Yes, you can use the regex module to insert some text. Some examples:
Simple insert
If your header is AAACCC and you want to insert BBB to get AAABBBCCC,
replace
AC
from
Abbbw
Simple append
If your title is AAACCC and you want to add BBB to get AAACCCBBB,
replace
$
from
IN
Capture Group Insert
. , , , Oct2009. , Oct - 2009
([A-Za-Z] +) ([0-9] +)
$1 - $2
$1 - (), $2 - ().
, , ,
$
by ${author}
title= Interesting Text author = John Doe title= John Doe