Replace expression with itself + string

[kongharald]

If I try to do a RegExp replace and want to insert the search expression into the replace expression TextPad inserts "\1" or "\2" litteraly as replacement text, not the search expression from the Find form.

What am I doing wrong?
(tried both Posix and non-posix searches)

[helios]

Have you ticked the "Regular Expression" Condition in the Replace dialog box?

[MudGuard]

\1 and \2 refer to the first and second tagged expression - i.e. parts in the search regex in ()

To use the complete string that was found use & or \0

And, of course, you have to have turned on Regular Expressions.