Front page | perl.perl5.porters |
Postings from May 2003
I'm not sure if it's a bug or an expected behavior, but it seems that I can't
use constants in m/.{m}/ and I see no references to it in the perlre manpage.
I'm trying to split string into substrings of SIZE chars and a remainder.
unpack "(A" . SIZE . ")*", $string
does the job:
% perl-5.8.1 -le 'use constant SIZE => 4; \
print join "-", unpack "(A" . SIZE . ")*", join "", "a".."z";'
abcd-efgh-ijkl-mnop-qrst-uvwx-yz
but it doesn't work in 5.6.1. So I've tried to use a regex, but the only way I
could embed a constant in m/.{m}/ was using the string interpolation
workaround: @{[SIZE]}}
% perl-5.8.1 -le 'use constant SIZE => 4; $_ = join "", "a".."z"; my @w =
/(.{@{[SIZE]}}|.+)/g; print join "-", @w'
abcd-efgh-ijkl-mnop-qrst-uvwx-yz
I can neither do:
m/.{+SIZE}/
nor
m/.{SIZE()}/
which I've tried to use, which is the usual trick for using constants in the
hash keys. I know that {} here don't do the same thing, but I see no reason
why shouldn't they behave identically to hash's {} brackets.
__________________________________________________________________
Stas Bekman JAm_pH ------> Just Another mod_perl Hacker
http://stason.org/ mod_perl Guide ---> http://perl.apache.org
mailto:stas@stason.org http://use.perl.org http://apacheweek.com
http://modperlbook.org http://apache.org http://ticketmaster.com
Thread Next