I, For One, Welcome Our New Perl6 Overlords

I, For One, Welcome Our New
Perl6 Overlords

Josh Heumann

Perl6::________
Perl6::Attributes Perl6::Junction
Perl6::Bible Perl6::Parameters
Perl6::Binding Perl6::Perl
Perl6::Builtins Perl6::Perldoc
Perl6::Caller Perl6::Placeholders
Perl6::Classes Perl6::Pugs
Perl6::Comments Perl6::Role
Perl6::Contexts Perl6::Rules
Perl6::Currying Perl6::Say
Perl6::Doc Perl6::Slurp
Perl6::Export Perl6::Subs
Perl6::Form Perl6::Tokener
Perl6::Gather Perl6::Variables
Perl6::Interpolate

use Perl6::Variables;

my @change_agents = (
'consultancy',
'downsizing',
'knowledge management'
);


'consultancy',
'downsizing',
);

print @change_agents[0];


'consultancy',
'downsizing',
);


print @change_agents[1..2];


'consultancy',
'downsizing',
);


print @change_agents[1..2];

# compile error
print $change_agents[0];

use Perl6::Variables; # cont’d

%salaries = (
programmer => 77_000,
dept_head => 90_000,
ceo => 220_000,
);


%salaries = (
ceo => 220_000,
);

print %salaries{ programmer };


%salaries = (
ceo => 220_000,
);

print %salaries{ programmer };

print $salaries{ ceo }; # compile error


# references
$products = @products;
$benefits = %benefits;


# references

print $products.[ 2 ];
print $benefits.{ ceo };


# references

print $products.[ 2 ];
print $benefits.{ ceo };

# doesn't exist, still undef
print $benefits.{ peon };


# you can slice
@fired = @employees[ 1..2 ];


# you can slice
@fired = @employees[ 1..2 ];

# you can dice
print %benefits{ ceo => 'janitor' };
print %benefits{ 'manager', 'cto' };
print %benefits{ qw(programmer designer) };

use Perl6::Junction qw/ all none /;


# does anyone care?
if( all( @level_of_interest ) < 0 ) {
print 'review critical success factors';
}


# does anyone care?
if( all( @level_of_interest ) < 0 ) {
print 'review critical success factors';
}

# who is at this meeting?
if( none( @attendee_rank ) eq 'boss' ) {
print “let’s get some work done”;
}

use Perl6::Junction qw/ any one /;


# any questions?
if( any( @hands ) eq 'up' ) {
print 'more synergising!';
}


# any questions?
if( any( @hands ) eq 'up' ) {
print 'more synergising!';
}

if( one( @types ) eq 'highlander' ) {
print 'there can be only one';
}

is any( one @listening ), '?';

use Perl6::Junction qw/
any all none one
/;

# ok
#'<', '<=', '>', '>=', '==', '!=',
#'lt', 'le', 'gt', 'ge', 'eq', 'ne',

use Perl6::Junction qw/
any all none one
/;

# ok
#'<', '<=', '>', '>=', '==', '!=',
#'lt', 'le', 'gt', 'ge', 'eq', 'ne',

# not_ok
# =~ !~

use Perl6::Junction qw/ all /;


if( qr/^d+$/ == all( @salaries ) ) {
...
}


if( qr/^d+$/ == all( @salaries ) ) {
...
}

if( all(@peon_salaries) <= @boss_salaries ){
...
}

use Perl6::Junction qw/ one any /;

my $meeting_time = any(2,4,6);



$VAR1 = bless( [
2,
4,
6,
], 'Perl6::Junction::Any' );



$VAR1 = bless( [
2,
4,
6,
], 'Perl6::Junction::Any' );

if( $meeting_time == $current_time ){
# this is true at 2, 4, and 6
print ‘you have a meeting!’;
}

use Perl6::Slurp;

$complete_manure = slurp 'report';

$ignore = slurp '<suggestion_box';

use Perl6::Slurp;

$corporate_vision = slurp *STDIN;

use Perl6::Slurp;


$corporate_vision = slurp $ceo_butt;

use Perl6::Slurp;



$corporate_vision
= slurp 'ack ? myspace.log |';

use Perl6::Slurp;



$corporate_vision

for( @random_books ) {
$corporate_vision .= slurp;
}

use Perl6::Slurp;



$corporate_vision

for( @random_books ) {
$corporate_vision .= slurp;
}

$_ = undef;
$corporate_vision = slurp;

use Perl6::Perldoc;

=comment
during crunch time, utilise our skill set
to make sure we retain the optimal
position.

use Perl6::Perldoc;

=comment
during crunch time, utilise our skill set
to make sure we retain the optimal
position.

=for DATA
this is a Perl 6 style DATA section

print <DATA>;

=for DATA
you can have more than one of them

use Perl6::Subs;

sub commoditize( $asset ) {
# use $asset here as normal
}

commoditize( 'product1' );

use Perl6::Subs;

sub commoditize (Array $assets) {
# use $assets here as normal
}

commoditize( ['desks', 'chairs'] );

use Perl6::Subs;

sub commoditize (Array $assets, Str $name) {
...
}

commoditize(
['widgets', 'doohickeys'],
'operation enduring money'
);

use Perl6::Subs;

sub commoditize (Array $assets, Str $name) {
...
}

commoditize(
);

commoditize( ['health plan'] ); #shhhh

use Perl6::Subs;

sub commoditize (Array $assets, Str ?$name){{
$name)
...
}

commoditize(
);

commoditize( ['health plan'] ); #shhhh

use Perl6::Subs;

{
package Asset;

method divest (Sucker $buyer) {
$self->sell( to => $buyer );
...
}

method commoditize ($class:) {
print $class;
}

}

Asset->commoditize();

use Perl6::Say;

say 'hi, bob!';

print quot;hi, bob.nquot;;

use Perl6::Say;

say 'hi, bob!';


say @hi;

use Perl6::Say;

say 'hi, bob!';


say @hi;
say FH @hi;

use Perl6::Say;

say 'hi, bob!';


say @hi;
say FH @hi;
FH->say(@hi);

use Perl6::Say;

say 'hi, bob!';


say @hi;
say FH @hi;
FH->say(@hi);
*FH->say(@hi);
say $fh, @hi;
$fh->say(@hi);

use Perl6::Placeholders;

my $grow = { $^a + $^b };


my $grow = { $^a + $^b };

$grow->( 1, 2 );


my $grow = { $^a + $^b };

$grow->( 1, 2 );

$grow->( $business, $random_acquisition );


my $grow = { $^a + $^b };
#3
$grow->( 1, 2 );

# $bloat
$grow->( $business, $random_acquisition );


my @reports_without_coversheet =
grep { ! $report->has_coversheet } @reports;


my @reports_without_coversheet =
grep { ! $report->has_coversheet } @reports;

my %tps_reports =
map { $^rpt->name() => $^rpt->is_tps() } @reports;

for my $group_budget ( @budgets ){
$group_budget -= 10;
}

my %company = (
assets => {
online => {
static_services => [qw/
html_monkey
data_entry
/],
tech => [qw/
programmer
admins
/],
porn_sites => [
'go _________ your __________'
'___ me around the ________'
'what the parrot saw'
],
},
sales => [qw/ groucho chico harpo zeppo gummo /],
},
charities => {
real => [],
tax_shelters =>
[qw/ enron worldcom ceo-offspring_foundation /],
},
);

#$company->{ assets }->{ online }->{ static_services }


my $static_services =
$company->{ assets }->{ products }->{ online }->{ static_services }


my $static_services =

# manipulate $static_services here

= $static_services;

use Perl6::Binding;

my $html_monkeys := $company->{ assets }->{ products }->
{ online_solutions }->{ static_services };

# manipulate $static_services

use Perl6::Binding;

sub deny {
my( $press_release, $conscience, @denials ) := *@_;

say quot;We cannot be held responsible for $_quot; for @denials;
publish( $press_release );

$conscience->{ clean } = 1;
}

# is our conscience is dirty?
if( $conscience->{ clean } == 0 ) {
deny( $press_release, $conscience, @denials );
}

use Perl6::Binding;

sub deny {
my( $press_release, $conscience, @denials ) := *@_;

say quot;We cannot be held responsible for $_quot; for @denials;
publish( $press_release );

$conscience->{ clean } = 1;
}

# is our conscience is dirty?
if( $conscience->{ clean } == 0 ) {
deny( $press_release, $conscience, @denials );
}

# now our conscience is clean (ie, $conscience->{ clean } is 1)

use Perl6::Binding;

my @square_hole := %round_peg;
my $one_meeting := @many_topics;

use Perl6::Classes;

class Employee {
has $.boss;
}

class Manager {
has @.meetings;
}

use Perl6::Classes;

class Employee {
has $.boss;
}

class Manager is Employee {
has @.meetings;
}

use Perl6::Classes;

class Employee {
has $.boss;

method take_a_labs_day is protected { ... }
}

class Manager is Employee {
has @.meetings;

method get_response is private { .... }
}

use Perl6::Classes;

class CorporateClient is Client {

has $.name;
has @.accounts;
has %.meetings_by_date;

sub threaten {
print quot;I own a bunch of shares...quot;;
}
}

use Perl6::Classes;

class CorporateClient is Client {

method complain {
if( $.shares > 1_000_000 ) {
print quot;sir! yes sir!nquot;;
}
else {
print quot;buy more sharesnquot;;
}
}
}

Perl6::Attributes
use Perl6::Attributes;

sub print_client_information {
my ($self) = @_;

print $.name;

print @.purchases;
print $.purchases[ 2 ];
print scalar @.purchases;

print keys %.complaints;
print $.complaints{ RTFM };
}

# perl5

my ( $package, $filename, $line ) = caller;

use Perl6::Caller;

my $package = caller->package;
my $filename = caller->filename;
my $line_number = caller->line;

use Perl6::Caller;

my $sub = caller->subroutine;

use Perl6::Caller;

my $is_require = caller->is_require;

use Perl6::Caller;

my $hasargs = caller->hasargs;

use Perl6::Caller;

my $hasargs = caller->hasargs;
my $wantarray = caller->wantarray;

use Perl6::Caller;

my $caller = caller;

use Perl6::Caller;

my $caller = caller;

$caller->package;
$caller->filename;
$caller->line;
$caller->subroutine;
$caller->is_require;
$caller->hasargs;
$caller->wantarray;

use Perl6::Interpolator;

print “the client says $($client->whinge)”;



print “the agenda today: @($agenda->items)”;



print “the agenda today: @($agenda->items)”;

print “the short version: $($agenda->items)”;

Perl6::Export
The chief export of

is pain.

Attribute::Handlers Perl6::Export::Attrs
Attribute::Types Perl6::Form
Attribute::Overload Perl6::Gather
Attribute::TieClasses Perl6::Interpolators
Attribute::Util Perl6::Junction
Attribute::Deprecated Perl6::Parameters
CLASS Perl6::Perl
Class::Object Perl6::Perldoc
Coro Perl6::Placeholders
NEXT Perl6::Pugs
Scalar::Properties Perl6::Roles
Switch Perl6::Rules
Parrot::Embed Perl6::Say
Perl6::Attributes Perl6::Slurp
Perl6::Binding Perl6::Subs
Perl6::Builtins Perl6::Take
Perl6::Caller Perl6::Tokener
Perl6::Classes Perl6::Variables
Perl6::Contexts Regexp::Parser
Perl6::Currying UNIVERSAL::exports
Perl6::Export Want

For more infomation

Perl6::Bundle

Thanks!
• All of the Perl6::Bundle authors
•(surprisingly not always Damian)
•(also Luke Palmer)
•Don Watson
•OSDC
•realestate.com.au
•You

Josh Heumann
josh@joshheumann.com

I, For One, Welcome Our New Perl6 Overlords

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I, For One, Welcome Our New Perl6 Overlords