GT_Feature3;GT_Feature4;GT_Feature5;GT_Feature6;GT_Feature7;GT_Feature8;GT_Feature9;GT_Feature10;GT_Feature11;GT_Feature12;GT_Feature13;GT_Feature14;GT_Feature15;GT_Feature16;GT_Feature17;GT_Feature18;GT_Feature19;RE_Feature0;RE_Feature1;RE_Feature2;RE_Feature3;RE_Feature4;RE_Feature5;RE_Feature6;RE_Feature7;RE_Feature8;RE_Feature9;RE_Feature10;RE_Feature11;RE_Feature12;RE_Feature13;RE_Feature14;RE_Feature15;RE_Feature16;RE_Feature17;RE_Feature18;RE_Feature19
0.52276427;0.16843422;0.26259267;0.7244084;0.51292276;0.17365117;0.76125056;0.23458846;0.2573214;0.50560355;0.3202332;0.3809696;0.26024464;0.5174511;0.035318818;0.8141374;0.57719684;0.3974705;0.15219308;0.09011261;0.70515215;0.81618196;0.5399706;0.044147138;0.7111546;0.14776127;0.90621275;0.6925897;0.5164137;0.18637845;0.041509967;0.30819967;0.5831603;0.8210651;0.003954861;0.535722;0.8051845;0.7483589;0.3845737;0.14911908
0.6264564;0.11517637;0.24996082;0.77242833;0.2896067;0.6481459;0.14364648;0.044498358;0.6045593;0.51591337;0.050794687;0.42036617;0.7065823;0.6284636;0.21844554;0.013253775;0.36516154;0.2674384;0.06866083;0.71817476;0.07094294;0.46409357;0.012033525;0.7978093;0.43917948;0.5134962;0.4995968;0.008952909;0.82883793;0.012896823;0.0030740085;0.063773096;0.6541431;0.034539033;0.9135142;0.92897075;0.46119377;0.37533295;0.61660606;0.044443816
0.7922863;0.5323656;0.400699;0.29737252;0.9072584;0.58673894;0.73510516;0.019412167;0.88168067;0.9576787;0.33283427;0.7107;0.1623628;0.10314285;0.4521515;0.33324885;0.7761104;0.14854911;0.13469358;0.21566042;0.59166247;0.5128394;0.98702157;0.766223;0.67204326;0.7149494;0.2894748;0.55206;0.9898286;0.65083236;0.02421702;0.34540752;0.92906284;0.027142895;0.21974725;0.26544374;0.03848049;0.2161237;0.59233844;0.42221397
0.10609442;0.32130885;0.32383907;0.7511514;0.8258279;0.00904226;0.0420841;0.84049565;0.8958947;0.23807365;0.92621964;0.8452882;0.2794469;0.545344;0.63447595;0.62532926;0.19230893;0.29726416;0.18304513;0.029583583;0.23084833;0.93346167;0.98742676;0.78163713;0.13521992;0.8833956;0.18670778;0.29476836;0.5599867;0.5562107;0.7124796;0.121927656;0.5981778;0.39144602;0.88092715;0.4449142;0.34820423;0.96379805;0.46364686;0.54301775

using var reader = Sep.Reader().From(Reader.CreateReader());

var groundTruthColNames = reader.Header.NamesStartingWith("GT_");
var resultColNames = groundTruthColNames.Select(n =>
    n.Replace("GT_", "RE_", StringComparison.Ordinal))
    .ToArray();

var sum = 0.0;
var count = 0;
foreach (var row in reader)
{
    var gts = row[groundTruthColNames].Parse<float>();
    var res = row[resultColNames].Parse<float>();

    sum += MeanSquaredError(gts, res);
    ++count;
}
return sum / count;

Method	Scope	Rows	Mean	Ratio	MB	MB/s	ns/row	Allocated	Alloc Ratio
Sep______	Row	25000	3.002 ms	1.00	20	6753.9	120.1	1.24 KB	1.00
Sylvan___	Row	25000	3.305 ms	1.10	20	6133.3	132.2	10.7 KB	8.61
ReadLine_	Row	25000	18.502 ms	6.16	20	1095.7	740.1	73489.62 KB	59,161.45
CsvHelper	Row	25000	37.670 ms	12.55	20	538.1	1506.8	19.95 KB	16.06

Sep______	Cols	25000	4.076 ms	1.00	20	4973.3	163.0	1.24 KB	1.00
Sylvan___	Cols	25000	5.792 ms	1.42	20	3500.2	231.7	10.71 KB	8.62
ReadLine_	Cols	25000	18.372 ms	4.51	20	1103.4	734.9	73489.62 KB	59,161.45
CsvHelper	Cols	25000	40.450 ms	9.92	20	501.2	1618.0	21340.16 KB	17,179.50

Sep______	Floats	25000	31.470 ms	1.00	20	644.2	1258.8	7.89 KB	1.00
Sep_MT___	Floats	25000	12.902 ms	0.41	20	1571.2	516.1	68.47 KB	8.68
Sylvan___	Floats	25000	82.451 ms	2.62	20	245.9	3298.0	21.71 KB	2.75
ReadLine_	Floats	25000	110.689 ms	3.52	20	183.1	4427.6	73492.96 KB	9,313.96
CsvHelper	Floats	25000	157.042 ms	4.99	20	129.1	6281.7	22061.51 KB	2,795.91

Method	Scope	Rows	Mean	Ratio	MB	MB/s	ns/row	Allocated	Alloc Ratio
Sep______	Row	25000	3.090 ms	1.00	20	6576.8	123.6	1.24 KB	1.00
Sylvan___	Row	25000	3.662 ms	1.19	20	5548.9	146.5	10.7 KB	8.61
ReadLine_	Row	25000	14.759 ms	4.78	20	1376.7	590.4	73489.62 KB	59,161.45
CsvHelper	Row	25000	40.346 ms	13.06	20	503.6	1613.9	19.95 KB	16.06

Sep______	Cols	25000	4.244 ms	1.00	20	4787.9	169.8	1.24 KB	1.00
Sylvan___	Cols	25000	6.501 ms	1.53	20	3125.5	260.1	10.7 KB	8.61
ReadLine_	Cols	25000	15.460 ms	3.64	20	1314.3	618.4	73489.62 KB	59,161.45
CsvHelper	Cols	25000	42.710 ms	10.06	20	475.8	1708.4	21340.16 KB	17,179.50

Sep______	Floats	25000	30.251 ms	1.00	20	671.7	1210.1	7.89 KB	1.00
Sep_MT___	Floats	25000	6.924 ms	0.23	20	2934.7	277.0	111.53 KB	14.13
Sylvan___	Floats	25000	78.705 ms	2.60	20	258.2	3148.2	18.7 KB	2.37
ReadLine_	Floats	25000	102.918 ms	3.40	20	197.4	4116.7	73492.94 KB	9,313.96
CsvHelper	Floats	25000	156.097 ms	5.16	20	130.2	6243.9	22061.22 KB	2,795.88

Method	Scope	Rows	Mean	Ratio	MB	MB/s	ns/row	Allocated	Alloc Ratio
Sep______	Row	25000	2.013 ms	1.00	20	10093.4	80.5	1.25 KB	1.00
Sylvan___	Row	25000	2.355 ms	1.17	20	8627.4	94.2	10.7 KB	8.56
ReadLine_	Row	25000	9.787 ms	4.86	20	2076.1	391.5	73489.63 KB	58,791.71
CsvHelper	Row	25000	25.143 ms	12.49	20	808.2	1005.7	20 KB	16.00

Sep______	Cols	25000	2.666 ms	1.00	20	7622.2	106.6	1.25 KB	1.00
Sylvan___	Cols	25000	3.702 ms	1.39	20	5488.4	148.1	10.71 KB	8.54
ReadLine_	Cols	25000	10.544 ms	3.96	20	1927.1	421.8	73489.63 KB	58,654.23
CsvHelper	Cols	25000	27.442 ms	10.29	20	740.5	1097.7	21340.34 KB	17,032.36

Sep______	Floats	25000	20.297 ms	1.00	20	1001.1	811.9	7.97 KB	1.00
Sep_MT___	Floats	25000	3.780 ms	0.19	20	5375.6	151.2	179.49 KB	22.51
Sylvan___	Floats	25000	52.343 ms	2.58	20	388.2	2093.7	18.88 KB	2.37
ReadLine_	Floats	25000	68.698 ms	3.38	20	295.8	2747.9	73493.12 KB	9,215.89
CsvHelper	Floats	25000	100.913 ms	4.97	20	201.4	4036.5	22061.69 KB	2,766.49

Method	Scope	Rows	Mean	Ratio	MB	MB/s	ns/row	Allocated	Alloc Ratio
Sep______	Row	25000	1.265 ms	1.00	20	16063.2	50.6	1.24 KB	1.00
Sylvan___	Row	25000	1.624 ms	1.28	20	12511.4	65.0	10.75 KB	8.66
ReadLine_	Row	25000	6.545 ms	5.17	20	3104.8	261.8	73489.62 KB	59,161.45
CsvHelper	Row	25000	14.820 ms	11.72	20	1371.1	592.8	19.95 KB	16.06

Sep______	Cols	25000	1.929 ms	1.00	20	10533.1	77.2	1.24 KB	1.00
Sylvan___	Cols	25000	2.589 ms	1.34	20	7850.0	103.5	10.7 KB	8.61
ReadLine_	Cols	25000	6.814 ms	3.53	20	2982.2	272.5	73489.62 KB	59,161.45
CsvHelper	Cols	25000	15.995 ms	8.29	20	1270.4	639.8	21340.17 KB	17,179.50

Sep______	Floats	25000	13.965 ms	1.00	20	1455.0	558.6	7.89 KB	1.00
Sep_MT___	Floats	25000	2.049 ms	0.15	20	9918.5	81.9	178.98 KB	22.68
Sylvan___	Floats	25000	35.057 ms	2.51	20	579.6	1402.3	18.67 KB	2.37
ReadLine_	Floats	25000	47.821 ms	3.42	20	424.9	1912.8	73492.95 KB	9,311.65
CsvHelper	Floats	25000	66.495 ms	4.76	20	305.6	2659.8	22061.22 KB	2,795.19

Method	Scope	Rows	Mean	Ratio	MB	MB/s	ns/row	Allocated	Alloc Ratio
Sep______	Row	25000	3.546 ms	1.00	20	5716.9	141.8	1.16 KB	1.00
Sylvan___	Row	25000	21.472 ms	6.08	20	944.1	858.9	10.36 KB	8.90
ReadLine_	Row	25000	19.918 ms	5.64	20	1017.8	796.7	73489.62 KB	63,132.02
CsvHelper	Row	25000	37.422 ms	10.59	20	541.7	1496.9	19.95 KB	17.13

Sep______	Cols	25000	3.986 ms	1.01	20	5085.7	159.4	1.16 KB	1.00
Sylvan___	Cols	25000	24.931 ms	6.29	20	813.1	997.2	10.52 KB	9.04
ReadLine_	Cols	25000	17.889 ms	4.51	20	1133.2	715.6	73489.62 KB	63,132.02
CsvHelper	Cols	25000	47.480 ms	11.98	20	427.0	1899.2	21340.16 KB	18,332.49

Sep______	Floats	25000	34.253 ms	1.02	20	591.8	1370.1	7.81 KB	1.00
Sep_MT___	Floats	25000	17.345 ms	0.52	20	1168.7	693.8	101.17 KB	12.95
Sylvan___	Floats	25000	87.013 ms	2.60	20	233.0	3480.5	18.31 KB	2.34
ReadLine_	Floats	25000	101.080 ms	3.01	20	200.6	4043.2	73492.94 KB	9,407.10
CsvHelper	Floats	25000	116.872 ms	3.49	20	173.5	4674.9	22061.55 KB	2,823.88

Method	Scope	Rows	Mean	Ratio	MB	MB/s	ns/row	Allocated	Alloc Ratio
Sep______	Row	25000	3.295 ms	1.00	20	6166.2	131.8	1.16 KB	1.00
Sylvan___	Row	25000	23.661 ms	7.18	20	858.8	946.4	10.32 KB	8.86
ReadLine_	Row	25000	16.952 ms	5.14	20	1198.6	678.1	73489.62 KB	63,132.02
CsvHelper	Row	25000	33.251 ms	10.09	20	611.1	1330.0	20.02 KB	17.19

Sep______	Cols	25000	4.695 ms	1.00	20	4327.6	187.8	1.16 KB	1.00
Sylvan___	Cols	25000	26.819 ms	5.71	20	757.6	1072.8	10.32 KB	8.87
ReadLine_	Cols	25000	17.588 ms	3.75	20	1155.3	703.5	73489.62 KB	63,132.02
CsvHelper	Cols	25000	36.000 ms	7.67	20	564.4	1440.0	21340.16 KB	18,332.49

Sep______	Floats	25000	29.130 ms	1.00	20	697.6	1165.2	7.81 KB	1.00
Sep_MT___	Floats	25000	8.689 ms	0.30	20	2338.6	347.6	86.84 KB	11.12
Sylvan___	Floats	25000	86.914 ms	2.98	20	233.8	3476.6	18.31 KB	2.34
ReadLine_	Floats	25000	94.119 ms	3.23	20	215.9	3764.7	73492.94 KB	9,407.10
CsvHelper	Floats	25000	129.945 ms	4.46	20	156.4	5197.8	22060.98 KB	2,823.81

var text = """
           A;B;C;D;E;F
           Sep;🚀;1;1.2;0.1;0.5
           CSV;✅;2;2.2;0.2;1.5
           
           """; // Empty line at end is for line ending

using var reader = Sep.Reader().FromText(text);
using var writer = reader.Spec.Writer().ToText();
foreach (var readRow in reader)
{
    using var writeRow = writer.NewRow(readRow);
}
Assert.AreEqual(text, writer.ToString());

var text = """
           A;B;C;D;E;F
           Sep;🚀;1;1.2;0.1;0.5
           CSV;✅;2;2.2;0.2;1.5
           
           """; // Empty line at end is for line ending

using var reader = await Sep.Reader().FromTextAsync(text);
await using var writer = reader.Spec.Writer().ToText();
await foreach (var readRow in reader)
{
    await using var writeRow = writer.NewRow(readRow);
}
Assert.AreEqual(text, writer.ToString());

var text = """
           A
           1
           2

           3


           4
           
           """; // Empty line at end is for line ending
var expected = new[] { 1, 2, 3, 4 };

// Disable col count check to allow empty rows
using var reader = Sep.Reader(o => o with { DisableColCountCheck = true }).FromText(text);
var actual = new List<int>();
foreach (var row in reader)
{
    // Skip empty row
    if (row.Span.Length == 0) { continue; }

    actual.Add(row["A"].Parse<int>());
}
CollectionAssert.AreEqual(expected, actual);

var text = """
           C
           1
           2
           """;

using var reader = Sep.Reader().FromText(text);
var squaredSum = 0;
// Use Enumerate to avoid referencing SepReader.Row in async context
foreach (var value in reader.Enumerate(row => row["C"].Parse<int>()))
{
    squaredSum += await Task.Run(() => value * value);
}
Assert.AreEqual(5, squaredSum);

var text = """
           C
           1
           2
           """;

using var reader = Sep.Reader().FromText(text);
var squaredSum = 0;
// Use custom local function Enumerate to avoid referencing
// SepReader.Row in async context
foreach (var value in Enumerate(reader))
{
    squaredSum += await Task.Run(() => value * value);
}
Assert.AreEqual(5, squaredSum);

static IEnumerable<int> Enumerate(SepReader reader)
{
    foreach (var r in reader) { yield return r["C"].Parse<int>(); }
}

var text = """
           # Comment 1
           # Comment 2
           A
           # Comment 3
           1
           2
           # Comment 4
           """;

const char Comment = '#';

using var textReader = new StringReader(text);
// Skip initial lines (not rows) before header
while (textReader.Peek() == Comment &&
       textReader.ReadLine() is string line) { }

using var reader = Sep.Reader().From(textReader);
var values = new List<int>();
foreach (var row in reader)
{
    // Skip rows starting with comment
    if (row.Span.StartsWith([Comment])) { continue; }

    var value = row["A"].Parse<int>();
    values.Add(value);
}
CollectionAssert.AreEqual(new int[] { 1, 2 }, values);

file = [header CRLF] record *(CRLF record) [CRLF]
header = name *(COMMA name)
record = field *(COMMA field)
name = field
field = (escaped / non-escaped)
escaped = DQUOTE *(TEXTDATA / COMMA / CR / LF / 2DQUOTE) DQUOTE
non-escaped = *TEXTDATA
COMMA = %x2C
CR = %x0D ;as per section 6.1 of RFC 2234 [2]
DQUOTE =  %x22 ;as per section 6.1 of RFC 2234 [2]
LF = %x0A ;as per section 6.1 of RFC 2234 [2]
CRLF = CR LF ;as per section 6.1 of RFC 2234 [2]
TEXTDATA =  %x20-21 / %x23-2B / %x2D-7E

[assembly: System.CLSCompliant(false)]
[assembly: System.Reflection.AssemblyMetadata("IsTrimmable", "True")]
[assembly: System.Reflection.AssemblyMetadata("RepositoryUrl", "https://github.com/nietras/Sep/")]
[assembly: System.Resources.NeutralResourcesLanguage("en")]
[assembly: System.Runtime.CompilerServices.InternalsVisibleTo("Sep.Benchmarks")]
[assembly: System.Runtime.CompilerServices.InternalsVisibleTo("Sep.ComparisonBenchmarks")]
[assembly: System.Runtime.CompilerServices.InternalsVisibleTo("Sep.Test")]
[assembly: System.Runtime.CompilerServices.InternalsVisibleTo("Sep.XyzTest")]
[assembly: System.Runtime.Versioning.TargetFramework(".NETCoreApp,Version=v9.0", FrameworkDisplayName=".NET 9.0")]
namespace nietras.SeparatedValues
{
    public readonly struct Sep : System.IEquatable<nietras.SeparatedValues.Sep>
    {
        public Sep() { }
        public Sep(char separator) { }
        public char Separator { get; init; }
        public static nietras.SeparatedValues.Sep? Auto { get; }
        public static nietras.SeparatedValues.Sep Default { get; }
        public static nietras.SeparatedValues.Sep New(char separator) { }
        public static nietras.SeparatedValues.SepReaderOptions Reader() { }
        public static nietras.SeparatedValues.SepReaderOptions Reader(System.Func<nietras.SeparatedValues.SepReaderOptions, nietras.SeparatedValues.SepReaderOptions> configure) { }
        public static nietras.SeparatedValues.SepWriterOptions Writer() { }
        public static nietras.SeparatedValues.SepWriterOptions Writer(System.Func<nietras.SeparatedValues.SepWriterOptions, nietras.SeparatedValues.SepWriterOptions> configure) { }
    }
    public enum SepColNotSetOption : byte
    {
        Throw = 0,
        Empty = 1,
        Skip = 2,
    }
    public delegate nietras.SeparatedValues.SepToString SepCreateToString(nietras.SeparatedValues.SepReaderHeader? maybeHeader, int colCount);
    public static class SepDefaults
    {
        public static System.StringComparer ColNameComparer { get; }
        public static System.Globalization.CultureInfo CultureInfo { get; }
        public static char Separator { get; }
    }
    [System.Diagnostics.DebuggerDisplay("{DebuggerDisplay,nq}")]
    public sealed class SepReader : nietras.SeparatedValues.SepReaderState, System.Collections.Generic.IAsyncEnumerable<nietras.SeparatedValues.SepReader.Row>, System.Collections.Generic.IEnumerable<nietras.SeparatedValues.SepReader.Row>, System.Collections.Generic.IEnumerator<nietras.SeparatedValues.SepReader.Row>, System.Collections.IEnumerable, System.Collections.IEnumerator, System.IDisposable
    {
        public nietras.SeparatedValues.SepReader.Row Current { get; }
        public bool HasHeader { get; }
        public bool HasRows { get; }
        public nietras.SeparatedValues.SepReaderHeader Header { get; }
        public bool IsEmpty { get; }
        public nietras.SeparatedValues.SepSpec Spec { get; }
        public nietras.SeparatedValues.SepReader.AsyncEnumerator GetAsyncEnumerator(System.Threading.CancellationToken cancellationToken = default) { }
        public nietras.SeparatedValues.SepReader GetEnumerator() { }
        public bool MoveNext() { }
        public System.Threading.Tasks.ValueTask<bool> MoveNextAsync(System.Threading.CancellationToken cancellationToken = default) { }
        public string ToString(int index) { }
        public readonly struct AsyncEnumerator : System.Collections.Generic.IAsyncEnumerator<nietras.SeparatedValues.SepReader.Row>, System.IAsyncDisposable
        {
            public nietras.SeparatedValues.SepReader.Row Current { get; }
            public System.Threading.Tasks.ValueTask DisposeAsync() { }
            public System.Threading.Tasks.ValueTask<bool> MoveNextAsync() { }
        }
        [System.Diagnostics.DebuggerDisplay("{DebuggerDisplay}")]
        public readonly ref struct Col
        {
            public System.ReadOnlySpan<char> Span { get; }
            public T Parse<T>()
                where T : System.ISpanParsable<T> { }
            public override string ToString() { }
            public T? TryParse<T>()
                where T :  struct, System.ISpanParsable<T> { }
            public bool TryParse<T>(out T value)
                where T : System.ISpanParsable<T> { }
        }
        public readonly ref struct Cols
        {
            public int Count { get; }
            public nietras.SeparatedValues.SepReader.Col this[int index] { get; }
            public string CombinePathsToString() { }
            public System.ReadOnlySpan<char> Join(System.ReadOnlySpan<char> separator) { }
            public string JoinPathsToString() { }
            public string JoinToString(System.ReadOnlySpan<char> separator) { }
            public System.Span<T> Parse<T>()
                where T : System.ISpanParsable<T> { }
            public void Parse<T>(System.Span<T> span)
                where T : System.ISpanParsable<T> { }
            public T[] ParseToArray<T>()
                where T : System.ISpanParsable<T> { }
            public System.Span<T> Select<T>(method selector) { }
            public System.Span<T> Select<T>(nietras.SeparatedValues.SepReader.ColFunc<T> selector) { }
            public System.Span<string> ToStrings() { }
            public string[] ToStringsArray() { }
            public System.Span<T?> TryParse<T>()
                where T :  struct, System.ISpanParsable<T> { }
            public void TryParse<T>(System.Span<T?> span)
                where T :  struct, System.ISpanParsable<T> { }
        }
        [System.Diagnostics.DebuggerDisplay("{DebuggerDisplayPrefix,nq}{Span}")]
        [System.Diagnostics.DebuggerTypeProxy(typeof(nietras.SeparatedValues.SepReader.Row.DebugView))]
        public readonly ref struct Row
        {
            public int ColCount { get; }
            public nietras.SeparatedValues.SepReader.Col this[int index] { get; }
            public nietras.SeparatedValues.SepReader.Col this[System.Index index] { get; }
            public nietras.SeparatedValues.SepReader.Col this[string colName] { get; }
            public nietras.SeparatedValues.SepReader.Cols this[System.Range range] { get; }
            public nietras.SeparatedValues.SepReader.Cols this[System.ReadOnlySpan<int> indices] { get; }
            public nietras.SeparatedValues.SepReader.Cols this[System.Collections.Generic.IReadOnlyList<int> indices] { get; }
            public nietras.SeparatedValues.SepReader.Cols this[int[] indices] { get; }
            public nietras.SeparatedValues.SepReader.Cols this[System.ReadOnlySpan<string> colNames] { get; }
            public nietras.SeparatedValues.SepReader.Cols this[System.Collections.Generic.IReadOnlyList<string> colNames] { get; }
            public nietras.SeparatedValues.SepReader.Cols this[string[] colNames] { get; }
            public int LineNumberFrom { get; }
            public int LineNumberToExcl { get; }
            public int RowIndex { get; }
            public System.ReadOnlySpan<char> Span { get; }
            public System.Func<int, string> UnsafeToStringDelegate { get; }
            public override string ToString() { }
        }
        public delegate void ColAction(nietras.SeparatedValues.SepReader.Col col);
        public delegate T ColFunc<T>(nietras.SeparatedValues.SepReader.Col col);
        public delegate void ColsAction(nietras.SeparatedValues.SepReader.Cols col);
        public delegate void RowAction(nietras.SeparatedValues.SepReader.Row row);
        public delegate T RowFunc<T>(nietras.SeparatedValues.SepReader.Row row);
        public delegate bool RowTryFunc<T>(nietras.SeparatedValues.SepReader.Row row, out T value);
    }
    public static class SepReaderExtensions
    {
        public static System.Collections.Generic.IEnumerable<T> Enumerate<T>(this nietras.SeparatedValues.SepReader reader, nietras.SeparatedValues.SepReader.RowFunc<T> select) { }
        public static System.Collections.Generic.IEnumerable<T> Enumerate<T>(this nietras.SeparatedValues.SepReader reader, nietras.SeparatedValues.SepReader.RowTryFunc<T> trySelect) { }
        public static System.Collections.Generic.IAsyncEnumerable<T> EnumerateAsync<T>(this nietras.SeparatedValues.SepReader reader, nietras.SeparatedValues.SepReader.RowFunc<T> select) { }
        public static System.Collections.Generic.IAsyncEnumerable<T> EnumerateAsync<T>(this nietras.SeparatedValues.SepReader reader, nietras.SeparatedValues.SepReader.RowTryFunc<T> trySelect) { }
        public static nietras.SeparatedValues.SepReader From(this in nietras.SeparatedValues.SepReaderOptions options, System.IO.Stream stream) { }
        public static nietras.SeparatedValues.SepReader From(this in nietras.SeparatedValues.SepReaderOptions options, System.IO.TextReader reader) { }
        public static nietras.SeparatedValues.SepReader From(this in nietras.SeparatedValues.SepReaderOptions options, byte[] buffer) { }
        public static nietras.SeparatedValues.SepReader From(this in nietras.SeparatedValues.SepReaderOptions options, string name, System.Func<string, System.IO.Stream> nameToStream) { }
        public static nietras.SeparatedValues.SepReader From(this in nietras.SeparatedValues.SepReaderOptions options, string name, System.Func<string, System.IO.TextReader> nameToReader) { }
        public static System.Threading.Tasks.ValueTask<nietras.SeparatedValues.SepReader> FromAsync(this nietras.SeparatedValues.SepReaderOptions options, System.IO.Stream stream, System.Threading.CancellationToken cancellationToken = default) { }
        public static System.Threading.Tasks.ValueTask<nietras.SeparatedValues.SepReader> FromAsync(this nietras.SeparatedValues.SepReaderOptions options, System.IO.TextReader reader, System.Threading.CancellationToken cancellationToken = default) { }
        public static System.Threading.Tasks.ValueTask<nietras.SeparatedValues.SepReader> FromAsync(this nietras.SeparatedValues.SepReaderOptions options, byte[] buffer, System.Threading.CancellationToken cancellationToken = default) { }
        public static System.Threading.Tasks.ValueTask<nietras.SeparatedValues.SepReader> FromAsync(this nietras.SeparatedValues.SepReaderOptions options, string name, System.Func<string, System.IO.Stream> nameToStream, System.Threading.CancellationToken cancellationToken = default) { }
        public static System.Threading.Tasks.ValueTask<nietras.SeparatedValues.SepReader> FromAsync(this nietras.SeparatedValues.SepReaderOptions options, string name, System.Func<string, System.IO.TextReader> nameToReader, System.Threading.CancellationToken cancellationToken = default) { }
        public static nietras.SeparatedValues.SepReader FromFile(this in nietras.SeparatedValues.SepReaderOptions options, string filePath) { }
        public static System.Threading.Tasks.ValueTask<nietras.SeparatedValues.SepReader> FromFileAsync(this nietras.SeparatedValues.SepReaderOptions options, string filePath, System.Threading.CancellationToken cancellationToken = default) { }
        public static nietras.SeparatedValues.SepReader FromText(this in nietras.SeparatedValues.SepReaderOptions options, string text) { }
        public static System.Threading.Tasks.ValueTask<nietras.SeparatedValues.SepReader> FromTextAsync(this nietras.SeparatedValues.SepReaderOptions options, string text, System.Threading.CancellationToken cancellationToken = default) { }
        public static System.Collections.Generic.IEnumerable<T> ParallelEnumerate<T>(this nietras.SeparatedValues.SepReader reader, nietras.SeparatedValues.SepReader.RowFunc<T> select) { }
        public static System.Collections.Generic.IEnumerable<T> ParallelEnumerate<T>(this nietras.SeparatedValues.SepReader reader, nietras.SeparatedValues.SepReader.RowTryFunc<T> trySelect) { }
        public static System.Collections.Generic.IEnumerable<T> ParallelEnumerate<T>(this nietras.SeparatedValues.SepReader reader, nietras.SeparatedValues.SepReader.RowFunc<T> select, int degreeOfParallism) { }
        public static System.Collections.Generic.IEnumerable<T> ParallelEnumerate<T>(this nietras.SeparatedValues.SepReader reader, nietras.SeparatedValues.SepReader.RowTryFunc<T> trySelect, int degreeOfParallism) { }
        public static nietras.SeparatedValues.SepReaderOptions Reader(this nietras.SeparatedValues.Sep sep) { }
        public static nietras.SeparatedValues.SepReaderOptions Reader(this nietras.SeparatedValues.Sep? sep) { }
        public static nietras.SeparatedValues.SepReaderOptions Reader(this nietras.SeparatedValues.SepSpec spec) { }
        public static nietras.SeparatedValues.SepReaderOptions Reader(this nietras.SeparatedValues.Sep sep, System.Func<nietras.SeparatedValues.SepReaderOptions, nietras.SeparatedValues.SepReaderOptions> configure) { }
        public static nietras.SeparatedValues.SepReaderOptions Reader(this nietras.SeparatedValues.Sep? sep, System.Func<nietras.SeparatedValues.SepReaderOptions, nietras.SeparatedValues.SepReaderOptions> configure) { }
        public static nietras.SeparatedValues.SepReaderOptions Reader(this nietras.SeparatedValues.SepSpec spec, System.Func<nietras.SeparatedValues.SepReaderOptions, nietras.SeparatedValues.SepReaderOptions> configure) { }
    }
    public sealed class SepReaderHeader
    {
        public System.Collections.Generic.IReadOnlyList<string> ColNames { get; }
        public bool IsEmpty { get; }
        public static nietras.SeparatedValues.SepReaderHeader Empty { get; }
        public int IndexOf(System.ReadOnlySpan<char> colName) { }
        public int IndexOf(string colName) { }
        public int[] IndicesOf(System.Collections.Generic.IReadOnlyList<string> colNames) { }
        public int[] IndicesOf([System.Runtime.CompilerServices.ParamCollection] [System.Runtime.CompilerServices.ScopedRef] System.ReadOnlySpan<string> colNames) { }
        public int[] IndicesOf(params string[] colNames) { }
        public void IndicesOf(System.ReadOnlySpan<string> colNames, System.Span<int> colIndices) { }
        public System.Collections.Generic.IReadOnlyList<string> NamesStartingWith(string prefix, System.StringComparison comparison = 4) { }
        public override string ToString() { }
        public bool TryIndexOf(System.ReadOnlySpan<char> colName, out int colIndex) { }
        public bool TryIndexOf(string colName, out int colIndex) { }
    }
    public readonly struct SepReaderOptions : System.IEquatable<nietras.SeparatedValues.SepReaderOptions>
    {
        public SepReaderOptions() { }
        public SepReaderOptions(nietras.SeparatedValues.Sep? sep) { }
        public bool AsyncContinueOnCapturedContext { get; init; }
        public System.Collections.Generic.IEqualityComparer<string> ColNameComparer { get; init; }
        public nietras.SeparatedValues.SepCreateToString CreateToString { get; init; }
        public System.Globalization.CultureInfo? CultureInfo { get; init; }
        public bool DisableColCountCheck { get; init; }
        public bool DisableFastFloat { get; init; }
        public bool DisableQuotesParsing { get; init; }
        public bool HasHeader { get; init; }
        public int InitialBufferLength { get; init; }
        public nietras.SeparatedValues.Sep? Sep { get; init; }
        public nietras.SeparatedValues.SepTrim Trim { get; init; }
        public bool Unescape { get; init; }
    }
    public class SepReaderState : System.IDisposable
    {
        public void Dispose() { }
    }
    public static class SepReaderWriterExtensions
    {
        public static void CopyTo(this nietras.SeparatedValues.SepReader.Row readerRow, nietras.SeparatedValues.SepWriter.Row writerRow) { }
        public static nietras.SeparatedValues.SepWriter.Row NewRow(this nietras.SeparatedValues.SepWriter writer, nietras.SeparatedValues.SepReader.Row rowToCopy) { }
        public static nietras.SeparatedValues.SepWriter.Row NewRow(this nietras.SeparatedValues.SepWriter writer, nietras.SeparatedValues.SepReader.Row rowToCopy, System.Threading.CancellationToken cancellationToken) { }
    }
    public readonly struct SepSpec : System.IEquatable<nietras.SeparatedValues.SepSpec>
    {
        public SepSpec() { }
        public SepSpec(nietras.SeparatedValues.Sep sep, System.Globalization.CultureInfo? cultureInfo) { }
        public SepSpec(nietras.SeparatedValues.Sep sep, System.Globalization.CultureInfo? cultureInfo, bool asyncContinueOnCapturedContext) { }
        public bool AsyncContinueOnCapturedContext { get; init; }
        public System.Globalization.CultureInfo? CultureInfo { get; init; }
        public nietras.SeparatedValues.Sep Sep { get; init; }
    }
    public abstract class SepToString : System.IDisposable
    {
        protected SepToString() { }
        public virtual bool IsThreadSafe { get; }
        public static nietras.SeparatedValues.SepCreateToString Direct { get; }
        public void Dispose() { }
        protected virtual void Dispose(bool disposing) { }
        public abstract string ToString(System.ReadOnlySpan<char> colSpan, int colIndex);
        public static nietras.SeparatedValues.SepCreateToString OnePool(int maximumStringLength = 32, int initialCapacity = 64, int maximumCapacity = 4096) { }
        public static nietras.SeparatedValues.SepCreateToString PoolPerCol(int maximumStringLength = 32, int initialCapacity = 64, int maximumCapacity = 4096) { }
        public static nietras.SeparatedValues.SepCreateToString PoolPerColThreadSafe(int maximumStringLength = 32, int initialCapacity = 64, int maximumCapacity = 4096) { }
        public static nietras.SeparatedValues.SepCreateToString PoolPerColThreadSafeFixedCapacity(int maximumStringLength = 32, int capacity = 2048) { }
    }
    [System.Flags]
    public enum SepTrim : byte
    {
        None = 0,
        Outer = 1,
        AfterUnescape = 2,
        All = 3,
    }
    [System.Diagnostics.DebuggerDisplay("{DebuggerDisplay,nq}")]
    public sealed class SepWriter : System.IAsyncDisposable, System.IDisposable
    {
        public nietras.SeparatedValues.SepWriterHeader Header { get; }
        public nietras.SeparatedValues.SepSpec Spec { get; }
        public void Dispose() { }
        public System.Threading.Tasks.ValueTask DisposeAsync() { }
        public void Flush() { }
        public System.Threading.Tasks.Task FlushAsync(System.Threading.CancellationToken cancellationToken = default) { }
        public nietras.SeparatedValues.SepWriter.Row NewRow() { }
        public nietras.SeparatedValues.SepWriter.Row NewRow(System.Threading.CancellationToken cancellationToken) { }
        public override string ToString() { }
        public readonly ref struct Col
        {
            public void Format<T>(T value)
                where T : System.ISpanFormattable { }
            public void Format<T>(T value, System.ReadOnlySpan<char> format)
                where T : System.ISpanFormattable { }
            public void Set(System.ReadOnlySpan<byte> utf8Span) { }
            public void Set(System.ReadOnlySpan<char> span) { }
            public void Set([System.Runtime.CompilerServices.InterpolatedStringHandlerArgument("")] ref nietras.SeparatedValues.SepWriter.Col.FormatInterpolatedStringHandler handler) { }
            public void Set(System.IFormatProvider? provider, [System.Runtime.CompilerServices.InterpolatedStringHandlerArgument(new string?[]?[] {
                    "",
                    "provider"})] ref nietras.SeparatedValues.SepWriter.Col.FormatInterpolatedStringHandler handler) { }
            [System.Runtime.CompilerServices.InterpolatedStringHandler]
            public ref struct FormatInterpolatedStringHandler
            {
                public FormatInterpolatedStringHandler(int literalLength, int formattedCount, nietras.SeparatedValues.SepWriter.Col col) { }
                public FormatInterpolatedStringHandler(int literalLength, int formattedCount, nietras.SeparatedValues.SepWriter.Col col, System.IFormatProvider? provider) { }
                public void AppendFormatted(System.ReadOnlySpan<char> value) { }
                public void AppendFormatted(string? value) { }
                public void AppendFormatted(System.ReadOnlySpan<char> value, int alignment = 0, string? format = null) { }
                public void AppendFormatted(object? value, int alignment = 0, string? format = null) { }
                public void AppendFormatted(string? value, int alignment = 0, string? format = null) { }
                public void AppendFormatted<T>(T value) { }
                public void AppendFormatted<T>(T value, int alignment) { }
                public void AppendFormatted<T>(T value, string? format) { }
                public void AppendFormatted<T>(T value, int alignment, string? format) { }
                public void AppendLiteral(string value) { }
            }
        }
        public readonly ref struct Cols
        {
            public int Count { get; }
            public nietras.SeparatedValues.SepWriter.Col this[int colIndex] { get; }
            public void Format<T>(System.Collections.Generic.IReadOnlyList<T> values)
                where T : System.ISpanFormattable { }
            public void Format<T>([System.Runtime.CompilerServices.ParamCollection] [System.Runtime.CompilerServices.ScopedRef] System.ReadOnlySpan<T> values)
                where T : System.ISpanFormattable { }
            public void Format<T>(System.Span<T> values)
                where T : System.ISpanFormattable { }
            public void Format<T>(T[] values)
                where T : System.ISpanFormattable { }
            public void Format<T>(System.ReadOnlySpan<T> values, nietras.SeparatedValues.SepWriter.ColAction<T> format) { }
            public void Set(System.Collections.Generic.IReadOnlyList<string> values) { }
            public void Set([System.Runtime.CompilerServices.ParamCollection] [System.Runtime.CompilerServices.ScopedRef] System.ReadOnlySpan<string> values) { }
            public void Set(nietras.SeparatedValues.SepReader.Cols cols) { }
            public void Set(string[] values) { }
        }
        public ref struct Row : System.IAsyncDisposable, System.IDisposable
        {
            public nietras.SeparatedValues.SepWriter.Col this[int colIndex] { get; }
            public nietras.SeparatedValues.SepWriter.Col this[string colName] { get; }
            public nietras.SeparatedValues.SepWriter.Cols this[System.ReadOnlySpan<int> indices] { get; }
            public nietras.SeparatedValues.SepWriter.Cols this[System.ReadOnlySpan<string> colNames] { get; }
            public nietras.SeparatedValues.SepWriter.Cols this[System.Collections.Generic.IReadOnlyList<string> colNames] { get; }
            public nietras.SeparatedValues.SepWriter.Cols this[string[] colNames] { get; }
            public void Dispose() { }
            public System.Threading.Tasks.ValueTask DisposeAsync() { }
        }
        public delegate void ColAction(nietras.SeparatedValues.SepWriter.Col col);
        public delegate void ColAction<T>(nietras.SeparatedValues.SepWriter.Col col, T value);
        public delegate void RowAction(nietras.SeparatedValues.SepWriter.Row row);
    }
    public static class SepWriterExtensions
    {
        public static nietras.SeparatedValues.SepWriter To(this in nietras.SeparatedValues.SepWriterOptions options, System.IO.Stream stream) { }
        public static nietras.SeparatedValues.SepWriter To(this in nietras.SeparatedValues.SepWriterOptions options, System.IO.TextWriter writer) { }
        public static nietras.SeparatedValues.SepWriter To(this in nietras.SeparatedValues.SepWriterOptions options, System.Text.StringBuilder stringBuilder) { }
        public static nietras.SeparatedValues.SepWriter To(this in nietras.SeparatedValues.SepWriterOptions options, System.IO.Stream stream, bool leaveOpen) { }
        public static nietras.SeparatedValues.SepWriter To(this in nietras.SeparatedValues.SepWriterOptions options, System.IO.TextWriter writer, bool leaveOpen) { }
        public static nietras.SeparatedValues.SepWriter To(this in nietras.SeparatedValues.SepWriterOptions options, string name, System.Func<string, System.IO.Stream> nameToStream, bool leaveOpen = false) { }
        public static nietras.SeparatedValues.SepWriter To(this in nietras.SeparatedValues.SepWriterOptions options, string name, System.Func<string, System.IO.TextWriter> nameToWriter, bool leaveOpen = false) { }
        public static nietras.SeparatedValues.SepWriter ToFile(this in nietras.SeparatedValues.SepWriterOptions options, string filePath) { }
        public static nietras.SeparatedValues.SepWriter ToText(this in nietras.SeparatedValues.SepWriterOptions options) { }
        public static nietras.SeparatedValues.SepWriter ToText(this in nietras.SeparatedValues.SepWriterOptions options, int capacity) { }
        public static nietras.SeparatedValues.SepWriterOptions Writer(this nietras.SeparatedValues.Sep sep) { }
        public static nietras.SeparatedValues.SepWriterOptions Writer(this nietras.SeparatedValues.SepSpec spec) { }
        public static nietras.SeparatedValues.SepWriterOptions Writer(this nietras.SeparatedValues.Sep sep, System.Func<nietras.SeparatedValues.SepWriterOptions, nietras.SeparatedValues.SepWriterOptions> configure) { }
        public static nietras.SeparatedValues.SepWriterOptions Writer(this nietras.SeparatedValues.SepSpec spec, System.Func<nietras.SeparatedValues.SepWriterOptions, nietras.SeparatedValues.SepWriterOptions> configure) { }
    }
    [System.Diagnostics.DebuggerDisplay("{DebuggerDisplay,nq}")]
    [System.Diagnostics.DebuggerTypeProxy(typeof(nietras.SeparatedValues.SepWriterHeader.DebugView))]
    public sealed class SepWriterHeader
    {
        public void Add(System.Collections.Generic.IReadOnlyList<string> colNames) { }
        public void Add([System.Runtime.CompilerServices.ParamCollection] [System.Runtime.CompilerServices.ScopedRef] System.ReadOnlySpan<string> colNames) { }
        public void Add(string colName) { }
        public void Add(string[] colNames) { }
        public bool Contains(string colName) { }
        public bool TryAdd(string colName) { }
        public void Write() { }
        public System.Threading.Tasks.ValueTask WriteAsync(System.Threading.CancellationToken cancellationToken = default) { }
    }
    public readonly struct SepWriterOptions : System.IEquatable<nietras.SeparatedValues.SepWriterOptions>
    {
        public SepWriterOptions() { }
        public SepWriterOptions(nietras.SeparatedValues.Sep sep) { }
        public bool AsyncContinueOnCapturedContext { get; init; }
        public nietras.SeparatedValues.SepColNotSetOption ColNotSetOption { get; init; }
        public System.Globalization.CultureInfo? CultureInfo { get; init; }
        public bool DisableColCountCheck { get; init; }
        public bool Escape { get; init; }
        public nietras.SeparatedValues.Sep Sep { get; init; }
        public bool WriteHeader { get; init; }
    }
}

Input	CsvHelper	Sylvan	Sep¹
``
`·`	`"·"`	`·`	`·`
`a`	`a`	`a`	`a`
`;`	`";"`	`";"`	`";"`
`,`	`,`	`,`	`,`
`"`	`""""`	`""""`	`""""`
`\r`	`"\r"`	`"\r"`	`"\r"`
`\n`	`"\n"`	`"\n"`	`"\n"`
`a"aa"aaa`	`"a""aa""aaa"`	`"a""aa""aaa"`	`"a""aa""aaa"`
`a;aa;aaa`	`"a;aa;aaa"`	`"a;aa;aaa"`	`"a;aa;aaa"`

nietras/Sepv0.12.0

Get Started

Readme

Sep - the World's Fastest .NET CSV Parser

Example

Naming and Terminology

Application Programming Interface (API)

API Pattern

SepReader API

SepReaderOptions

Unescaping

Trimming

SepReader Debuggability

SepReader.Row Debuggability

SepReader.Col Debuggability

Why SepReader Was Not IEnumerable Until .NET 9 and Is Not LINQ Compatible

ParallelEnumerate and Enumerate

SepWriter API

SepWriterOptions

Escaping

Async Support

Limitations and Constraints

Comparison Benchmarks

Runtime and Platforms

Reader Comparison Benchmarks

NCsvPerf PackageAssets Reader Comparison Benchmarks

PackageAssets Benchmark Results

AMD.EPYC.7763 - PackageAssets Benchmark Results (Sep 0.12.0.0, Sylvan 1.4.3.0, CsvHelper 33.1.0.26)

AMD.Ryzen.7.PRO.7840U.w.Radeon.780M - PackageAssets Benchmark Results (Sep 0.12.0.0, Sylvan 1.4.3.0, CsvHelper 33.1.0.26)

AMD.Ryzen.9.5950X - PackageAssets Benchmark Results (Sep 0.9.0.0, Sylvan 1.3.9.0, CsvHelper 33.0.1.24)

AMD.Ryzen.9.9950X - PackageAssets Benchmark Results (Sep 0.12.0.0, Sylvan 1.4.3.0, CsvHelper 33.1.0.26)

Apple.M1.(Virtual) - PackageAssets Benchmark Results (Sep 0.12.0.0, Sylvan 1.4.3.0, CsvHelper 33.1.0.26)

Cobalt.100 - PackageAssets Benchmark Results (Sep 0.12.0.0, Sylvan 1.4.3.0, CsvHelper 33.1.0.26)

PackageAssets Benchmark Results (SERVER GC)

AMD.EPYC.7763 - PackageAssets Benchmark Results (SERVER GC) (Sep 0.12.0.0, Sylvan 1.4.3.0, CsvHelper 33.1.0.26)

AMD.Ryzen.7.PRO.7840U.w.Radeon.780M - PackageAssets Benchmark Results (SERVER GC) (Sep 0.12.0.0, Sylvan 1.4.3.0, CsvHelper 33.1.0.26)

AMD.Ryzen.9.5950X - PackageAssets Benchmark Results (SERVER GC) (Sep 0.9.0.0, Sylvan 1.3.9.0, CsvHelper 33.0.1.24)

AMD.Ryzen.9.9950X - PackageAssets Benchmark Results (SERVER GC) (Sep 0.12.0.0, Sylvan 1.4.3.0, CsvHelper 33.1.0.26)

Apple.M1.(Virtual) - PackageAssets Benchmark Results (SERVER GC) (Sep 0.12.0.0, Sylvan 1.4.3.0, CsvHelper 33.1.0.26)

Cobalt.100 - PackageAssets Benchmark Results (SERVER GC) (Sep 0.12.0.0, Sylvan 1.4.3.0, CsvHelper 33.1.0.26)

PackageAssets with Quotes Benchmark Results

AMD.EPYC.7763 - PackageAssets with Quotes Benchmark Results (Sep 0.12.0.0, Sylvan 1.4.3.0, CsvHelper 33.1.0.26)

AMD.Ryzen.7.PRO.7840U.w.Radeon.780M - PackageAssets with Quotes Benchmark Results (Sep 0.12.0.0, Sylvan 1.4.3.0, CsvHelper 33.1.0.26)

AMD.Ryzen.9.5950X - PackageAssets with Quotes Benchmark Results (Sep 0.9.0.0, Sylvan 1.3.9.0, CsvHelper 33.0.1.24)

AMD.Ryzen.9.9950X - PackageAssets with Quotes Benchmark Results (Sep 0.12.0.0, Sylvan 1.4.3.0, CsvHelper 33.1.0.26)

Apple.M1.(Virtual) - PackageAssets with Quotes Benchmark Results (Sep 0.12.0.0, Sylvan 1.4.3.0, CsvHelper 33.1.0.26)

Cobalt.100 - PackageAssets with Quotes Benchmark Results (Sep 0.12.0.0, Sylvan 1.4.3.0, CsvHelper 33.1.0.26)

PackageAssets with Quotes Benchmark Results (SERVER GC)

AMD.EPYC.7763 - PackageAssets with Quotes Benchmark Results (SERVER GC) (Sep 0.12.0.0, Sylvan 1.4.3.0, CsvHelper 33.1.0.26)

AMD.Ryzen.7.PRO.7840U.w.Radeon.780M - PackageAssets with Quotes Benchmark Results (SERVER GC) (Sep 0.12.0.0, Sylvan 1.4.3.0, CsvHelper 33.1.0.26)

AMD.Ryzen.9.5950X - PackageAssets with Quotes Benchmark Results (SERVER GC) (Sep 0.9.0.0, Sylvan 1.3.9.0, CsvHelper 33.0.1.24)

AMD.Ryzen.9.9950X - PackageAssets with Quotes Benchmark Results (SERVER GC) (Sep 0.12.0.0, Sylvan 1.4.3.0, CsvHelper 33.1.0.26)

Apple.M1.(Virtual) - PackageAssets with Quotes Benchmark Results (SERVER GC) (Sep 0.12.0.0, Sylvan 1.4.3.0, CsvHelper 33.1.0.26)

Cobalt.100 - PackageAssets with Quotes Benchmark Results (SERVER GC) (Sep 0.12.0.0, Sylvan 1.4.3.0, CsvHelper 33.1.0.26)

PackageAssets with Spaces and Quotes Benchmark Results

AMD.EPYC.7763 - PackageAssets with Spaces and Quotes Benchmark Results (Sep 0.12.0.0, Sylvan 1.4.3.0, CsvHelper 33.1.0.26)

AMD.Ryzen.7.PRO.7840U.w.Radeon.780M - PackageAssets with Spaces and Quotes Benchmark Results (Sep 0.12.0.0, Sylvan 1.4.3.0, CsvHelper 33.1.0.26)

AMD.Ryzen.9.5950X - PackageAssets with Spaces and Quotes Benchmark Results (Sep 0.9.0.0, Sylvan 1.3.9.0, CsvHelper 33.0.1.24)

AMD.Ryzen.9.9950X - PackageAssets with Spaces and Quotes Benchmark Results (Sep 0.12.0.0, Sylvan 1.4.3.0, CsvHelper 33.1.0.26)

Apple.M1.(Virtual) - PackageAssets with Spaces and Quotes Benchmark Results (Sep 0.12.0.0, Sylvan 1.4.3.0, CsvHelper 33.1.0.26)

Cobalt.100 - PackageAssets with Spaces and Quotes Benchmark Results (Sep 0.12.0.0, Sylvan 1.4.3.0, CsvHelper 33.1.0.26)

Floats Reader Comparison Benchmarks

AMD.EPYC.7763 - FloatsReader Benchmark Results (Sep 0.12.0.0, Sylvan 1.4.3.0, CsvHelper 33.1.0.26)

AMD.Ryzen.7.PRO.7840U.w.Radeon.780M - FloatsReader Benchmark Results (Sep 0.12.0.0, Sylvan 1.4.3.0, CsvHelper 33.1.0.26)

AMD.Ryzen.9.5950X - FloatsReader Benchmark Results (Sep 0.9.0.0, Sylvan 1.3.9.0, CsvHelper 33.0.1.24)

AMD.Ryzen.9.9950X - FloatsReader Benchmark Results (Sep 0.12.0.0, Sylvan 1.4.3.0, CsvHelper 33.1.0.26)

Apple.M1.(Virtual) - FloatsReader Benchmark Results (Sep 0.12.0.0, Sylvan 1.4.3.0, CsvHelper 33.1.0.26)

Cobalt.100 - FloatsReader Benchmark Results (Sep 0.12.0.0, Sylvan 1.4.3.0, CsvHelper 33.1.0.26)

Writer Comparison Benchmarks

Example Catalogue

Example - Copy Rows

Example - Copy Rows (Async)

Example - Skip Empty Rows

Example - Use Extension Method Enumerate within async/await Context (prior to C# 13.0)

Example - Use Local Function within async/await Context

Example - Skip Lines/Rows Starting with Comment #

RFC-4180

Frequently Asked Questions (FAQ)

SepReader FAQ

SepWriter FAQ

Example - Skip Lines/Rows Starting with Comment `#`