Marvin Humphrey

NAME

KinoSearch1::Highlight::Highlighter - create and highlight excerpts

SYNOPSIS

    my $highlighter = KinoSearch1::Highlight::Highlighter->new(
        excerpt_field  => 'bodytext',
    );
    $hits->create_excerpts( highlighter => $highlighter );

DESCRIPTION

KinoSearch1's Highlighter can be used to select a relevant snippet from a document, and to surround search terms with highlighting tags. It handles both stems and phrases correctly and efficiently, using special-purpose data generated at index-time.

METHODS

new

    my $highlighter = KinoSearch1::Highlight::Highlighter->new(
        excerpt_field  => 'bodytext', # required
        excerpt_length => 150,        # default: 200
        formatter      => $formatter, # default: SimpleHTMLFormatter
        encoder        => $encoder,   # default: SimpleHTMLEncoder
    );

Constructor. Takes hash-style parameters:

  • excerpt_field - the name of the field from which to draw the excerpt. This field must be vectorized.

  • excerpt_length - the length of the excerpt, in bytes. This should probably use characters as a unit instead of bytes, and the behavior is likely to change in the future.

  • formatter - an object which subclasses KinoSearch1::Highlight::Formatter, used to perform the actual highlighting.

  • encoder - an object which subclasses KinoSearch1::Highlight::Encoder. All excerpt text gets passed through the encoder, including highlighted terms. By default, this is a SimpleHTMLEncoder, which encodes HTML entities.

  • pre_tag - deprecated.

  • post_tag - deprecated.

COPYRIGHT

Copyright 2005-2010 Marvin Humphrey

LICENSE, DISCLAIMER, BUGS, etc.

See KinoSearch1 version 1.01.




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