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davis's scratchpad

by davis (Vicar)
on Jun 01, 2004 at 15:33 UTC ( #358132=scratchpad: print w/ replies, xml ) Need Help??

tom_rpr:
#!/usr/bin/perl use warnings; use strict; use Data::Dumper; my %groups = ( group1 => { 'http://foo.com/' => {}, 'http://bar.com/' => {}, 'http://baz.com/' => {}, }, group2 => { 'http://abc.com/' => {}, 'http://def.com/' => {}, 'http://ghi.com/' => {}, }, ); foreach my $group (sort keys %groups) { my $group_ref = $groups{$group}; foreach my $url (sort keys %$group_ref) { my $url_ref = $group_ref->{$url}; # do stuff $url_ref->{result} = 200; } } print Dumper(\%groups);
woofle: http://www.nationmaster.com/encyclopedia/Formulation-of-Maxwell's-equations-in-special-relativity drwoobie:
#!/usr/bin/perl use warnings; use strict; use Data::Dumper; use CGI qw(:standard); use CGI::Carp qw(warningsToBrowser fatalsToBrowser); my $username = param('username'); # info from login.html my $cgi = CGI->new; # create CGI object # try and connect to DB my $dbh = DBI->connect("dbi:mysql:database", "username", "password", { + RaiseError => 1, AutoCommit => 1 }) or die "Can't connect: $DBI::errstr"); my $select_sth = $dbh->prepare("SELECT loc FROM users WHERE name = ?") +; if($cgi->param("action") eq "update") { my $update_sth = $dbh->prepare("UPDATE users SET loc=? WHERE name= +?"); my $new_location = $cgi->param("newloc"); $update_sth->execute($new_location, $username); } # Pull player location from db $select_sth->execute($username); # Put player loc into variable based on previous pull my $location = $select_sth->fetchrow_array; print $cgi->header, $cgi->start_html( -title => 'Begin: Eden v2'); print "You are $username and are located at $location"; print $cgi->start_form(); print $cgi->textfield(-name => 'newloc', -size => '4', -value=>$locati +on, -force=>1); print $cgi->hidden('username','username'); print $cgi->hidden(-name=>"action", -value=>"update"); print $cgi->submit(-value => 'name', -alias => 'username'); print $cgi->endform; print $cgi->end_html; $dbh->disconnect(); exit;
I can't decide if this is a perversion or not...
system("true") == 0 and print "true succeeded\n" or warn "true didn't succeed\n"; system("false") == 0 and print "false succeeded\n" or warn "false didn't succeed\n";
use warnings; use strict; use Benchmark qw(:all); my @arr; push @arr, int(rand(10000)) for (1 .. 1000000); my($min, $max) = ($arr[0], $arr[0]); cmpthese(100, { no_break => sub { for (@arr) { $min = $_ if $_ < $min; $max = $_ if $_ > $max; } }, break => sub { for (@arr) { if($_ < $min) { $min = $_; next; } $max = $_ if $_ > $max; } } });
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