When you are trying to highlight some code that contains special characters, this can mess up your markup. So you need to escape some characters first, for example replace all
>. I used this page to find the codes.
I've had enough of copy-paste-replace-this-replace-that-copy-paste, so I created a page of my own that does at least replacing part:
The core of the replacing mechanism is this RegEx:
It can also re-escape the result, sometimes it can eventually escape unescaped. You can do it by pressing the button with the
← in the middle.
You can see, that it escapes only pretty basic stuff, so don't rely on it in any somewhat difficult cases.