fix: Transform code in headers as well

Author: linkdotnet

src/LinkDotNet.Blog.Web/Features/MarkdownConverter.cs

@@ -1,10 +1,13 @@
 using System.Collections.Generic;
 using System.Linq;
+using System.Text;
 using Markdig;
 using Markdig.Extensions.AutoIdentifiers;
 using Markdig.Renderers.Html;
 using Markdig.Syntax;
+using Markdig.Syntax.Inlines;
 using Microsoft.AspNetCore.Components;
+using Microsoft.Extensions.Primitives;
 
 namespace LinkDotNet.Blog.Web.Features;
 
@@ -38,9 +41,30 @@ public static IReadOnlyCollection<TocItem> GenerateToc(string markdownContent)
         return document
             .Descendants<HeadingBlock>()
             .Where(h => h.Inline?.FirstChild is not null)
-            .Select(heading => new TocItem { Level = heading.Level, Text = heading.Inline.FirstChild.ToString(), Id = heading.GetAttributes().Id })
+            .Select(heading => new TocItem { Level = heading.Level, Text = InlineToString(heading.Inline), Id = heading.GetAttributes().Id })
             .ToArray();
     }
+
+    private static string InlineToString(ContainerInline inline)
+    {
+        var sb = new StringBuilder();
+        var current = inline.FirstChild;
+        while (current is not null)
+        {
+            if (current is CodeInline cd)
+            {
+                sb.Append(cd.Content);
+            }
+            else
+            {
+                sb.Append(current);
+            }
+
+            current = current.NextSibling;
+        }
+
+        return sb.ToString();
+    }
 }
 
 public class TocItem

tests/LinkDotNet.Blog.UnitTests/Web/Features/ShowBlogPost/Components/TableOfContentsTests.cs

@@ -52,4 +52,17 @@ public void ShouldSetAnchorLinkCorrectWhenAlreadyAnchorInUrl()
         links[0].GetAttribute("href").Should().Be("https://localhost#header-1");
         links[1].GetAttribute("href").Should().Be("https://localhost#header-2");
     }
+    
+    [Fact]
+    public void ShouldCreateCorrectTocWithCodeInHeadings()
+    {
+        const string content = "# This is `Header` 1";
+        
+        var cut = Render<TableOfContents>(p => p
+            .Add(x => x.Content, content)
+            .Add(x => x.CurrentUri, "https://localhost"));
+        
+        var link = cut.Find("nav a");
+        link.TextContent.Should().Be("This is Header 1");
+    }
 }