regexp-sans-escapes

regexp-sans-escapes is a compiled Lisp function in `allout.el'.

(regexp-sans-escapes REGEXP &optional SUCCESSIVE-BACKSLASHES)

Return a copy of REGEXP with all character escapes stripped out.

Representations of actual backslashes -- '\\\\' -- are left as a
single backslash.

Optional arg SUCCESSIVE-BACKSLASHES is used internally for recursion.