NAME

Error::Pure - Perl module for structured errors.

SYNOPSIS

use Error::Pure qw(err);

err 'This is a fatal error', 'name', 'value';

DESCRIPTION

Error::Pure system is replacement for usage of Perl die or Carp croak.

Main features are:

• Structured and defined output

• Stack trace support inside

Full description of intent is in Error::Pure::Intent.

SUBROUTINES

err

err 'This is a fatal error', 'name', 'value';

Process error with message(s). There is key => value list after first message.

VARIABLES

$LEVEL

Error level for Error::Pure.
Default value is 4.

$TYPE

Available are last names in Error::Pure::* modules.
Error::Pure::ErrorList means 'ErrorList'.
If does defined ENV variable 'ERROR_PURE_TYPE', system use it.
Default value is 'Die'.

Precedence:
1) $Error::Pure::TYPE
2) $ENV{'ERROR_PURE_TYPE'}
3) $Error::Pure::TYPE_DEFAULT = 'Die'

EXAMPLE1

use strict;
use warnings;

use Error::Pure qw(err);

# Set env error type.
$ENV{'ERROR_PURE_TYPE'} = 'Die';

# Error.
err '1';

# Output:
# 1 at example1.pl line 9.

EXAMPLE2

use strict;
use warnings;

use Error::Pure qw(err);

# Set env error type.
$ENV{'ERROR_PURE_TYPE'} = 'ErrorList';

# Error.
err '1';

# Output something like:
# #Error [path_to_script:12] 1

EXAMPLE3

use strict;
use warnings;

use Error::Pure qw(err);

# Set error type.
$Error::Pure::TYPE = 'AllError';

# Error.
err '1';

# Output something like:
# ERROR: 1
# main  err  path_to_script  12

EXAMPLE4

use strict;
use warnings;

use Error::Pure qw(err);

$SIG{__DIE__} = sub {
        my $err = shift;
        $err =~ s/ at .*\n//ms;
        $Error::Pure::LEVEL = 5;
        $Error::Pure::TYPE = 'ErrorList';
        err $err;
};

# Error.
die 'Error';

# Output.
# #Error [path_to_script.pl:17] Error

EXAMPLE5

use strict;
use warnings;

use English qw(-no_match_vars);
use Error::Pure qw(err);
use Error::Pure::Utils qw(err_msg_hr);

# Eval block.
eval {
       err 'Error',
              'Key1', 'Value1',
              'Key2', 'Value2';
};
if ($EVAL_ERROR) {
       print $EVAL_ERROR;
       my $err_msg_hr = err_msg_hr();
       foreach my $key (sort keys %{$err_msg_hr}) {
              print "$key: $err_msg_hr->{$key}\n";
       }
}

# Output.
# Error
# Key1: Value1
# Key2: Value2

DEPENDENCIES

English, Error::Pure::Utils, Exporter, Readonly.

SEE ALSO

Task::Error::Pure

Install the Error::Pure modules.

ACKNOWLEDGMENTS

Jakub Špičak and his Masser (http://masser.sf.net).

REPOSITORY

https://github.com/michal-josef-spacek/Error-Pure

AUTHOR

Michal Josef Špaček mailto:skim@cpan.org

http://skim.cz

LICENSE AND COPYRIGHT

© 2008-2024 Michal Josef Špaček

BSD 2-Clause License

VERSION

0.34

cpanm Error::Pure

perl -MCPAN -e shell
install Error::Pure