module SloveneStemmer

Inspired by: snowball.tartarus.org/archives/snowball-discuss/0725.html

Constants

ALPHABET
CONSONANTS
Stem
VERSION
VOWELS
WORD_ENDINGS

Public Instance Methods

load_endings() click to toggle source

# File lib/slovene_stemmer.rb, line 8
def load_endings
  config_path = File.expand_path("../../config/slovene_stemmer.yml", __FILE__)

  YAML.load_file(config_path)['word_endings'].group_by(&:length)
rescue => e
  raise "Please provide a valid config/stemmer.yml file, #{e}"
end

stem(word) click to toggle source

# File lib/slovene_stemmer.rb, line 21
def stem(word)
  stem = Stem.new(word.strip)
  stem.remove_symbols!

  4.times do
    WORD_ENDINGS.each do |ending_length, endings|
      next if stem.length <= ending_length + 3

      stem.remove_last_char! if stem.ends_with?(endings)
    end

    if stem.length > 6 && stem.ends_with?(CONSONANTS.chars)
      stem.remove_last_char!
    end

    if stem.length > 5 && stem.ends_with?(VOWELS.chars)
      stem.remove_last_char!
    end
  end

  stem.to_s
end