NAME¶

Lucy::Search::Span - An offset, a length, and a weight.

SYNOPSIS¶

    my $combined_length = $upper_span->get_length
        + ( $upper_span->get_offset - $lower_span->get_offset );
    my $combined_span = Lucy::Search::Span->new(
        offset => $lower_span->get_offset,
        length => $combined_length,
    );
    ...

DESCRIPTION¶

Span objects store information about a span across an array of... something. The unit is context-dependent. Text is one possibility, in which case offset and length might be measured in Unicode code points. However, the Span could also refer to a span within an array of tokens, for example -- in which case the start and offset might be measured in token positions.

CONSTRUCTORS¶

new( [labeled params] )¶

    my $span = Lucy::Search::Span->new(
        offset => 75,     # required
        length => 7,      # required
        weight => 1.0,    # default 0.0
    );

•

offset - Integer offset, unit is context-dependent.

•

length - Integer length, unit is context-dependent.

•

weight - A floating point weight.

METHODS¶

set_offset(offset)¶

Setter for "offset" attribute.

get_offset()¶

Accessor for "offset" attribute.

set_length(length)¶

Setter for "length" attribute.

get_length()¶

Accessor for "length" attribute.

set_weight(weight)¶

Setter for "weight" attribute.

get_weight()¶

Accessor for "weight" attribute.

INHERITANCE¶

Lucy::Search::Span isa Lucy::Object::Obj.