add support for different line break symbols in tracker (closes beluc…

…ha#15 by archer0302)

CHANGELOG.MD

@@ -1,3 +1,5 @@
+
+- add support for different line break symbols in tracker (closes #15 by archer0302)
 ## 2023-05-16 v2.5.7
 
 - improve: svg clip path id is not regenerated on upon every update (only for dynamic data)

OxyPlot.Blazor/BlazorSvgFragmentRenderContext.cs

@@ -15,12 +15,12 @@ namespace OxyPlot.Blazor
     using System.Linq;
     using System.Text;
     using Microsoft.AspNetCore.Components.Rendering;
-    using System.Text.RegularExpressions;
+
 
     /// <summary>
     /// Provides a render context for scalable vector graphics output.
     /// </summary>
-    public class BlazorSvgFragmentRenderContext : ClippingRenderContext
+    public partial class BlazorSvgFragmentRenderContext : ClippingRenderContext
     {
         /// <summary>
         /// Tooltip(title) for next svg element
@@ -584,7 +584,7 @@ public override void DrawText(
                 return;
             }
 
-            var lines = Regex.Split(text, "(\r\n|\n|\r)");
+            var lines = Helpers.SplitToLines(text);
 
             var textSize = MeasureText(text, fontFamily, fontSize, fontWeight);
             var lineHeight = textSize.Height / lines.Length;

OxyPlot.Blazor/Helpers.cs

@@ -0,0 +1,35 @@
+// --------------------------------------------------------------------------------------------------------------------
+// <copyright file="BlazorSvgRenderContext.cs" company="OxyPlot">
+//   Copyright (c) 2014 OxyPlot contributors
+// </copyright>
+// <summary>
+//   Provides a render context for scalable vector graphics output.
+// </summary>
+// --------------------------------------------------------------------------------------------------------------------
+
+namespace OxyPlot.Blazor
+{
+    using System.Text.RegularExpressions;
+
+    internal partial class Helpers
+    {
+#if NET7_0_OR_GREATER
+        [GeneratedRegex("(\r\n|\n|\r)", RegexOptions.CultureInvariant)]
+        private static partial Regex LineSplitterRegex();
+#endif
+
+        /// <summary>
+        /// Splits the text at \r\n or \n or \r into multiple lines
+        /// </summary>
+        /// <param name="input"></param>
+        /// <returns>the array of lines</returns>
+        public static string[] SplitToLines(string input)
+        {
+#if NET7_0_OR_GREATER
+            return LineSplitterRegex().Split(input);
+#else
+            return Regex.Split(input, "(\r\n|\n|\r)", RegexOptions.Compiled | RegexOptions.CultureInvariant);
+#endif
+        }
+    }
+}