NAME

PYX::Parser - PYX parser with callbacks.

SYNOPSIS

use PYX::Parser;

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

METHODS

new

my $obj = PYX::Parser->new(%parameters);

Constructor.

• callbacks

  Callbacks.

  • attribute

    Attribute callback.
    Default value is undef.

  • comment

    Comment callback.
    Default value is undef.

  • data

    Data callback.
    Default value is undef.

  • end_element

    End of element callback.
    Default value is undef.

  • final

    Final callback.
    Default value is undef.

  • init

    Init callback.
    Default value is undef.

  • instruction

    Instruction callback.
    Default value is undef.

  • rewrite

    Rewrite callback.
    Callback is used on every line.
    Default value is undef.

  • start_element

    Start of element callback.
    Default value is undef.

  • other

    Other Callback.
    Default value is undef.

• input_encoding

  Input encoding for parse_file() and parse_handler() usage.
  Default value is 'utf-8'.

• non_parser_options

  Non parser options.
  Default value is blank reference to hash.

• output_encoding

  Output encoding.
  Default value is 'utf-8'.

• output_handler

  Output handler.
  Default value is \*STDOUT.

• output_rewrite

  Output rewrite.
  Default value is 0.

line

my $line = $obj->line;

Get actual parsing line.

Returns string.

parse

$obj->parse($pyx, $out);

Parse PYX text or array of PYX text. If $out not present, use 'output_handler'.

Returns undef.

parse_file

$obj->parse_file($input_file, $out);

Parse file with PYX data. $input_file file is decoded by 'input_encoding'. If $out not present, use 'output_handler'.

Returns undef.

parse_handler

$obj->parse_handle($input_file_handler, $out);

Parse PYX handler. $input_file_handler handler is decoded by 'input_encoding'. If $out not present, use 'output_handler'.

Returns undef.

ERRORS

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

parse():
        Bad PYX line '%s'.

parse_file():
        Bad PYX line '%s'.
        No input handler.

parse_handler():
        Bad PYX line '%s'.
        No input handler.

EXAMPLE

 use strict;
 use warnings;

 use PYX::Parser;

 # Open file.
 my $file_handler = \*STDIN;
 my $file = $ARGV[0];
 if ($file) {
        if (! open(INF, '<', $file)) {
                die "Cannot open file '$file'.";
        }
        $file_handler = \*INF;
 }

 # PYX::Parser object.
 my $parser = PYX::Parser->new(
	'callbacks' => {
        	'start_element' => \&start_element,
        	'end_element' => \&end_element,
	},
 );
 $parser->parse_handler($file_handler);

 # Close file.
 if ($file) {
        close(INF);
 }

 # Start element callback.
 sub start_element {
        my ($self, $elem) = @_;
        print "Start of element '$elem'.\n";
        return;
 }

 # End element callback.
 sub end_element {
        my ($self, $elem) = @_;
        print "End of element '$elem'.\n";
        return;
 }

DEPENDENCIES

Class::Utils, Encode, Error::Pure, Readonly.

SEE ALSO

Task::PYX

Install the PYX modules.

REPOSITORY

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

AUTHOR

Michal Josef Špaček mailto:skim@cpan.org

http://skim.cz

LICENSE AND COPYRIGHT

© 2005-2023 Michal Josef Špaček

BSD 2-Clause License

VERSION

0.09

cpanm PYX

perl -MCPAN -e shell
install PYX