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Optimize NewLine.Length()

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This commit is contained in:
MihaZupan
2021-03-14 02:07:45 +01:00
parent 6b1399ba23
commit 4b7a4d21de
1 changed files with 12 additions and 27 deletions
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39
src/Markdig/Helpers/Newline.cs
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@@ -12,39 +12,24 @@ namespace Markdig.Helpers
/// </summary>
public enum NewLine : byte
{
None,
CarriageReturn,
LineFeed,
CarriageReturnLineFeed
// Values have the length encoded in last 2 bits
None = 0,
CarriageReturn = 4 | 1,
LineFeed = 8 | 1,
CarriageReturnLineFeed = 16 | 2
}
public static class NewLineExtensions
{
public static string AsString(this NewLine newLine)
public static string AsString(this NewLine newLine) => newLine switch
{
if (newLine == NewLine.CarriageReturnLineFeed)
{
return "\r\n";
}
if (newLine == NewLine.LineFeed)
{
return "\n";
}
if (newLine == NewLine.CarriageReturn)
{
return "\r";
}
return string.Empty;
}
public static int Length(this NewLine newLine) => newLine switch
{
NewLine.None => 0,
NewLine.CarriageReturn => 1,
NewLine.LineFeed => 1,
NewLine.CarriageReturnLineFeed => 2,
_ => throw new NotSupportedException(),
NewLine.CarriageReturnLineFeed => "\r\n",
NewLine.LineFeed => "\n",
NewLine.CarriageReturn => "\r",
_ => string.Empty,
};
public static int Length(this NewLine newLine) => (int)newLine & 3;
}
}