query-replace-regexp number number+1

[rturrado]

Hi,

I wonder if you can do that easily in emacs: to search for a number,
let's say \([0-9]+\), and replace it with its successor, let's say
\1+1. The query I've just written would replace 25 with 25+1. What I
want is to evaluate 25+1 and replace 25 with 26.

Thanks, Roberto.