render indented code blocks

samples/MudBlazor.Markdown.Core/sample-issues.md

@@ -1,4 +1,10 @@
-# [Unknown language - Razor](https://github.com/MyNihongo/MudBlazor.Markdown/issues/260)
+# [Indented code block](https://github.com/MyNihongo/MudBlazor.Markdown/issues/294)
+    if
+    {
+        return;
+    }
+
+# [Unknown language - Razor](https://github.com/MyNihongo/MudBlazor.Markdown/issues/260)
 ```razor
 @page
 @model IndexModel

src/MudBlazor.Markdown/MudMarkdown.razor.cs

@@ -204,7 +204,12 @@ protected virtual void RenderMarkdown(ContainerBlock container, RenderTreeBuilde
 				}
 				case FencedCodeBlock code:
 				{
-					RenderFencedCodeBlock(builder, code);
+					RenderCodeBlock(builder, code, code.Info);
+					break;
+				}
+				case CodeBlock code:
+				{
+					RenderCodeBlock(builder, code, info: null);
 					break;
 				}
 				case HtmlBlock html:
@@ -481,7 +486,12 @@ protected virtual void RenderList(ListBlock list, RenderTreeBuilder builder)
 					}
 					case FencedCodeBlock x:
 					{
-						RenderFencedCodeBlock(builder, x);
+						RenderCodeBlock(builder, x, x.Info);
+						break;
+					}
+					case CodeBlock x:
+					{
+						RenderCodeBlock(builder, x, info: null);
 						break;
 					}
 					default:
@@ -523,13 +533,13 @@ protected virtual void RenderHtml(in RenderTreeBuilder builder, in StringLineGro
 		builder.AddContent(ElementIndex, markupString);
 	}
 
-	protected virtual void RenderFencedCodeBlock(in RenderTreeBuilder builder, in FencedCodeBlock code)
+	protected virtual void RenderCodeBlock(in RenderTreeBuilder builder, in CodeBlock code, in string? info)
 	{
 		var text = code.CreateCodeBlockText();
 
 		builder.OpenComponent<MudCodeHighlight>(ElementIndex++);
 		builder.AddAttribute(ElementIndex++, nameof(MudCodeHighlight.Text), text);
-		builder.AddAttribute(ElementIndex++, nameof(MudCodeHighlight.Language), code.Info ?? string.Empty);
+		builder.AddAttribute(ElementIndex++, nameof(MudCodeHighlight.Language), info ?? string.Empty);
 		builder.AddAttribute(ElementIndex++, nameof(MudCodeHighlight.Theme), CodeBlockTheme);
 		builder.CloseComponent();
 	}

src/MudBlazor.Markdown/Utils/Extensions/FencedCodeBlockEx.cs

@@ -5,7 +5,7 @@ namespace MudBlazor;
 
 internal static class FencedCodeBlockEx
 {
-	public static string CreateCodeBlockText(this FencedCodeBlock @this)
+	public static string CreateCodeBlockText(this CodeBlock @this)
 	{
 		if (@this.Lines.Count == 0)
 			return string.Empty;
@@ -27,4 +27,4 @@ public static string CreateCodeBlockText(this FencedCodeBlock @this)
 
 		return sb.ToString();
 	}
-}
+}