cvs commit: perlfaq perlfaq6.pod

cvsuser     03/09/20 23:02:10

  Modified:    .        perlfaq6.pod
  Log:
  Sync from p5p
  
  Revision  Changes    Path
  1.22      +10 -7     perlfaq/perlfaq6.pod
  
  Index: perlfaq6.pod
  ===================================================================
  RCS file: /cvs/public/perlfaq/perlfaq6.pod,v
  retrieving revision 1.21
  retrieving revision 1.22
  diff -u -w -r1.21 -r1.22
  --- perlfaq6.pod	20 Sep 2003 06:38:54 -0000	1.21
  +++ perlfaq6.pod	21 Sep 2003 06:02:10 -0000	1.22
  @@ -1,6 +1,6 @@
   =head1 NAME
   
  -perlfaq6 - Regular Expressions ($Revision: 1.21 $, $Date: 2003/09/20 06:38:54 $)
  +perlfaq6 - Regular Expressions ($Revision: 1.22 $, $Date: 2003/09/21 06:02:10 $)
   
   =head1 DESCRIPTION
   
  @@ -679,14 +679,17 @@
   hope to know on these matters (a full citation appears in
   L<perlfaq2>).
   
  -=head2 What's wrong with using grep or map in a void context?
  +=head2 What's wrong with using grep in a void context?
   
  -The problem is that both grep and map build a return list,
  -regardless of the context.  This means you're making Perl go
  -to the trouble of building a list that you then just throw away.
  -If the list is large, you waste both time and space.  If your
  -intent is to iterate over the list then use a for loop for this
  +The problem is that grep builds a return list, regardless of the context.
  +This means you're making Perl go to the trouble of building a list that
  +you then just throw away. If the list is large, you waste both time and space.
  +If your intent is to iterate over the list, then use a for loop for this
   purpose.
  +
  +In perls older than 5.8.1, map suffers from this problem as well.
  +But since 5.8.1, this has been fixed, and map is context aware - in void
  +context, no lists are constructed.
   
   =head2 How can I match strings with multibyte characters?