NAME

PYX::Hist - Processing PYX data or file and print histogram.

SYNOPSIS

 use PYX::Hist;

 my $obj = PYX::Hist->new(%parameters);
 $obj->parse($pyx, $out);
 $obj->parse_file($input_file, $out);
 $obj->parse_handle($input_file_handler, $out);

METHODS

new(%parameters)

 Constructor.

• output_handler

   Output handler.
   Default value is \*STDOUT.

parse($pyx[, $out])

 Parse PYX text or array of PYX text and print histogram of PYX input.
 If $out not present, use 'output_handler'.
 Returns undef.

parse_file($input_file[, $out])

 Parse file with PYX data and print histogram of PYX input.
 If $out not present, use 'output_handler'.
 Returns undef.

parse_handler($input_file_handler[, $out])

 Parse PYX handler and print histogram of PYX input.
 If $out not present, use 'output_handler'.
 Returns undef.

ERRORS

 new():
         From Class::Utils::set_params():
                 Unknown parameter '%s'.

 parse():
         Bad end of element.
                 Element: %s
         Stack has some elements.

 parse_file():
         Bad end of element.
                 Element: %s
         Stack has some elements.

 parse_handler():
         Bad end of element.
                 Element: %s
         Stack has some elements.

EXAMPLE1

 use strict;
 use warnings;

 use PYX::Hist;

 # Example data.
 my $pyx = <<'END';
 (begin
 (middle
 (end
 -data
 )end
 (end
 -data
 )end
 )middle
 )begin
 END

 # PYX::Hist object.
 my $obj = PYX::Hist->new;

 # Parse.
 $obj->parse($pyx);

 # Output:
 # [ begin  ] 1
 # [ end    ] 2
 # [ middle ] 1

EXAMPLE2

 use strict;
 use warnings;

 use Error::Pure;
 use PYX::Hist;

 # Error output.
 $Error::Pure::TYPE = 'PrintVar';

 # Example data.
 my $pyx = <<'END';
 (begin
 (middle
 (end
 -data
 )middle
 )begin
 END

 # PYX::Hist object.
 my $obj = PYX::Hist->new;

 # Parse.
 $obj->parse($pyx);

 # Output:
 # PYX::Hist: Bad end of element.
 # Element: middle

EXAMPLE3

 use strict;
 use warnings;

 use Error::Pure;
 use PYX::Hist;

 # Error output.
 $Error::Pure::TYPE = 'PrintVar';

 # Example data.
 my $pyx = <<'END';
 (begin
 (middle
 (end
 -data
 )end
 )middle
 END

 # PYX::Hist object.
 my $obj = PYX::Hist->new;

 # Parse.
 $obj->parse($pyx);

 # Output:
 # PYX::Hist: Stack has some elements.

DEPENDENCIES

Class::Utils, Error::Pure, List::Util, PYX::Parser.

SEE ALSO

Task::PYX

Install the PYX modules.

REPOSITORY

https://github.com/michal-josef-spacek/PYX-Hist

AUTHOR

Michal Josef Špaček mailto:skim@cpan.org

http://skim.cz

LICENSE AND COPYRIGHT

© 2014-2020 Michal Josef Špaček

BSD 2-Clause License

VERSION

0.05