develooper Front page | perl.perl5.porters | Postings from March 2001

perl question

Thread Next
From:
Steven R Brandt
Date:
March 29, 2001 15:07
Subject:
perl question
Message ID:
20010329005914.EUIK26203.femail11.sdc1.sfba.home.com@CN314771-A
 Forgive me if this is not the right place to direct this sort of
 question.... 

 Why do we have
    (?(zero-width-assertion)yes-pattern|no-pattern)

 Isn't this identical to
    (?:(zero-width-assertion)yes-pattern|no-pattern)

 The only typing that is saved appears to be the colon.  Otherwise this is
 nothing new.  Right?



Thread Next


nntp.perl.org: Perl Programming lists via nntp and http.
Comments to Ask Bjørn Hansen at ask@perl.org | Group listing | About