Noam Noam - 2 days ago 4
Markdown Question

Diff syntax highlighting in Github Markdown

I'm writing documents that should explain code in C# using Markdown.

I use the

```csharp
to get csharp highlighting.

I sometimes want to highlight something specific in the code using bold or anything.

I know about
<pre>
etc... but it takes away my csharp highlighting.

Best case scenario - some way to highlight code in the
```csharp
section.

Next best thing - I can write the code as diff - using + and - to highlight stuff, but how do I tell Github to highlight diff syntax with the red and green backcolor?

Is there a way to use both diff and csharp syntax highlighting?

Answer

Github's markdown supports diff when formatting code. For example:

```diff
public class Hello1
{
   public static void Main()
   {
-      System.Console.WriteLine("Hello, World!");
+      System.Console.WriteLine("Rock all night long!");
   }
}
```

and it should give you the Diff looks you are looking for, highlighting in red what has been removed and in green what has been added.

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