emacs - Escape pipe-character in org-mode

Question

I've got a table in Emacs org-mode, and the contents are regular expressions. I can't seem to figure out how to escape a literal pipe-character (|) that's part of a regex though, so it's interpreted as a table-cell separator. Could someone point me to some help? Thanks.

Update: I'm also looking for escapes for a slash (/), so that it doesn't trigger the start of an italic/emphasis sequence. I experimented with / and // - for example, suppose I want the literal text /foo/ in a table cell. Here are 3 ways of attempting it:

| /foo/ | /foo/ | //foo/ |

In LaTeX export, that becomes:

emph{foo}  &  /foo/  &  //foo/

So none of them is the plain /foo/ I'm hoping for.

Answer 1

vert for the pipe.

Forward slashes seem to work fine for me unescaped when exporting both to HTML and PDF.