Christos wrote:

>Many thanks for your kind attention.

Can you send your input file too?

Sure.  It's just a list of regular expressions to try.  But you 
already knew that.  

-=- snip -=-
test
^test
(test)
exec
^exec
(exec)
(ex(ec))
(ex)(ec)
([[:alnum:]])
([[:alnum:]]+)
([_[:alnum:]]+)
([_[a-z0-9]+)
-=- snip -=-

Thanks for looking at it for me, Christos.  

--jkl