I want do insert the following HTML in my article:

- Code: Select all
`<pre> regex = "([[:digit:]]+)[^[:digit:]]+([[:digit:]]+)";</pre>`

But it seems as if the double square brackets are treated special. What I get is:

- Code: Select all
`Trying to find '(`

+)[^[:digit:]]+(

+)'

I have tried to use [ and ] respectively. But that doesn't help.

How can I solve this?