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SKIM / Error-Pure-HTTP-0.16 / HTTP / ErrorList.pm 

            

              
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package Error::Pure::HTTP::ErrorList;
use base qw(Exporter);
use strict;
use warnings;
use Error::Pure::Utils qw(err_helper);
use Error::Pure::Output::Text qw(err_line_all);
use List::MoreUtils qw(none);
use Readonly;
# Constants.
Readonly::Array our @EXPORT_OK => qw(err);
Readonly::Scalar my $EVAL => 'eval {...}';
# Version.
our $VERSION = 0.16;
# Ignore die signal.
$SIG{__DIE__} = 'IGNORE';
# Process error.
sub err {
        my @msg = @_;
        # Get errors structure.
        my @errors = err_helper(@msg);
        # Finalize in main on last err.
        my $stack_ar = $errors[-1]->{'stack'};
        if ($stack_ar->[-1]->{'class'} eq 'main'
                && none { $_ eq $EVAL || $_ =~ /^eval '/ms }
                map { $_->{'sub'} } @{$stack_ar}) {
                print "Content-type: text/plain\n\n";
                print err_line_all(@errors);
                return;
        # Die for eval.
        } else {
                my $e = $errors[-1]->{'msg'}->[0];
                if (! defined $e) {
                        $e = 'undef';
                } else {
                        chomp $e;
                }
                die "$e\n";
        }
        return;
}
1;
__END__
=pod
=encoding utf8
=head1 NAME
Error::Pure::ErrorList - Error::Pure module with list of errors in one line
with informations over HTTP.
=head1 SYNOPSIS
 use Error::Pure::HTTP::ErrorList qw(err);
 err "This is a fatal error.", "name", "value";
=head1 SUBROUTINES
=over 4
=item B<err(@messages)>
 Process error with messages @messages.
=back
=head1 EXAMPLE1
=for comment filename=error_list.pl
 use strict;
 use warnings;
 use Error::Pure::HTTP::ErrorList qw(err);
 # Error.
 err '1';
 # Output like this:
 # Content-type: text/plain
 #
 # #Error [script.pl:11] 1
=head1 EXAMPLE2
=for comment filename=error_list_with_arguments.pl
 use strict;
 use warnings;
 use Error::Pure::HTTP::ErrorList qw(err);
 # Error.
 err '1', '2', '3';
 # Output like this:
 # Content-type: text/plain
 #
 # #Error [script.pl:11] 1
=head1 EXAMPLE3
=for comment filename=error_list_multiple.pl
 use strict;
 use warnings;
 use English qw(-no_match_vars);
 use Error::Pure::HTTP::ErrorList qw(err);
 # Error.
 eval { err "1"; };
 if ($EVAL_ERROR) {
        err "2";
 }
 # Output like this:
 # Content-type: text/plain
 # 
 # #Error [script.pl:12] 1
 # #Error [script.pl:13] 2
=head1 DEPENDENCIES
L<Error::Pure::Utils>,
L<Error::Pure::Output::Text>,
L<Exporter>,
L<List::MoreUtils>,
L<Readonly>.
=head1 SEE ALSO
=over
=item L<Task::Error::Pure>
Install the Error::Pure modules.
=back
=head1 REPOSITORY
L<https://github.com/michal-josef-spacek/Error-Pure>
=head1 AUTHOR
Michal Josef Špaček L<mailto:skim@cpan.org>
L<http://skim.cz>
=head1 LICENSE AND COPYRIGHT
© 2012-2023 Michal Josef Špaček
BSD 2-Clause License
=head1 VERSION
0.16
=cut