Re: [FWP] Is this fun? What's going on?

[Ronald J Kimball <rjk@linguist.dartmouth.edu>]

On Fri, Aug 06, 1999 at 10:49:12AM -0400, Bill Jones wrote:
> s{(\d+\.\d+)}  {<A HREF="$1">$1</A>}g;
> 
> What can I change to also match an optional
> third or fourth  (  #.#.#  or #.#.#.# ) section number???
> 
> I am looking at various forms of -
> s{(\d+\.\d+){1}(\.\d+)?(\.\d+)?}  {<A HREF="$1">$1</A>}g;
> 
> But that actually truncates the results...
> 

$1 only encompasses the first part of the regex.  You need capturing
parentheses around the whole thing.

s{(\d+(?:\.\d+)+)} {<A HREF="$1">$1</A>}g;

BTW, instead of {1}, you could have written {1,1}.
Or even {1,1}?.   ;)

Ronald

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