Michal Josef Špaček

NAME

Error::Pure::Output::ANSIColor - ANSIColor Output subroutines for Error::Pure.

SYNOPSIS

 use Error::Pure::Output::ANSIColor qw(err_bt_pretty err_bt_pretty_rev err_die err_line
         err_line_all err_print err_print_var);
 my $ret = err_bt_pretty(@errors);
 my @ret = err_bt_pretty(@errors);
 my $ret = err_bt_pretty_rev(@errors);
 my @ret = err_bt_pretty_rev(@errors);
 my $ret = err_die(@errors);
 my $ret = err_line(@errors);
 my $ret = err_line_all(@errors);
 my $ret = err_print(@errors);
 my $ret = err_print_var(@errors);
 my @ret = err_print_var(@errors);

SUBROUTINES

err_bt_pretty(@errors)
 Returns string with full backtrace in scalar context.
 Returns array of full backtrace lines in array context.
 Both with ANSI sequences for terminals.
 Format of error is:
         ERROR: %s
         %s: %s
         ...
         %s %s %s %s
         ...
 Values of error are:
         message
         message as key, $message as value
         ...
         sub, caller, program, line
err_bt_pretty_rev(@errors)
 Reverse version of print for err_bt_pretty().
 Returns string with full backtrace in scalar context.
 Returns array of full backtrace lines in array context.
 Both with ANSI sequences for terminals.
 Format of error is:
         ERROR: %s
         %s: %s
         ...
         %s %s %s %s
         ...
 Values of error are:
         message
         message as key, $message as value
         ...
         sub, caller, program, line
err_die(@errors)
 Returns string with error in classic die style with colors with ANSI sequences for terminals.
 Format of error line is: "%s at %s line %s".
 Values of error line are: $message(s), $program, $line
err_line(@errors)
 Returns string with error on one line with ANSI sequences for terminals.
 Use last error in @errors structure..
 Format of error is: "#Error [%s:%s] %s\n"
 Values of error are: $program, $line, $message
err_line_all(@errors)
 Returns string with errors each on one line with ANSI sequences for terminals.
 Use all errors in @errors structure.
 Format of error line is: "#Error [%s:%s] %s\n"
 Values of error line are: $program, $line, $message
err_print(@errors)
 Print first error with ANSI sequences for terminals.
 If error comes from class, print class name before error.
 Returns string with error.
err_print_var(@errors)
 Print first error with all variables with ANSI sequences for terminals.
 Returns error string in scalar mode.
 Returns lines of error in array mode.

EXAMPLE1

 use strict;
 use warnings;

 use Error::Pure::Output::ANSIColor qw(err_bt_pretty);

 # Fictional error structure.
 my $err_hr = {
         'msg' => [
                 'FOO',
                 'KEY',
                 'VALUE',
         ],
         'stack' => [
                 {
                         'args' => '(2)',
                         'class' => 'main',
                         'line' => 1,
                         'prog' => 'script.pl',
                         'sub' => 'err',
                 }, {
                         'args' => '',
                         'class' => 'main',
                         'line' => 20,
                         'prog' => 'script.pl',
                         'sub' => 'eval {...}',
                 }
         ],
 };

 # Print out.
 print scalar err_bt_pretty($err_hr);

 # Output:
 # ERROR: FOO
 # KEY: VALUE
 # main  err         script.pl  1
 # main  eval {...}  script.pl  20

EXAMPLE2

 use strict;
 use warnings;

 use Error::Pure::Output::ANSIColor qw(err_line_all);

 # Fictional error structure.
 my @err = (
         {
                 'msg' => [
                         'FOO',
                         'BAR',
                 ],
                 'stack' => [
                         {
                                 'args' => '(2)',
                                 'class' => 'main',
                                 'line' => 1,
                                 'prog' => 'script.pl',
                                 'sub' => 'err',
                         }, {
                                 'args' => '',
                                 'class' => 'main',
                                 'line' => 20,
                                 'prog' => 'script.pl',
                                 'sub' => 'eval {...}',
                         }
                 ],
         }, {
                 'msg' => ['XXX'],
                 'stack' => [
                         {
                                 'args' => '',
                                 'class' => 'main',
                                 'line' => 2,
                                 'prog' => 'script.pl',
                                 'sub' => 'err',
                         },
                 ],
         }
 );

 # Print out.
 print err_line_all(@err);

 # Output:
 # #Error [script.pl:1] FOO
 # #Error [script.pl:2] XXX

EXAMPLE3

 use strict;
 use warnings;

 use Error::Pure::Output::ANSIColor qw(err_line);

 # Fictional error structure.
 my $err_hr = {
         'msg' => [
                 'FOO',
                 'BAR',
         ],
         'stack' => [
                 {
                         'args' => '(2)',
                         'class' => 'main',
                         'line' => 1,
                         'prog' => 'script.pl',
                         'sub' => 'err',
                 }, {
                         'args' => '',
                         'class' => 'main',
                         'line' => 20,
                         'prog' => 'script.pl',
                         'sub' => 'eval {...}',
                 }
         ],
 };

 # Print out.
 print err_line($err_hr);

 # Output:
 # #Error [script.pl:1] FOO

EXAMPLE4

 use strict;
 use warnings;

 use Error::Pure::Output::ANSIColor qw(err_bt_pretty);

 # Fictional error structure.
 my @err = (
         {
                 'msg' => [
                         'FOO',
                         'BAR',
                 ],
                 'stack' => [
                         {
                                 'args' => '(2)',
                                 'class' => 'main',
                                 'line' => 1,
                                 'prog' => 'script.pl',
                                 'sub' => 'err',
                         }, {
                                 'args' => '',
                                 'class' => 'main',
                                 'line' => 20,
                                 'prog' => 'script.pl',
                                 'sub' => 'eval {...}',
                         }
                 ],
         }, {
                 'msg' => ['XXX'],
                 'stack' => [
                         {
                                 'args' => '',
                                 'class' => 'main',
                                 'line' => 2,
                                 'prog' => 'script.pl',
                                 'sub' => 'err',
                         },
                 ],
         }
 );

 # Print out.
 print scalar err_bt_pretty(@err);

 # Output:
 # ERROR: FOO
 # BAR
 # main  err         script.pl  1
 # main  eval {...}  script.pl  20
 # ERROR: XXX
 # main  err         script.pl  2

EXAMPLE5

 use strict;
 use warnings;

 use Error::Pure::Output::ANSIColor qw(err_bt_pretty_rev);

 # Fictional error structure.
 my @err = (
         {
                 'msg' => [
                         'FOO',
                         'BAR',
                 ],
                 'stack' => [
                         {
                                 'args' => '(2)',
                                 'class' => 'main',
                                 'line' => 1,
                                 'prog' => 'script.pl',
                                 'sub' => 'err',
                         }, {
                                 'args' => '',
                                 'class' => 'main',
                                 'line' => 20,
                                 'prog' => 'script.pl',
                                 'sub' => 'eval {...}',
                         }
                 ],
         }, {
                 'msg' => ['XXX'],
                 'stack' => [
                         {
                                 'args' => '',
                                 'class' => 'main',
                                 'line' => 2,
                                 'prog' => 'script.pl',
                                 'sub' => 'err',
                         },
                 ],
         }
 );

 # Print out.
 print scalar err_bt_pretty_rev(@err);

 # Output:
 # ERROR: XXX
 # main  err         script.pl  2
 # ERROR: FOO
 # BAR
 # main  err         script.pl  1
 # main  eval {...}  script.pl  20

EXAMPLE6

 use strict;
 use warnings;

 use Error::Pure::Output::ANSIColor qw(err_print);

 # Fictional error structure.
 my $err_hr = {
         'msg' => [
                 'FOO',
                 'BAR',
         ],
         'stack' => [
                 {
                         'args' => '(2)',
                         'class' => 'main',
                         'line' => 1,
                         'prog' => 'script.pl',
                         'sub' => 'err',
                 }, {
                         'args' => '',
                         'class' => 'main',
                         'line' => 20,
                         'prog' => 'script.pl',
                         'sub' => 'eval {...}',
                 }
         ],
 };

 # Print out.
 print err_print($err_hr)."\n";

 # Output:
 # FOO

EXAMPLE7

 use strict;
 use warnings;

 use Error::Pure::Output::ANSIColor qw(err_print);

 # Fictional error structure.
 my $err_hr = {
         'msg' => [
                 'FOO',
                 'BAR',
         ],
         'stack' => [
                 {
                         'args' => '(2)',
                         'class' => 'Class',
                         'line' => 1,
                         'prog' => 'script.pl',
                         'sub' => 'err',
                 }, {
                         'args' => '',
                         'class' => 'mains',
                         'line' => 20,
                         'prog' => 'script.pl',
                         'sub' => 'eval {...}',
                 }
         ],
 };

 # Print out.
 print err_print($err_hr)."\n";

 # Output:
 # Class: FOO

EXAMPLE8

 use strict;
 use warnings;

 use Error::Pure::Output::ANSIColor qw(err_print_var);

 # Fictional error structure.
 my $err_hr = {
         'msg' => [
                 'FOO',
                 'KEY1',
                 'VALUE1',
                 'KEY2',
                 'VALUE2',
         ],
         'stack' => [
                 {
                         'args' => '(2)',
                         'class' => 'main',
                         'line' => 1,
                         'prog' => 'script.pl',
                         'sub' => 'err',
                 }, {
                         'args' => '',
                         'class' => 'main',
                         'line' => 20,
                         'prog' => 'script.pl',
                         'sub' => 'eval {...}',
                 }
         ],
 };

 # Print out.
 print scalar err_print_var($err_hr);

 # Output:
 # ERROR: FOO
 # KEY1: VALUE1
 # KEY2: VALUE2

EXAMPLE9

 use strict;
 use warnings;

 use Error::Pure::Output::ANSIColor qw(err_die);

 # Fictional error structure.
 my $err_hr = {
         'msg' => [
                 'FOO',
                 'KEY1',
                 'VALUE1',
                 'KEY2',
                 'VALUE2',
         ],
         'stack' => [
                 {
                         'args' => '(2)',
                         'class' => 'main',
                         'line' => 1,
                         'prog' => 'script.pl',
                         'sub' => 'err',
                 }, {
                         'args' => '',
                         'class' => 'main',
                         'line' => 20,
                         'prog' => 'script.pl',
                         'sub' => 'eval {...}',
                 }
         ],
 };

 # Print out.
 print err_die($err_hr);

 # Output:
 # FOOKEY1VALUE1KEY2VALUE2 at script.pl line 1.

DEPENDENCIES

Exporter, Readonly, Term::ANSIColor.

SEE ALSO

Task::Error::Pure

Install the Error::Pure modules.

REPOSITORY

https://github.com/tupinek/Error-Pure-Output-ANSIColor

AUTHOR

Michal Špaček mailto:skim@cpan.org

http://skim.cz

LICENSE AND COPYRIGHT

 © 2017 Michal Špaček
 BSD 2-Clause License

VERSION

0.03