1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
package Plucene::Analysis::Analyzer;
=head1 NAME
Plucene::Analysis::Analyzer - base class for Analyzers
=head1 SYNOPSIS
my $analyzer = Plucene::Analysis::Analyzer::Subclass->new;
=head1 DESCRIPTION
This is an abstract base class of Analyzers.
An Analyzer builds TokenStreams, which analyze text. It thus represents
a policy for extracting index terms from text.
Typical implementations first build a Tokenizer, which breaks the stream
of characters from the Reader into raw Tokens. One or more TokenFilters
may then be applied to the output of the Tokenizer.
=head1 METHODS
=cut
use strict;
use warnings;
=head2 new
my $analyzer = Plucene::Analysis::Analyzer::Subclass->new;
=cut
sub new { bless {}, shift }
=head2 tokenstream
This must be defined in a subclass
=cut
sub tokenstream { die "tokenstream must be defined in a subclass" }
1;
|
