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Ferret::Analysis::WhiteSpaceAnalyzer

Summary

The WhiteSpaceAnalyzer recognizes tokens as maximal strings of non-whitespace characters. If implemented in Ruby the WhiteSpaceAnalyzer would look like;

class WhiteSpaceAnalyzer
  def initialize(lower = true)
    @lower = lower
  end

  def token_stream(field, str)
    return WhiteSpaceTokenizer.new(str, @lower)
  end
end

As you can see it makes use of the WhiteSpaceTokenizer.

Public Class Methods

new(lower = false) → analyzer click to toggle source

Create a new WhiteSpaceAnalyzer which downcases tokens by default but can optionally leave case as is. Lowercasing will be done based on the current locale.

lower

set to false if you don’t want the field’s tokens to be downcased

static VALUE
frb_white_space_analyzer_init(int argc, VALUE *argv, VALUE self)
{
    Analyzer *a;
    GET_LOWER(false);
#ifndef POSH_OS_WIN32
    if (!frb_locale) frb_locale = setlocale(LC_CTYPE, "");
#endif
    a = mb_whitespace_analyzer_new(lower);
    Frt_Wrap_Struct(self, NULL, &frb_analyzer_free, a);
    object_add(a, self);
    return self;
}

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