ACME-Error

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Changes  view on Meta::CPAN

Revision history for Perl extension ACME::Error.

0.01  Fri Sep 20 11:06:02 2002
	- original version; created by h2xs 1.2 with options
		-AXn ACME::Error

Makefile.PL  view on Meta::CPAN

use ExtUtils::MakeMaker;
# See lib/ExtUtils/MakeMaker.pm for details of how to influence
# the contents of the Makefile that is written.
WriteMakefile(
    'NAME'		=> 'ACME::Error',
    'VERSION_FROM'	=> 'lib/ACME/Error.pm', # finds $VERSION
    'PREREQ_PM'		=> {}, # e.g., Module::Name => 1.1
);

lib/ACME/Error.pm  view on Meta::CPAN

package ACME::Error;

use strict;

use vars qw[$VERSION];
$VERSION = '0.03';

sub import {
  my $class = shift;
  if ( my $style = shift ) {
    my $package = qq[ACME::Error::$style];
    my $args    = join q[', '], @_;
    eval qq[use $package '$args'];
    die $@ if $@;
    
    my $nested = -1;

    { no strict 'refs';
      $SIG{__WARN__} = sub {
        local $SIG{__WARN__};
        $nested++;
        my $handler = $package . q[::warn_handler];
        warn &{$handler}(@_) unless $nested;
        warn @_ if $nested;
        $nested--;
      };

      $SIG{__DIE__}  = sub {
        local $SIG{__DIE__};
        $nested++;
        my $handler = $package . q[::die_handler];
        die &{$handler}(@_) unless $nested;
        die @_ if $nested;
        $nested--;
      };
    }

#    $SIG{__WARN__} = sub {
#      my $handler = $package . q[::warn_handler];
#      {
#       no strict 'refs';
#       warn &{$handler} , "\n" if exists &{$handler};
#      }
#    };

#    $SIG{__DIE__}  = sub {
#      my $handler = $package . q[::die_handler];
#      {
#       no strict 'refs';
#       die &{$handler}, "\n" if exists &{$handler};
#      }
#    };
  }
}

1;
__END__

=head1 NAME

ACME::Error - Never have boring errors again!

=head1 SYNOPSIS

  use ACME::Error SHOUT;
  
  warn "Warning"; # WARNING!

=head1 DESCRIPTION

C<ACME::Error> is a front end to Perl error styles.  C<$SIG{__WARN__}> and C<$SIG{__DIE__}>
are intercepted.  Backends are pluggable.  Choose a backend by specifying it when you
C<use ACME::Error SomeStyle>;

=head2 Writing Backends

Writing backends is easy.  See L<ACME::Error::SHOUT> for a simple example.  Basically your

lib/ACME/Error/SHOUT.pm  view on Meta::CPAN

package ACME::Error::SHOUT;

use strict;
no  strict 'refs';

use vars qw[$VERSION];
$VERSION = '0.02';

*warn_handler = *die_handler = sub {
  my @error = @_;
  $error[$_] =~ s/.$/!/g for 0 .. $#error;
  return map uc, @error;
};

1;
__END__
# Below is stub documentation for your module. You better edit it!

=head1 NAME

ACME::Error::SHOUT - ACME::Error Backend to Scream Errors

=head1 SYNOPSIS

  use ACME::Error SHOUT;

=head1 DESCRIPTION

This backend converts your errors to screams.

=head1 AUTHOR

Casey West <F<casey@geeknest.com>>

=head1 COPYRIGHT