NAME

Text::CaboCha - Alternate Interface To libcabocha

SYNOPSIS

    use utf8;
    use Encode;
    use Text::CaboCha;
    my $cabocha = Text::CaboCha->new({
        output_format => $output_format,
        input_layer   => $input_layer,
        output_layer  => $output_layer,
        ne            => $ne,
        parser_model  => $parser_model_file,
        chunker_model => $chunker_model_file,
        ne_model      => $ne_tagger_model_file,
        posset        => $posset,
        charset       => $encode,
        charset_file  => $charset_file,
        rcfile        => $cabocha_rc_file,
        mecabrc       => $mecab_rc_file,
        mecab_dicdir  => $mecab_dicdir,
        mecab_userdic => $mecab_userdic,
        output        => $output_file
    });

    my $text = encode(Text::CaboCha::ENCODING, "太郎は次郎が持っている本を花子に渡した。");
    my $tree = $cabocha->parse($text);
    $tree->tostr(Text::CaboCha::CABOCHA_FORMAT_TREE); # You can check the tree.

    my $token_size = $tree->token_size;

    my $cid = 0;
    for (my $i = 0; $i < $token_size; $i++) {
        my $token = $tree->token($i);
        if ($token->chunk) {
            printf("* %d %dD %d/%d %f\n",
                $cid++,
                $token->chunk->link,
                $token->chunk->head_pos,
                $token->chunk->func_pos,
                $token->chunk->score);
            printf("%s\t%s\t%s\n",
                    $token->surface,
                    $token->feature,
                    $token->ne ? $token->ne : "O");
        }
    }
    printf("EOS\n");

    # use constants
    use Text::CaboCha qw(:all);
    use Text::CaboCha qw(CABOCHA_FORMAT_TREE);
    # check what cabocha version we compiled against?
    print "Compiled with ", Text::CaboCha::CABOCHA_VERSION, "\n";

DESCRIPTION

This module was created with reference to Text::MeCab. Text::CaboCha gives you a more natural, Perl-ish way to access libcabocha!

PERFORMANCE

You can get to the result of running eg/benchmark.pl.

                        Rate           cabocha      text_cabocha text_cabocha_each
    cabocha           17.2/s                --              -27%              -29%
    text_cabocha      23.5/s               36%                --               -3%
    text_cabocha_each 24.2/s               40%                3%                --

METHODS

new HASHREF | LIST

Creates a new Text::CaboCha instance. You can either specify a hashref and use named parameters, or you can use the exact command line arguments that the cabocha command accepts. Below is the list of accepted named options. See the man page for cabocha for details about each option.

output_format

input_layer

output_layer

ne

parser_model

chunker_model

ne_model

posset

charset

charset_file

rcfile

mecabrc

mecab_dicdir

mecab_userdic

output

$tree = $parser->parse(SCALAR)

Parses the given text via CaboCha::Parser, and returns a Text::CaboCha::Tree object.

$tree = $parser->parse_from_node(Text::MeCab::Node)

Parses the given Text::MeCab::Node via CaboCha::Parser, and returns a Text::CaboCha::Tree object.

$version = Text::CaboCha::version()

The version number, as returned by libcabocha's CaboCha::Parser::version()

CONSTANTS

ENCODING

  my $encoding = Text::CaboCha::ENCODING

Returns the encoding of the underlying cabocha library that was detected at compile time.

CABOCHA_VERSION

The version number, same as Text::CaboCha::version().

CABOCHA_TARGET_VERSION

The version number detected at compile time of Text::CaboCha.

CABOCHA_TARGET_MAJOR_VERSION

The version number detected at compile time of Text::CaboCha.

CABOCHA_TARGET_MINOR_VERSION

The version number detected at compile time of Text::CaboCha.

CABOCHA_CONFIG

Path to cabocha-config, if available.

SEE ALSO

https://taku910.github.io/cabocha/

Text::CaboCha

LICENSE

Copyright (C) Kei Kamikawa.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See http://www.perl.com/perl/misc/Artistic.html

AUTHOR

Kei Kamikawa <x00.x7f@gmail.com> @codehex