Backslash - Generic Mode / Regular Expressions

[Frank-René Schäfer]

I am having trouble to match against a backslash in a generic mode
definition.
>From the response of (regexp-quote "\end")  --> "\\\\end" I would
assume that
"\\\\end" could be used as shown in the example below. However, it does
not
work that way. Is there anything special to consider?

(define-generic-mode 'my-mode
                     (list (cons "/~" "~/") (cons "$$" "$$"))
                     (list  ... "\\\\end") 
....
)

Thanks

Frank