M Z wrote:
>
> Hello
Hello,
> I was wondering if someone could point me in the right
> direction for the following regex.
>
> s/(.{1,100}(?: |(\-))/$1$2\n/g;
>
> Please help on the second (?: |\-)
> I am trying to match either a single space ' '
> or a - after 100 other characters and I want to save
> the - but not the ' '
> thereby $2 being undefined if ' ' is found after 100.
>
> I'm ok with it being undefined but I'm not sure if the
> above regex is valid, in fact I don't think it works
> the way I want but needed to write it like that to
> express what I wanted done
s/(.{1,100})( |-)/$1 . ($2 eq '-' && $2) . "\n"/eg;
John
--
use Perl;
program
fulfillment
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