I tried a few variations and I can't seem to make that work.

Show your efforts :)

What do you think is wrong with it?

Can you supply a self-contained, working example?

Theoretically :) did you try Basic debugging checklist?

I think this ought to show what is wrong with my syntax 

#!/usr/bin/perl --
use strict; use warnings; use Data::Dump;
my $str = "xxxx yy zzzzz xxxx qqq";
my $lengthy = sub { warn 1 };
my @list = grep $lengthy, split /\W/, $str;
dd \@list;
__END__

[download]

Its basically as if I wrote grep 1, ...

and here I thought grep knew to take a subroutine reference, it works with grep \&somename, but it has to be grep $lengthy->(),...

And on top of that no warnings of any kind, surprising

In reply to Re^3: match sequences of words based on number of characters by Anonymous Monk
in thread match sequences of words based on number of characters by nicemank

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