Advanced modulinos trial

Advanced Modulinos★ brian d foy The Perl Review Houston Perl Mongers

Files that work asprograms and modules at the same time

Unit testingCode reüseDistribution

# hello.pluse v5.10;say Hello World!;

% perl hello.plHello World!

use v5.10;run();sub run { say Hello World!; }

% perl hello.plHello World!

# Hello.pmuse v5.10;run() unless caller;sub run { say Hello World!; }

% perl hello.plHello World!% perl -MHello -e 1%

package Hello;use v5.10;__PACKAGE__->run unless caller;sub run { say Hello World!; }

use Test::More;use Test::Output;use_ok( Hello );stdout_ok( sub { Hello->run() }, Hello World!, ... );

package Hello;use v5.10;__PACKAGE__->run unless caller;sub run { my( $self ) = @_; say { $self->fh } Hello World!; }

package Hello;use v5.10;...;sub fh { *STDOUT }

use Test::More;use_ok( Hello );our $string;{open my $fh, >, $string;*Hello::fh = sub { $fh };}Hello->run;is($string, Hello World!);

package Hello;use v5.10;...;BEGIN {my $fh = *STDOUT;sub fh { $fh }sub set_fh { $fh = ...;}

use Test::More;use_ok( Hello );open my $fh, >, my $string;Hello->set_fh( $fh );Hello->run;is($string, Hello World!);

% perl hello.plHello World!% perl hello.pl HoustonHello World!% perl hello.pl -m TexasHello World!% perl hello.pl < partiersHello World!

Connect the command line to new()% hello.pl -s Houston ? use Hello; new() my $app->new( input => $in_fh, output => $out_fh, message => $message, ); $app->greet;

sub run { my( $class, @args ) = @_; my %args = $class->process_args(@args); my $self = $class->new(%args); say { $self->fh } $self->message; }

sub process_args { require Getopt::Std; local @ARGV = @_; getopts(oim:, my %opts); $opts(o) //= *STDOUT; $opts(i) //= *STDIN; $opts(m) //= Hello World!; # left over @_? my %args = map { $opts_map{$_} => $opts{$_} } keys %opts; }

$app->new( input_fh => $in, output_fh => $out, message => Hello World! );

sub new { my( $class, %args ) = @_; my $self = bless {}, $class; foreach ( keys %args ) { # maybe more complicated $self->set( $_, $args{$_} ); } return $self; }

Advanced modulinos trial

by _brian d _foy

Accessibility

Categories

Upload Details

Usage Rights

Statistics