Wayne Simmons wrote:
>  Ok I've read in the docs that $& and his mates $' and $` and some bad boys
>  that slow down all regular expressions in an entire program. So in an effort
>  to prevent having to use them I was going to use either:
>  @- and @+
>  Or 
>  The index function
>  
>  I was wondering if anyone knows whether the @- and @+ system variables were
>  bad like the saw ampersand and friends.  
>  
>  Also would they be better to use than searching the string again using the
>  index function?

It would help if you gave an example of what you're trying to accomplish.
I've used those vars maybe once or twice in testing, but never found a
need for them in any of my normal scripts (but then again, I bleieve number
vars ($1, $2, ...) have the same cost which I do use frequently).

It's a one-time penalty and I wouldn't really worry much about it.  You could
time it and see what the penalty actually is and see if it's warranted.


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