TextMeasurer.Measure and IImageProcessingContext.DrawText fail if the first character is a /

Prerequisites

• I have written a descriptive issue title
• I have verified that I am running the latest version of Fonts
• I have verified if the problem exist in both DEBUG and RELEASE mode
• I have searched open and closed issues to ensure it has not already been reported

Description

Measuring or drawing text that starts with a forward slash / fails with an ArgumentOutOfRangeException This appears to be located in DefaultShaper.AssignFeatures if (shapingData.CodePoint == FractionSlash || shapingData.CodePoint == Slash) This will call shapingData = collection.GetGlyphShapingData(start - 1); when start == 0

Steps to Reproduce

var font = SystemFonts.CreateFont("Arial", 12);
var rendererOptions = new TextOptions(font)
{
    WrappingLength = 100,
    Origin = new PointF(0, 0)
};
var measurement = TextMeasurer.Measure("/ This will fail", rendererOptions);

System Configuration

Windows 10 and AWS Linux 2

• Fonts version: SixLabors.Fonts 1.0.0-beta16
• Other Six Labors packages and versions: SixLabors.ImageSharp 2.0.0, SixLabors.ImageSharp.Drawing 1.0.0-beta14
• Environment (Operating system, version and so on): Windows 10/AWS Linux 2
• .NET Framework version: .NET 6.0
• Additional information:

[JimBobSquarePants]

I wasn’t planning on a NuGet release until the RC but since it’s a fairly critical bug I’ll get something pushed out in the next few days.

[woutware]

@JimBobSquarePants Thanks for the nuget release.