On Sat, Dec 08, 2001 at 08:21:38AM +0800, Leon wrote:
> The original poster says at least 1 letter or number ...... " i want
> something like..if $searchstring has at least 1 letter or number {
> commands... }";
>
> Therefore it should be $searchstring=~/[a-zA-Z0-9]+/;
The + doesn't do anything except potentially slow down the regex, and fill
$&, $+, and $+ with different data. He wants the regex to match if it
contains at least 1 letter or number, therefore /[a-zA-Z0-9]/ is correct, as
it will match 1 letter or number.
Michael
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