[texworks] a script question

[Pavol Severa]

Hi
I would like to write a simple script doing this:
if xcvb is the word right between the cursor, it should replace it by
\begin{xcvb} \end{xcvb}
and place the cursor in the middle. Could you explain me how to do it?
(from the example scripts I only know how to do it if xcvb is selected)
Regards, P.
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