Class: Ferret::Analysis::AsciiLetterAnalyzer

Inherits:

Object

Object
Ferret::Analysis::AsciiLetterAnalyzer

show all

Defined in:: ext/r_analysis.c

Overview

Summary

An AsciiLetterAnalyzer creates a TokenStream that splits the input up into maximal strings of ASCII characters. If implemented in Ruby it would look like;

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

def token_stream(field, str)
  if @lower
    return AsciiLowerCaseFilter.new(AsciiLetterTokenizer.new(str))
  else
    return AsciiLetterTokenizer.new(str)
  end
end
end

As you can see it makes use of the AsciiLetterTokenizer and AsciiLowerCaseFilter. Note that this tokenizer won't recognize non-ASCII characters so you should use the LetterAnalyzer is you want to analyze multi-byte data like "UTF-8".